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-rw-r--r--fs/Kconfig2
-rw-r--r--fs/afs/Makefile1
-rw-r--r--fs/afs/afs.h8
-rw-r--r--fs/afs/afs_fs.h3
-rw-r--r--fs/afs/callback.c3
-rw-r--r--fs/afs/dir.c1
-rw-r--r--fs/afs/file.c2
-rw-r--r--fs/afs/flock.c558
-rw-r--r--fs/afs/fsclient.c155
-rw-r--r--fs/afs/internal.h30
-rw-r--r--fs/afs/main.c1
-rw-r--r--fs/afs/misc.c1
-rw-r--r--fs/afs/proc.c81
-rw-r--r--fs/afs/super.c3
-rw-r--r--fs/afs/vnode.c132
-rw-r--r--fs/anon_inodes.c10
-rw-r--r--fs/binfmt_elf.c109
-rw-r--r--fs/block_dev.c63
-rw-r--r--fs/buffer.c5
-rw-r--r--fs/compat_ioctl.c4
-rw-r--r--fs/drop_caches.c2
-rw-r--r--fs/ext2/file.c6
-rw-r--r--fs/ext2/super.c20
-rw-r--r--fs/ext3/inode.c2
-rw-r--r--fs/ext3/namei.c10
-rw-r--r--fs/ext3/super.c51
-rw-r--r--fs/ext4/balloc.c2
-rw-r--r--fs/ext4/namei.c10
-rw-r--r--fs/ext4/super.c48
-rw-r--r--fs/fat/dir.c31
-rw-r--r--fs/fat/fatent.c7
-rw-r--r--fs/fat/inode.c3
-rw-r--r--fs/freevxfs/vxfs_dir.h2
-rw-r--r--fs/gfs2/eaops.c1
-rw-r--r--fs/hfsplus/btree.c4
-rw-r--r--fs/hfsplus/dir.c2
-rw-r--r--fs/hfsplus/hfsplus_fs.h4
-rw-r--r--fs/hfsplus/inode.c5
-rw-r--r--fs/hfsplus/super.c4
-rw-r--r--fs/hfsplus/unicode.c230
-rw-r--r--fs/hugetlbfs/inode.c96
-rw-r--r--fs/ioctl.c22
-rw-r--r--fs/isofs/dir.c87
-rw-r--r--fs/isofs/inode.c417
-rw-r--r--fs/isofs/joliet.c10
-rw-r--r--fs/isofs/namei.c26
-rw-r--r--fs/jbd/commit.c3
-rw-r--r--fs/jbd/revoke.c5
-rw-r--r--fs/jbd2/commit.c3
-rw-r--r--fs/jbd2/revoke.c5
-rw-r--r--fs/namespace.c23
-rw-r--r--fs/ncpfs/file.c2
-rw-r--r--fs/nfs/client.c54
-rw-r--r--fs/nls/Makefile2
-rw-r--r--fs/open.c14
-rw-r--r--fs/partitions/acorn.c9
-rw-r--r--fs/proc/array.c15
-rw-r--r--fs/proc/base.c83
-rw-r--r--fs/proc/generic.c52
-rw-r--r--fs/proc/inode.c254
-rw-r--r--fs/proc/proc_misc.c7
-rw-r--r--fs/proc/proc_tty.c15
-rw-r--r--fs/quota.c118
-rw-r--r--fs/reiserfs/file.c1
-rw-r--r--fs/seq_file.c18
-rw-r--r--fs/splice.c4
-rw-r--r--fs/super.c1
-rw-r--r--fs/udf/crc.c4
-rw-r--r--fs/udf/ialloc.c9
-rw-r--r--fs/udf/inode.c51
-rw-r--r--fs/ufs/super.c5
71 files changed, 2263 insertions, 768 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index 94b9d861bf9b..ee11f8d94085 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -991,7 +991,7 @@ config TMPFS_POSIX_ACL
991 991
992config HUGETLBFS 992config HUGETLBFS
993 bool "HugeTLB file system support" 993 bool "HugeTLB file system support"
994 depends on X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN 994 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || BROKEN
995 help 995 help
996 hugetlbfs is a filesystem backing for HugeTLB pages, based on 996 hugetlbfs is a filesystem backing for HugeTLB pages, based on
997 ramfs. For architectures that support it, say Y here and read 997 ramfs. For architectures that support it, say Y here and read
diff --git a/fs/afs/Makefile b/fs/afs/Makefile
index 73ce561f3ea0..a66671082cfb 100644
--- a/fs/afs/Makefile
+++ b/fs/afs/Makefile
@@ -8,6 +8,7 @@ kafs-objs := \
8 cmservice.o \ 8 cmservice.o \
9 dir.o \ 9 dir.o \
10 file.o \ 10 file.o \
11 flock.o \
11 fsclient.o \ 12 fsclient.o \
12 inode.o \ 13 inode.o \
13 main.o \ 14 main.o \
diff --git a/fs/afs/afs.h b/fs/afs/afs.h
index 245257948140..c548aa346f0d 100644
--- a/fs/afs/afs.h
+++ b/fs/afs/afs.h
@@ -37,6 +37,13 @@ typedef enum {
37 AFS_FTYPE_SYMLINK = 3, 37 AFS_FTYPE_SYMLINK = 3,
38} afs_file_type_t; 38} afs_file_type_t;
39 39
40typedef enum {
41 AFS_LOCK_READ = 0, /* read lock request */
42 AFS_LOCK_WRITE = 1, /* write lock request */
43} afs_lock_type_t;
44
45#define AFS_LOCKWAIT (5 * 60) /* time until a lock times out (seconds) */
46
40/* 47/*
41 * AFS file identifier 48 * AFS file identifier
42 */ 49 */
@@ -120,6 +127,7 @@ struct afs_file_status {
120 struct afs_fid parent; /* parent dir ID for non-dirs only */ 127 struct afs_fid parent; /* parent dir ID for non-dirs only */
121 time_t mtime_client; /* last time client changed data */ 128 time_t mtime_client; /* last time client changed data */
122 time_t mtime_server; /* last time server changed data */ 129 time_t mtime_server; /* last time server changed data */
130 s32 lock_count; /* file lock count (0=UNLK -1=WRLCK +ve=#RDLCK */
123}; 131};
124 132
125/* 133/*
diff --git a/fs/afs/afs_fs.h b/fs/afs/afs_fs.h
index a18c374ebe08..eb647323d8f0 100644
--- a/fs/afs/afs_fs.h
+++ b/fs/afs/afs_fs.h
@@ -31,6 +31,9 @@ enum AFS_FS_Operations {
31 FSGETVOLUMEINFO = 148, /* AFS Get information about a volume */ 31 FSGETVOLUMEINFO = 148, /* AFS Get information about a volume */
32 FSGETVOLUMESTATUS = 149, /* AFS Get volume status information */ 32 FSGETVOLUMESTATUS = 149, /* AFS Get volume status information */
33 FSGETROOTVOLUME = 151, /* AFS Get root volume name */ 33 FSGETROOTVOLUME = 151, /* AFS Get root volume name */
34 FSSETLOCK = 156, /* AFS Request a file lock */
35 FSEXTENDLOCK = 157, /* AFS Extend a file lock */
36 FSRELEASELOCK = 158, /* AFS Release a file lock */
34 FSLOOKUP = 161, /* AFS lookup file in directory */ 37 FSLOOKUP = 161, /* AFS lookup file in directory */
35 FSFETCHDATA64 = 65537, /* AFS Fetch file data */ 38 FSFETCHDATA64 = 65537, /* AFS Fetch file data */
36 FSSTOREDATA64 = 65538, /* AFS Store file data */ 39 FSSTOREDATA64 = 65538, /* AFS Store file data */
diff --git a/fs/afs/callback.c b/fs/afs/callback.c
index bacf518c6fa8..b8243945818d 100644
--- a/fs/afs/callback.c
+++ b/fs/afs/callback.c
@@ -125,6 +125,9 @@ static void afs_break_callback(struct afs_server *server,
125 spin_unlock(&server->cb_lock); 125 spin_unlock(&server->cb_lock);
126 126
127 queue_work(afs_callback_update_worker, &vnode->cb_broken_work); 127 queue_work(afs_callback_update_worker, &vnode->cb_broken_work);
128 if (list_empty(&vnode->granted_locks) &&
129 !list_empty(&vnode->pending_locks))
130 afs_lock_may_be_available(vnode);
128 spin_unlock(&vnode->lock); 131 spin_unlock(&vnode->lock);
129 } 132 }
130} 133}
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 546c59522eb1..33fe39ad4e03 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -44,6 +44,7 @@ const struct file_operations afs_dir_file_operations = {
44 .open = afs_dir_open, 44 .open = afs_dir_open,
45 .release = afs_release, 45 .release = afs_release,
46 .readdir = afs_readdir, 46 .readdir = afs_readdir,
47 .lock = afs_lock,
47}; 48};
48 49
49const struct inode_operations afs_dir_inode_operations = { 50const struct inode_operations afs_dir_inode_operations = {
diff --git a/fs/afs/file.c b/fs/afs/file.c
index aede7eb66dd4..525f7c56e068 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -34,6 +34,8 @@ const struct file_operations afs_file_operations = {
34 .mmap = generic_file_readonly_mmap, 34 .mmap = generic_file_readonly_mmap,
35 .splice_read = generic_file_splice_read, 35 .splice_read = generic_file_splice_read,
36 .fsync = afs_fsync, 36 .fsync = afs_fsync,
37 .lock = afs_lock,
38 .flock = afs_flock,
37}; 39};
38 40
39const struct inode_operations afs_file_inode_operations = { 41const struct inode_operations afs_file_inode_operations = {
diff --git a/fs/afs/flock.c b/fs/afs/flock.c
new file mode 100644
index 000000000000..8f07f8d1bfa9
--- /dev/null
+++ b/fs/afs/flock.c
@@ -0,0 +1,558 @@
1/* AFS file locking support
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <linux/smp_lock.h>
13#include "internal.h"
14
15#define AFS_LOCK_GRANTED 0
16#define AFS_LOCK_PENDING 1
17
18static void afs_fl_copy_lock(struct file_lock *new, struct file_lock *fl);
19static void afs_fl_release_private(struct file_lock *fl);
20
21static struct workqueue_struct *afs_lock_manager;
22
23static struct file_lock_operations afs_lock_ops = {
24 .fl_copy_lock = afs_fl_copy_lock,
25 .fl_release_private = afs_fl_release_private,
26};
27
28/*
29 * initialise the lock manager thread if it isn't already running
30 */
31static int afs_init_lock_manager(void)
32{
33 if (!afs_lock_manager) {
34 afs_lock_manager = create_singlethread_workqueue("kafs_lockd");
35 if (!afs_lock_manager)
36 return -ENOMEM;
37 }
38 return 0;
39}
40
41/*
42 * destroy the lock manager thread if it's running
43 */
44void __exit afs_kill_lock_manager(void)
45{
46 if (afs_lock_manager)
47 destroy_workqueue(afs_lock_manager);
48}
49
50/*
51 * if the callback is broken on this vnode, then the lock may now be available
52 */
53void afs_lock_may_be_available(struct afs_vnode *vnode)
54{
55 _enter("{%x:%u}", vnode->fid.vid, vnode->fid.vnode);
56
57 queue_delayed_work(afs_lock_manager, &vnode->lock_work, 0);
58}
59
60/*
61 * the lock will time out in 5 minutes unless we extend it, so schedule
62 * extension in a bit less than that time
63 */
64static void afs_schedule_lock_extension(struct afs_vnode *vnode)
65{
66 queue_delayed_work(afs_lock_manager, &vnode->lock_work,
67 AFS_LOCKWAIT * HZ / 2);
68}
69
70/*
71 * do work for a lock, including:
72 * - probing for a lock we're waiting on but didn't get immediately
73 * - extending a lock that's close to timing out
74 */
75void afs_lock_work(struct work_struct *work)
76{
77 struct afs_vnode *vnode =
78 container_of(work, struct afs_vnode, lock_work.work);
79 struct file_lock *fl;
80 afs_lock_type_t type;
81 struct key *key;
82 int ret;
83
84 _enter("{%x:%u}", vnode->fid.vid, vnode->fid.vnode);
85
86 spin_lock(&vnode->lock);
87
88 if (test_bit(AFS_VNODE_UNLOCKING, &vnode->flags)) {
89 _debug("unlock");
90 spin_unlock(&vnode->lock);
91
92 /* attempt to release the server lock; if it fails, we just
93 * wait 5 minutes and it'll time out anyway */
94 ret = afs_vnode_release_lock(vnode, vnode->unlock_key);
95 if (ret < 0)
96 printk(KERN_WARNING "AFS:"
97 " Failed to release lock on {%x:%x} error %d\n",
98 vnode->fid.vid, vnode->fid.vnode, ret);
99
100 spin_lock(&vnode->lock);
101 key_put(vnode->unlock_key);
102 vnode->unlock_key = NULL;
103 clear_bit(AFS_VNODE_UNLOCKING, &vnode->flags);
104 }
105
106 /* if we've got a lock, then it must be time to extend that lock as AFS
107 * locks time out after 5 minutes */
108 if (!list_empty(&vnode->granted_locks)) {
109 _debug("extend");
110
111 if (test_and_set_bit(AFS_VNODE_LOCKING, &vnode->flags))
112 BUG();
113 fl = list_entry(vnode->granted_locks.next,
114 struct file_lock, fl_u.afs.link);
115 key = key_get(fl->fl_file->private_data);
116 spin_unlock(&vnode->lock);
117
118 ret = afs_vnode_extend_lock(vnode, key);
119 clear_bit(AFS_VNODE_LOCKING, &vnode->flags);
120 key_put(key);
121 switch (ret) {
122 case 0:
123 afs_schedule_lock_extension(vnode);
124 break;
125 default:
126 /* ummm... we failed to extend the lock - retry
127 * extension shortly */
128 printk(KERN_WARNING "AFS:"
129 " Failed to extend lock on {%x:%x} error %d\n",
130 vnode->fid.vid, vnode->fid.vnode, ret);
131 queue_delayed_work(afs_lock_manager, &vnode->lock_work,
132 HZ * 10);
133 break;
134 }
135 _leave(" [extend]");
136 return;
137 }
138
139 /* if we don't have a granted lock, then we must've been called back by
140 * the server, and so if might be possible to get a lock we're
141 * currently waiting for */
142 if (!list_empty(&vnode->pending_locks)) {
143 _debug("get");
144
145 if (test_and_set_bit(AFS_VNODE_LOCKING, &vnode->flags))
146 BUG();
147 fl = list_entry(vnode->pending_locks.next,
148 struct file_lock, fl_u.afs.link);
149 key = key_get(fl->fl_file->private_data);
150 type = (fl->fl_type == F_RDLCK) ?
151 AFS_LOCK_READ : AFS_LOCK_WRITE;
152 spin_unlock(&vnode->lock);
153
154 ret = afs_vnode_set_lock(vnode, key, type);
155 clear_bit(AFS_VNODE_LOCKING, &vnode->flags);
156 switch (ret) {
157 case -EWOULDBLOCK:
158 _debug("blocked");
159 break;
160 case 0:
161 _debug("acquired");
162 if (type == AFS_LOCK_READ)
163 set_bit(AFS_VNODE_READLOCKED, &vnode->flags);
164 else
165 set_bit(AFS_VNODE_WRITELOCKED, &vnode->flags);
166 ret = AFS_LOCK_GRANTED;
167 default:
168 spin_lock(&vnode->lock);
169 /* the pending lock may have been withdrawn due to a
170 * signal */
171 if (list_entry(vnode->pending_locks.next,
172 struct file_lock, fl_u.afs.link) == fl) {
173 fl->fl_u.afs.state = ret;
174 if (ret == AFS_LOCK_GRANTED)
175 list_move_tail(&fl->fl_u.afs.link,
176 &vnode->granted_locks);
177 else
178 list_del_init(&fl->fl_u.afs.link);
179 wake_up(&fl->fl_wait);
180 spin_unlock(&vnode->lock);
181 } else {
182 _debug("withdrawn");
183 clear_bit(AFS_VNODE_READLOCKED, &vnode->flags);
184 clear_bit(AFS_VNODE_WRITELOCKED, &vnode->flags);
185 spin_unlock(&vnode->lock);
186 afs_vnode_release_lock(vnode, key);
187 if (!list_empty(&vnode->pending_locks))
188 afs_lock_may_be_available(vnode);
189 }
190 break;
191 }
192 key_put(key);
193 _leave(" [pend]");
194 return;
195 }
196
197 /* looks like the lock request was withdrawn on a signal */
198 spin_unlock(&vnode->lock);
199 _leave(" [no locks]");
200}
201
202/*
203 * pass responsibility for the unlocking of a vnode on the server to the
204 * manager thread, lest a pending signal in the calling thread interrupt
205 * AF_RXRPC
206 * - the caller must hold the vnode lock
207 */
208static void afs_defer_unlock(struct afs_vnode *vnode, struct key *key)
209{
210 cancel_delayed_work(&vnode->lock_work);
211 if (!test_and_clear_bit(AFS_VNODE_READLOCKED, &vnode->flags) &&
212 !test_and_clear_bit(AFS_VNODE_WRITELOCKED, &vnode->flags))
213 BUG();
214 if (test_and_set_bit(AFS_VNODE_UNLOCKING, &vnode->flags))
215 BUG();
216 vnode->unlock_key = key_get(key);
217 afs_lock_may_be_available(vnode);
218}
219
220/*
221 * request a lock on a file on the server
222 */
223static int afs_do_setlk(struct file *file, struct file_lock *fl)
224{
225 struct afs_vnode *vnode = AFS_FS_I(file->f_mapping->host);
226 afs_lock_type_t type;
227 struct key *key = file->private_data;
228 int ret;
229
230 _enter("{%x:%u},%u", vnode->fid.vid, vnode->fid.vnode, fl->fl_type);
231
232 /* only whole-file locks are supported */
233 if (fl->fl_start != 0 || fl->fl_end != OFFSET_MAX)
234 return -EINVAL;
235
236 ret = afs_init_lock_manager();
237 if (ret < 0)
238 return ret;
239
240 fl->fl_ops = &afs_lock_ops;
241 INIT_LIST_HEAD(&fl->fl_u.afs.link);
242 fl->fl_u.afs.state = AFS_LOCK_PENDING;
243
244 type = (fl->fl_type == F_RDLCK) ? AFS_LOCK_READ : AFS_LOCK_WRITE;
245
246 lock_kernel();
247
248 /* make sure we've got a callback on this file and that our view of the
249 * data version is up to date */
250 ret = afs_vnode_fetch_status(vnode, NULL, key);
251 if (ret < 0)
252 goto error;
253
254 if (vnode->status.lock_count != 0 && !(fl->fl_flags & FL_SLEEP)) {
255 ret = -EAGAIN;
256 goto error;
257 }
258
259 spin_lock(&vnode->lock);
260
261 if (list_empty(&vnode->pending_locks)) {
262 /* if there's no-one else with a lock on this vnode, then we
263 * need to ask the server for a lock */
264 if (list_empty(&vnode->granted_locks)) {
265 _debug("not locked");
266 ASSERTCMP(vnode->flags &
267 ((1 << AFS_VNODE_LOCKING) |
268 (1 << AFS_VNODE_READLOCKED) |
269 (1 << AFS_VNODE_WRITELOCKED)), ==, 0);
270 list_add_tail(&fl->fl_u.afs.link, &vnode->pending_locks);
271 set_bit(AFS_VNODE_LOCKING, &vnode->flags);
272 spin_unlock(&vnode->lock);
273
274 ret = afs_vnode_set_lock(vnode, key, type);
275 clear_bit(AFS_VNODE_LOCKING, &vnode->flags);
276 switch (ret) {
277 case 0:
278 goto acquired_server_lock;
279 case -EWOULDBLOCK:
280 spin_lock(&vnode->lock);
281 ASSERT(list_empty(&vnode->granted_locks));
282 ASSERTCMP(vnode->pending_locks.next, ==,
283 &fl->fl_u.afs.link);
284 goto wait;
285 default:
286 spin_lock(&vnode->lock);
287 list_del_init(&fl->fl_u.afs.link);
288 spin_unlock(&vnode->lock);
289 goto error;
290 }
291 }
292
293 /* if we've already got a readlock on the server and no waiting
294 * writelocks, then we might be able to instantly grant another
295 * readlock */
296 if (type == AFS_LOCK_READ &&
297 vnode->flags & (1 << AFS_VNODE_READLOCKED)) {
298 _debug("instant readlock");
299 ASSERTCMP(vnode->flags &
300 ((1 << AFS_VNODE_LOCKING) |
301 (1 << AFS_VNODE_WRITELOCKED)), ==, 0);
302 ASSERT(!list_empty(&vnode->granted_locks));
303 goto sharing_existing_lock;
304 }
305 }
306
307 /* otherwise, we need to wait for a local lock to become available */
308 _debug("wait local");
309 list_add_tail(&fl->fl_u.afs.link, &vnode->pending_locks);
310wait:
311 if (!(fl->fl_flags & FL_SLEEP)) {
312 _debug("noblock");
313 ret = -EAGAIN;
314 goto abort_attempt;
315 }
316 spin_unlock(&vnode->lock);
317
318 /* now we need to sleep and wait for the lock manager thread to get the
319 * lock from the server */
320 _debug("sleep");
321 ret = wait_event_interruptible(fl->fl_wait,
322 fl->fl_u.afs.state <= AFS_LOCK_GRANTED);
323 if (fl->fl_u.afs.state <= AFS_LOCK_GRANTED) {
324 ret = fl->fl_u.afs.state;
325 if (ret < 0)
326 goto error;
327 spin_lock(&vnode->lock);
328 goto given_lock;
329 }
330
331 /* we were interrupted, but someone may still be in the throes of
332 * giving us the lock */
333 _debug("intr");
334 ASSERTCMP(ret, ==, -ERESTARTSYS);
335
336 spin_lock(&vnode->lock);
337 if (fl->fl_u.afs.state <= AFS_LOCK_GRANTED) {
338 ret = fl->fl_u.afs.state;
339 if (ret < 0) {
340 spin_unlock(&vnode->lock);
341 goto error;
342 }
343 goto given_lock;
344 }
345
346abort_attempt:
347 /* we aren't going to get the lock, either because we're unwilling to
348 * wait, or because some signal happened */
349 _debug("abort");
350 if (list_empty(&vnode->granted_locks) &&
351 vnode->pending_locks.next == &fl->fl_u.afs.link) {
352 if (vnode->pending_locks.prev != &fl->fl_u.afs.link) {
353 /* kick the next pending lock into having a go */
354 list_del_init(&fl->fl_u.afs.link);
355 afs_lock_may_be_available(vnode);
356 }
357 } else {
358 list_del_init(&fl->fl_u.afs.link);
359 }
360 spin_unlock(&vnode->lock);
361 goto error;
362
363acquired_server_lock:
364 /* we've acquired a server lock, but it needs to be renewed after 5
365 * mins */
366 spin_lock(&vnode->lock);
367 afs_schedule_lock_extension(vnode);
368 if (type == AFS_LOCK_READ)
369 set_bit(AFS_VNODE_READLOCKED, &vnode->flags);
370 else
371 set_bit(AFS_VNODE_WRITELOCKED, &vnode->flags);
372sharing_existing_lock:
373 /* the lock has been granted as far as we're concerned... */
374 fl->fl_u.afs.state = AFS_LOCK_GRANTED;
375 list_move_tail(&fl->fl_u.afs.link, &vnode->granted_locks);
376given_lock:
377 /* ... but we do still need to get the VFS's blessing */
378 ASSERT(!(vnode->flags & (1 << AFS_VNODE_LOCKING)));
379 ASSERT((vnode->flags & ((1 << AFS_VNODE_READLOCKED) |
380 (1 << AFS_VNODE_WRITELOCKED))) != 0);
381 ret = posix_lock_file(file, fl, NULL);
382 if (ret < 0)
383 goto vfs_rejected_lock;
384 spin_unlock(&vnode->lock);
385
386 /* again, make sure we've got a callback on this file and, again, make
387 * sure that our view of the data version is up to date (we ignore
388 * errors incurred here and deal with the consequences elsewhere) */
389 afs_vnode_fetch_status(vnode, NULL, key);
390
391error:
392 unlock_kernel();
393 _leave(" = %d", ret);
394 return ret;
395
396vfs_rejected_lock:
397 /* the VFS rejected the lock we just obtained, so we have to discard
398 * what we just got */
399 _debug("vfs refused %d", ret);
400 list_del_init(&fl->fl_u.afs.link);
401 if (list_empty(&vnode->granted_locks))
402 afs_defer_unlock(vnode, key);
403 spin_unlock(&vnode->lock);
404 goto abort_attempt;
405}
406
407/*
408 * unlock on a file on the server
409 */
410static int afs_do_unlk(struct file *file, struct file_lock *fl)
411{
412 struct afs_vnode *vnode = AFS_FS_I(file->f_mapping->host);
413 struct key *key = file->private_data;
414 int ret;
415
416 _enter("{%x:%u},%u", vnode->fid.vid, vnode->fid.vnode, fl->fl_type);
417
418 /* only whole-file unlocks are supported */
419 if (fl->fl_start != 0 || fl->fl_end != OFFSET_MAX)
420 return -EINVAL;
421
422 fl->fl_ops = &afs_lock_ops;
423 INIT_LIST_HEAD(&fl->fl_u.afs.link);
424 fl->fl_u.afs.state = AFS_LOCK_PENDING;
425
426 spin_lock(&vnode->lock);
427 ret = posix_lock_file(file, fl, NULL);
428 if (ret < 0) {
429 spin_unlock(&vnode->lock);
430 _leave(" = %d [vfs]", ret);
431 return ret;
432 }
433
434 /* discard the server lock only if all granted locks are gone */
435 if (list_empty(&vnode->granted_locks))
436 afs_defer_unlock(vnode, key);
437 spin_unlock(&vnode->lock);
438 _leave(" = 0");
439 return 0;
440}
441
442/*
443 * return information about a lock we currently hold, if indeed we hold one
444 */
445static int afs_do_getlk(struct file *file, struct file_lock *fl)
446{
447 struct afs_vnode *vnode = AFS_FS_I(file->f_mapping->host);
448 struct key *key = file->private_data;
449 int ret, lock_count;
450
451 _enter("");
452
453 fl->fl_type = F_UNLCK;
454
455 mutex_lock(&vnode->vfs_inode.i_mutex);
456
457 /* check local lock records first */
458 ret = 0;
459 if (posix_test_lock(file, fl) == 0) {
460 /* no local locks; consult the server */
461 ret = afs_vnode_fetch_status(vnode, NULL, key);
462 if (ret < 0)
463 goto error;
464 lock_count = vnode->status.lock_count;
465 if (lock_count) {
466 if (lock_count > 0)
467 fl->fl_type = F_RDLCK;
468 else
469 fl->fl_type = F_WRLCK;
470 fl->fl_start = 0;
471 fl->fl_end = OFFSET_MAX;
472 }
473 }
474
475error:
476 mutex_unlock(&vnode->vfs_inode.i_mutex);
477 _leave(" = %d [%hd]", ret, fl->fl_type);
478 return ret;
479}
480
481/*
482 * manage POSIX locks on a file
483 */
484int afs_lock(struct file *file, int cmd, struct file_lock *fl)
485{
486 struct afs_vnode *vnode = AFS_FS_I(file->f_dentry->d_inode);
487
488 _enter("{%x:%u},%d,{t=%x,fl=%x,r=%Ld:%Ld}",
489 vnode->fid.vid, vnode->fid.vnode, cmd,
490 fl->fl_type, fl->fl_flags,
491 (long long) fl->fl_start, (long long) fl->fl_end);
492
493 /* AFS doesn't support mandatory locks */
494 if ((vnode->vfs_inode.i_mode & (S_ISGID | S_IXGRP)) == S_ISGID &&
495 fl->fl_type != F_UNLCK)
496 return -ENOLCK;
497
498 if (IS_GETLK(cmd))
499 return afs_do_getlk(file, fl);
500 if (fl->fl_type == F_UNLCK)
501 return afs_do_unlk(file, fl);
502 return afs_do_setlk(file, fl);
503}
504
505/*
506 * manage FLOCK locks on a file
507 */
508int afs_flock(struct file *file, int cmd, struct file_lock *fl)
509{
510 struct afs_vnode *vnode = AFS_FS_I(file->f_dentry->d_inode);
511
512 _enter("{%x:%u},%d,{t=%x,fl=%x}",
513 vnode->fid.vid, vnode->fid.vnode, cmd,
514 fl->fl_type, fl->fl_flags);
515
516 /*
517 * No BSD flocks over NFS allowed.
518 * Note: we could try to fake a POSIX lock request here by
519 * using ((u32) filp | 0x80000000) or some such as the pid.
520 * Not sure whether that would be unique, though, or whether
521 * that would break in other places.
522 */
523 if (!(fl->fl_flags & FL_FLOCK))
524 return -ENOLCK;
525
526 /* we're simulating flock() locks using posix locks on the server */
527 fl->fl_owner = (fl_owner_t) file;
528 fl->fl_start = 0;
529 fl->fl_end = OFFSET_MAX;
530
531 if (fl->fl_type == F_UNLCK)
532 return afs_do_unlk(file, fl);
533 return afs_do_setlk(file, fl);
534}
535
536/*
537 * the POSIX lock management core VFS code copies the lock record and adds the
538 * copy into its own list, so we need to add that copy to the vnode's lock
539 * queue in the same place as the original (which will be deleted shortly
540 * after)
541 */
542static void afs_fl_copy_lock(struct file_lock *new, struct file_lock *fl)
543{
544 _enter("");
545
546 list_add(&new->fl_u.afs.link, &fl->fl_u.afs.link);
547}
548
549/*
550 * need to remove this lock from the vnode queue when it's removed from the
551 * VFS's list
552 */
553static void afs_fl_release_private(struct file_lock *fl)
554{
555 _enter("");
556
557 list_del_init(&fl->fl_u.afs.link);
558}
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 5dff1308b6f0..023b95b0d9d7 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -67,7 +67,7 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
67 EXTRACT(status->group); 67 EXTRACT(status->group);
68 bp++; /* sync counter */ 68 bp++; /* sync counter */
69 data_version |= (u64) ntohl(*bp++) << 32; 69 data_version |= (u64) ntohl(*bp++) << 32;
70 bp++; /* lock count */ 70 EXTRACT(status->lock_count);
71 size |= (u64) ntohl(*bp++) << 32; 71 size |= (u64) ntohl(*bp++) << 32;
72 bp++; /* spare 4 */ 72 bp++; /* spare 4 */
73 *_bp = bp; 73 *_bp = bp;
@@ -1748,3 +1748,156 @@ int afs_fs_get_volume_status(struct afs_server *server,
1748 1748
1749 return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode); 1749 return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
1750} 1750}
1751
1752/*
1753 * deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock
1754 */
1755static int afs_deliver_fs_xxxx_lock(struct afs_call *call,
1756 struct sk_buff *skb, bool last)
1757{
1758 const __be32 *bp;
1759
1760 _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
1761
1762 afs_transfer_reply(call, skb);
1763 if (!last)
1764 return 0;
1765
1766 if (call->reply_size != call->reply_max)
1767 return -EBADMSG;
1768
1769 /* unmarshall the reply once we've received all of it */
1770 bp = call->buffer;
1771 /* xdr_decode_AFSVolSync(&bp, call->replyX); */
1772
1773 _leave(" = 0 [done]");
1774 return 0;
1775}
1776
1777/*
1778 * FS.SetLock operation type
1779 */
1780static const struct afs_call_type afs_RXFSSetLock = {
1781 .name = "FS.SetLock",
1782 .deliver = afs_deliver_fs_xxxx_lock,
1783 .abort_to_error = afs_abort_to_error,
1784 .destructor = afs_flat_call_destructor,
1785};
1786
1787/*
1788 * FS.ExtendLock operation type
1789 */
1790static const struct afs_call_type afs_RXFSExtendLock = {
1791 .name = "FS.ExtendLock",
1792 .deliver = afs_deliver_fs_xxxx_lock,
1793 .abort_to_error = afs_abort_to_error,
1794 .destructor = afs_flat_call_destructor,
1795};
1796
1797/*
1798 * FS.ReleaseLock operation type
1799 */
1800static const struct afs_call_type afs_RXFSReleaseLock = {
1801 .name = "FS.ReleaseLock",
1802 .deliver = afs_deliver_fs_xxxx_lock,
1803 .abort_to_error = afs_abort_to_error,
1804 .destructor = afs_flat_call_destructor,
1805};
1806
1807/*
1808 * get a lock on a file
1809 */
1810int afs_fs_set_lock(struct afs_server *server,
1811 struct key *key,
1812 struct afs_vnode *vnode,
1813 afs_lock_type_t type,
1814 const struct afs_wait_mode *wait_mode)
1815{
1816 struct afs_call *call;
1817 __be32 *bp;
1818
1819 _enter("");
1820
1821 call = afs_alloc_flat_call(&afs_RXFSSetLock, 5 * 4, 6 * 4);
1822 if (!call)
1823 return -ENOMEM;
1824
1825 call->key = key;
1826 call->reply = vnode;
1827 call->service_id = FS_SERVICE;
1828 call->port = htons(AFS_FS_PORT);
1829
1830 /* marshall the parameters */
1831 bp = call->request;
1832 *bp++ = htonl(FSSETLOCK);
1833 *bp++ = htonl(vnode->fid.vid);
1834 *bp++ = htonl(vnode->fid.vnode);
1835 *bp++ = htonl(vnode->fid.unique);
1836 *bp++ = htonl(type);
1837
1838 return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
1839}
1840
1841/*
1842 * extend a lock on a file
1843 */
1844int afs_fs_extend_lock(struct afs_server *server,
1845 struct key *key,
1846 struct afs_vnode *vnode,
1847 const struct afs_wait_mode *wait_mode)
1848{
1849 struct afs_call *call;
1850 __be32 *bp;
1851
1852 _enter("");
1853
1854 call = afs_alloc_flat_call(&afs_RXFSExtendLock, 4 * 4, 6 * 4);
1855 if (!call)
1856 return -ENOMEM;
1857
1858 call->key = key;
1859 call->reply = vnode;
1860 call->service_id = FS_SERVICE;
1861 call->port = htons(AFS_FS_PORT);
1862
1863 /* marshall the parameters */
1864 bp = call->request;
1865 *bp++ = htonl(FSEXTENDLOCK);
1866 *bp++ = htonl(vnode->fid.vid);
1867 *bp++ = htonl(vnode->fid.vnode);
1868 *bp++ = htonl(vnode->fid.unique);
1869
1870 return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
1871}
1872
1873/*
1874 * release a lock on a file
1875 */
1876int afs_fs_release_lock(struct afs_server *server,
1877 struct key *key,
1878 struct afs_vnode *vnode,
1879 const struct afs_wait_mode *wait_mode)
1880{
1881 struct afs_call *call;
1882 __be32 *bp;
1883
1884 _enter("");
1885
1886 call = afs_alloc_flat_call(&afs_RXFSReleaseLock, 4 * 4, 6 * 4);
1887 if (!call)
1888 return -ENOMEM;
1889
1890 call->key = key;
1891 call->reply = vnode;
1892 call->service_id = FS_SERVICE;
1893 call->port = htons(AFS_FS_PORT);
1894
1895 /* marshall the parameters */
1896 bp = call->request;
1897 *bp++ = htonl(FSRELEASELOCK);
1898 *bp++ = htonl(vnode->fid.vid);
1899 *bp++ = htonl(vnode->fid.vnode);
1900 *bp++ = htonl(vnode->fid.unique);
1901
1902 return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
1903}
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 2c55dd94a1de..6306438f331f 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -351,10 +351,18 @@ struct afs_vnode {
351#define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */ 351#define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */
352#define AFS_VNODE_DELETED 4 /* set if vnode deleted on server */ 352#define AFS_VNODE_DELETED 4 /* set if vnode deleted on server */
353#define AFS_VNODE_MOUNTPOINT 5 /* set if vnode is a mountpoint symlink */ 353#define AFS_VNODE_MOUNTPOINT 5 /* set if vnode is a mountpoint symlink */
354#define AFS_VNODE_LOCKING 6 /* set if waiting for lock on vnode */
355#define AFS_VNODE_READLOCKED 7 /* set if vnode is read-locked on the server */
356#define AFS_VNODE_WRITELOCKED 8 /* set if vnode is write-locked on the server */
357#define AFS_VNODE_UNLOCKING 9 /* set if vnode is being unlocked on the server */
354 358
355 long acl_order; /* ACL check count (callback break count) */ 359 long acl_order; /* ACL check count (callback break count) */
356 360
357 struct list_head writebacks; /* alterations in pagecache that need writing */ 361 struct list_head writebacks; /* alterations in pagecache that need writing */
362 struct list_head pending_locks; /* locks waiting to be granted */
363 struct list_head granted_locks; /* locks granted on this file */
364 struct delayed_work lock_work; /* work to be done in locking */
365 struct key *unlock_key; /* key to be used in unlocking */
358 366
359 /* outstanding callback notification on this file */ 367 /* outstanding callback notification on this file */
360 struct rb_node server_rb; /* link in server->fs_vnodes */ 368 struct rb_node server_rb; /* link in server->fs_vnodes */
@@ -474,6 +482,15 @@ extern int afs_open(struct inode *, struct file *);
474extern int afs_release(struct inode *, struct file *); 482extern int afs_release(struct inode *, struct file *);
475 483
476/* 484/*
485 * flock.c
486 */
487extern void __exit afs_kill_lock_manager(void);
488extern void afs_lock_work(struct work_struct *);
489extern void afs_lock_may_be_available(struct afs_vnode *);
490extern int afs_lock(struct file *, int, struct file_lock *);
491extern int afs_flock(struct file *, int, struct file_lock *);
492
493/*
477 * fsclient.c 494 * fsclient.c
478 */ 495 */
479extern int afs_fs_fetch_file_status(struct afs_server *, struct key *, 496extern int afs_fs_fetch_file_status(struct afs_server *, struct key *,
@@ -513,6 +530,15 @@ extern int afs_fs_get_volume_status(struct afs_server *, struct key *,
513 struct afs_vnode *, 530 struct afs_vnode *,
514 struct afs_volume_status *, 531 struct afs_volume_status *,
515 const struct afs_wait_mode *); 532 const struct afs_wait_mode *);
533extern int afs_fs_set_lock(struct afs_server *, struct key *,
534 struct afs_vnode *, afs_lock_type_t,
535 const struct afs_wait_mode *);
536extern int afs_fs_extend_lock(struct afs_server *, struct key *,
537 struct afs_vnode *,
538 const struct afs_wait_mode *);
539extern int afs_fs_release_lock(struct afs_server *, struct key *,
540 struct afs_vnode *,
541 const struct afs_wait_mode *);
516 542
517/* 543/*
518 * inode.c 544 * inode.c
@@ -681,6 +707,10 @@ extern int afs_vnode_store_data(struct afs_writeback *, pgoff_t, pgoff_t,
681extern int afs_vnode_setattr(struct afs_vnode *, struct key *, struct iattr *); 707extern int afs_vnode_setattr(struct afs_vnode *, struct key *, struct iattr *);
682extern int afs_vnode_get_volume_status(struct afs_vnode *, struct key *, 708extern int afs_vnode_get_volume_status(struct afs_vnode *, struct key *,
683 struct afs_volume_status *); 709 struct afs_volume_status *);
710extern int afs_vnode_set_lock(struct afs_vnode *, struct key *,
711 afs_lock_type_t);
712extern int afs_vnode_extend_lock(struct afs_vnode *, struct key *);
713extern int afs_vnode_release_lock(struct afs_vnode *, struct key *);
684 714
685/* 715/*
686 * volume.c 716 * volume.c
diff --git a/fs/afs/main.c b/fs/afs/main.c
index cd21195bbb24..0f60f6b35769 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -168,6 +168,7 @@ static void __exit afs_exit(void)
168 printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n"); 168 printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n");
169 169
170 afs_fs_exit(); 170 afs_fs_exit();
171 afs_kill_lock_manager();
171 afs_close_socket(); 172 afs_close_socket();
172 afs_purge_servers(); 173 afs_purge_servers();
173 afs_callback_update_kill(); 174 afs_callback_update_kill();
diff --git a/fs/afs/misc.c b/fs/afs/misc.c
index d1a889c40742..2d33a5f7d218 100644
--- a/fs/afs/misc.c
+++ b/fs/afs/misc.c
@@ -35,6 +35,7 @@ int afs_abort_to_error(u32 abort_code)
35 case VOVERQUOTA: return -EDQUOT; 35 case VOVERQUOTA: return -EDQUOT;
36 case VBUSY: return -EBUSY; 36 case VBUSY: return -EBUSY;
37 case VMOVED: return -ENXIO; 37 case VMOVED: return -ENXIO;
38 case 0x2f6df0a: return -EWOULDBLOCK;
38 case 0x2f6df0c: return -EACCES; 39 case 0x2f6df0c: return -EACCES;
39 case 0x2f6df0f: return -EBUSY; 40 case 0x2f6df0f: return -EBUSY;
40 case 0x2f6df10: return -EEXIST; 41 case 0x2f6df10: return -EEXIST;
diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 13df512aea9e..6edb56683b9a 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -201,23 +201,9 @@ static int afs_proc_cells_open(struct inode *inode, struct file *file)
201 */ 201 */
202static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos) 202static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos)
203{ 203{
204 struct list_head *_p;
205 loff_t pos = *_pos;
206
207 /* lock the list against modification */ 204 /* lock the list against modification */
208 down_read(&afs_proc_cells_sem); 205 down_read(&afs_proc_cells_sem);
209 206 return seq_list_start_head(&afs_proc_cells, *_pos);
210 /* allow for the header line */
211 if (!pos)
212 return (void *) 1;
213 pos--;
214
215 /* find the n'th element in the list */
216 list_for_each(_p, &afs_proc_cells)
217 if (!pos--)
218 break;
219
220 return _p != &afs_proc_cells ? _p : NULL;
221} 207}
222 208
223/* 209/*
@@ -225,14 +211,7 @@ static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos)
225 */ 211 */
226static void *afs_proc_cells_next(struct seq_file *p, void *v, loff_t *pos) 212static void *afs_proc_cells_next(struct seq_file *p, void *v, loff_t *pos)
227{ 213{
228 struct list_head *_p; 214 return seq_list_next(v, &afs_proc_cells, pos);
229
230 (*pos)++;
231
232 _p = v;
233 _p = v == (void *) 1 ? afs_proc_cells.next : _p->next;
234
235 return _p != &afs_proc_cells ? _p : NULL;
236} 215}
237 216
238/* 217/*
@@ -250,7 +229,7 @@ static int afs_proc_cells_show(struct seq_file *m, void *v)
250{ 229{
251 struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link); 230 struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link);
252 231
253 if (v == (void *) 1) { 232 if (v == &afs_proc_cells) {
254 /* display header on line 1 */ 233 /* display header on line 1 */
255 seq_puts(m, "USE NAME\n"); 234 seq_puts(m, "USE NAME\n");
256 return 0; 235 return 0;
@@ -503,26 +482,13 @@ static int afs_proc_cell_volumes_release(struct inode *inode, struct file *file)
503 */ 482 */
504static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos) 483static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos)
505{ 484{
506 struct list_head *_p;
507 struct afs_cell *cell = m->private; 485 struct afs_cell *cell = m->private;
508 loff_t pos = *_pos;
509 486
510 _enter("cell=%p pos=%Ld", cell, *_pos); 487 _enter("cell=%p pos=%Ld", cell, *_pos);
511 488
512 /* lock the list against modification */ 489 /* lock the list against modification */
513 down_read(&cell->vl_sem); 490 down_read(&cell->vl_sem);
514 491 return seq_list_start_head(&cell->vl_list, *_pos);
515 /* allow for the header line */
516 if (!pos)
517 return (void *) 1;
518 pos--;
519
520 /* find the n'th element in the list */
521 list_for_each(_p, &cell->vl_list)
522 if (!pos--)
523 break;
524
525 return _p != &cell->vl_list ? _p : NULL;
526} 492}
527 493
528/* 494/*
@@ -531,17 +497,10 @@ static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos)
531static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v, 497static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v,
532 loff_t *_pos) 498 loff_t *_pos)
533{ 499{
534 struct list_head *_p;
535 struct afs_cell *cell = p->private; 500 struct afs_cell *cell = p->private;
536 501
537 _enter("cell=%p pos=%Ld", cell, *_pos); 502 _enter("cell=%p pos=%Ld", cell, *_pos);
538 503 return seq_list_next(v, &cell->vl_list, _pos);
539 (*_pos)++;
540
541 _p = v;
542 _p = (v == (void *) 1) ? cell->vl_list.next : _p->next;
543
544 return (_p != &cell->vl_list) ? _p : NULL;
545} 504}
546 505
547/* 506/*
@@ -569,11 +528,12 @@ const char afs_vlocation_states[][4] = {
569 */ 528 */
570static int afs_proc_cell_volumes_show(struct seq_file *m, void *v) 529static int afs_proc_cell_volumes_show(struct seq_file *m, void *v)
571{ 530{
531 struct afs_cell *cell = m->private;
572 struct afs_vlocation *vlocation = 532 struct afs_vlocation *vlocation =
573 list_entry(v, struct afs_vlocation, link); 533 list_entry(v, struct afs_vlocation, link);
574 534
575 /* display header on line 1 */ 535 /* display header on line 1 */
576 if (v == (void *) 1) { 536 if (v == &cell->vl_list) {
577 seq_puts(m, "USE STT VLID[0] VLID[1] VLID[2] NAME\n"); 537 seq_puts(m, "USE STT VLID[0] VLID[1] VLID[2] NAME\n");
578 return 0; 538 return 0;
579 } 539 }
@@ -734,26 +694,13 @@ static int afs_proc_cell_servers_release(struct inode *inode,
734static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos) 694static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos)
735 __acquires(m->private->servers_lock) 695 __acquires(m->private->servers_lock)
736{ 696{
737 struct list_head *_p;
738 struct afs_cell *cell = m->private; 697 struct afs_cell *cell = m->private;
739 loff_t pos = *_pos;
740 698
741 _enter("cell=%p pos=%Ld", cell, *_pos); 699 _enter("cell=%p pos=%Ld", cell, *_pos);
742 700
743 /* lock the list against modification */ 701 /* lock the list against modification */
744 read_lock(&cell->servers_lock); 702 read_lock(&cell->servers_lock);
745 703 return seq_list_start_head(&cell->servers, *_pos);
746 /* allow for the header line */
747 if (!pos)
748 return (void *) 1;
749 pos--;
750
751 /* find the n'th element in the list */
752 list_for_each(_p, &cell->servers)
753 if (!pos--)
754 break;
755
756 return _p != &cell->servers ? _p : NULL;
757} 704}
758 705
759/* 706/*
@@ -762,17 +709,10 @@ static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos)
762static void *afs_proc_cell_servers_next(struct seq_file *p, void *v, 709static void *afs_proc_cell_servers_next(struct seq_file *p, void *v,
763 loff_t *_pos) 710 loff_t *_pos)
764{ 711{
765 struct list_head *_p;
766 struct afs_cell *cell = p->private; 712 struct afs_cell *cell = p->private;
767 713
768 _enter("cell=%p pos=%Ld", cell, *_pos); 714 _enter("cell=%p pos=%Ld", cell, *_pos);
769 715 return seq_list_next(v, &cell->servers, _pos);
770 (*_pos)++;
771
772 _p = v;
773 _p = v == (void *) 1 ? cell->servers.next : _p->next;
774
775 return _p != &cell->servers ? _p : NULL;
776} 716}
777 717
778/* 718/*
@@ -791,11 +731,12 @@ static void afs_proc_cell_servers_stop(struct seq_file *p, void *v)
791 */ 731 */
792static int afs_proc_cell_servers_show(struct seq_file *m, void *v) 732static int afs_proc_cell_servers_show(struct seq_file *m, void *v)
793{ 733{
734 struct afs_cell *cell = m->private;
794 struct afs_server *server = list_entry(v, struct afs_server, link); 735 struct afs_server *server = list_entry(v, struct afs_server, link);
795 char ipaddr[20]; 736 char ipaddr[20];
796 737
797 /* display header on line 1 */ 738 /* display header on line 1 */
798 if (v == (void *) 1) { 739 if (v == &cell->servers) {
799 seq_puts(m, "USE ADDR STATE\n"); 740 seq_puts(m, "USE ADDR STATE\n");
800 return 0; 741 return 0;
801 } 742 }
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 2e8496ba1205..993cdf1cce3a 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -460,6 +460,9 @@ static void afs_i_init_once(void *_vnode, struct kmem_cache *cachep,
460 spin_lock_init(&vnode->writeback_lock); 460 spin_lock_init(&vnode->writeback_lock);
461 spin_lock_init(&vnode->lock); 461 spin_lock_init(&vnode->lock);
462 INIT_LIST_HEAD(&vnode->writebacks); 462 INIT_LIST_HEAD(&vnode->writebacks);
463 INIT_LIST_HEAD(&vnode->pending_locks);
464 INIT_LIST_HEAD(&vnode->granted_locks);
465 INIT_DELAYED_WORK(&vnode->lock_work, afs_lock_work);
463 INIT_WORK(&vnode->cb_broken_work, afs_broken_callback_work); 466 INIT_WORK(&vnode->cb_broken_work, afs_broken_callback_work);
464} 467}
465 468
diff --git a/fs/afs/vnode.c b/fs/afs/vnode.c
index 232c55dc245d..2f05c4fc2a70 100644
--- a/fs/afs/vnode.c
+++ b/fs/afs/vnode.c
@@ -561,7 +561,7 @@ no_server:
561/* 561/*
562 * create a hard link 562 * create a hard link
563 */ 563 */
564extern int afs_vnode_link(struct afs_vnode *dvnode, struct afs_vnode *vnode, 564int afs_vnode_link(struct afs_vnode *dvnode, struct afs_vnode *vnode,
565 struct key *key, const char *name) 565 struct key *key, const char *name)
566{ 566{
567 struct afs_server *server; 567 struct afs_server *server;
@@ -887,11 +887,6 @@ int afs_vnode_get_volume_status(struct afs_vnode *vnode, struct key *key,
887 vnode->fid.unique, 887 vnode->fid.unique,
888 key_serial(key)); 888 key_serial(key));
889 889
890 /* this op will fetch the status */
891 spin_lock(&vnode->lock);
892 vnode->update_cnt++;
893 spin_unlock(&vnode->lock);
894
895 do { 890 do {
896 /* pick a server to query */ 891 /* pick a server to query */
897 server = afs_volume_pick_fileserver(vnode); 892 server = afs_volume_pick_fileserver(vnode);
@@ -905,20 +900,127 @@ int afs_vnode_get_volume_status(struct afs_vnode *vnode, struct key *key,
905 } while (!afs_volume_release_fileserver(vnode, server, ret)); 900 } while (!afs_volume_release_fileserver(vnode, server, ret));
906 901
907 /* adjust the flags */ 902 /* adjust the flags */
908 if (ret == 0) { 903 if (ret == 0)
909 afs_vnode_finalise_status_update(vnode, server); 904 afs_put_server(server);
905
906 _leave(" = %d", ret);
907 return ret;
908
909no_server:
910 return PTR_ERR(server);
911}
912
913/*
914 * get a lock on a file
915 */
916int afs_vnode_set_lock(struct afs_vnode *vnode, struct key *key,
917 afs_lock_type_t type)
918{
919 struct afs_server *server;
920 int ret;
921
922 _enter("%s{%x:%u.%u},%x,%u",
923 vnode->volume->vlocation->vldb.name,
924 vnode->fid.vid,
925 vnode->fid.vnode,
926 vnode->fid.unique,
927 key_serial(key), type);
928
929 do {
930 /* pick a server to query */
931 server = afs_volume_pick_fileserver(vnode);
932 if (IS_ERR(server))
933 goto no_server;
934
935 _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
936
937 ret = afs_fs_set_lock(server, key, vnode, type, &afs_sync_call);
938
939 } while (!afs_volume_release_fileserver(vnode, server, ret));
940
941 /* adjust the flags */
942 if (ret == 0)
943 afs_put_server(server);
944
945 _leave(" = %d", ret);
946 return ret;
947
948no_server:
949 return PTR_ERR(server);
950}
951
952/*
953 * extend a lock on a file
954 */
955int afs_vnode_extend_lock(struct afs_vnode *vnode, struct key *key)
956{
957 struct afs_server *server;
958 int ret;
959
960 _enter("%s{%x:%u.%u},%x",
961 vnode->volume->vlocation->vldb.name,
962 vnode->fid.vid,
963 vnode->fid.vnode,
964 vnode->fid.unique,
965 key_serial(key));
966
967 do {
968 /* pick a server to query */
969 server = afs_volume_pick_fileserver(vnode);
970 if (IS_ERR(server))
971 goto no_server;
972
973 _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
974
975 ret = afs_fs_extend_lock(server, key, vnode, &afs_sync_call);
976
977 } while (!afs_volume_release_fileserver(vnode, server, ret));
978
979 /* adjust the flags */
980 if (ret == 0)
981 afs_put_server(server);
982
983 _leave(" = %d", ret);
984 return ret;
985
986no_server:
987 return PTR_ERR(server);
988}
989
990/*
991 * release a lock on a file
992 */
993int afs_vnode_release_lock(struct afs_vnode *vnode, struct key *key)
994{
995 struct afs_server *server;
996 int ret;
997
998 _enter("%s{%x:%u.%u},%x",
999 vnode->volume->vlocation->vldb.name,
1000 vnode->fid.vid,
1001 vnode->fid.vnode,
1002 vnode->fid.unique,
1003 key_serial(key));
1004
1005 do {
1006 /* pick a server to query */
1007 server = afs_volume_pick_fileserver(vnode);
1008 if (IS_ERR(server))
1009 goto no_server;
1010
1011 _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
1012
1013 ret = afs_fs_release_lock(server, key, vnode, &afs_sync_call);
1014
1015 } while (!afs_volume_release_fileserver(vnode, server, ret));
1016
1017 /* adjust the flags */
1018 if (ret == 0)
910 afs_put_server(server); 1019 afs_put_server(server);
911 } else {
912 afs_vnode_status_update_failed(vnode, ret);
913 }
914 1020
915 _leave(" = %d", ret); 1021 _leave(" = %d", ret);
916 return ret; 1022 return ret;
917 1023
918no_server: 1024no_server:
919 spin_lock(&vnode->lock);
920 vnode->update_cnt--;
921 ASSERTCMP(vnode->update_cnt, >=, 0);
922 spin_unlock(&vnode->lock);
923 return PTR_ERR(server); 1025 return PTR_ERR(server);
924} 1026}
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 40fe3a3222e4..a260198306c2 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -53,7 +53,7 @@ static struct dentry_operations anon_inodefs_dentry_operations = {
53}; 53};
54 54
55/** 55/**
56 * anon_inode_getfd - creates a new file instance by hooking it up to and 56 * anon_inode_getfd - creates a new file instance by hooking it up to an
57 * anonymous inode, and a dentry that describe the "class" 57 * anonymous inode, and a dentry that describe the "class"
58 * of the file 58 * of the file
59 * 59 *
@@ -66,7 +66,7 @@ static struct dentry_operations anon_inodefs_dentry_operations = {
66 * 66 *
67 * Creates a new file by hooking it on a single inode. This is useful for files 67 * Creates a new file by hooking it on a single inode. This is useful for files
68 * that do not need to have a full-fledged inode in order to operate correctly. 68 * that do not need to have a full-fledged inode in order to operate correctly.
69 * All the files created with anon_inode_getfd() will share a single inode, by 69 * All the files created with anon_inode_getfd() will share a single inode,
70 * hence saving memory and avoiding code duplication for the file/inode/dentry 70 * hence saving memory and avoiding code duplication for the file/inode/dentry
71 * setup. 71 * setup.
72 */ 72 */
@@ -141,9 +141,9 @@ err_put_filp:
141} 141}
142 142
143/* 143/*
144 * A single inode exist for all anon_inode files. Contrary to pipes, 144 * A single inode exists for all anon_inode files. Contrary to pipes,
145 * anon_inode inodes has no per-instance data associated, so we can avoid 145 * anon_inode inodes have no associated per-instance data, so we need
146 * the allocation of multiple of them. 146 * only allocate one of them.
147 */ 147 */
148static struct inode *anon_inode_mkinode(void) 148static struct inode *anon_inode_mkinode(void)
149{ 149{
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 08e4414b8374..a27e42bf3400 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -45,7 +45,7 @@
45 45
46static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs); 46static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs);
47static int load_elf_library(struct file *); 47static int load_elf_library(struct file *);
48static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int); 48static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long);
49 49
50/* 50/*
51 * If we don't support core dumping, then supply a NULL so we 51 * If we don't support core dumping, then supply a NULL so we
@@ -80,7 +80,7 @@ static struct linux_binfmt elf_format = {
80 .hasvdso = 1 80 .hasvdso = 1
81}; 81};
82 82
83#define BAD_ADDR(x) ((unsigned long)(x) >= TASK_SIZE) 83#define BAD_ADDR(x) IS_ERR_VALUE(x)
84 84
85static int set_brk(unsigned long start, unsigned long end) 85static int set_brk(unsigned long start, unsigned long end)
86{ 86{
@@ -285,33 +285,70 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
285#ifndef elf_map 285#ifndef elf_map
286 286
287static unsigned long elf_map(struct file *filep, unsigned long addr, 287static unsigned long elf_map(struct file *filep, unsigned long addr,
288 struct elf_phdr *eppnt, int prot, int type) 288 struct elf_phdr *eppnt, int prot, int type,
289 unsigned long total_size)
289{ 290{
290 unsigned long map_addr; 291 unsigned long map_addr;
291 unsigned long pageoffset = ELF_PAGEOFFSET(eppnt->p_vaddr); 292 unsigned long size = eppnt->p_filesz + ELF_PAGEOFFSET(eppnt->p_vaddr);
293 unsigned long off = eppnt->p_offset - ELF_PAGEOFFSET(eppnt->p_vaddr);
294 addr = ELF_PAGESTART(addr);
295 size = ELF_PAGEALIGN(size);
292 296
293 down_write(&current->mm->mmap_sem);
294 /* mmap() will return -EINVAL if given a zero size, but a 297 /* mmap() will return -EINVAL if given a zero size, but a
295 * segment with zero filesize is perfectly valid */ 298 * segment with zero filesize is perfectly valid */
296 if (eppnt->p_filesz + pageoffset) 299 if (!size)
297 map_addr = do_mmap(filep, ELF_PAGESTART(addr), 300 return addr;
298 eppnt->p_filesz + pageoffset, prot, type, 301
299 eppnt->p_offset - pageoffset); 302 down_write(&current->mm->mmap_sem);
300 else 303 /*
301 map_addr = ELF_PAGESTART(addr); 304 * total_size is the size of the ELF (interpreter) image.
305 * The _first_ mmap needs to know the full size, otherwise
306 * randomization might put this image into an overlapping
307 * position with the ELF binary image. (since size < total_size)
308 * So we first map the 'big' image - and unmap the remainder at
309 * the end. (which unmap is needed for ELF images with holes.)
310 */
311 if (total_size) {
312 total_size = ELF_PAGEALIGN(total_size);
313 map_addr = do_mmap(filep, addr, total_size, prot, type, off);
314 if (!BAD_ADDR(map_addr))
315 do_munmap(current->mm, map_addr+size, total_size-size);
316 } else
317 map_addr = do_mmap(filep, addr, size, prot, type, off);
318
302 up_write(&current->mm->mmap_sem); 319 up_write(&current->mm->mmap_sem);
303 return(map_addr); 320 return(map_addr);
304} 321}
305 322
306#endif /* !elf_map */ 323#endif /* !elf_map */
307 324
325static unsigned long total_mapping_size(struct elf_phdr *cmds, int nr)
326{
327 int i, first_idx = -1, last_idx = -1;
328
329 for (i = 0; i < nr; i++) {
330 if (cmds[i].p_type == PT_LOAD) {
331 last_idx = i;
332 if (first_idx == -1)
333 first_idx = i;
334 }
335 }
336 if (first_idx == -1)
337 return 0;
338
339 return cmds[last_idx].p_vaddr + cmds[last_idx].p_memsz -
340 ELF_PAGESTART(cmds[first_idx].p_vaddr);
341}
342
343
308/* This is much more generalized than the library routine read function, 344/* This is much more generalized than the library routine read function,
309 so we keep this separate. Technically the library read function 345 so we keep this separate. Technically the library read function
310 is only provided so that we can read a.out libraries that have 346 is only provided so that we can read a.out libraries that have
311 an ELF header */ 347 an ELF header */
312 348
313static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, 349static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
314 struct file *interpreter, unsigned long *interp_load_addr) 350 struct file *interpreter, unsigned long *interp_map_addr,
351 unsigned long no_base)
315{ 352{
316 struct elf_phdr *elf_phdata; 353 struct elf_phdr *elf_phdata;
317 struct elf_phdr *eppnt; 354 struct elf_phdr *eppnt;
@@ -319,6 +356,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
319 int load_addr_set = 0; 356 int load_addr_set = 0;
320 unsigned long last_bss = 0, elf_bss = 0; 357 unsigned long last_bss = 0, elf_bss = 0;
321 unsigned long error = ~0UL; 358 unsigned long error = ~0UL;
359 unsigned long total_size;
322 int retval, i, size; 360 int retval, i, size;
323 361
324 /* First of all, some simple consistency checks */ 362 /* First of all, some simple consistency checks */
@@ -357,6 +395,12 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
357 goto out_close; 395 goto out_close;
358 } 396 }
359 397
398 total_size = total_mapping_size(elf_phdata, interp_elf_ex->e_phnum);
399 if (!total_size) {
400 error = -EINVAL;
401 goto out_close;
402 }
403
360 eppnt = elf_phdata; 404 eppnt = elf_phdata;
361 for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) { 405 for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
362 if (eppnt->p_type == PT_LOAD) { 406 if (eppnt->p_type == PT_LOAD) {
@@ -374,9 +418,14 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
374 vaddr = eppnt->p_vaddr; 418 vaddr = eppnt->p_vaddr;
375 if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) 419 if (interp_elf_ex->e_type == ET_EXEC || load_addr_set)
376 elf_type |= MAP_FIXED; 420 elf_type |= MAP_FIXED;
421 else if (no_base && interp_elf_ex->e_type == ET_DYN)
422 load_addr = -vaddr;
377 423
378 map_addr = elf_map(interpreter, load_addr + vaddr, 424 map_addr = elf_map(interpreter, load_addr + vaddr,
379 eppnt, elf_prot, elf_type); 425 eppnt, elf_prot, elf_type, total_size);
426 total_size = 0;
427 if (!*interp_map_addr)
428 *interp_map_addr = map_addr;
380 error = map_addr; 429 error = map_addr;
381 if (BAD_ADDR(map_addr)) 430 if (BAD_ADDR(map_addr))
382 goto out_close; 431 goto out_close;
@@ -442,8 +491,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
442 goto out_close; 491 goto out_close;
443 } 492 }
444 493
445 *interp_load_addr = load_addr; 494 error = load_addr;
446 error = ((unsigned long)interp_elf_ex->e_entry) + load_addr;
447 495
448out_close: 496out_close:
449 kfree(elf_phdata); 497 kfree(elf_phdata);
@@ -540,7 +588,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
540 int elf_exec_fileno; 588 int elf_exec_fileno;
541 int retval, i; 589 int retval, i;
542 unsigned int size; 590 unsigned int size;
543 unsigned long elf_entry, interp_load_addr = 0; 591 unsigned long elf_entry;
592 unsigned long interp_load_addr = 0;
544 unsigned long start_code, end_code, start_data, end_data; 593 unsigned long start_code, end_code, start_data, end_data;
545 unsigned long reloc_func_desc = 0; 594 unsigned long reloc_func_desc = 0;
546 char passed_fileno[6]; 595 char passed_fileno[6];
@@ -808,9 +857,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
808 current->mm->start_stack = bprm->p; 857 current->mm->start_stack = bprm->p;
809 858
810 /* Now we do a little grungy work by mmaping the ELF image into 859 /* Now we do a little grungy work by mmaping the ELF image into
811 the correct location in memory. At this point, we assume that 860 the correct location in memory. */
812 the image should be loaded at fixed address, not at a variable
813 address. */
814 for(i = 0, elf_ppnt = elf_phdata; 861 for(i = 0, elf_ppnt = elf_phdata;
815 i < loc->elf_ex.e_phnum; i++, elf_ppnt++) { 862 i < loc->elf_ex.e_phnum; i++, elf_ppnt++) {
816 int elf_prot = 0, elf_flags; 863 int elf_prot = 0, elf_flags;
@@ -864,11 +911,15 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
864 * default mmap base, as well as whatever program they 911 * default mmap base, as well as whatever program they
865 * might try to exec. This is because the brk will 912 * might try to exec. This is because the brk will
866 * follow the loader, and is not movable. */ 913 * follow the loader, and is not movable. */
914#ifdef CONFIG_X86
915 load_bias = 0;
916#else
867 load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr); 917 load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
918#endif
868 } 919 }
869 920
870 error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt, 921 error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
871 elf_prot, elf_flags); 922 elf_prot, elf_flags,0);
872 if (BAD_ADDR(error)) { 923 if (BAD_ADDR(error)) {
873 send_sig(SIGKILL, current, 0); 924 send_sig(SIGKILL, current, 0);
874 retval = IS_ERR((void *)error) ? 925 retval = IS_ERR((void *)error) ?
@@ -944,13 +995,25 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
944 } 995 }
945 996
946 if (elf_interpreter) { 997 if (elf_interpreter) {
947 if (interpreter_type == INTERPRETER_AOUT) 998 if (interpreter_type == INTERPRETER_AOUT) {
948 elf_entry = load_aout_interp(&loc->interp_ex, 999 elf_entry = load_aout_interp(&loc->interp_ex,
949 interpreter); 1000 interpreter);
950 else 1001 } else {
1002 unsigned long uninitialized_var(interp_map_addr);
1003
951 elf_entry = load_elf_interp(&loc->interp_elf_ex, 1004 elf_entry = load_elf_interp(&loc->interp_elf_ex,
952 interpreter, 1005 interpreter,
953 &interp_load_addr); 1006 &interp_map_addr,
1007 load_bias);
1008 if (!BAD_ADDR(elf_entry)) {
1009 /*
1010 * load_elf_interp() returns relocation
1011 * adjustment
1012 */
1013 interp_load_addr = elf_entry;
1014 elf_entry += loc->interp_elf_ex.e_entry;
1015 }
1016 }
954 if (BAD_ADDR(elf_entry)) { 1017 if (BAD_ADDR(elf_entry)) {
955 force_sig(SIGSEGV, current); 1018 force_sig(SIGSEGV, current);
956 retval = IS_ERR((void *)elf_entry) ? 1019 retval = IS_ERR((void *)elf_entry) ?
diff --git a/fs/block_dev.c b/fs/block_dev.c
index b3e9bfa748cf..3635315e3b99 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -588,12 +588,10 @@ EXPORT_SYMBOL(bdget);
588 588
589long nr_blockdev_pages(void) 589long nr_blockdev_pages(void)
590{ 590{
591 struct list_head *p; 591 struct block_device *bdev;
592 long ret = 0; 592 long ret = 0;
593 spin_lock(&bdev_lock); 593 spin_lock(&bdev_lock);
594 list_for_each(p, &all_bdevs) { 594 list_for_each_entry(bdev, &all_bdevs, bd_list) {
595 struct block_device *bdev;
596 bdev = list_entry(p, struct block_device, bd_list);
597 ret += bdev->bd_inode->i_mapping->nrpages; 595 ret += bdev->bd_inode->i_mapping->nrpages;
598 } 596 }
599 spin_unlock(&bdev_lock); 597 spin_unlock(&bdev_lock);
@@ -874,7 +872,7 @@ static struct bd_holder *find_bd_holder(struct block_device *bdev,
874 */ 872 */
875static int add_bd_holder(struct block_device *bdev, struct bd_holder *bo) 873static int add_bd_holder(struct block_device *bdev, struct bd_holder *bo)
876{ 874{
877 int ret; 875 int err;
878 876
879 if (!bo) 877 if (!bo)
880 return -EINVAL; 878 return -EINVAL;
@@ -882,15 +880,18 @@ static int add_bd_holder(struct block_device *bdev, struct bd_holder *bo)
882 if (!bd_holder_grab_dirs(bdev, bo)) 880 if (!bd_holder_grab_dirs(bdev, bo))
883 return -EBUSY; 881 return -EBUSY;
884 882
885 ret = add_symlink(bo->sdir, bo->sdev); 883 err = add_symlink(bo->sdir, bo->sdev);
886 if (ret == 0) { 884 if (err)
887 ret = add_symlink(bo->hdir, bo->hdev); 885 return err;
888 if (ret) 886
889 del_symlink(bo->sdir, bo->sdev); 887 err = add_symlink(bo->hdir, bo->hdev);
888 if (err) {
889 del_symlink(bo->sdir, bo->sdev);
890 return err;
890 } 891 }
891 if (ret == 0) 892
892 list_add_tail(&bo->list, &bdev->bd_holder_list); 893 list_add_tail(&bo->list, &bdev->bd_holder_list);
893 return ret; 894 return 0;
894} 895}
895 896
896/** 897/**
@@ -948,7 +949,7 @@ static struct bd_holder *del_bd_holder(struct block_device *bdev,
948static int bd_claim_by_kobject(struct block_device *bdev, void *holder, 949static int bd_claim_by_kobject(struct block_device *bdev, void *holder,
949 struct kobject *kobj) 950 struct kobject *kobj)
950{ 951{
951 int res; 952 int err;
952 struct bd_holder *bo, *found; 953 struct bd_holder *bo, *found;
953 954
954 if (!kobj) 955 if (!kobj)
@@ -959,21 +960,24 @@ static int bd_claim_by_kobject(struct block_device *bdev, void *holder,
959 return -ENOMEM; 960 return -ENOMEM;
960 961
961 mutex_lock(&bdev->bd_mutex); 962 mutex_lock(&bdev->bd_mutex);
962 res = bd_claim(bdev, holder);
963 if (res == 0) {
964 found = find_bd_holder(bdev, bo);
965 if (found == NULL) {
966 res = add_bd_holder(bdev, bo);
967 if (res)
968 bd_release(bdev);
969 }
970 }
971 963
972 if (res || found) 964 err = bd_claim(bdev, holder);
973 free_bd_holder(bo); 965 if (err)
974 mutex_unlock(&bdev->bd_mutex); 966 goto fail;
975 967
976 return res; 968 found = find_bd_holder(bdev, bo);
969 if (found)
970 goto fail;
971
972 err = add_bd_holder(bdev, bo);
973 if (err)
974 bd_release(bdev);
975 else
976 bo = NULL;
977fail:
978 mutex_unlock(&bdev->bd_mutex);
979 free_bd_holder(bo);
980 return err;
977} 981}
978 982
979/** 983/**
@@ -987,15 +991,12 @@ static int bd_claim_by_kobject(struct block_device *bdev, void *holder,
987static void bd_release_from_kobject(struct block_device *bdev, 991static void bd_release_from_kobject(struct block_device *bdev,
988 struct kobject *kobj) 992 struct kobject *kobj)
989{ 993{
990 struct bd_holder *bo;
991
992 if (!kobj) 994 if (!kobj)
993 return; 995 return;
994 996
995 mutex_lock(&bdev->bd_mutex); 997 mutex_lock(&bdev->bd_mutex);
996 bd_release(bdev); 998 bd_release(bdev);
997 if ((bo = del_bd_holder(bdev, kobj))) 999 free_bd_holder(del_bd_holder(bdev, kobj));
998 free_bd_holder(bo);
999 mutex_unlock(&bdev->bd_mutex); 1000 mutex_unlock(&bdev->bd_mutex);
1000} 1001}
1001 1002
diff --git a/fs/buffer.c b/fs/buffer.c
index aa68206bd517..424165b569f8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1026,11 +1026,6 @@ failed:
1026/* 1026/*
1027 * Create buffers for the specified block device block's page. If 1027 * Create buffers for the specified block device block's page. If
1028 * that page was dirty, the buffers are set dirty also. 1028 * that page was dirty, the buffers are set dirty also.
1029 *
1030 * Except that's a bug. Attaching dirty buffers to a dirty
1031 * blockdev's page can result in filesystem corruption, because
1032 * some of those buffers may be aliases of filesystem data.
1033 * grow_dev_page() will go BUG() if this happens.
1034 */ 1029 */
1035static int 1030static int
1036grow_buffers(struct block_device *bdev, sector_t block, int size) 1031grow_buffers(struct block_device *bdev, sector_t block, int size)
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6b44cdc96fac..e440a7b95d02 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -63,6 +63,7 @@
63#include <linux/wireless.h> 63#include <linux/wireless.h>
64#include <linux/atalk.h> 64#include <linux/atalk.h>
65#include <linux/blktrace_api.h> 65#include <linux/blktrace_api.h>
66#include <linux/loop.h>
66 67
67#include <net/bluetooth/bluetooth.h> 68#include <net/bluetooth/bluetooth.h>
68#include <net/bluetooth/hci.h> 69#include <net/bluetooth/hci.h>
@@ -3489,6 +3490,9 @@ HANDLE_IOCTL(LPSETTIMEOUT, lp_timeout_trans)
3489 3490
3490IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32) 3491IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
3491IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32) 3492IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
3493
3494/* loop */
3495IGNORE_IOCTL(LOOP_CLR_FD)
3492}; 3496};
3493 3497
3494#define IOCTL_HASHSIZE 256 3498#define IOCTL_HASHSIZE 256
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 03ea7696fe39..59375efcf39d 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -20,7 +20,7 @@ static void drop_pagecache_sb(struct super_block *sb)
20 list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { 20 list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
21 if (inode->i_state & (I_FREEING|I_WILL_FREE)) 21 if (inode->i_state & (I_FREEING|I_WILL_FREE))
22 continue; 22 continue;
23 invalidate_mapping_pages(inode->i_mapping, 0, -1); 23 __invalidate_mapping_pages(inode->i_mapping, 0, -1, true);
24 } 24 }
25 spin_unlock(&inode_lock); 25 spin_unlock(&inode_lock);
26} 26}
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 04afeecaaef3..ab7961260c49 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -24,9 +24,9 @@
24#include "acl.h" 24#include "acl.h"
25 25
26/* 26/*
27 * Called when an inode is released. Note that this is different 27 * Called when filp is released. This happens when all file descriptors
28 * from ext2_open_file: open gets called at every open, but release 28 * for a single struct file are closed. Note that different open() calls
29 * gets called only when /all/ the files are closed. 29 * for the same file yield different struct file structures.
30 */ 30 */
31static int ext2_release_file (struct inode * inode, struct file * filp) 31static int ext2_release_file (struct inode * inode, struct file * filp)
32{ 32{
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 5de5061eb331..b2efd9083b9b 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1099,15 +1099,18 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
1099 struct super_block *sb = dentry->d_sb; 1099 struct super_block *sb = dentry->d_sb;
1100 struct ext2_sb_info *sbi = EXT2_SB(sb); 1100 struct ext2_sb_info *sbi = EXT2_SB(sb);
1101 struct ext2_super_block *es = sbi->s_es; 1101 struct ext2_super_block *es = sbi->s_es;
1102 unsigned long overhead;
1103 int i;
1104 u64 fsid; 1102 u64 fsid;
1105 1103
1106 if (test_opt (sb, MINIX_DF)) 1104 if (test_opt (sb, MINIX_DF))
1107 overhead = 0; 1105 sbi->s_overhead_last = 0;
1108 else { 1106 else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {
1107 unsigned long i, overhead = 0;
1108 smp_rmb();
1109
1109 /* 1110 /*
1110 * Compute the overhead (FS structures) 1111 * Compute the overhead (FS structures). This is constant
1112 * for a given filesystem unless the number of block groups
1113 * changes so we cache the previous value until it does.
1111 */ 1114 */
1112 1115
1113 /* 1116 /*
@@ -1131,17 +1134,22 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
1131 */ 1134 */
1132 overhead += (sbi->s_groups_count * 1135 overhead += (sbi->s_groups_count *
1133 (2 + sbi->s_itb_per_group)); 1136 (2 + sbi->s_itb_per_group));
1137 sbi->s_overhead_last = overhead;
1138 smp_wmb();
1139 sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);
1134 } 1140 }
1135 1141
1136 buf->f_type = EXT2_SUPER_MAGIC; 1142 buf->f_type = EXT2_SUPER_MAGIC;
1137 buf->f_bsize = sb->s_blocksize; 1143 buf->f_bsize = sb->s_blocksize;
1138 buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead; 1144 buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;
1139 buf->f_bfree = ext2_count_free_blocks(sb); 1145 buf->f_bfree = ext2_count_free_blocks(sb);
1146 es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
1140 buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count); 1147 buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
1141 if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count)) 1148 if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
1142 buf->f_bavail = 0; 1149 buf->f_bavail = 0;
1143 buf->f_files = le32_to_cpu(es->s_inodes_count); 1150 buf->f_files = le32_to_cpu(es->s_inodes_count);
1144 buf->f_ffree = ext2_count_free_inodes(sb); 1151 buf->f_ffree = ext2_count_free_inodes(sb);
1152 es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
1145 buf->f_namelen = EXT2_NAME_LEN; 1153 buf->f_namelen = EXT2_NAME_LEN;
1146 fsid = le64_to_cpup((void *)es->s_uuid) ^ 1154 fsid = le64_to_cpup((void *)es->s_uuid) ^
1147 le64_to_cpup((void *)es->s_uuid + sizeof(u64)); 1155 le64_to_cpup((void *)es->s_uuid + sizeof(u64));
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 2a85ddee4740..de4e3161e479 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -3195,7 +3195,7 @@ int ext3_change_inode_journal_flag(struct inode *inode, int val)
3195 */ 3195 */
3196 3196
3197 journal = EXT3_JOURNAL(inode); 3197 journal = EXT3_JOURNAL(inode);
3198 if (is_journal_aborted(journal) || IS_RDONLY(inode)) 3198 if (is_journal_aborted(journal))
3199 return -EROFS; 3199 return -EROFS;
3200 3200
3201 journal_lock_updates(journal); 3201 journal_lock_updates(journal);
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 9bb046df827a..1586807b8177 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1019,6 +1019,11 @@ static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, str
1019 1019
1020 if (!inode) 1020 if (!inode)
1021 return ERR_PTR(-EACCES); 1021 return ERR_PTR(-EACCES);
1022
1023 if (is_bad_inode(inode)) {
1024 iput(inode);
1025 return ERR_PTR(-ENOENT);
1026 }
1022 } 1027 }
1023 return d_splice_alias(inode, dentry); 1028 return d_splice_alias(inode, dentry);
1024} 1029}
@@ -1054,6 +1059,11 @@ struct dentry *ext3_get_parent(struct dentry *child)
1054 if (!inode) 1059 if (!inode)
1055 return ERR_PTR(-EACCES); 1060 return ERR_PTR(-EACCES);
1056 1061
1062 if (is_bad_inode(inode)) {
1063 iput(inode);
1064 return ERR_PTR(-ENOENT);
1065 }
1066
1057 parent = d_alloc_anon(inode); 1067 parent = d_alloc_anon(inode);
1058 if (!parent) { 1068 if (!parent) {
1059 iput(inode); 1069 iput(inode);
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 6e3062913a92..51d1c456cdab 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -35,6 +35,7 @@
35#include <linux/namei.h> 35#include <linux/namei.h>
36#include <linux/quotaops.h> 36#include <linux/quotaops.h>
37#include <linux/seq_file.h> 37#include <linux/seq_file.h>
38#include <linux/log2.h>
38 39
39#include <asm/uaccess.h> 40#include <asm/uaccess.h>
40 41
@@ -459,6 +460,14 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
459 460
460static void ext3_destroy_inode(struct inode *inode) 461static void ext3_destroy_inode(struct inode *inode)
461{ 462{
463 if (!list_empty(&(EXT3_I(inode)->i_orphan))) {
464 printk("EXT3 Inode %p: orphan list check failed!\n",
465 EXT3_I(inode));
466 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
467 EXT3_I(inode), sizeof(struct ext3_inode_info),
468 false);
469 dump_stack();
470 }
462 kmem_cache_free(ext3_inode_cachep, EXT3_I(inode)); 471 kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
463} 472}
464 473
@@ -1566,7 +1575,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
1566 sbi->s_inode_size = le16_to_cpu(es->s_inode_size); 1575 sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
1567 sbi->s_first_ino = le32_to_cpu(es->s_first_ino); 1576 sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
1568 if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) || 1577 if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
1569 (sbi->s_inode_size & (sbi->s_inode_size - 1)) || 1578 (!is_power_of_2(sbi->s_inode_size)) ||
1570 (sbi->s_inode_size > blocksize)) { 1579 (sbi->s_inode_size > blocksize)) {
1571 printk (KERN_ERR 1580 printk (KERN_ERR
1572 "EXT3-fs: unsupported inode size: %d\n", 1581 "EXT3-fs: unsupported inode size: %d\n",
@@ -2075,6 +2084,7 @@ static int ext3_create_journal(struct super_block * sb,
2075 unsigned int journal_inum) 2084 unsigned int journal_inum)
2076{ 2085{
2077 journal_t *journal; 2086 journal_t *journal;
2087 int err;
2078 2088
2079 if (sb->s_flags & MS_RDONLY) { 2089 if (sb->s_flags & MS_RDONLY) {
2080 printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to " 2090 printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to "
@@ -2082,13 +2092,15 @@ static int ext3_create_journal(struct super_block * sb,
2082 return -EROFS; 2092 return -EROFS;
2083 } 2093 }
2084 2094
2085 if (!(journal = ext3_get_journal(sb, journal_inum))) 2095 journal = ext3_get_journal(sb, journal_inum);
2096 if (!journal)
2086 return -EINVAL; 2097 return -EINVAL;
2087 2098
2088 printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n", 2099 printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n",
2089 journal_inum); 2100 journal_inum);
2090 2101
2091 if (journal_create(journal)) { 2102 err = journal_create(journal);
2103 if (err) {
2092 printk(KERN_ERR "EXT3-fs: error creating journal.\n"); 2104 printk(KERN_ERR "EXT3-fs: error creating journal.\n");
2093 journal_destroy(journal); 2105 journal_destroy(journal);
2094 return -EIO; 2106 return -EIO;
@@ -2139,12 +2151,14 @@ static void ext3_mark_recovery_complete(struct super_block * sb,
2139 2151
2140 journal_lock_updates(journal); 2152 journal_lock_updates(journal);
2141 journal_flush(journal); 2153 journal_flush(journal);
2154 lock_super(sb);
2142 if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) && 2155 if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
2143 sb->s_flags & MS_RDONLY) { 2156 sb->s_flags & MS_RDONLY) {
2144 EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); 2157 EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
2145 sb->s_dirt = 0; 2158 sb->s_dirt = 0;
2146 ext3_commit_super(sb, es, 1); 2159 ext3_commit_super(sb, es, 1);
2147 } 2160 }
2161 unlock_super(sb);
2148 journal_unlock_updates(journal); 2162 journal_unlock_updates(journal);
2149} 2163}
2150 2164
@@ -2333,7 +2347,13 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data)
2333 (sbi->s_mount_state & EXT3_VALID_FS)) 2347 (sbi->s_mount_state & EXT3_VALID_FS))
2334 es->s_state = cpu_to_le16(sbi->s_mount_state); 2348 es->s_state = cpu_to_le16(sbi->s_mount_state);
2335 2349
2350 /*
2351 * We have to unlock super so that we can wait for
2352 * transactions.
2353 */
2354 unlock_super(sb);
2336 ext3_mark_recovery_complete(sb, es); 2355 ext3_mark_recovery_complete(sb, es);
2356 lock_super(sb);
2337 } else { 2357 } else {
2338 __le32 ret; 2358 __le32 ret;
2339 if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb, 2359 if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
@@ -2406,19 +2426,19 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
2406 struct super_block *sb = dentry->d_sb; 2426 struct super_block *sb = dentry->d_sb;
2407 struct ext3_sb_info *sbi = EXT3_SB(sb); 2427 struct ext3_sb_info *sbi = EXT3_SB(sb);
2408 struct ext3_super_block *es = sbi->s_es; 2428 struct ext3_super_block *es = sbi->s_es;
2409 ext3_fsblk_t overhead;
2410 int i;
2411 u64 fsid; 2429 u64 fsid;
2412 2430
2413 if (test_opt (sb, MINIX_DF)) 2431 if (test_opt(sb, MINIX_DF)) {
2414 overhead = 0; 2432 sbi->s_overhead_last = 0;
2415 else { 2433 } else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {
2416 unsigned long ngroups; 2434 unsigned long ngroups = sbi->s_groups_count, i;
2417 ngroups = EXT3_SB(sb)->s_groups_count; 2435 ext3_fsblk_t overhead = 0;
2418 smp_rmb(); 2436 smp_rmb();
2419 2437
2420 /* 2438 /*
2421 * Compute the overhead (FS structures) 2439 * Compute the overhead (FS structures). This is constant
2440 * for a given filesystem unless the number of block groups
2441 * changes so we cache the previous value until it does.
2422 */ 2442 */
2423 2443
2424 /* 2444 /*
@@ -2442,18 +2462,23 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
2442 * Every block group has an inode bitmap, a block 2462 * Every block group has an inode bitmap, a block
2443 * bitmap, and an inode table. 2463 * bitmap, and an inode table.
2444 */ 2464 */
2445 overhead += (ngroups * (2 + EXT3_SB(sb)->s_itb_per_group)); 2465 overhead += ngroups * (2 + sbi->s_itb_per_group);
2466 sbi->s_overhead_last = overhead;
2467 smp_wmb();
2468 sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);
2446 } 2469 }
2447 2470
2448 buf->f_type = EXT3_SUPER_MAGIC; 2471 buf->f_type = EXT3_SUPER_MAGIC;
2449 buf->f_bsize = sb->s_blocksize; 2472 buf->f_bsize = sb->s_blocksize;
2450 buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead; 2473 buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;
2451 buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter); 2474 buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter);
2475 es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
2452 buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count); 2476 buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
2453 if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count)) 2477 if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
2454 buf->f_bavail = 0; 2478 buf->f_bavail = 0;
2455 buf->f_files = le32_to_cpu(es->s_inodes_count); 2479 buf->f_files = le32_to_cpu(es->s_inodes_count);
2456 buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter); 2480 buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter);
2481 es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
2457 buf->f_namelen = EXT3_NAME_LEN; 2482 buf->f_namelen = EXT3_NAME_LEN;
2458 fsid = le64_to_cpup((void *)es->s_uuid) ^ 2483 fsid = le64_to_cpup((void *)es->s_uuid) ^
2459 le64_to_cpup((void *)es->s_uuid + sizeof(u64)); 2484 le64_to_cpup((void *)es->s_uuid + sizeof(u64));
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 3b64bb16c727..9de54ae48dee 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -1585,7 +1585,7 @@ allocated:
1585 ret_block = grp_alloc_blk + ext4_group_first_block_no(sb, group_no); 1585 ret_block = grp_alloc_blk + ext4_group_first_block_no(sb, group_no);
1586 1586
1587 if (in_range(ext4_block_bitmap(sb, gdp), ret_block, num) || 1587 if (in_range(ext4_block_bitmap(sb, gdp), ret_block, num) ||
1588 in_range(ext4_block_bitmap(sb, gdp), ret_block, num) || 1588 in_range(ext4_inode_bitmap(sb, gdp), ret_block, num) ||
1589 in_range(ret_block, ext4_inode_table(sb, gdp), 1589 in_range(ret_block, ext4_inode_table(sb, gdp),
1590 EXT4_SB(sb)->s_itb_per_group) || 1590 EXT4_SB(sb)->s_itb_per_group) ||
1591 in_range(ret_block + num - 1, ext4_inode_table(sb, gdp), 1591 in_range(ret_block + num - 1, ext4_inode_table(sb, gdp),
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 2811e5720ad0..2de339dd7554 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1017,6 +1017,11 @@ static struct dentry *ext4_lookup(struct inode * dir, struct dentry *dentry, str
1017 1017
1018 if (!inode) 1018 if (!inode)
1019 return ERR_PTR(-EACCES); 1019 return ERR_PTR(-EACCES);
1020
1021 if (is_bad_inode(inode)) {
1022 iput(inode);
1023 return ERR_PTR(-ENOENT);
1024 }
1020 } 1025 }
1021 return d_splice_alias(inode, dentry); 1026 return d_splice_alias(inode, dentry);
1022} 1027}
@@ -1052,6 +1057,11 @@ struct dentry *ext4_get_parent(struct dentry *child)
1052 if (!inode) 1057 if (!inode)
1053 return ERR_PTR(-EACCES); 1058 return ERR_PTR(-EACCES);
1054 1059
1060 if (is_bad_inode(inode)) {
1061 iput(inode);
1062 return ERR_PTR(-ENOENT);
1063 }
1064
1055 parent = d_alloc_anon(inode); 1065 parent = d_alloc_anon(inode);
1056 if (!parent) { 1066 if (!parent) {
1057 iput(inode); 1067 iput(inode);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 175b68c60968..d0d8c76c7edb 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -510,6 +510,14 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
510 510
511static void ext4_destroy_inode(struct inode *inode) 511static void ext4_destroy_inode(struct inode *inode)
512{ 512{
513 if (!list_empty(&(EXT4_I(inode)->i_orphan))) {
514 printk("EXT4 Inode %p: orphan list check failed!\n",
515 EXT4_I(inode));
516 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
517 EXT4_I(inode), sizeof(struct ext4_inode_info),
518 true);
519 dump_stack();
520 }
513 kmem_cache_free(ext4_inode_cachep, EXT4_I(inode)); 521 kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
514} 522}
515 523
@@ -2150,6 +2158,7 @@ static int ext4_create_journal(struct super_block * sb,
2150 unsigned int journal_inum) 2158 unsigned int journal_inum)
2151{ 2159{
2152 journal_t *journal; 2160 journal_t *journal;
2161 int err;
2153 2162
2154 if (sb->s_flags & MS_RDONLY) { 2163 if (sb->s_flags & MS_RDONLY) {
2155 printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to " 2164 printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to "
@@ -2157,13 +2166,15 @@ static int ext4_create_journal(struct super_block * sb,
2157 return -EROFS; 2166 return -EROFS;
2158 } 2167 }
2159 2168
2160 if (!(journal = ext4_get_journal(sb, journal_inum))) 2169 journal = ext4_get_journal(sb, journal_inum);
2170 if (!journal)
2161 return -EINVAL; 2171 return -EINVAL;
2162 2172
2163 printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n", 2173 printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n",
2164 journal_inum); 2174 journal_inum);
2165 2175
2166 if (jbd2_journal_create(journal)) { 2176 err = jbd2_journal_create(journal);
2177 if (err) {
2167 printk(KERN_ERR "EXT4-fs: error creating journal.\n"); 2178 printk(KERN_ERR "EXT4-fs: error creating journal.\n");
2168 jbd2_journal_destroy(journal); 2179 jbd2_journal_destroy(journal);
2169 return -EIO; 2180 return -EIO;
@@ -2214,12 +2225,14 @@ static void ext4_mark_recovery_complete(struct super_block * sb,
2214 2225
2215 jbd2_journal_lock_updates(journal); 2226 jbd2_journal_lock_updates(journal);
2216 jbd2_journal_flush(journal); 2227 jbd2_journal_flush(journal);
2228 lock_super(sb);
2217 if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER) && 2229 if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER) &&
2218 sb->s_flags & MS_RDONLY) { 2230 sb->s_flags & MS_RDONLY) {
2219 EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); 2231 EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
2220 sb->s_dirt = 0; 2232 sb->s_dirt = 0;
2221 ext4_commit_super(sb, es, 1); 2233 ext4_commit_super(sb, es, 1);
2222 } 2234 }
2235 unlock_super(sb);
2223 jbd2_journal_unlock_updates(journal); 2236 jbd2_journal_unlock_updates(journal);
2224} 2237}
2225 2238
@@ -2408,7 +2421,13 @@ static int ext4_remount (struct super_block * sb, int * flags, char * data)
2408 (sbi->s_mount_state & EXT4_VALID_FS)) 2421 (sbi->s_mount_state & EXT4_VALID_FS))
2409 es->s_state = cpu_to_le16(sbi->s_mount_state); 2422 es->s_state = cpu_to_le16(sbi->s_mount_state);
2410 2423
2424 /*
2425 * We have to unlock super so that we can wait for
2426 * transactions.
2427 */
2428 unlock_super(sb);
2411 ext4_mark_recovery_complete(sb, es); 2429 ext4_mark_recovery_complete(sb, es);
2430 lock_super(sb);
2412 } else { 2431 } else {
2413 __le32 ret; 2432 __le32 ret;
2414 if ((ret = EXT4_HAS_RO_COMPAT_FEATURE(sb, 2433 if ((ret = EXT4_HAS_RO_COMPAT_FEATURE(sb,
@@ -2481,19 +2500,19 @@ static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
2481 struct super_block *sb = dentry->d_sb; 2500 struct super_block *sb = dentry->d_sb;
2482 struct ext4_sb_info *sbi = EXT4_SB(sb); 2501 struct ext4_sb_info *sbi = EXT4_SB(sb);
2483 struct ext4_super_block *es = sbi->s_es; 2502 struct ext4_super_block *es = sbi->s_es;
2484 ext4_fsblk_t overhead;
2485 int i;
2486 u64 fsid; 2503 u64 fsid;
2487 2504
2488 if (test_opt (sb, MINIX_DF)) 2505 if (test_opt(sb, MINIX_DF)) {
2489 overhead = 0; 2506 sbi->s_overhead_last = 0;
2490 else { 2507 } else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {
2491 unsigned long ngroups; 2508 unsigned long ngroups = sbi->s_groups_count, i;
2492 ngroups = EXT4_SB(sb)->s_groups_count; 2509 ext4_fsblk_t overhead = 0;
2493 smp_rmb(); 2510 smp_rmb();
2494 2511
2495 /* 2512 /*
2496 * Compute the overhead (FS structures) 2513 * Compute the overhead (FS structures). This is constant
2514 * for a given filesystem unless the number of block groups
2515 * changes so we cache the previous value until it does.
2497 */ 2516 */
2498 2517
2499 /* 2518 /*
@@ -2517,18 +2536,23 @@ static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
2517 * Every block group has an inode bitmap, a block 2536 * Every block group has an inode bitmap, a block
2518 * bitmap, and an inode table. 2537 * bitmap, and an inode table.
2519 */ 2538 */
2520 overhead += (ngroups * (2 + EXT4_SB(sb)->s_itb_per_group)); 2539 overhead += ngroups * (2 + sbi->s_itb_per_group);
2540 sbi->s_overhead_last = overhead;
2541 smp_wmb();
2542 sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);
2521 } 2543 }
2522 2544
2523 buf->f_type = EXT4_SUPER_MAGIC; 2545 buf->f_type = EXT4_SUPER_MAGIC;
2524 buf->f_bsize = sb->s_blocksize; 2546 buf->f_bsize = sb->s_blocksize;
2525 buf->f_blocks = ext4_blocks_count(es) - overhead; 2547 buf->f_blocks = ext4_blocks_count(es) - sbi->s_overhead_last;
2526 buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter); 2548 buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter);
2549 es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
2527 buf->f_bavail = buf->f_bfree - ext4_r_blocks_count(es); 2550 buf->f_bavail = buf->f_bfree - ext4_r_blocks_count(es);
2528 if (buf->f_bfree < ext4_r_blocks_count(es)) 2551 if (buf->f_bfree < ext4_r_blocks_count(es))
2529 buf->f_bavail = 0; 2552 buf->f_bavail = 0;
2530 buf->f_files = le32_to_cpu(es->s_inodes_count); 2553 buf->f_files = le32_to_cpu(es->s_inodes_count);
2531 buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter); 2554 buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter);
2555 es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
2532 buf->f_namelen = EXT4_NAME_LEN; 2556 buf->f_namelen = EXT4_NAME_LEN;
2533 fsid = le64_to_cpup((void *)es->s_uuid) ^ 2557 fsid = le64_to_cpup((void *)es->s_uuid) ^
2534 le64_to_cpup((void *)es->s_uuid + sizeof(u64)); 2558 le64_to_cpup((void *)es->s_uuid + sizeof(u64));
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index ccf161dffb63..72cbcd61bd95 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -313,7 +313,7 @@ int fat_search_long(struct inode *inode, const unsigned char *name,
313 wchar_t bufuname[14]; 313 wchar_t bufuname[14];
314 unsigned char xlate_len, nr_slots; 314 unsigned char xlate_len, nr_slots;
315 wchar_t *unicode = NULL; 315 wchar_t *unicode = NULL;
316 unsigned char work[8], bufname[260]; /* 256 + 4 */ 316 unsigned char work[MSDOS_NAME], bufname[260]; /* 256 + 4 */
317 int uni_xlate = sbi->options.unicode_xlate; 317 int uni_xlate = sbi->options.unicode_xlate;
318 int utf8 = sbi->options.utf8; 318 int utf8 = sbi->options.utf8;
319 int anycase = (sbi->options.name_check != 's'); 319 int anycase = (sbi->options.name_check != 's');
@@ -351,7 +351,8 @@ parse_record:
351 if (work[0] == 0x05) 351 if (work[0] == 0x05)
352 work[0] = 0xE5; 352 work[0] = 0xE5;
353 for (i = 0, j = 0, last_u = 0; i < 8;) { 353 for (i = 0, j = 0, last_u = 0; i < 8;) {
354 if (!work[i]) break; 354 if (!work[i])
355 break;
355 chl = fat_shortname2uni(nls_disk, &work[i], 8 - i, 356 chl = fat_shortname2uni(nls_disk, &work[i], 8 - i,
356 &bufuname[j++], opt_shortname, 357 &bufuname[j++], opt_shortname,
357 de->lcase & CASE_LOWER_BASE); 358 de->lcase & CASE_LOWER_BASE);
@@ -365,13 +366,15 @@ parse_record:
365 } 366 }
366 j = last_u; 367 j = last_u;
367 fat_short2uni(nls_disk, ".", 1, &bufuname[j++]); 368 fat_short2uni(nls_disk, ".", 1, &bufuname[j++]);
368 for (i = 0; i < 3;) { 369 for (i = 8; i < MSDOS_NAME;) {
369 if (!de->ext[i]) break; 370 if (!work[i])
370 chl = fat_shortname2uni(nls_disk, &de->ext[i], 3 - i, 371 break;
372 chl = fat_shortname2uni(nls_disk, &work[i],
373 MSDOS_NAME - i,
371 &bufuname[j++], opt_shortname, 374 &bufuname[j++], opt_shortname,
372 de->lcase & CASE_LOWER_EXT); 375 de->lcase & CASE_LOWER_EXT);
373 if (chl <= 1) { 376 if (chl <= 1) {
374 if (de->ext[i] != ' ') 377 if (work[i] != ' ')
375 last_u = j; 378 last_u = j;
376 } else { 379 } else {
377 last_u = j; 380 last_u = j;
@@ -445,7 +448,7 @@ static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
445 int fill_len; 448 int fill_len;
446 wchar_t bufuname[14]; 449 wchar_t bufuname[14];
447 wchar_t *unicode = NULL; 450 wchar_t *unicode = NULL;
448 unsigned char c, work[8], bufname[56], *ptname = bufname; 451 unsigned char c, work[MSDOS_NAME], bufname[56], *ptname = bufname;
449 unsigned long lpos, dummy, *furrfu = &lpos; 452 unsigned long lpos, dummy, *furrfu = &lpos;
450 int uni_xlate = sbi->options.unicode_xlate; 453 int uni_xlate = sbi->options.unicode_xlate;
451 int isvfat = sbi->options.isvfat; 454 int isvfat = sbi->options.isvfat;
@@ -527,7 +530,8 @@ parse_record:
527 if (work[0] == 0x05) 530 if (work[0] == 0x05)
528 work[0] = 0xE5; 531 work[0] = 0xE5;
529 for (i = 0, j = 0, last = 0, last_u = 0; i < 8;) { 532 for (i = 0, j = 0, last = 0, last_u = 0; i < 8;) {
530 if (!(c = work[i])) break; 533 if (!(c = work[i]))
534 break;
531 chl = fat_shortname2uni(nls_disk, &work[i], 8 - i, 535 chl = fat_shortname2uni(nls_disk, &work[i], 8 - i,
532 &bufuname[j++], opt_shortname, 536 &bufuname[j++], opt_shortname,
533 de->lcase & CASE_LOWER_BASE); 537 de->lcase & CASE_LOWER_BASE);
@@ -549,9 +553,10 @@ parse_record:
549 j = last_u; 553 j = last_u;
550 fat_short2uni(nls_disk, ".", 1, &bufuname[j++]); 554 fat_short2uni(nls_disk, ".", 1, &bufuname[j++]);
551 ptname[i++] = '.'; 555 ptname[i++] = '.';
552 for (i2 = 0; i2 < 3;) { 556 for (i2 = 8; i2 < MSDOS_NAME;) {
553 if (!(c = de->ext[i2])) break; 557 if (!(c = work[i2]))
554 chl = fat_shortname2uni(nls_disk, &de->ext[i2], 3 - i2, 558 break;
559 chl = fat_shortname2uni(nls_disk, &work[i2], MSDOS_NAME - i2,
555 &bufuname[j++], opt_shortname, 560 &bufuname[j++], opt_shortname,
556 de->lcase & CASE_LOWER_EXT); 561 de->lcase & CASE_LOWER_EXT);
557 if (chl <= 1) { 562 if (chl <= 1) {
@@ -563,8 +568,8 @@ parse_record:
563 } 568 }
564 } else { 569 } else {
565 last_u = j; 570 last_u = j;
566 for (chi = 0; chi < chl && i2 < 3; chi++) { 571 for (chi = 0; chi < chl && i2 < MSDOS_NAME; chi++) {
567 ptname[i++] = de->ext[i2++]; 572 ptname[i++] = work[i2++];
568 last = i; 573 last = i;
569 } 574 }
570 } 575 }
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index ab171ea8e869..2c1b73fb82ae 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -17,6 +17,8 @@ struct fatent_operations {
17 int (*ent_next)(struct fat_entry *); 17 int (*ent_next)(struct fat_entry *);
18}; 18};
19 19
20static DEFINE_SPINLOCK(fat12_entry_lock);
21
20static void fat12_ent_blocknr(struct super_block *sb, int entry, 22static void fat12_ent_blocknr(struct super_block *sb, int entry,
21 int *offset, sector_t *blocknr) 23 int *offset, sector_t *blocknr)
22{ 24{
@@ -116,10 +118,13 @@ static int fat12_ent_get(struct fat_entry *fatent)
116 u8 **ent12_p = fatent->u.ent12_p; 118 u8 **ent12_p = fatent->u.ent12_p;
117 int next; 119 int next;
118 120
121 spin_lock(&fat12_entry_lock);
119 if (fatent->entry & 1) 122 if (fatent->entry & 1)
120 next = (*ent12_p[0] >> 4) | (*ent12_p[1] << 4); 123 next = (*ent12_p[0] >> 4) | (*ent12_p[1] << 4);
121 else 124 else
122 next = (*ent12_p[1] << 8) | *ent12_p[0]; 125 next = (*ent12_p[1] << 8) | *ent12_p[0];
126 spin_unlock(&fat12_entry_lock);
127
123 next &= 0x0fff; 128 next &= 0x0fff;
124 if (next >= BAD_FAT12) 129 if (next >= BAD_FAT12)
125 next = FAT_ENT_EOF; 130 next = FAT_ENT_EOF;
@@ -151,6 +156,7 @@ static void fat12_ent_put(struct fat_entry *fatent, int new)
151 if (new == FAT_ENT_EOF) 156 if (new == FAT_ENT_EOF)
152 new = EOF_FAT12; 157 new = EOF_FAT12;
153 158
159 spin_lock(&fat12_entry_lock);
154 if (fatent->entry & 1) { 160 if (fatent->entry & 1) {
155 *ent12_p[0] = (new << 4) | (*ent12_p[0] & 0x0f); 161 *ent12_p[0] = (new << 4) | (*ent12_p[0] & 0x0f);
156 *ent12_p[1] = new >> 4; 162 *ent12_p[1] = new >> 4;
@@ -158,6 +164,7 @@ static void fat12_ent_put(struct fat_entry *fatent, int new)
158 *ent12_p[0] = new & 0xff; 164 *ent12_p[0] = new & 0xff;
159 *ent12_p[1] = (*ent12_p[1] & 0xf0) | (new >> 8); 165 *ent12_p[1] = (*ent12_p[1] & 0xf0) | (new >> 8);
160 } 166 }
167 spin_unlock(&fat12_entry_lock);
161 168
162 mark_buffer_dirty(fatent->bhs[0]); 169 mark_buffer_dirty(fatent->bhs[0]);
163 if (fatent->nr_bhs == 2) 170 if (fatent->nr_bhs == 2)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 479722d89667..cfaf5877d98b 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -354,8 +354,7 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
354 } else { /* not a directory */ 354 } else { /* not a directory */
355 inode->i_generation |= 1; 355 inode->i_generation |= 1;
356 inode->i_mode = MSDOS_MKMODE(de->attr, 356 inode->i_mode = MSDOS_MKMODE(de->attr,
357 ((sbi->options.showexec && 357 ((sbi->options.showexec && !is_exec(de->name + 8))
358 !is_exec(de->ext))
359 ? S_IRUGO|S_IWUGO : S_IRWXUGO) 358 ? S_IRUGO|S_IWUGO : S_IRWXUGO)
360 & ~sbi->options.fs_fmask) | S_IFREG; 359 & ~sbi->options.fs_fmask) | S_IFREG;
361 MSDOS_I(inode)->i_start = le16_to_cpu(de->start); 360 MSDOS_I(inode)->i_start = le16_to_cpu(de->start);
diff --git a/fs/freevxfs/vxfs_dir.h b/fs/freevxfs/vxfs_dir.h
index 8a4dfef1ddad..3c96d6e63978 100644
--- a/fs/freevxfs/vxfs_dir.h
+++ b/fs/freevxfs/vxfs_dir.h
@@ -80,7 +80,7 @@ struct vxfs_direct {
80 * a d_name with size len. 80 * a d_name with size len.
81 */ 81 */
82#define VXFS_DIRPAD 4 82#define VXFS_DIRPAD 4
83#define VXFS_NAMEMIN ((int)((struct vxfs_direct *)0)->d_name) 83#define VXFS_NAMEMIN offsetof(struct vxfs_direct, d_name)
84#define VXFS_DIRROUND(len) ((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1)) 84#define VXFS_DIRROUND(len) ((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1))
85#define VXFS_DIRLEN(len) (VXFS_DIRROUND(VXFS_NAMEMIN + (len))) 85#define VXFS_DIRLEN(len) (VXFS_DIRROUND(VXFS_NAMEMIN + (len)))
86 86
diff --git a/fs/gfs2/eaops.c b/fs/gfs2/eaops.c
index c1f44009853f..1ab3e9d73886 100644
--- a/fs/gfs2/eaops.c
+++ b/fs/gfs2/eaops.c
@@ -11,6 +11,7 @@
11#include <linux/spinlock.h> 11#include <linux/spinlock.h>
12#include <linux/completion.h> 12#include <linux/completion.h>
13#include <linux/buffer_head.h> 13#include <linux/buffer_head.h>
14#include <linux/capability.h>
14#include <linux/xattr.h> 15#include <linux/xattr.h>
15#include <linux/gfs2_ondisk.h> 16#include <linux/gfs2_ondisk.h>
16#include <linux/lm_interface.h> 17#include <linux/lm_interface.h>
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 90ebab753d30..050d29c0a5b5 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -62,8 +62,10 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
62 if ((HFSPLUS_SB(sb).flags & HFSPLUS_SB_HFSX) && 62 if ((HFSPLUS_SB(sb).flags & HFSPLUS_SB_HFSX) &&
63 (head->key_type == HFSPLUS_KEY_BINARY)) 63 (head->key_type == HFSPLUS_KEY_BINARY))
64 tree->keycmp = hfsplus_cat_bin_cmp_key; 64 tree->keycmp = hfsplus_cat_bin_cmp_key;
65 else 65 else {
66 tree->keycmp = hfsplus_cat_case_cmp_key; 66 tree->keycmp = hfsplus_cat_case_cmp_key;
67 HFSPLUS_SB(sb).flags |= HFSPLUS_SB_CASEFOLD;
68 }
67 } else { 69 } else {
68 printk(KERN_ERR "hfs: unknown B*Tree requested\n"); 70 printk(KERN_ERR "hfs: unknown B*Tree requested\n");
69 goto fail_page; 71 goto fail_page;
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 80b5682a2273..1955ee61251c 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -36,6 +36,8 @@ static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry,
36 u16 type; 36 u16 type;
37 37
38 sb = dir->i_sb; 38 sb = dir->i_sb;
39
40 dentry->d_op = &hfsplus_dentry_operations;
39 dentry->d_fsdata = NULL; 41 dentry->d_fsdata = NULL;
40 hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd); 42 hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
41 hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name); 43 hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name);
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 3915635b4470..d9f5eda6d039 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -150,6 +150,7 @@ struct hfsplus_sb_info {
150#define HFSPLUS_SB_NODECOMPOSE 0x0002 150#define HFSPLUS_SB_NODECOMPOSE 0x0002
151#define HFSPLUS_SB_FORCE 0x0004 151#define HFSPLUS_SB_FORCE 0x0004
152#define HFSPLUS_SB_HFSX 0x0008 152#define HFSPLUS_SB_HFSX 0x0008
153#define HFSPLUS_SB_CASEFOLD 0x0010
153 154
154 155
155struct hfsplus_inode_info { 156struct hfsplus_inode_info {
@@ -321,6 +322,7 @@ void hfsplus_file_truncate(struct inode *);
321/* inode.c */ 322/* inode.c */
322extern const struct address_space_operations hfsplus_aops; 323extern const struct address_space_operations hfsplus_aops;
323extern const struct address_space_operations hfsplus_btree_aops; 324extern const struct address_space_operations hfsplus_btree_aops;
325extern struct dentry_operations hfsplus_dentry_operations;
324 326
325void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *); 327void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
326void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *); 328void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
@@ -353,6 +355,8 @@ int hfsplus_strcasecmp(const struct hfsplus_unistr *, const struct hfsplus_unist
353int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *); 355int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
354int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *); 356int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *);
355int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int); 357int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int);
358int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str);
359int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2);
356 360
357/* wrapper.c */ 361/* wrapper.c */
358int hfsplus_read_wrapper(struct super_block *); 362int hfsplus_read_wrapper(struct super_block *);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 409ce5429c91..6f7c662174db 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -131,6 +131,11 @@ const struct address_space_operations hfsplus_aops = {
131 .writepages = hfsplus_writepages, 131 .writepages = hfsplus_writepages,
132}; 132};
133 133
134struct dentry_operations hfsplus_dentry_operations = {
135 .d_hash = hfsplus_hash_dentry,
136 .d_compare = hfsplus_compare_dentry,
137};
138
134static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry, 139static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
135 struct nameidata *nd) 140 struct nameidata *nd)
136{ 141{
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index ebd1b380cbbc..6d87a2a9534d 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -283,11 +283,10 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
283 struct nls_table *nls = NULL; 283 struct nls_table *nls = NULL;
284 int err = -EINVAL; 284 int err = -EINVAL;
285 285
286 sbi = kmalloc(sizeof(struct hfsplus_sb_info), GFP_KERNEL); 286 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
287 if (!sbi) 287 if (!sbi)
288 return -ENOMEM; 288 return -ENOMEM;
289 289
290 memset(sbi, 0, sizeof(HFSPLUS_SB(sb)));
291 sb->s_fs_info = sbi; 290 sb->s_fs_info = sbi;
292 INIT_HLIST_HEAD(&sbi->rsrc_inodes); 291 INIT_HLIST_HEAD(&sbi->rsrc_inodes);
293 hfsplus_fill_defaults(sbi); 292 hfsplus_fill_defaults(sbi);
@@ -381,6 +380,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
381 iput(root); 380 iput(root);
382 goto cleanup; 381 goto cleanup;
383 } 382 }
383 sb->s_root->d_op = &hfsplus_dentry_operations;
384 384
385 str.len = sizeof(HFSP_HIDDENDIR_NAME) - 1; 385 str.len = sizeof(HFSP_HIDDENDIR_NAME) - 1;
386 str.name = HFSP_HIDDENDIR_NAME; 386 str.name = HFSP_HIDDENDIR_NAME;
diff --git a/fs/hfsplus/unicode.c b/fs/hfsplus/unicode.c
index 689c8bd721fb..9e10f9444b64 100644
--- a/fs/hfsplus/unicode.c
+++ b/fs/hfsplus/unicode.c
@@ -239,61 +239,201 @@ out:
239 return res; 239 return res;
240} 240}
241 241
242int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr, const char *astr, int len) 242/*
243 * Convert one or more ASCII characters into a single unicode character.
244 * Returns the number of ASCII characters corresponding to the unicode char.
245 */
246static inline int asc2unichar(struct super_block *sb, const char *astr, int len,
247 wchar_t *uc)
243{ 248{
244 struct nls_table *nls = HFSPLUS_SB(sb).nls; 249 int size = HFSPLUS_SB(sb).nls->char2uni(astr, len, uc);
245 int size, off, decompose; 250 if (size <= 0) {
251 *uc = '?';
252 size = 1;
253 }
254 switch (*uc) {
255 case 0x2400:
256 *uc = 0;
257 break;
258 case ':':
259 *uc = '/';
260 break;
261 }
262 return size;
263}
264
265/* Decomposes a single unicode character. */
266static inline u16 *decompose_unichar(wchar_t uc, int *size)
267{
268 int off;
269
270 off = hfsplus_decompose_table[(uc >> 12) & 0xf];
271 if (off == 0 || off == 0xffff)
272 return NULL;
273
274 off = hfsplus_decompose_table[off + ((uc >> 8) & 0xf)];
275 if (!off)
276 return NULL;
277
278 off = hfsplus_decompose_table[off + ((uc >> 4) & 0xf)];
279 if (!off)
280 return NULL;
281
282 off = hfsplus_decompose_table[off + (uc & 0xf)];
283 *size = off & 3;
284 if (*size == 0)
285 return NULL;
286 return hfsplus_decompose_table + (off / 4);
287}
288
289int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr,
290 const char *astr, int len)
291{
292 int size, dsize, decompose;
293 u16 *dstr, outlen = 0;
246 wchar_t c; 294 wchar_t c;
247 u16 outlen = 0;
248 295
249 decompose = !(HFSPLUS_SB(sb).flags & HFSPLUS_SB_NODECOMPOSE); 296 decompose = !(HFSPLUS_SB(sb).flags & HFSPLUS_SB_NODECOMPOSE);
250
251 while (outlen < HFSPLUS_MAX_STRLEN && len > 0) { 297 while (outlen < HFSPLUS_MAX_STRLEN && len > 0) {
252 size = nls->char2uni(astr, len, &c); 298 size = asc2unichar(sb, astr, len, &c);
253 if (size <= 0) { 299
254 c = '?'; 300 if (decompose && (dstr = decompose_unichar(c, &dsize))) {
255 size = 1; 301 if (outlen + dsize > HFSPLUS_MAX_STRLEN)
256 }
257 astr += size;
258 len -= size;
259 switch (c) {
260 case 0x2400:
261 c = 0;
262 break;
263 case ':':
264 c = '/';
265 break;
266 }
267 if (c >= 0xc0 && decompose) {
268 off = hfsplus_decompose_table[(c >> 12) & 0xf];
269 if (!off)
270 goto done;
271 if (off == 0xffff) {
272 goto done;
273 }
274 off = hfsplus_decompose_table[off + ((c >> 8) & 0xf)];
275 if (!off)
276 goto done;
277 off = hfsplus_decompose_table[off + ((c >> 4) & 0xf)];
278 if (!off)
279 goto done;
280 off = hfsplus_decompose_table[off + (c & 0xf)];
281 size = off & 3;
282 if (!size)
283 goto done;
284 off /= 4;
285 if (outlen + size > HFSPLUS_MAX_STRLEN)
286 break; 302 break;
287 do { 303 do {
288 ustr->unicode[outlen++] = cpu_to_be16(hfsplus_decompose_table[off++]); 304 ustr->unicode[outlen++] = cpu_to_be16(*dstr++);
289 } while (--size > 0); 305 } while (--dsize > 0);
290 continue; 306 } else
291 } 307 ustr->unicode[outlen++] = cpu_to_be16(c);
292 done: 308
293 ustr->unicode[outlen++] = cpu_to_be16(c); 309 astr += size;
310 len -= size;
294 } 311 }
295 ustr->length = cpu_to_be16(outlen); 312 ustr->length = cpu_to_be16(outlen);
296 if (len > 0) 313 if (len > 0)
297 return -ENAMETOOLONG; 314 return -ENAMETOOLONG;
298 return 0; 315 return 0;
299} 316}
317
318/*
319 * Hash a string to an integer as appropriate for the HFS+ filesystem.
320 * Composed unicode characters are decomposed and case-folding is performed
321 * if the appropriate bits are (un)set on the superblock.
322 */
323int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str)
324{
325 struct super_block *sb = dentry->d_sb;
326 const char *astr;
327 const u16 *dstr;
328 int casefold, decompose, size, dsize, len;
329 unsigned long hash;
330 wchar_t c;
331 u16 c2;
332
333 casefold = (HFSPLUS_SB(sb).flags & HFSPLUS_SB_CASEFOLD);
334 decompose = !(HFSPLUS_SB(sb).flags & HFSPLUS_SB_NODECOMPOSE);
335 hash = init_name_hash();
336 astr = str->name;
337 len = str->len;
338 while (len > 0) {
339 size = asc2unichar(sb, astr, len, &c);
340 astr += size;
341 len -= size;
342
343 if (decompose && (dstr = decompose_unichar(c, &dsize))) {
344 do {
345 c2 = *dstr++;
346 if (!casefold || (c2 = case_fold(c2)))
347 hash = partial_name_hash(c2, hash);
348 } while (--dsize > 0);
349 } else {
350 c2 = c;
351 if (!casefold || (c2 = case_fold(c2)))
352 hash = partial_name_hash(c2, hash);
353 }
354 }
355 str->hash = end_name_hash(hash);
356
357 return 0;
358}
359
360/*
361 * Compare strings with HFS+ filename ordering.
362 * Composed unicode characters are decomposed and case-folding is performed
363 * if the appropriate bits are (un)set on the superblock.
364 */
365int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2)
366{
367 struct super_block *sb = dentry->d_sb;
368 int casefold, decompose, size;
369 int dsize1, dsize2, len1, len2;
370 const u16 *dstr1, *dstr2;
371 const char *astr1, *astr2;
372 u16 c1, c2;
373 wchar_t c;
374
375 casefold = (HFSPLUS_SB(sb).flags & HFSPLUS_SB_CASEFOLD);
376 decompose = !(HFSPLUS_SB(sb).flags & HFSPLUS_SB_NODECOMPOSE);
377 astr1 = s1->name;
378 len1 = s1->len;
379 astr2 = s2->name;
380 len2 = s2->len;
381 dsize1 = dsize2 = 0;
382 dstr1 = dstr2 = NULL;
383
384 while (len1 > 0 && len2 > 0) {
385 if (!dsize1) {
386 size = asc2unichar(sb, astr1, len1, &c);
387 astr1 += size;
388 len1 -= size;
389
390 if (!decompose || !(dstr1 = decompose_unichar(c, &dsize1))) {
391 c1 = c;
392 dstr1 = &c1;
393 dsize1 = 1;
394 }
395 }
396
397 if (!dsize2) {
398 size = asc2unichar(sb, astr2, len2, &c);
399 astr2 += size;
400 len2 -= size;
401
402 if (!decompose || !(dstr2 = decompose_unichar(c, &dsize2))) {
403 c2 = c;
404 dstr2 = &c2;
405 dsize2 = 1;
406 }
407 }
408
409 c1 = *dstr1;
410 c2 = *dstr2;
411 if (casefold) {
412 if (!(c1 = case_fold(c1))) {
413 dstr1++;
414 dsize1--;
415 continue;
416 }
417 if (!(c2 = case_fold(c2))) {
418 dstr2++;
419 dsize2--;
420 continue;
421 }
422 }
423 if (c1 < c2)
424 return -1;
425 else if (c1 > c2)
426 return 1;
427
428 dstr1++;
429 dsize1--;
430 dstr2++;
431 dsize2--;
432 }
433
434 if (len1 < len2)
435 return -1;
436 if (len1 > len2)
437 return 1;
438 return 0;
439}
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index e6b46b3ac2fe..d145cb79c30a 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -13,15 +13,18 @@
13#include <linux/fs.h> 13#include <linux/fs.h>
14#include <linux/mount.h> 14#include <linux/mount.h>
15#include <linux/file.h> 15#include <linux/file.h>
16#include <linux/kernel.h>
16#include <linux/writeback.h> 17#include <linux/writeback.h>
17#include <linux/pagemap.h> 18#include <linux/pagemap.h>
18#include <linux/highmem.h> 19#include <linux/highmem.h>
19#include <linux/init.h> 20#include <linux/init.h>
20#include <linux/string.h> 21#include <linux/string.h>
21#include <linux/capability.h> 22#include <linux/capability.h>
23#include <linux/ctype.h>
22#include <linux/backing-dev.h> 24#include <linux/backing-dev.h>
23#include <linux/hugetlb.h> 25#include <linux/hugetlb.h>
24#include <linux/pagevec.h> 26#include <linux/pagevec.h>
27#include <linux/parser.h>
25#include <linux/mman.h> 28#include <linux/mman.h>
26#include <linux/quotaops.h> 29#include <linux/quotaops.h>
27#include <linux/slab.h> 30#include <linux/slab.h>
@@ -47,6 +50,21 @@ static struct backing_dev_info hugetlbfs_backing_dev_info = {
47 50
48int sysctl_hugetlb_shm_group; 51int sysctl_hugetlb_shm_group;
49 52
53enum {
54 Opt_size, Opt_nr_inodes,
55 Opt_mode, Opt_uid, Opt_gid,
56 Opt_err,
57};
58
59static match_table_t tokens = {
60 {Opt_size, "size=%s"},
61 {Opt_nr_inodes, "nr_inodes=%s"},
62 {Opt_mode, "mode=%o"},
63 {Opt_uid, "uid=%u"},
64 {Opt_gid, "gid=%u"},
65 {Opt_err, NULL},
66};
67
50static void huge_pagevec_release(struct pagevec *pvec) 68static void huge_pagevec_release(struct pagevec *pvec)
51{ 69{
52 int i; 70 int i;
@@ -594,46 +612,73 @@ static const struct super_operations hugetlbfs_ops = {
594static int 612static int
595hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) 613hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
596{ 614{
597 char *opt, *value, *rest; 615 char *p, *rest;
616 substring_t args[MAX_OPT_ARGS];
617 int option;
598 618
599 if (!options) 619 if (!options)
600 return 0; 620 return 0;
601 while ((opt = strsep(&options, ",")) != NULL) { 621
602 if (!*opt) 622 while ((p = strsep(&options, ",")) != NULL) {
623 int token;
624 if (!*p)
603 continue; 625 continue;
604 626
605 value = strchr(opt, '='); 627 token = match_token(p, tokens, args);
606 if (!value || !*value) 628 switch (token) {
607 return -EINVAL; 629 case Opt_uid:
608 else 630 if (match_int(&args[0], &option))
609 *value++ = '\0'; 631 goto bad_val;
610 632 pconfig->uid = option;
611 if (!strcmp(opt, "uid")) 633 break;
612 pconfig->uid = simple_strtoul(value, &value, 0); 634
613 else if (!strcmp(opt, "gid")) 635 case Opt_gid:
614 pconfig->gid = simple_strtoul(value, &value, 0); 636 if (match_int(&args[0], &option))
615 else if (!strcmp(opt, "mode")) 637 goto bad_val;
616 pconfig->mode = simple_strtoul(value,&value,0) & 0777U; 638 pconfig->gid = option;
617 else if (!strcmp(opt, "size")) { 639 break;
618 unsigned long long size = memparse(value, &rest); 640
641 case Opt_mode:
642 if (match_octal(&args[0], &option))
643 goto bad_val;
644 pconfig->mode = option & 0777U;
645 break;
646
647 case Opt_size: {
648 unsigned long long size;
649 /* memparse() will accept a K/M/G without a digit */
650 if (!isdigit(*args[0].from))
651 goto bad_val;
652 size = memparse(args[0].from, &rest);
619 if (*rest == '%') { 653 if (*rest == '%') {
620 size <<= HPAGE_SHIFT; 654 size <<= HPAGE_SHIFT;
621 size *= max_huge_pages; 655 size *= max_huge_pages;
622 do_div(size, 100); 656 do_div(size, 100);
623 rest++;
624 } 657 }
625 pconfig->nr_blocks = (size >> HPAGE_SHIFT); 658 pconfig->nr_blocks = (size >> HPAGE_SHIFT);
626 value = rest; 659 break;
627 } else if (!strcmp(opt,"nr_inodes")) { 660 }
628 pconfig->nr_inodes = memparse(value, &rest); 661
629 value = rest; 662 case Opt_nr_inodes:
630 } else 663 /* memparse() will accept a K/M/G without a digit */
631 return -EINVAL; 664 if (!isdigit(*args[0].from))
665 goto bad_val;
666 pconfig->nr_inodes = memparse(args[0].from, &rest);
667 break;
632 668
633 if (*value) 669 default:
670 printk(KERN_ERR "hugetlbfs: Bad mount option: \"%s\"\n",
671 p);
634 return -EINVAL; 672 return -EINVAL;
673 break;
674 }
635 } 675 }
636 return 0; 676 return 0;
677
678bad_val:
679 printk(KERN_ERR "hugetlbfs: Bad value '%s' for mount option '%s'\n",
680 args[0].from, p);
681 return 1;
637} 682}
638 683
639static int 684static int
@@ -651,7 +696,6 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
651 config.gid = current->fsgid; 696 config.gid = current->fsgid;
652 config.mode = 0755; 697 config.mode = 0755;
653 ret = hugetlbfs_parse_options(data, &config); 698 ret = hugetlbfs_parse_options(data, &config);
654
655 if (ret) 699 if (ret)
656 return ret; 700 return ret;
657 701
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 8c90cbc903fa..c2a773e8620b 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -12,7 +12,6 @@
12#include <linux/fs.h> 12#include <linux/fs.h>
13#include <linux/security.h> 13#include <linux/security.h>
14#include <linux/module.h> 14#include <linux/module.h>
15#include <linux/kallsyms.h>
16 15
17#include <asm/uaccess.h> 16#include <asm/uaccess.h>
18#include <asm/ioctls.h> 17#include <asm/ioctls.h>
@@ -21,7 +20,6 @@ static long do_ioctl(struct file *filp, unsigned int cmd,
21 unsigned long arg) 20 unsigned long arg)
22{ 21{
23 int error = -ENOTTY; 22 int error = -ENOTTY;
24 void *f;
25 23
26 if (!filp->f_op) 24 if (!filp->f_op)
27 goto out; 25 goto out;
@@ -31,16 +29,10 @@ static long do_ioctl(struct file *filp, unsigned int cmd,
31 if (error == -ENOIOCTLCMD) 29 if (error == -ENOIOCTLCMD)
32 error = -EINVAL; 30 error = -EINVAL;
33 goto out; 31 goto out;
34 } else if ((f = filp->f_op->ioctl)) { 32 } else if (filp->f_op->ioctl) {
35 lock_kernel(); 33 lock_kernel();
36 if (!filp->f_op->ioctl) { 34 error = filp->f_op->ioctl(filp->f_path.dentry->d_inode,
37 printk("%s: ioctl %p disappeared\n", __FUNCTION__, f); 35 filp, cmd, arg);
38 print_symbol("symbol: %s\n", (unsigned long)f);
39 dump_stack();
40 } else {
41 error = filp->f_op->ioctl(filp->f_path.dentry->d_inode,
42 filp, cmd, arg);
43 }
44 unlock_kernel(); 36 unlock_kernel();
45 } 37 }
46 38
@@ -182,11 +174,3 @@ asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
182 out: 174 out:
183 return error; 175 return error;
184} 176}
185
186/*
187 * Platforms implementing 32 bit compatibility ioctl handlers in
188 * modules need this exported
189 */
190#ifdef CONFIG_COMPAT
191EXPORT_SYMBOL(sys_ioctl);
192#endif
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 0e94c31cad9b..1ba407c64df1 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -7,34 +7,18 @@
7 * 7 *
8 * Steve Beynon : Missing last directory entries fixed 8 * Steve Beynon : Missing last directory entries fixed
9 * (stephen@askone.demon.co.uk) : 21st June 1996 9 * (stephen@askone.demon.co.uk) : 21st June 1996
10 * 10 *
11 * isofs directory handling functions 11 * isofs directory handling functions
12 */ 12 */
13#include <linux/smp_lock.h> 13#include <linux/smp_lock.h>
14#include "isofs.h" 14#include "isofs.h"
15 15
16static int isofs_readdir(struct file *, void *, filldir_t);
17
18const struct file_operations isofs_dir_operations =
19{
20 .read = generic_read_dir,
21 .readdir = isofs_readdir,
22};
23
24/*
25 * directories can handle most operations...
26 */
27const struct inode_operations isofs_dir_inode_operations =
28{
29 .lookup = isofs_lookup,
30};
31
32int isofs_name_translate(struct iso_directory_record *de, char *new, struct inode *inode) 16int isofs_name_translate(struct iso_directory_record *de, char *new, struct inode *inode)
33{ 17{
34 char * old = de->name; 18 char * old = de->name;
35 int len = de->name_len[0]; 19 int len = de->name_len[0];
36 int i; 20 int i;
37 21
38 for (i = 0; i < len; i++) { 22 for (i = 0; i < len; i++) {
39 unsigned char c = old[i]; 23 unsigned char c = old[i];
40 if (!c) 24 if (!c)
@@ -62,22 +46,27 @@ int isofs_name_translate(struct iso_directory_record *de, char *new, struct inod
62} 46}
63 47
64/* Acorn extensions written by Matthew Wilcox <willy@bofh.ai> 1998 */ 48/* Acorn extensions written by Matthew Wilcox <willy@bofh.ai> 1998 */
65int get_acorn_filename(struct iso_directory_record * de, 49int get_acorn_filename(struct iso_directory_record *de,
66 char * retname, struct inode * inode) 50 char *retname, struct inode *inode)
67{ 51{
68 int std; 52 int std;
69 unsigned char * chr; 53 unsigned char *chr;
70 int retnamlen = isofs_name_translate(de, retname, inode); 54 int retnamlen = isofs_name_translate(de, retname, inode);
71 if (retnamlen == 0) return 0; 55
56 if (retnamlen == 0)
57 return 0;
72 std = sizeof(struct iso_directory_record) + de->name_len[0]; 58 std = sizeof(struct iso_directory_record) + de->name_len[0];
73 if (std & 1) std++; 59 if (std & 1)
74 if ((*((unsigned char *) de) - std) != 32) return retnamlen; 60 std++;
61 if ((*((unsigned char *) de) - std) != 32)
62 return retnamlen;
75 chr = ((unsigned char *) de) + std; 63 chr = ((unsigned char *) de) + std;
76 if (strncmp(chr, "ARCHIMEDES", 10)) return retnamlen; 64 if (strncmp(chr, "ARCHIMEDES", 10))
77 if ((*retname == '_') && ((chr[19] & 1) == 1)) *retname = '!'; 65 return retnamlen;
66 if ((*retname == '_') && ((chr[19] & 1) == 1))
67 *retname = '!';
78 if (((de->flags[0] & 2) == 0) && (chr[13] == 0xff) 68 if (((de->flags[0] & 2) == 0) && (chr[13] == 0xff)
79 && ((chr[12] & 0xf0) == 0xf0)) 69 && ((chr[12] & 0xf0) == 0xf0)) {
80 {
81 retname[retnamlen] = ','; 70 retname[retnamlen] = ',';
82 sprintf(retname+retnamlen+1, "%3.3x", 71 sprintf(retname+retnamlen+1, "%3.3x",
83 ((chr[12] & 0xf) << 8) | chr[11]); 72 ((chr[12] & 0xf) << 8) | chr[11]);
@@ -91,7 +80,7 @@ int get_acorn_filename(struct iso_directory_record * de,
91 */ 80 */
92static int do_isofs_readdir(struct inode *inode, struct file *filp, 81static int do_isofs_readdir(struct inode *inode, struct file *filp,
93 void *dirent, filldir_t filldir, 82 void *dirent, filldir_t filldir,
94 char * tmpname, struct iso_directory_record * tmpde) 83 char *tmpname, struct iso_directory_record *tmpde)
95{ 84{
96 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode); 85 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
97 unsigned char bufbits = ISOFS_BUFFER_BITS(inode); 86 unsigned char bufbits = ISOFS_BUFFER_BITS(inode);
@@ -121,9 +110,11 @@ static int do_isofs_readdir(struct inode *inode, struct file *filp,
121 110
122 de_len = *(unsigned char *) de; 111 de_len = *(unsigned char *) de;
123 112
124 /* If the length byte is zero, we should move on to the next 113 /*
125 CDROM sector. If we are at the end of the directory, we 114 * If the length byte is zero, we should move on to the next
126 kick out of the while loop. */ 115 * CDROM sector. If we are at the end of the directory, we
116 * kick out of the while loop.
117 */
127 118
128 if (de_len == 0) { 119 if (de_len == 0) {
129 brelse(bh); 120 brelse(bh);
@@ -157,11 +148,10 @@ static int do_isofs_readdir(struct inode *inode, struct file *filp,
157 148
158 if (first_de) { 149 if (first_de) {
159 isofs_normalize_block_and_offset(de, 150 isofs_normalize_block_and_offset(de,
160 &block_saved, 151 &block_saved,
161 &offset_saved); 152 &offset_saved);
162 inode_number = isofs_get_ino(block_saved, 153 inode_number = isofs_get_ino(block_saved,
163 offset_saved, 154 offset_saved, bufbits);
164 bufbits);
165 } 155 }
166 156
167 if (de->flags[-sbi->s_high_sierra] & 0x80) { 157 if (de->flags[-sbi->s_high_sierra] & 0x80) {
@@ -199,7 +189,7 @@ static int do_isofs_readdir(struct inode *inode, struct file *filp,
199 */ 189 */
200 if ((sbi->s_hide == 'y' && 190 if ((sbi->s_hide == 'y' &&
201 (de->flags[-sbi->s_high_sierra] & 1)) || 191 (de->flags[-sbi->s_high_sierra] & 1)) ||
202 (sbi->s_showassoc =='n' && 192 (sbi->s_showassoc =='n' &&
203 (de->flags[-sbi->s_high_sierra] & 4))) { 193 (de->flags[-sbi->s_high_sierra] & 4))) {
204 filp->f_pos += de_len; 194 filp->f_pos += de_len;
205 continue; 195 continue;
@@ -240,7 +230,8 @@ static int do_isofs_readdir(struct inode *inode, struct file *filp,
240 230
241 continue; 231 continue;
242 } 232 }
243 if (bh) brelse(bh); 233 if (bh)
234 brelse(bh);
244 return 0; 235 return 0;
245} 236}
246 237
@@ -253,8 +244,8 @@ static int isofs_readdir(struct file *filp,
253 void *dirent, filldir_t filldir) 244 void *dirent, filldir_t filldir)
254{ 245{
255 int result; 246 int result;
256 char * tmpname; 247 char *tmpname;
257 struct iso_directory_record * tmpde; 248 struct iso_directory_record *tmpde;
258 struct inode *inode = filp->f_path.dentry->d_inode; 249 struct inode *inode = filp->f_path.dentry->d_inode;
259 250
260 tmpname = (char *)__get_free_page(GFP_KERNEL); 251 tmpname = (char *)__get_free_page(GFP_KERNEL);
@@ -270,3 +261,19 @@ static int isofs_readdir(struct file *filp,
270 unlock_kernel(); 261 unlock_kernel();
271 return result; 262 return result;
272} 263}
264
265const struct file_operations isofs_dir_operations =
266{
267 .read = generic_read_dir,
268 .readdir = isofs_readdir,
269};
270
271/*
272 * directories can handle most operations...
273 */
274const struct inode_operations isofs_dir_inode_operations =
275{
276 .lookup = isofs_lookup,
277};
278
279
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 5c3eecf7542e..4f5418be0590 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -73,20 +73,20 @@ static void isofs_destroy_inode(struct inode *inode)
73 kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode)); 73 kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
74} 74}
75 75
76static void init_once(void *foo, struct kmem_cache * cachep, unsigned long flags) 76static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
77{ 77{
78 struct iso_inode_info *ei = foo; 78 struct iso_inode_info *ei = foo;
79 79
80 inode_init_once(&ei->vfs_inode); 80 inode_init_once(&ei->vfs_inode);
81} 81}
82 82
83static int init_inodecache(void) 83static int init_inodecache(void)
84{ 84{
85 isofs_inode_cachep = kmem_cache_create("isofs_inode_cache", 85 isofs_inode_cachep = kmem_cache_create("isofs_inode_cache",
86 sizeof(struct iso_inode_info), 86 sizeof(struct iso_inode_info),
87 0, (SLAB_RECLAIM_ACCOUNT| 87 0, (SLAB_RECLAIM_ACCOUNT|
88 SLAB_MEM_SPREAD), 88 SLAB_MEM_SPREAD),
89 init_once, NULL); 89 init_once, NULL);
90 if (isofs_inode_cachep == NULL) 90 if (isofs_inode_cachep == NULL)
91 return -ENOMEM; 91 return -ENOMEM;
92 return 0; 92 return 0;
@@ -150,9 +150,9 @@ struct iso9660_options{
150 uid_t uid; 150 uid_t uid;
151 char *iocharset; 151 char *iocharset;
152 unsigned char utf8; 152 unsigned char utf8;
153 /* LVE */ 153 /* LVE */
154 s32 session; 154 s32 session;
155 s32 sbsector; 155 s32 sbsector;
156}; 156};
157 157
158/* 158/*
@@ -197,7 +197,7 @@ isofs_hashi_common(struct dentry *dentry, struct qstr *qstr, int ms)
197 hash = init_name_hash(); 197 hash = init_name_hash();
198 while (len--) { 198 while (len--) {
199 c = tolower(*name++); 199 c = tolower(*name++);
200 hash = partial_name_hash(tolower(c), hash); 200 hash = partial_name_hash(c, hash);
201 } 201 }
202 qstr->hash = end_name_hash(hash); 202 qstr->hash = end_name_hash(hash);
203 203
@@ -360,10 +360,12 @@ static int parse_options(char *options, struct iso9660_options *popt)
360 popt->check = 'u'; /* unset */ 360 popt->check = 'u'; /* unset */
361 popt->nocompress = 0; 361 popt->nocompress = 0;
362 popt->blocksize = 1024; 362 popt->blocksize = 1024;
363 popt->mode = S_IRUGO | S_IXUGO; /* r-x for all. The disc could 363 popt->mode = S_IRUGO | S_IXUGO; /*
364 be shared with DOS machines so 364 * r-x for all. The disc could
365 virtually anything could be 365 * be shared with DOS machines so
366 a valid executable. */ 366 * virtually anything could be
367 * a valid executable.
368 */
367 popt->gid = 0; 369 popt->gid = 0;
368 popt->uid = 0; 370 popt->uid = 0;
369 popt->iocharset = NULL; 371 popt->iocharset = NULL;
@@ -503,30 +505,30 @@ static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
503 Te.cdte_format=CDROM_LBA; 505 Te.cdte_format=CDROM_LBA;
504 i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te); 506 i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te);
505 if (!i) { 507 if (!i) {
506 printk(KERN_DEBUG "Session %d start %d type %d\n", 508 printk(KERN_DEBUG "ISOFS: Session %d start %d type %d\n",
507 session, Te.cdte_addr.lba, 509 session, Te.cdte_addr.lba,
508 Te.cdte_ctrl&CDROM_DATA_TRACK); 510 Te.cdte_ctrl&CDROM_DATA_TRACK);
509 if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4) 511 if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4)
510 return Te.cdte_addr.lba; 512 return Te.cdte_addr.lba;
511 } 513 }
512 514
513 printk(KERN_ERR "Invalid session number or type of track\n"); 515 printk(KERN_ERR "ISOFS: Invalid session number or type of track\n");
514 } 516 }
515 i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info); 517 i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
516 if (session > 0) 518 if (session > 0)
517 printk(KERN_ERR "Invalid session number\n"); 519 printk(KERN_ERR "ISOFS: Invalid session number\n");
518#if 0 520#if 0
519 printk("isofs.inode: CDROMMULTISESSION: rc=%d\n",i); 521 printk(KERN_DEBUG "isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
520 if (i==0) { 522 if (i==0) {
521 printk("isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no"); 523 printk(KERN_DEBUG "isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no");
522 printk("isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba); 524 printk(KERN_DEBUG "isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba);
523 } 525 }
524#endif 526#endif
525 if (i==0) 527 if (i==0)
526#if WE_OBEY_THE_WRITTEN_STANDARDS 528#if WE_OBEY_THE_WRITTEN_STANDARDS
527 if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */ 529 if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */
528#endif 530#endif
529 vol_desc_start=ms_info.addr.lba; 531 vol_desc_start=ms_info.addr.lba;
530 return vol_desc_start; 532 return vol_desc_start;
531} 533}
532 534
@@ -538,20 +540,20 @@ static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
538 */ 540 */
539static int isofs_fill_super(struct super_block *s, void *data, int silent) 541static int isofs_fill_super(struct super_block *s, void *data, int silent)
540{ 542{
541 struct buffer_head * bh = NULL, *pri_bh = NULL; 543 struct buffer_head *bh = NULL, *pri_bh = NULL;
542 struct hs_primary_descriptor * h_pri = NULL; 544 struct hs_primary_descriptor *h_pri = NULL;
543 struct iso_primary_descriptor * pri = NULL; 545 struct iso_primary_descriptor *pri = NULL;
544 struct iso_supplementary_descriptor *sec = NULL; 546 struct iso_supplementary_descriptor *sec = NULL;
545 struct iso_directory_record * rootp; 547 struct iso_directory_record *rootp;
546 int joliet_level = 0; 548 struct inode *inode;
547 int iso_blknum, block; 549 struct iso9660_options opt;
548 int orig_zonesize; 550 struct isofs_sb_info *sbi;
549 int table; 551 unsigned long first_data_zone;
550 unsigned int vol_desc_start; 552 int joliet_level = 0;
551 unsigned long first_data_zone; 553 int iso_blknum, block;
552 struct inode * inode; 554 int orig_zonesize;
553 struct iso9660_options opt; 555 int table;
554 struct isofs_sb_info * sbi; 556 unsigned int vol_desc_start;
555 557
556 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); 558 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
557 if (!sbi) 559 if (!sbi)
@@ -577,72 +579,73 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
577 vol_desc_start = (opt.sbsector != -1) ? 579 vol_desc_start = (opt.sbsector != -1) ?
578 opt.sbsector : isofs_get_last_session(s,opt.session); 580 opt.sbsector : isofs_get_last_session(s,opt.session);
579 581
580 for (iso_blknum = vol_desc_start+16; 582 for (iso_blknum = vol_desc_start+16;
581 iso_blknum < vol_desc_start+100; iso_blknum++) 583 iso_blknum < vol_desc_start+100; iso_blknum++) {
582 { 584 struct hs_volume_descriptor *hdp;
583 struct hs_volume_descriptor * hdp; 585 struct iso_volume_descriptor *vdp;
584 struct iso_volume_descriptor * vdp; 586
585 587 block = iso_blknum << (ISOFS_BLOCK_BITS - s->s_blocksize_bits);
586 block = iso_blknum << (ISOFS_BLOCK_BITS - s->s_blocksize_bits); 588 if (!(bh = sb_bread(s, block)))
587 if (!(bh = sb_bread(s, block))) 589 goto out_no_read;
588 goto out_no_read; 590
589 591 vdp = (struct iso_volume_descriptor *)bh->b_data;
590 vdp = (struct iso_volume_descriptor *)bh->b_data; 592 hdp = (struct hs_volume_descriptor *)bh->b_data;
591 hdp = (struct hs_volume_descriptor *)bh->b_data; 593
592 594 /*
593 /* Due to the overlapping physical location of the descriptors, 595 * Due to the overlapping physical location of the descriptors,
594 * ISO CDs can match hdp->id==HS_STANDARD_ID as well. To ensure 596 * ISO CDs can match hdp->id==HS_STANDARD_ID as well. To ensure
595 * proper identification in this case, we first check for ISO. 597 * proper identification in this case, we first check for ISO.
596 */ 598 */
597 if (strncmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) == 0) { 599 if (strncmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) == 0) {
598 if (isonum_711 (vdp->type) == ISO_VD_END) 600 if (isonum_711(vdp->type) == ISO_VD_END)
599 break; 601 break;
600 if (isonum_711 (vdp->type) == ISO_VD_PRIMARY) { 602 if (isonum_711(vdp->type) == ISO_VD_PRIMARY) {
601 if (pri == NULL) { 603 if (pri == NULL) {
602 pri = (struct iso_primary_descriptor *)vdp; 604 pri = (struct iso_primary_descriptor *)vdp;
603 /* Save the buffer in case we need it ... */ 605 /* Save the buffer in case we need it ... */
604 pri_bh = bh; 606 pri_bh = bh;
605 bh = NULL; 607 bh = NULL;
606 } 608 }
607 } 609 }
608#ifdef CONFIG_JOLIET 610#ifdef CONFIG_JOLIET
609 else if (isonum_711 (vdp->type) == ISO_VD_SUPPLEMENTARY) { 611 else if (isonum_711(vdp->type) == ISO_VD_SUPPLEMENTARY) {
610 sec = (struct iso_supplementary_descriptor *)vdp; 612 sec = (struct iso_supplementary_descriptor *)vdp;
611 if (sec->escape[0] == 0x25 && sec->escape[1] == 0x2f) { 613 if (sec->escape[0] == 0x25 && sec->escape[1] == 0x2f) {
612 if (opt.joliet == 'y') { 614 if (opt.joliet == 'y') {
613 if (sec->escape[2] == 0x40) { 615 if (sec->escape[2] == 0x40)
614 joliet_level = 1; 616 joliet_level = 1;
615 } else if (sec->escape[2] == 0x43) { 617 else if (sec->escape[2] == 0x43)
616 joliet_level = 2; 618 joliet_level = 2;
617 } else if (sec->escape[2] == 0x45) { 619 else if (sec->escape[2] == 0x45)
618 joliet_level = 3; 620 joliet_level = 3;
619 } 621
620 printk(KERN_DEBUG"ISO 9660 Extensions: Microsoft Joliet Level %d\n", 622 printk(KERN_DEBUG "ISO 9660 Extensions: "
621 joliet_level); 623 "Microsoft Joliet Level %d\n",
624 joliet_level);
625 }
626 goto root_found;
627 } else {
628 /* Unknown supplementary volume descriptor */
629 sec = NULL;
630 }
622 } 631 }
623 goto root_found;
624 } else {
625 /* Unknown supplementary volume descriptor */
626 sec = NULL;
627 }
628 }
629#endif 632#endif
630 } else { 633 } else {
631 if (strncmp (hdp->id, HS_STANDARD_ID, sizeof hdp->id) == 0) { 634 if (strncmp (hdp->id, HS_STANDARD_ID, sizeof hdp->id) == 0) {
632 if (isonum_711 (hdp->type) != ISO_VD_PRIMARY) 635 if (isonum_711(hdp->type) != ISO_VD_PRIMARY)
633 goto out_freebh; 636 goto out_freebh;
634 637
635 sbi->s_high_sierra = 1; 638 sbi->s_high_sierra = 1;
636 opt.rock = 'n'; 639 opt.rock = 'n';
637 h_pri = (struct hs_primary_descriptor *)vdp; 640 h_pri = (struct hs_primary_descriptor *)vdp;
638 goto root_found; 641 goto root_found;
642 }
639 } 643 }
640 }
641 644
642 /* Just skip any volume descriptors we don't recognize */ 645 /* Just skip any volume descriptors we don't recognize */
643 646
644 brelse(bh); 647 brelse(bh);
645 bh = NULL; 648 bh = NULL;
646 } 649 }
647 /* 650 /*
648 * If we fall through, either no volume descriptor was found, 651 * If we fall through, either no volume descriptor was found,
@@ -657,24 +660,24 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
657root_found: 660root_found:
658 661
659 if (joliet_level && (pri == NULL || opt.rock == 'n')) { 662 if (joliet_level && (pri == NULL || opt.rock == 'n')) {
660 /* This is the case of Joliet with the norock mount flag. 663 /* This is the case of Joliet with the norock mount flag.
661 * A disc with both Joliet and Rock Ridge is handled later 664 * A disc with both Joliet and Rock Ridge is handled later
662 */ 665 */
663 pri = (struct iso_primary_descriptor *) sec; 666 pri = (struct iso_primary_descriptor *) sec;
664 } 667 }
665 668
666 if(sbi->s_high_sierra){ 669 if(sbi->s_high_sierra){
667 rootp = (struct iso_directory_record *) h_pri->root_directory_record; 670 rootp = (struct iso_directory_record *) h_pri->root_directory_record;
668 sbi->s_nzones = isonum_733 (h_pri->volume_space_size); 671 sbi->s_nzones = isonum_733(h_pri->volume_space_size);
669 sbi->s_log_zone_size = isonum_723 (h_pri->logical_block_size); 672 sbi->s_log_zone_size = isonum_723(h_pri->logical_block_size);
670 sbi->s_max_size = isonum_733(h_pri->volume_space_size); 673 sbi->s_max_size = isonum_733(h_pri->volume_space_size);
671 } else { 674 } else {
672 if (!pri) 675 if (!pri)
673 goto out_freebh; 676 goto out_freebh;
674 rootp = (struct iso_directory_record *) pri->root_directory_record; 677 rootp = (struct iso_directory_record *) pri->root_directory_record;
675 sbi->s_nzones = isonum_733 (pri->volume_space_size); 678 sbi->s_nzones = isonum_733(pri->volume_space_size);
676 sbi->s_log_zone_size = isonum_723 (pri->logical_block_size); 679 sbi->s_log_zone_size = isonum_723(pri->logical_block_size);
677 sbi->s_max_size = isonum_733(pri->volume_space_size); 680 sbi->s_max_size = isonum_733(pri->volume_space_size);
678 } 681 }
679 682
680 sbi->s_ninodes = 0; /* No way to figure this out easily */ 683 sbi->s_ninodes = 0; /* No way to figure this out easily */
@@ -687,42 +690,43 @@ root_found:
687 * blocks that were 512 bytes (which should only very rarely 690 * blocks that were 512 bytes (which should only very rarely
688 * happen.) 691 * happen.)
689 */ 692 */
690 if(orig_zonesize < opt.blocksize) 693 if (orig_zonesize < opt.blocksize)
691 goto out_bad_size; 694 goto out_bad_size;
692 695
693 /* RDE: convert log zone size to bit shift */ 696 /* RDE: convert log zone size to bit shift */
694 switch (sbi->s_log_zone_size) 697 switch (sbi->s_log_zone_size) {
695 { case 512: sbi->s_log_zone_size = 9; break; 698 case 512: sbi->s_log_zone_size = 9; break;
696 case 1024: sbi->s_log_zone_size = 10; break; 699 case 1024: sbi->s_log_zone_size = 10; break;
697 case 2048: sbi->s_log_zone_size = 11; break; 700 case 2048: sbi->s_log_zone_size = 11; break;
698 701
699 default: 702 default:
700 goto out_bad_zone_size; 703 goto out_bad_zone_size;
701 } 704 }
702 705
703 s->s_magic = ISOFS_SUPER_MAGIC; 706 s->s_magic = ISOFS_SUPER_MAGIC;
704 s->s_maxbytes = 0xffffffff; /* We can handle files up to 4 GB */ 707 s->s_maxbytes = 0xffffffff; /* We can handle files up to 4 GB */
705 708
706 /* The CDROM is read-only, has no nodes (devices) on it, and since 709 /*
707 all of the files appear to be owned by root, we really do not want 710 * The CDROM is read-only, has no nodes (devices) on it, and since
708 to allow suid. (suid or devices will not show up unless we have 711 * all of the files appear to be owned by root, we really do not want
709 Rock Ridge extensions) */ 712 * to allow suid. (suid or devices will not show up unless we have
713 * Rock Ridge extensions)
714 */
710 715
711 s->s_flags |= MS_RDONLY /* | MS_NODEV | MS_NOSUID */; 716 s->s_flags |= MS_RDONLY /* | MS_NODEV | MS_NOSUID */;
712 717
713 /* Set this for reference. Its not currently used except on write 718 /* Set this for reference. Its not currently used except on write
714 which we don't have .. */ 719 which we don't have .. */
715 720
716 first_data_zone = isonum_733 (rootp->extent) + 721 first_data_zone = isonum_733(rootp->extent) +
717 isonum_711 (rootp->ext_attr_length); 722 isonum_711(rootp->ext_attr_length);
718 sbi->s_firstdatazone = first_data_zone; 723 sbi->s_firstdatazone = first_data_zone;
719#ifndef BEQUIET 724#ifndef BEQUIET
720 printk(KERN_DEBUG "Max size:%ld Log zone size:%ld\n", 725 printk(KERN_DEBUG "ISOFS: Max size:%ld Log zone size:%ld\n",
721 sbi->s_max_size, 726 sbi->s_max_size, 1UL << sbi->s_log_zone_size);
722 1UL << sbi->s_log_zone_size); 727 printk(KERN_DEBUG "ISOFS: First datazone:%ld\n", sbi->s_firstdatazone);
723 printk(KERN_DEBUG "First datazone:%ld\n", sbi->s_firstdatazone);
724 if(sbi->s_high_sierra) 728 if(sbi->s_high_sierra)
725 printk(KERN_DEBUG "Disc in High Sierra format.\n"); 729 printk(KERN_DEBUG "ISOFS: Disc in High Sierra format.\n");
726#endif 730#endif
727 731
728 /* 732 /*
@@ -737,8 +741,8 @@ root_found:
737 pri = (struct iso_primary_descriptor *) sec; 741 pri = (struct iso_primary_descriptor *) sec;
738 rootp = (struct iso_directory_record *) 742 rootp = (struct iso_directory_record *)
739 pri->root_directory_record; 743 pri->root_directory_record;
740 first_data_zone = isonum_733 (rootp->extent) + 744 first_data_zone = isonum_733(rootp->extent) +
741 isonum_711 (rootp->ext_attr_length); 745 isonum_711(rootp->ext_attr_length);
742 } 746 }
743 747
744 /* 748 /*
@@ -771,7 +775,7 @@ root_found:
771 775
772#ifdef CONFIG_JOLIET 776#ifdef CONFIG_JOLIET
773 if (joliet_level && opt.utf8 == 0) { 777 if (joliet_level && opt.utf8 == 0) {
774 char * p = opt.iocharset ? opt.iocharset : CONFIG_NLS_DEFAULT; 778 char *p = opt.iocharset ? opt.iocharset : CONFIG_NLS_DEFAULT;
775 sbi->s_nls_iocharset = load_nls(p); 779 sbi->s_nls_iocharset = load_nls(p);
776 if (! sbi->s_nls_iocharset) { 780 if (! sbi->s_nls_iocharset) {
777 /* Fail only if explicit charset specified */ 781 /* Fail only if explicit charset specified */
@@ -821,7 +825,7 @@ root_found:
821 sbi->s_rock = 0; 825 sbi->s_rock = 0;
822 if (sbi->s_firstdatazone != first_data_zone) { 826 if (sbi->s_firstdatazone != first_data_zone) {
823 sbi->s_firstdatazone = first_data_zone; 827 sbi->s_firstdatazone = first_data_zone;
824 printk(KERN_DEBUG 828 printk(KERN_DEBUG
825 "ISOFS: changing to secondary root\n"); 829 "ISOFS: changing to secondary root\n");
826 iput(inode); 830 iput(inode);
827 inode = isofs_iget(s, sbi->s_firstdatazone, 0); 831 inode = isofs_iget(s, sbi->s_firstdatazone, 0);
@@ -830,8 +834,10 @@ root_found:
830 834
831 if (opt.check == 'u') { 835 if (opt.check == 'u') {
832 /* Only Joliet is case insensitive by default */ 836 /* Only Joliet is case insensitive by default */
833 if (joliet_level) opt.check = 'r'; 837 if (joliet_level)
834 else opt.check = 's'; 838 opt.check = 'r';
839 else
840 opt.check = 's';
835 } 841 }
836 sbi->s_joliet_level = joliet_level; 842 sbi->s_joliet_level = joliet_level;
837 843
@@ -846,8 +852,10 @@ root_found:
846 goto out_no_root; 852 goto out_no_root;
847 853
848 table = 0; 854 table = 0;
849 if (joliet_level) table += 2; 855 if (joliet_level)
850 if (opt.check == 'r') table++; 856 table += 2;
857 if (opt.check == 'r')
858 table++;
851 s->s_root->d_op = &isofs_dentry_ops[table]; 859 s->s_root->d_op = &isofs_dentry_ops[table];
852 860
853 kfree(opt.iocharset); 861 kfree(opt.iocharset);
@@ -858,10 +866,10 @@ root_found:
858 * Display error messages and free resources. 866 * Display error messages and free resources.
859 */ 867 */
860out_bad_root: 868out_bad_root:
861 printk(KERN_WARNING "isofs_fill_super: root inode not initialized\n"); 869 printk(KERN_WARNING "%s: root inode not initialized\n", __func__);
862 goto out_iput; 870 goto out_iput;
863out_no_root: 871out_no_root:
864 printk(KERN_WARNING "isofs_fill_super: get root inode failed\n"); 872 printk(KERN_WARNING "%s: get root inode failed\n", __func__);
865out_iput: 873out_iput:
866 iput(inode); 874 iput(inode);
867#ifdef CONFIG_JOLIET 875#ifdef CONFIG_JOLIET
@@ -870,21 +878,20 @@ out_iput:
870#endif 878#endif
871 goto out_freesbi; 879 goto out_freesbi;
872out_no_read: 880out_no_read:
873 printk(KERN_WARNING "isofs_fill_super: " 881 printk(KERN_WARNING "%s: bread failed, dev=%s, iso_blknum=%d, block=%d\n",
874 "bread failed, dev=%s, iso_blknum=%d, block=%d\n", 882 __func__, s->s_id, iso_blknum, block);
875 s->s_id, iso_blknum, block);
876 goto out_freesbi; 883 goto out_freesbi;
877out_bad_zone_size: 884out_bad_zone_size:
878 printk(KERN_WARNING "Bad logical zone size %ld\n", 885 printk(KERN_WARNING "ISOFS: Bad logical zone size %ld\n",
879 sbi->s_log_zone_size); 886 sbi->s_log_zone_size);
880 goto out_freebh; 887 goto out_freebh;
881out_bad_size: 888out_bad_size:
882 printk(KERN_WARNING "Logical zone size(%d) < hardware blocksize(%u)\n", 889 printk(KERN_WARNING "ISOFS: Logical zone size(%d) < hardware blocksize(%u)\n",
883 orig_zonesize, opt.blocksize); 890 orig_zonesize, opt.blocksize);
884 goto out_freebh; 891 goto out_freebh;
885out_unknown_format: 892out_unknown_format:
886 if (!silent) 893 if (!silent)
887 printk(KERN_WARNING "Unable to identify CD-ROM format.\n"); 894 printk(KERN_WARNING "ISOFS: Unable to identify CD-ROM format.\n");
888 895
889out_freebh: 896out_freebh:
890 brelse(bh); 897 brelse(bh);
@@ -902,7 +909,7 @@ static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
902 buf->f_type = ISOFS_SUPER_MAGIC; 909 buf->f_type = ISOFS_SUPER_MAGIC;
903 buf->f_bsize = sb->s_blocksize; 910 buf->f_bsize = sb->s_blocksize;
904 buf->f_blocks = (ISOFS_SB(sb)->s_nzones 911 buf->f_blocks = (ISOFS_SB(sb)->s_nzones
905 << (ISOFS_SB(sb)->s_log_zone_size - sb->s_blocksize_bits)); 912 << (ISOFS_SB(sb)->s_log_zone_size - sb->s_blocksize_bits));
906 buf->f_bfree = 0; 913 buf->f_bfree = 0;
907 buf->f_bavail = 0; 914 buf->f_bavail = 0;
908 buf->f_files = ISOFS_SB(sb)->s_ninodes; 915 buf->f_files = ISOFS_SB(sb)->s_ninodes;
@@ -931,20 +938,20 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
931 938
932 rv = 0; 939 rv = 0;
933 if (iblock < 0 || iblock != iblock_s) { 940 if (iblock < 0 || iblock != iblock_s) {
934 printk("isofs_get_blocks: block number too large\n"); 941 printk(KERN_DEBUG "%s: block number too large\n", __func__);
935 goto abort; 942 goto abort;
936 } 943 }
937 944
938 b_off = iblock; 945 b_off = iblock;
939 946
940 offset = 0; 947 offset = 0;
941 firstext = ei->i_first_extent; 948 firstext = ei->i_first_extent;
942 sect_size = ei->i_section_size >> ISOFS_BUFFER_BITS(inode); 949 sect_size = ei->i_section_size >> ISOFS_BUFFER_BITS(inode);
943 nextblk = ei->i_next_section_block; 950 nextblk = ei->i_next_section_block;
944 nextoff = ei->i_next_section_offset; 951 nextoff = ei->i_next_section_offset;
945 section = 0; 952 section = 0;
946 953
947 while ( nblocks ) { 954 while (nblocks) {
948 /* If we are *way* beyond the end of the file, print a message. 955 /* If we are *way* beyond the end of the file, print a message.
949 * Access beyond the end of the file up to the next page boundary 956 * Access beyond the end of the file up to the next page boundary
950 * is normal, however because of the way the page cache works. 957 * is normal, however because of the way the page cache works.
@@ -953,11 +960,11 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
953 * I/O errors. 960 * I/O errors.
954 */ 961 */
955 if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) { 962 if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
956 printk("isofs_get_blocks: block >= EOF (%ld, %ld)\n", 963 printk(KERN_DEBUG "%s: block >= EOF (%ld, %ld)\n",
957 iblock, (unsigned long) inode->i_size); 964 __func__, iblock, (unsigned long) inode->i_size);
958 goto abort; 965 goto abort;
959 } 966 }
960 967
961 /* On the last section, nextblk == 0, section size is likely to 968 /* On the last section, nextblk == 0, section size is likely to
962 * exceed sect_size by a partial block, and access beyond the 969 * exceed sect_size by a partial block, and access beyond the
963 * end of the file will reach beyond the section size, too. 970 * end of the file will reach beyond the section size, too.
@@ -976,20 +983,21 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
976 iput(ninode); 983 iput(ninode);
977 984
978 if (++section > 100) { 985 if (++section > 100) {
979 printk("isofs_get_blocks: More than 100 file sections ?!?, aborting...\n"); 986 printk(KERN_DEBUG "%s: More than 100 file sections ?!?"
980 printk("isofs_get_blocks: block=%ld firstext=%u sect_size=%u " 987 " aborting...\n", __func__);
981 "nextblk=%lu nextoff=%lu\n", 988 printk(KERN_DEBUG "%s: block=%ld firstext=%u sect_size=%u "
982 iblock, firstext, (unsigned) sect_size, 989 "nextblk=%lu nextoff=%lu\n", __func__,
983 nextblk, nextoff); 990 iblock, firstext, (unsigned) sect_size,
991 nextblk, nextoff);
984 goto abort; 992 goto abort;
985 } 993 }
986 } 994 }
987 995
988 if ( *bh ) { 996 if (*bh) {
989 map_bh(*bh, inode->i_sb, firstext + b_off - offset); 997 map_bh(*bh, inode->i_sb, firstext + b_off - offset);
990 } else { 998 } else {
991 *bh = sb_getblk(inode->i_sb, firstext+b_off-offset); 999 *bh = sb_getblk(inode->i_sb, firstext+b_off-offset);
992 if ( !*bh ) 1000 if (!*bh)
993 goto abort; 1001 goto abort;
994 } 1002 }
995 bh++; /* Next buffer head */ 1003 bh++; /* Next buffer head */
@@ -1010,7 +1018,7 @@ static int isofs_get_block(struct inode *inode, sector_t iblock,
1010 struct buffer_head *bh_result, int create) 1018 struct buffer_head *bh_result, int create)
1011{ 1019{
1012 if (create) { 1020 if (create) {
1013 printk("isofs_get_block: Kernel tries to allocate a block\n"); 1021 printk(KERN_DEBUG "%s: Kernel tries to allocate a block\n", __func__);
1014 return -EROFS; 1022 return -EROFS;
1015 } 1023 }
1016 1024
@@ -1070,11 +1078,11 @@ static int isofs_read_level3_size(struct inode *inode)
1070{ 1078{
1071 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode); 1079 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
1072 int high_sierra = ISOFS_SB(inode->i_sb)->s_high_sierra; 1080 int high_sierra = ISOFS_SB(inode->i_sb)->s_high_sierra;
1073 struct buffer_head * bh = NULL; 1081 struct buffer_head *bh = NULL;
1074 unsigned long block, offset, block_saved, offset_saved; 1082 unsigned long block, offset, block_saved, offset_saved;
1075 int i = 0; 1083 int i = 0;
1076 int more_entries = 0; 1084 int more_entries = 0;
1077 struct iso_directory_record * tmpde = NULL; 1085 struct iso_directory_record *tmpde = NULL;
1078 struct iso_inode_info *ei = ISOFS_I(inode); 1086 struct iso_inode_info *ei = ISOFS_I(inode);
1079 1087
1080 inode->i_size = 0; 1088 inode->i_size = 0;
@@ -1089,7 +1097,7 @@ static int isofs_read_level3_size(struct inode *inode)
1089 offset = ei->i_iget5_offset; 1097 offset = ei->i_iget5_offset;
1090 1098
1091 do { 1099 do {
1092 struct iso_directory_record * de; 1100 struct iso_directory_record *de;
1093 unsigned int de_len; 1101 unsigned int de_len;
1094 1102
1095 if (!bh) { 1103 if (!bh) {
@@ -1163,10 +1171,9 @@ out_noread:
1163 return -EIO; 1171 return -EIO;
1164 1172
1165out_toomany: 1173out_toomany:
1166 printk(KERN_INFO "isofs_read_level3_size: " 1174 printk(KERN_INFO "%s: More than 100 file sections ?!?, aborting...\n"
1167 "More than 100 file sections ?!?, aborting...\n" 1175 "isofs_read_level3_size: inode=%lu\n",
1168 "isofs_read_level3_size: inode=%lu\n", 1176 __func__, inode->i_ino);
1169 inode->i_ino);
1170 goto out; 1177 goto out;
1171} 1178}
1172 1179
@@ -1177,9 +1184,9 @@ static void isofs_read_inode(struct inode *inode)
1177 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode); 1184 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
1178 unsigned long block; 1185 unsigned long block;
1179 int high_sierra = sbi->s_high_sierra; 1186 int high_sierra = sbi->s_high_sierra;
1180 struct buffer_head * bh = NULL; 1187 struct buffer_head *bh = NULL;
1181 struct iso_directory_record * de; 1188 struct iso_directory_record *de;
1182 struct iso_directory_record * tmpde = NULL; 1189 struct iso_directory_record *tmpde = NULL;
1183 unsigned int de_len; 1190 unsigned int de_len;
1184 unsigned long offset; 1191 unsigned long offset;
1185 struct iso_inode_info *ei = ISOFS_I(inode); 1192 struct iso_inode_info *ei = ISOFS_I(inode);
@@ -1199,7 +1206,7 @@ static void isofs_read_inode(struct inode *inode)
1199 1206
1200 tmpde = kmalloc(de_len, GFP_KERNEL); 1207 tmpde = kmalloc(de_len, GFP_KERNEL);
1201 if (tmpde == NULL) { 1208 if (tmpde == NULL) {
1202 printk(KERN_INFO "isofs_read_inode: out of memory\n"); 1209 printk(KERN_INFO "%s: out of memory\n", __func__);
1203 goto fail; 1210 goto fail;
1204 } 1211 }
1205 memcpy(tmpde, bh->b_data + offset, frag1); 1212 memcpy(tmpde, bh->b_data + offset, frag1);
@@ -1212,24 +1219,26 @@ static void isofs_read_inode(struct inode *inode)
1212 } 1219 }
1213 1220
1214 inode->i_ino = isofs_get_ino(ei->i_iget5_block, 1221 inode->i_ino = isofs_get_ino(ei->i_iget5_block,
1215 ei->i_iget5_offset, 1222 ei->i_iget5_offset,
1216 ISOFS_BUFFER_BITS(inode)); 1223 ISOFS_BUFFER_BITS(inode));
1217 1224
1218 /* Assume it is a normal-format file unless told otherwise */ 1225 /* Assume it is a normal-format file unless told otherwise */
1219 ei->i_file_format = isofs_file_normal; 1226 ei->i_file_format = isofs_file_normal;
1220 1227
1221 if (de->flags[-high_sierra] & 2) { 1228 if (de->flags[-high_sierra] & 2) {
1222 inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR; 1229 inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
1223 inode->i_nlink = 1; /* Set to 1. We know there are 2, but 1230 inode->i_nlink = 1; /*
1224 the find utility tries to optimize 1231 * Set to 1. We know there are 2, but
1225 if it is 2, and it screws up. It is 1232 * the find utility tries to optimize
1226 easier to give 1 which tells find to 1233 * if it is 2, and it screws up. It is
1227 do it the hard way. */ 1234 * easier to give 1 which tells find to
1235 * do it the hard way.
1236 */
1228 } else { 1237 } else {
1229 /* Everybody gets to read the file. */ 1238 /* Everybody gets to read the file. */
1230 inode->i_mode = sbi->s_mode; 1239 inode->i_mode = sbi->s_mode;
1231 inode->i_nlink = 1; 1240 inode->i_nlink = 1;
1232 inode->i_mode |= S_IFREG; 1241 inode->i_mode |= S_IFREG;
1233 } 1242 }
1234 inode->i_uid = sbi->s_uid; 1243 inode->i_uid = sbi->s_uid;
1235 inode->i_gid = sbi->s_gid; 1244 inode->i_gid = sbi->s_gid;
@@ -1239,13 +1248,14 @@ static void isofs_read_inode(struct inode *inode)
1239 ei->i_format_parm[1] = 0; 1248 ei->i_format_parm[1] = 0;
1240 ei->i_format_parm[2] = 0; 1249 ei->i_format_parm[2] = 0;
1241 1250
1242 ei->i_section_size = isonum_733 (de->size); 1251 ei->i_section_size = isonum_733(de->size);
1243 if (de->flags[-high_sierra] & 0x80) { 1252 if (de->flags[-high_sierra] & 0x80) {
1244 if(isofs_read_level3_size(inode)) goto fail; 1253 if(isofs_read_level3_size(inode))
1254 goto fail;
1245 } else { 1255 } else {
1246 ei->i_next_section_block = 0; 1256 ei->i_next_section_block = 0;
1247 ei->i_next_section_offset = 0; 1257 ei->i_next_section_offset = 0;
1248 inode->i_size = isonum_733 (de->size); 1258 inode->i_size = isonum_733(de->size);
1249 } 1259 }
1250 1260
1251 /* 1261 /*
@@ -1258,23 +1268,24 @@ static void isofs_read_inode(struct inode *inode)
1258 inode->i_size &= 0x00ffffff; 1268 inode->i_size &= 0x00ffffff;
1259 1269
1260 if (de->interleave[0]) { 1270 if (de->interleave[0]) {
1261 printk("Interleaved files not (yet) supported.\n"); 1271 printk(KERN_DEBUG "ISOFS: Interleaved files not (yet) supported.\n");
1262 inode->i_size = 0; 1272 inode->i_size = 0;
1263 } 1273 }
1264 1274
1265 /* I have no idea what file_unit_size is used for, so 1275 /* I have no idea what file_unit_size is used for, so
1266 we will flag it for now */ 1276 we will flag it for now */
1267 if (de->file_unit_size[0] != 0) { 1277 if (de->file_unit_size[0] != 0) {
1268 printk("File unit size != 0 for ISO file (%ld).\n", 1278 printk(KERN_DEBUG "ISOFS: File unit size != 0 for ISO file (%ld).\n",
1269 inode->i_ino); 1279 inode->i_ino);
1270 } 1280 }
1271 1281
1272 /* I have no idea what other flag bits are used for, so 1282 /* I have no idea what other flag bits are used for, so
1273 we will flag it for now */ 1283 we will flag it for now */
1274#ifdef DEBUG 1284#ifdef DEBUG
1275 if((de->flags[-high_sierra] & ~2)!= 0){ 1285 if((de->flags[-high_sierra] & ~2)!= 0){
1276 printk("Unusual flag settings for ISO file (%ld %x).\n", 1286 printk(KERN_DEBUG "ISOFS: Unusual flag settings for ISO file "
1277 inode->i_ino, de->flags[-high_sierra]); 1287 "(%ld %x).\n",
1288 inode->i_ino, de->flags[-high_sierra]);
1278 } 1289 }
1279#endif 1290#endif
1280 1291
@@ -1285,11 +1296,11 @@ static void isofs_read_inode(struct inode *inode)
1285 inode->i_atime.tv_nsec = 1296 inode->i_atime.tv_nsec =
1286 inode->i_ctime.tv_nsec = 0; 1297 inode->i_ctime.tv_nsec = 0;
1287 1298
1288 ei->i_first_extent = (isonum_733 (de->extent) + 1299 ei->i_first_extent = (isonum_733(de->extent) +
1289 isonum_711 (de->ext_attr_length)); 1300 isonum_711(de->ext_attr_length));
1290 1301
1291 /* Set the number of blocks for stat() - should be done before RR */ 1302 /* Set the number of blocks for stat() - should be done before RR */
1292 inode->i_blocks = (inode->i_size + 511) >> 9; 1303 inode->i_blocks = (inode->i_size + 511) >> 9;
1293 1304
1294 /* 1305 /*
1295 * Now test for possible Rock Ridge extensions which will override 1306 * Now test for possible Rock Ridge extensions which will override
@@ -1306,7 +1317,7 @@ static void isofs_read_inode(struct inode *inode)
1306 /* Install the inode operations vector */ 1317 /* Install the inode operations vector */
1307 if (S_ISREG(inode->i_mode)) { 1318 if (S_ISREG(inode->i_mode)) {
1308 inode->i_fop = &generic_ro_fops; 1319 inode->i_fop = &generic_ro_fops;
1309 switch ( ei->i_file_format ) { 1320 switch (ei->i_file_format) {
1310#ifdef CONFIG_ZISOFS 1321#ifdef CONFIG_ZISOFS
1311 case isofs_file_compressed: 1322 case isofs_file_compressed:
1312 inode->i_data.a_ops = &zisofs_aops; 1323 inode->i_data.a_ops = &zisofs_aops;
@@ -1350,7 +1361,7 @@ static int isofs_iget5_test(struct inode *ino, void *data)
1350 struct isofs_iget5_callback_data *d = 1361 struct isofs_iget5_callback_data *d =
1351 (struct isofs_iget5_callback_data*)data; 1362 (struct isofs_iget5_callback_data*)data;
1352 return (i->i_iget5_block == d->block) 1363 return (i->i_iget5_block == d->block)
1353 && (i->i_iget5_offset == d->offset); 1364 && (i->i_iget5_offset == d->offset);
1354} 1365}
1355 1366
1356static int isofs_iget5_set(struct inode *ino, void *data) 1367static int isofs_iget5_set(struct inode *ino, void *data)
@@ -1384,7 +1395,7 @@ struct inode *isofs_iget(struct super_block *sb,
1384 hashval = (block << sb->s_blocksize_bits) | offset; 1395 hashval = (block << sb->s_blocksize_bits) | offset;
1385 1396
1386 inode = iget5_locked(sb, hashval, &isofs_iget5_test, 1397 inode = iget5_locked(sb, hashval, &isofs_iget5_test,
1387 &isofs_iget5_set, &data); 1398 &isofs_iget5_set, &data);
1388 1399
1389 if (inode && (inode->i_state & I_NEW)) { 1400 if (inode && (inode->i_state & I_NEW)) {
1390 sb->s_op->read_inode(inode); 1401 sb->s_op->read_inode(inode);
@@ -1398,7 +1409,7 @@ static int isofs_get_sb(struct file_system_type *fs_type,
1398 int flags, const char *dev_name, void *data, struct vfsmount *mnt) 1409 int flags, const char *dev_name, void *data, struct vfsmount *mnt)
1399{ 1410{
1400 return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super, 1411 return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super,
1401 mnt); 1412 mnt);
1402} 1413}
1403 1414
1404static struct file_system_type iso9660_fs_type = { 1415static struct file_system_type iso9660_fs_type = {
diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c
index fb8fe7a9ddc6..92c14b850e9c 100644
--- a/fs/isofs/joliet.c
+++ b/fs/isofs/joliet.c
@@ -80,22 +80,20 @@ get_joliet_filename(struct iso_directory_record * de, unsigned char *outname, st
80 80
81 if (utf8) { 81 if (utf8) {
82 len = wcsntombs_be(outname, de->name, 82 len = wcsntombs_be(outname, de->name,
83 de->name_len[0] >> 1, PAGE_SIZE); 83 de->name_len[0] >> 1, PAGE_SIZE);
84 } else { 84 } else {
85 len = uni16_to_x8(outname, (__be16 *) de->name, 85 len = uni16_to_x8(outname, (__be16 *) de->name,
86 de->name_len[0] >> 1, nls); 86 de->name_len[0] >> 1, nls);
87 } 87 }
88 if ((len > 2) && (outname[len-2] == ';') && (outname[len-1] == '1')) { 88 if ((len > 2) && (outname[len-2] == ';') && (outname[len-1] == '1'))
89 len -= 2; 89 len -= 2;
90 }
91 90
92 /* 91 /*
93 * Windows doesn't like periods at the end of a name, 92 * Windows doesn't like periods at the end of a name,
94 * so neither do we 93 * so neither do we
95 */ 94 */
96 while (len >= 2 && (outname[len-1] == '.')) { 95 while (len >= 2 && (outname[len-1] == '.'))
97 len--; 96 len--;
98 }
99 97
100 return len; 98 return len;
101} 99}
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index c04b3a14a3e9..c8c7e5138a01 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -15,7 +15,7 @@
15 * some sanity tests. 15 * some sanity tests.
16 */ 16 */
17static int 17static int
18isofs_cmp(struct dentry * dentry, const char * compare, int dlen) 18isofs_cmp(struct dentry *dentry, const char *compare, int dlen)
19{ 19{
20 struct qstr qstr; 20 struct qstr qstr;
21 21
@@ -48,24 +48,24 @@ isofs_cmp(struct dentry * dentry, const char * compare, int dlen)
48 */ 48 */
49static unsigned long 49static unsigned long
50isofs_find_entry(struct inode *dir, struct dentry *dentry, 50isofs_find_entry(struct inode *dir, struct dentry *dentry,
51 unsigned long *block_rv, unsigned long* offset_rv, 51 unsigned long *block_rv, unsigned long *offset_rv,
52 char * tmpname, struct iso_directory_record * tmpde) 52 char *tmpname, struct iso_directory_record *tmpde)
53{ 53{
54 unsigned long bufsize = ISOFS_BUFFER_SIZE(dir); 54 unsigned long bufsize = ISOFS_BUFFER_SIZE(dir);
55 unsigned char bufbits = ISOFS_BUFFER_BITS(dir); 55 unsigned char bufbits = ISOFS_BUFFER_BITS(dir);
56 unsigned long block, f_pos, offset, block_saved, offset_saved; 56 unsigned long block, f_pos, offset, block_saved, offset_saved;
57 struct buffer_head * bh = NULL; 57 struct buffer_head *bh = NULL;
58 struct isofs_sb_info *sbi = ISOFS_SB(dir->i_sb); 58 struct isofs_sb_info *sbi = ISOFS_SB(dir->i_sb);
59 59
60 if (!ISOFS_I(dir)->i_first_extent) 60 if (!ISOFS_I(dir)->i_first_extent)
61 return 0; 61 return 0;
62 62
63 f_pos = 0; 63 f_pos = 0;
64 offset = 0; 64 offset = 0;
65 block = 0; 65 block = 0;
66 66
67 while (f_pos < dir->i_size) { 67 while (f_pos < dir->i_size) {
68 struct iso_directory_record * de; 68 struct iso_directory_record *de;
69 int de_len, match, i, dlen; 69 int de_len, match, i, dlen;
70 char *dpnt; 70 char *dpnt;
71 71
@@ -114,7 +114,7 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
114 114
115 if (sbi->s_rock && 115 if (sbi->s_rock &&
116 ((i = get_rock_ridge_filename(de, tmpname, dir)))) { 116 ((i = get_rock_ridge_filename(de, tmpname, dir)))) {
117 dlen = i; /* possibly -1 */ 117 dlen = i; /* possibly -1 */
118 dpnt = tmpname; 118 dpnt = tmpname;
119#ifdef CONFIG_JOLIET 119#ifdef CONFIG_JOLIET
120 } else if (sbi->s_joliet_level) { 120 } else if (sbi->s_joliet_level) {
@@ -145,8 +145,8 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
145 isofs_normalize_block_and_offset(de, 145 isofs_normalize_block_and_offset(de,
146 &block_saved, 146 &block_saved,
147 &offset_saved); 147 &offset_saved);
148 *block_rv = block_saved; 148 *block_rv = block_saved;
149 *offset_rv = offset_saved; 149 *offset_rv = offset_saved;
150 brelse(bh); 150 brelse(bh);
151 return 1; 151 return 1;
152 } 152 }
@@ -155,7 +155,7 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
155 return 0; 155 return 0;
156} 156}
157 157
158struct dentry *isofs_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd) 158struct dentry *isofs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
159{ 159{
160 int found; 160 int found;
161 unsigned long block, offset; 161 unsigned long block, offset;
@@ -170,9 +170,9 @@ struct dentry *isofs_lookup(struct inode * dir, struct dentry * dentry, struct n
170 170
171 lock_kernel(); 171 lock_kernel();
172 found = isofs_find_entry(dir, dentry, 172 found = isofs_find_entry(dir, dentry,
173 &block, &offset, 173 &block, &offset,
174 page_address(page), 174 page_address(page),
175 1024 + page_address(page)); 175 1024 + page_address(page));
176 __free_page(page); 176 __free_page(page);
177 177
178 inode = NULL; 178 inode = NULL;
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 1facfaff97cb..a003d50edcdb 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -887,7 +887,8 @@ restart_loop:
887 journal->j_committing_transaction = NULL; 887 journal->j_committing_transaction = NULL;
888 spin_unlock(&journal->j_state_lock); 888 spin_unlock(&journal->j_state_lock);
889 889
890 if (commit_transaction->t_checkpoint_list == NULL) { 890 if (commit_transaction->t_checkpoint_list == NULL &&
891 commit_transaction->t_checkpoint_io_list == NULL) {
891 __journal_drop_transaction(journal, commit_transaction); 892 __journal_drop_transaction(journal, commit_transaction);
892 } else { 893 } else {
893 if (journal->j_checkpoint_transactions == NULL) { 894 if (journal->j_checkpoint_transactions == NULL) {
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index 824e3b7d4ec1..8db2fa25170b 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -68,6 +68,7 @@
68#include <linux/list.h> 68#include <linux/list.h>
69#include <linux/init.h> 69#include <linux/init.h>
70#endif 70#endif
71#include <linux/log2.h>
71 72
72static struct kmem_cache *revoke_record_cache; 73static struct kmem_cache *revoke_record_cache;
73static struct kmem_cache *revoke_table_cache; 74static struct kmem_cache *revoke_table_cache;
@@ -211,7 +212,7 @@ int journal_init_revoke(journal_t *journal, int hash_size)
211 journal->j_revoke = journal->j_revoke_table[0]; 212 journal->j_revoke = journal->j_revoke_table[0];
212 213
213 /* Check that the hash_size is a power of two */ 214 /* Check that the hash_size is a power of two */
214 J_ASSERT ((hash_size & (hash_size-1)) == 0); 215 J_ASSERT(is_power_of_2(hash_size));
215 216
216 journal->j_revoke->hash_size = hash_size; 217 journal->j_revoke->hash_size = hash_size;
217 218
@@ -238,7 +239,7 @@ int journal_init_revoke(journal_t *journal, int hash_size)
238 journal->j_revoke = journal->j_revoke_table[1]; 239 journal->j_revoke = journal->j_revoke_table[1];
239 240
240 /* Check that the hash_size is a power of two */ 241 /* Check that the hash_size is a power of two */
241 J_ASSERT ((hash_size & (hash_size-1)) == 0); 242 J_ASSERT(is_power_of_2(hash_size));
242 243
243 journal->j_revoke->hash_size = hash_size; 244 journal->j_revoke->hash_size = hash_size;
244 245
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 2856e1100a5f..c0f59d1b13dc 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -896,7 +896,8 @@ restart_loop:
896 journal->j_committing_transaction = NULL; 896 journal->j_committing_transaction = NULL;
897 spin_unlock(&journal->j_state_lock); 897 spin_unlock(&journal->j_state_lock);
898 898
899 if (commit_transaction->t_checkpoint_list == NULL) { 899 if (commit_transaction->t_checkpoint_list == NULL &&
900 commit_transaction->t_checkpoint_io_list == NULL) {
900 __jbd2_journal_drop_transaction(journal, commit_transaction); 901 __jbd2_journal_drop_transaction(journal, commit_transaction);
901 } else { 902 } else {
902 if (journal->j_checkpoint_transactions == NULL) { 903 if (journal->j_checkpoint_transactions == NULL) {
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 9246e763da78..28cac049a56b 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -68,6 +68,7 @@
68#include <linux/list.h> 68#include <linux/list.h>
69#include <linux/init.h> 69#include <linux/init.h>
70#endif 70#endif
71#include <linux/log2.h>
71 72
72static struct kmem_cache *jbd2_revoke_record_cache; 73static struct kmem_cache *jbd2_revoke_record_cache;
73static struct kmem_cache *jbd2_revoke_table_cache; 74static struct kmem_cache *jbd2_revoke_table_cache;
@@ -212,7 +213,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int hash_size)
212 journal->j_revoke = journal->j_revoke_table[0]; 213 journal->j_revoke = journal->j_revoke_table[0];
213 214
214 /* Check that the hash_size is a power of two */ 215 /* Check that the hash_size is a power of two */
215 J_ASSERT ((hash_size & (hash_size-1)) == 0); 216 J_ASSERT(is_power_of_2(hash_size));
216 217
217 journal->j_revoke->hash_size = hash_size; 218 journal->j_revoke->hash_size = hash_size;
218 219
@@ -239,7 +240,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int hash_size)
239 journal->j_revoke = journal->j_revoke_table[1]; 240 journal->j_revoke = journal->j_revoke_table[1];
240 241
241 /* Check that the hash_size is a power of two */ 242 /* Check that the hash_size is a power of two */
242 J_ASSERT ((hash_size & (hash_size-1)) == 0); 243 J_ASSERT(is_power_of_2(hash_size));
243 244
244 journal->j_revoke->hash_size = hash_size; 245 journal->j_revoke->hash_size = hash_size;
245 246
diff --git a/fs/namespace.c b/fs/namespace.c
index b696e3a0d18f..4198003d7e18 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -28,6 +28,7 @@
28#include <asm/uaccess.h> 28#include <asm/uaccess.h>
29#include <asm/unistd.h> 29#include <asm/unistd.h>
30#include "pnode.h" 30#include "pnode.h"
31#include "internal.h"
31 32
32/* spinlock for vfsmount related operations, inplace of dcache_lock */ 33/* spinlock for vfsmount related operations, inplace of dcache_lock */
33__cacheline_aligned_in_smp DEFINE_SPINLOCK(vfsmount_lock); 34__cacheline_aligned_in_smp DEFINE_SPINLOCK(vfsmount_lock);
@@ -320,22 +321,16 @@ EXPORT_SYMBOL(mnt_unpin);
320static void *m_start(struct seq_file *m, loff_t *pos) 321static void *m_start(struct seq_file *m, loff_t *pos)
321{ 322{
322 struct mnt_namespace *n = m->private; 323 struct mnt_namespace *n = m->private;
323 struct list_head *p;
324 loff_t l = *pos;
325 324
326 down_read(&namespace_sem); 325 down_read(&namespace_sem);
327 list_for_each(p, &n->list) 326 return seq_list_start(&n->list, *pos);
328 if (!l--)
329 return list_entry(p, struct vfsmount, mnt_list);
330 return NULL;
331} 327}
332 328
333static void *m_next(struct seq_file *m, void *v, loff_t *pos) 329static void *m_next(struct seq_file *m, void *v, loff_t *pos)
334{ 330{
335 struct mnt_namespace *n = m->private; 331 struct mnt_namespace *n = m->private;
336 struct list_head *p = ((struct vfsmount *)v)->mnt_list.next; 332
337 (*pos)++; 333 return seq_list_next(v, &n->list, pos);
338 return p == &n->list ? NULL : list_entry(p, struct vfsmount, mnt_list);
339} 334}
340 335
341static void m_stop(struct seq_file *m, void *v) 336static void m_stop(struct seq_file *m, void *v)
@@ -350,7 +345,7 @@ static inline void mangle(struct seq_file *m, const char *s)
350 345
351static int show_vfsmnt(struct seq_file *m, void *v) 346static int show_vfsmnt(struct seq_file *m, void *v)
352{ 347{
353 struct vfsmount *mnt = v; 348 struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
354 int err = 0; 349 int err = 0;
355 static struct proc_fs_info { 350 static struct proc_fs_info {
356 int flag; 351 int flag;
@@ -405,7 +400,7 @@ struct seq_operations mounts_op = {
405 400
406static int show_vfsstat(struct seq_file *m, void *v) 401static int show_vfsstat(struct seq_file *m, void *v)
407{ 402{
408 struct vfsmount *mnt = v; 403 struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
409 int err = 0; 404 int err = 0;
410 405
411 /* device */ 406 /* device */
@@ -1457,7 +1452,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
1457 1452
1458 new_ns = kmalloc(sizeof(struct mnt_namespace), GFP_KERNEL); 1453 new_ns = kmalloc(sizeof(struct mnt_namespace), GFP_KERNEL);
1459 if (!new_ns) 1454 if (!new_ns)
1460 return NULL; 1455 return ERR_PTR(-ENOMEM);
1461 1456
1462 atomic_set(&new_ns->count, 1); 1457 atomic_set(&new_ns->count, 1);
1463 INIT_LIST_HEAD(&new_ns->list); 1458 INIT_LIST_HEAD(&new_ns->list);
@@ -1471,7 +1466,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
1471 if (!new_ns->root) { 1466 if (!new_ns->root) {
1472 up_write(&namespace_sem); 1467 up_write(&namespace_sem);
1473 kfree(new_ns); 1468 kfree(new_ns);
1474 return NULL; 1469 return ERR_PTR(-ENOMEM);;
1475 } 1470 }
1476 spin_lock(&vfsmount_lock); 1471 spin_lock(&vfsmount_lock);
1477 list_add_tail(&new_ns->list, &new_ns->root->mnt_list); 1472 list_add_tail(&new_ns->list, &new_ns->root->mnt_list);
@@ -1515,7 +1510,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
1515 return new_ns; 1510 return new_ns;
1516} 1511}
1517 1512
1518struct mnt_namespace *copy_mnt_ns(int flags, struct mnt_namespace *ns, 1513struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
1519 struct fs_struct *new_fs) 1514 struct fs_struct *new_fs)
1520{ 1515{
1521 struct mnt_namespace *new_ns; 1516 struct mnt_namespace *new_ns;
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
index d3152f8d95c6..2b145de45b39 100644
--- a/fs/ncpfs/file.c
+++ b/fs/ncpfs/file.c
@@ -203,7 +203,6 @@ ncp_file_write(struct file *file, const char __user *buf, size_t count, loff_t *
203 203
204 if (pos + count > MAX_NON_LFS && !(file->f_flags&O_LARGEFILE)) { 204 if (pos + count > MAX_NON_LFS && !(file->f_flags&O_LARGEFILE)) {
205 if (pos >= MAX_NON_LFS) { 205 if (pos >= MAX_NON_LFS) {
206 send_sig(SIGXFSZ, current, 0);
207 return -EFBIG; 206 return -EFBIG;
208 } 207 }
209 if (count > MAX_NON_LFS - (u32)pos) { 208 if (count > MAX_NON_LFS - (u32)pos) {
@@ -212,7 +211,6 @@ ncp_file_write(struct file *file, const char __user *buf, size_t count, loff_t *
212 } 211 }
213 if (pos >= inode->i_sb->s_maxbytes) { 212 if (pos >= inode->i_sb->s_maxbytes) {
214 if (count || pos > inode->i_sb->s_maxbytes) { 213 if (count || pos > inode->i_sb->s_maxbytes) {
215 send_sig(SIGXFSZ, current, 0);
216 return -EFBIG; 214 return -EFBIG;
217 } 215 }
218 } 216 }
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index ccb455053ee4..a49f9feff776 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1206,23 +1206,9 @@ static int nfs_server_list_open(struct inode *inode, struct file *file)
1206 */ 1206 */
1207static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos) 1207static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos)
1208{ 1208{
1209 struct list_head *_p;
1210 loff_t pos = *_pos;
1211
1212 /* lock the list against modification */ 1209 /* lock the list against modification */
1213 spin_lock(&nfs_client_lock); 1210 spin_lock(&nfs_client_lock);
1214 1211 return seq_list_start_head(&nfs_client_list, *_pos);
1215 /* allow for the header line */
1216 if (!pos)
1217 return SEQ_START_TOKEN;
1218 pos--;
1219
1220 /* find the n'th element in the list */
1221 list_for_each(_p, &nfs_client_list)
1222 if (!pos--)
1223 break;
1224
1225 return _p != &nfs_client_list ? _p : NULL;
1226} 1212}
1227 1213
1228/* 1214/*
@@ -1230,14 +1216,7 @@ static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos)
1230 */ 1216 */
1231static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos) 1217static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos)
1232{ 1218{
1233 struct list_head *_p; 1219 return seq_list_next(v, &nfs_client_list, pos);
1234
1235 (*pos)++;
1236
1237 _p = v;
1238 _p = (v == SEQ_START_TOKEN) ? nfs_client_list.next : _p->next;
1239
1240 return _p != &nfs_client_list ? _p : NULL;
1241} 1220}
1242 1221
1243/* 1222/*
@@ -1256,7 +1235,7 @@ static int nfs_server_list_show(struct seq_file *m, void *v)
1256 struct nfs_client *clp; 1235 struct nfs_client *clp;
1257 1236
1258 /* display header on line 1 */ 1237 /* display header on line 1 */
1259 if (v == SEQ_START_TOKEN) { 1238 if (v == &nfs_client_list) {
1260 seq_puts(m, "NV SERVER PORT USE HOSTNAME\n"); 1239 seq_puts(m, "NV SERVER PORT USE HOSTNAME\n");
1261 return 0; 1240 return 0;
1262 } 1241 }
@@ -1297,23 +1276,9 @@ static int nfs_volume_list_open(struct inode *inode, struct file *file)
1297 */ 1276 */
1298static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos) 1277static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos)
1299{ 1278{
1300 struct list_head *_p;
1301 loff_t pos = *_pos;
1302
1303 /* lock the list against modification */ 1279 /* lock the list against modification */
1304 spin_lock(&nfs_client_lock); 1280 spin_lock(&nfs_client_lock);
1305 1281 return seq_list_start_head(&nfs_volume_list, *_pos);
1306 /* allow for the header line */
1307 if (!pos)
1308 return SEQ_START_TOKEN;
1309 pos--;
1310
1311 /* find the n'th element in the list */
1312 list_for_each(_p, &nfs_volume_list)
1313 if (!pos--)
1314 break;
1315
1316 return _p != &nfs_volume_list ? _p : NULL;
1317} 1282}
1318 1283
1319/* 1284/*
@@ -1321,14 +1286,7 @@ static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos)
1321 */ 1286 */
1322static void *nfs_volume_list_next(struct seq_file *p, void *v, loff_t *pos) 1287static void *nfs_volume_list_next(struct seq_file *p, void *v, loff_t *pos)
1323{ 1288{
1324 struct list_head *_p; 1289 return seq_list_next(v, &nfs_volume_list, pos);
1325
1326 (*pos)++;
1327
1328 _p = v;
1329 _p = (v == SEQ_START_TOKEN) ? nfs_volume_list.next : _p->next;
1330
1331 return _p != &nfs_volume_list ? _p : NULL;
1332} 1290}
1333 1291
1334/* 1292/*
@@ -1349,7 +1307,7 @@ static int nfs_volume_list_show(struct seq_file *m, void *v)
1349 char dev[8], fsid[17]; 1307 char dev[8], fsid[17];
1350 1308
1351 /* display header on line 1 */ 1309 /* display header on line 1 */
1352 if (v == SEQ_START_TOKEN) { 1310 if (v == &nfs_volume_list) {
1353 seq_puts(m, "NV SERVER PORT DEV FSID\n"); 1311 seq_puts(m, "NV SERVER PORT DEV FSID\n");
1354 return 0; 1312 return 0;
1355 } 1313 }
diff --git a/fs/nls/Makefile b/fs/nls/Makefile
index a7ade138d684..f499dd7c3905 100644
--- a/fs/nls/Makefile
+++ b/fs/nls/Makefile
@@ -36,11 +36,9 @@ obj-$(CONFIG_NLS_ISO8859_6) += nls_iso8859-6.o
36obj-$(CONFIG_NLS_ISO8859_7) += nls_iso8859-7.o 36obj-$(CONFIG_NLS_ISO8859_7) += nls_iso8859-7.o
37obj-$(CONFIG_NLS_ISO8859_8) += nls_cp1255.o 37obj-$(CONFIG_NLS_ISO8859_8) += nls_cp1255.o
38obj-$(CONFIG_NLS_ISO8859_9) += nls_iso8859-9.o 38obj-$(CONFIG_NLS_ISO8859_9) += nls_iso8859-9.o
39obj-$(CONFIG_NLS_ISO8859_10) += nls_iso8859-10.o
40obj-$(CONFIG_NLS_ISO8859_13) += nls_iso8859-13.o 39obj-$(CONFIG_NLS_ISO8859_13) += nls_iso8859-13.o
41obj-$(CONFIG_NLS_ISO8859_14) += nls_iso8859-14.o 40obj-$(CONFIG_NLS_ISO8859_14) += nls_iso8859-14.o
42obj-$(CONFIG_NLS_ISO8859_15) += nls_iso8859-15.o 41obj-$(CONFIG_NLS_ISO8859_15) += nls_iso8859-15.o
43obj-$(CONFIG_NLS_KOI8_R) += nls_koi8-r.o 42obj-$(CONFIG_NLS_KOI8_R) += nls_koi8-r.o
44obj-$(CONFIG_NLS_KOI8_U) += nls_koi8-u.o nls_koi8-ru.o 43obj-$(CONFIG_NLS_KOI8_U) += nls_koi8-u.o nls_koi8-ru.o
45obj-$(CONFIG_NLS_ABC) += nls_abc.o
46obj-$(CONFIG_NLS_UTF8) += nls_utf8.o 44obj-$(CONFIG_NLS_UTF8) += nls_utf8.o
diff --git a/fs/open.c b/fs/open.c
index 0d515d161974..be6a457f4226 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -855,7 +855,7 @@ EXPORT_SYMBOL(dentry_open);
855/* 855/*
856 * Find an empty file descriptor entry, and mark it busy. 856 * Find an empty file descriptor entry, and mark it busy.
857 */ 857 */
858int get_unused_fd(void) 858int get_unused_fd_flags(int flags)
859{ 859{
860 struct files_struct * files = current->files; 860 struct files_struct * files = current->files;
861 int fd, error; 861 int fd, error;
@@ -891,7 +891,10 @@ repeat:
891 } 891 }
892 892
893 FD_SET(fd, fdt->open_fds); 893 FD_SET(fd, fdt->open_fds);
894 FD_CLR(fd, fdt->close_on_exec); 894 if (flags & O_CLOEXEC)
895 FD_SET(fd, fdt->close_on_exec);
896 else
897 FD_CLR(fd, fdt->close_on_exec);
895 files->next_fd = fd + 1; 898 files->next_fd = fd + 1;
896#if 1 899#if 1
897 /* Sanity check */ 900 /* Sanity check */
@@ -907,6 +910,11 @@ out:
907 return error; 910 return error;
908} 911}
909 912
913int get_unused_fd(void)
914{
915 return get_unused_fd_flags(0);
916}
917
910EXPORT_SYMBOL(get_unused_fd); 918EXPORT_SYMBOL(get_unused_fd);
911 919
912static void __put_unused_fd(struct files_struct *files, unsigned int fd) 920static void __put_unused_fd(struct files_struct *files, unsigned int fd)
@@ -959,7 +967,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, int mode)
959 int fd = PTR_ERR(tmp); 967 int fd = PTR_ERR(tmp);
960 968
961 if (!IS_ERR(tmp)) { 969 if (!IS_ERR(tmp)) {
962 fd = get_unused_fd(); 970 fd = get_unused_fd_flags(flags);
963 if (fd >= 0) { 971 if (fd >= 0) {
964 struct file *f = do_filp_open(dfd, tmp, flags, mode); 972 struct file *f = do_filp_open(dfd, tmp, flags, mode);
965 if (IS_ERR(f)) { 973 if (IS_ERR(f)) {
diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c
index e3491328596b..3d3e16631472 100644
--- a/fs/partitions/acorn.c
+++ b/fs/partitions/acorn.c
@@ -25,6 +25,8 @@
25#define PARTITION_RISCIX_SCSI 2 25#define PARTITION_RISCIX_SCSI 2
26#define PARTITION_LINUX 9 26#define PARTITION_LINUX 9
27 27
28#if defined(CONFIG_ACORN_PARTITION_CUMANA) || \
29 defined(CONFIG_ACORN_PARTITION_ADFS)
28static struct adfs_discrecord * 30static struct adfs_discrecord *
29adfs_partition(struct parsed_partitions *state, char *name, char *data, 31adfs_partition(struct parsed_partitions *state, char *name, char *data,
30 unsigned long first_sector, int slot) 32 unsigned long first_sector, int slot)
@@ -48,6 +50,7 @@ adfs_partition(struct parsed_partitions *state, char *name, char *data,
48 put_partition(state, slot, first_sector, nr_sects); 50 put_partition(state, slot, first_sector, nr_sects);
49 return dr; 51 return dr;
50} 52}
53#endif
51 54
52#ifdef CONFIG_ACORN_PARTITION_RISCIX 55#ifdef CONFIG_ACORN_PARTITION_RISCIX
53 56
@@ -65,6 +68,8 @@ struct riscix_record {
65 struct riscix_part part[8]; 68 struct riscix_part part[8];
66}; 69};
67 70
71#if defined(CONFIG_ACORN_PARTITION_CUMANA) || \
72 defined(CONFIG_ACORN_PARTITION_ADFS)
68static int 73static int
69riscix_partition(struct parsed_partitions *state, struct block_device *bdev, 74riscix_partition(struct parsed_partitions *state, struct block_device *bdev,
70 unsigned long first_sect, int slot, unsigned long nr_sects) 75 unsigned long first_sect, int slot, unsigned long nr_sects)
@@ -105,6 +110,7 @@ riscix_partition(struct parsed_partitions *state, struct block_device *bdev,
105 return slot; 110 return slot;
106} 111}
107#endif 112#endif
113#endif
108 114
109#define LINUX_NATIVE_MAGIC 0xdeafa1de 115#define LINUX_NATIVE_MAGIC 0xdeafa1de
110#define LINUX_SWAP_MAGIC 0xdeafab1e 116#define LINUX_SWAP_MAGIC 0xdeafab1e
@@ -115,6 +121,8 @@ struct linux_part {
115 __le32 nr_sects; 121 __le32 nr_sects;
116}; 122};
117 123
124#if defined(CONFIG_ACORN_PARTITION_CUMANA) || \
125 defined(CONFIG_ACORN_PARTITION_ADFS)
118static int 126static int
119linux_partition(struct parsed_partitions *state, struct block_device *bdev, 127linux_partition(struct parsed_partitions *state, struct block_device *bdev,
120 unsigned long first_sect, int slot, unsigned long nr_sects) 128 unsigned long first_sect, int slot, unsigned long nr_sects)
@@ -146,6 +154,7 @@ linux_partition(struct parsed_partitions *state, struct block_device *bdev,
146 put_dev_sector(sect); 154 put_dev_sector(sect);
147 return slot; 155 return slot;
148} 156}
157#endif
149 158
150#ifdef CONFIG_ACORN_PARTITION_CUMANA 159#ifdef CONFIG_ACORN_PARTITION_CUMANA
151int 160int
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 98e78e2f18d6..9cbab7e93557 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -289,6 +289,15 @@ static inline char *task_cap(struct task_struct *p, char *buffer)
289 cap_t(p->cap_effective)); 289 cap_t(p->cap_effective));
290} 290}
291 291
292static inline char *task_context_switch_counts(struct task_struct *p,
293 char *buffer)
294{
295 return buffer + sprintf(buffer, "voluntary_ctxt_switches:\t%lu\n"
296 "nonvoluntary_ctxt_switches:\t%lu\n",
297 p->nvcsw,
298 p->nivcsw);
299}
300
292int proc_pid_status(struct task_struct *task, char * buffer) 301int proc_pid_status(struct task_struct *task, char * buffer)
293{ 302{
294 char * orig = buffer; 303 char * orig = buffer;
@@ -307,6 +316,7 @@ int proc_pid_status(struct task_struct *task, char * buffer)
307#if defined(CONFIG_S390) 316#if defined(CONFIG_S390)
308 buffer = task_show_regs(task, buffer); 317 buffer = task_show_regs(task, buffer);
309#endif 318#endif
319 buffer = task_context_switch_counts(task, buffer);
310 return buffer - orig; 320 return buffer - orig;
311} 321}
312 322
@@ -440,8 +450,9 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
440 450
441 /* Temporary variable needed for gcc-2.96 */ 451 /* Temporary variable needed for gcc-2.96 */
442 /* convert timespec -> nsec*/ 452 /* convert timespec -> nsec*/
443 start_time = (unsigned long long)task->start_time.tv_sec * NSEC_PER_SEC 453 start_time =
444 + task->start_time.tv_nsec; 454 (unsigned long long)task->real_start_time.tv_sec * NSEC_PER_SEC
455 + task->real_start_time.tv_nsec;
445 /* convert nsec -> ticks */ 456 /* convert nsec -> ticks */
446 start_time = nsec_to_clock_t(start_time); 457 start_time = nsec_to_clock_t(start_time);
447 458
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 46ea5d56e1bb..ae3627337a92 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -67,7 +67,6 @@
67#include <linux/mount.h> 67#include <linux/mount.h>
68#include <linux/security.h> 68#include <linux/security.h>
69#include <linux/ptrace.h> 69#include <linux/ptrace.h>
70#include <linux/seccomp.h>
71#include <linux/cpuset.h> 70#include <linux/cpuset.h>
72#include <linux/audit.h> 71#include <linux/audit.h>
73#include <linux/poll.h> 72#include <linux/poll.h>
@@ -204,12 +203,17 @@ static int proc_pid_environ(struct task_struct *task, char * buffer)
204 int res = 0; 203 int res = 0;
205 struct mm_struct *mm = get_task_mm(task); 204 struct mm_struct *mm = get_task_mm(task);
206 if (mm) { 205 if (mm) {
207 unsigned int len = mm->env_end - mm->env_start; 206 unsigned int len;
207
208 res = -ESRCH;
209 if (!ptrace_may_attach(task))
210 goto out;
211
212 len = mm->env_end - mm->env_start;
208 if (len > PAGE_SIZE) 213 if (len > PAGE_SIZE)
209 len = PAGE_SIZE; 214 len = PAGE_SIZE;
210 res = access_process_vm(task, mm->env_start, buffer, len, 0); 215 res = access_process_vm(task, mm->env_start, buffer, len, 0);
211 if (!ptrace_may_attach(task)) 216out:
212 res = -ESRCH;
213 mmput(mm); 217 mmput(mm);
214 } 218 }
215 return res; 219 return res;
@@ -812,71 +816,6 @@ static const struct file_operations proc_loginuid_operations = {
812}; 816};
813#endif 817#endif
814 818
815#ifdef CONFIG_SECCOMP
816static ssize_t seccomp_read(struct file *file, char __user *buf,
817 size_t count, loff_t *ppos)
818{
819 struct task_struct *tsk = get_proc_task(file->f_dentry->d_inode);
820 char __buf[20];
821 size_t len;
822
823 if (!tsk)
824 return -ESRCH;
825 /* no need to print the trailing zero, so use only len */
826 len = sprintf(__buf, "%u\n", tsk->seccomp.mode);
827 put_task_struct(tsk);
828
829 return simple_read_from_buffer(buf, count, ppos, __buf, len);
830}
831
832static ssize_t seccomp_write(struct file *file, const char __user *buf,
833 size_t count, loff_t *ppos)
834{
835 struct task_struct *tsk = get_proc_task(file->f_dentry->d_inode);
836 char __buf[20], *end;
837 unsigned int seccomp_mode;
838 ssize_t result;
839
840 result = -ESRCH;
841 if (!tsk)
842 goto out_no_task;
843
844 /* can set it only once to be even more secure */
845 result = -EPERM;
846 if (unlikely(tsk->seccomp.mode))
847 goto out;
848
849 result = -EFAULT;
850 memset(__buf, 0, sizeof(__buf));
851 count = min(count, sizeof(__buf) - 1);
852 if (copy_from_user(__buf, buf, count))
853 goto out;
854
855 seccomp_mode = simple_strtoul(__buf, &end, 0);
856 if (*end == '\n')
857 end++;
858 result = -EINVAL;
859 if (seccomp_mode && seccomp_mode <= NR_SECCOMP_MODES) {
860 tsk->seccomp.mode = seccomp_mode;
861 set_tsk_thread_flag(tsk, TIF_SECCOMP);
862 } else
863 goto out;
864 result = -EIO;
865 if (unlikely(!(end - __buf)))
866 goto out;
867 result = end - __buf;
868out:
869 put_task_struct(tsk);
870out_no_task:
871 return result;
872}
873
874static const struct file_operations proc_seccomp_operations = {
875 .read = seccomp_read,
876 .write = seccomp_write,
877};
878#endif /* CONFIG_SECCOMP */
879
880#ifdef CONFIG_FAULT_INJECTION 819#ifdef CONFIG_FAULT_INJECTION
881static ssize_t proc_fault_inject_read(struct file * file, char __user * buf, 820static ssize_t proc_fault_inject_read(struct file * file, char __user * buf,
882 size_t count, loff_t *ppos) 821 size_t count, loff_t *ppos)
@@ -2037,9 +1976,6 @@ static const struct pid_entry tgid_base_stuff[] = {
2037 REG("numa_maps", S_IRUGO, numa_maps), 1976 REG("numa_maps", S_IRUGO, numa_maps),
2038#endif 1977#endif
2039 REG("mem", S_IRUSR|S_IWUSR, mem), 1978 REG("mem", S_IRUSR|S_IWUSR, mem),
2040#ifdef CONFIG_SECCOMP
2041 REG("seccomp", S_IRUSR|S_IWUSR, seccomp),
2042#endif
2043 LNK("cwd", cwd), 1979 LNK("cwd", cwd),
2044 LNK("root", root), 1980 LNK("root", root),
2045 LNK("exe", exe), 1981 LNK("exe", exe),
@@ -2324,9 +2260,6 @@ static const struct pid_entry tid_base_stuff[] = {
2324 REG("numa_maps", S_IRUGO, numa_maps), 2260 REG("numa_maps", S_IRUGO, numa_maps),
2325#endif 2261#endif
2326 REG("mem", S_IRUSR|S_IWUSR, mem), 2262 REG("mem", S_IRUSR|S_IWUSR, mem),
2327#ifdef CONFIG_SECCOMP
2328 REG("seccomp", S_IRUSR|S_IWUSR, seccomp),
2329#endif
2330 LNK("cwd", cwd), 2263 LNK("cwd", cwd),
2331 LNK("root", root), 2264 LNK("root", root),
2332 LNK("exe", exe), 2265 LNK("exe", exe),
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 8a40e15f5ecb..b5e7155d30d8 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -20,6 +20,7 @@
20#include <linux/namei.h> 20#include <linux/namei.h>
21#include <linux/bitops.h> 21#include <linux/bitops.h>
22#include <linux/spinlock.h> 22#include <linux/spinlock.h>
23#include <linux/completion.h>
23#include <asm/uaccess.h> 24#include <asm/uaccess.h>
24 25
25#include "internal.h" 26#include "internal.h"
@@ -529,12 +530,6 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
529 return -EAGAIN; 530 return -EAGAIN;
530 dp->low_ino = i; 531 dp->low_ino = i;
531 532
532 spin_lock(&proc_subdir_lock);
533 dp->next = dir->subdir;
534 dp->parent = dir;
535 dir->subdir = dp;
536 spin_unlock(&proc_subdir_lock);
537
538 if (S_ISDIR(dp->mode)) { 533 if (S_ISDIR(dp->mode)) {
539 if (dp->proc_iops == NULL) { 534 if (dp->proc_iops == NULL) {
540 dp->proc_fops = &proc_dir_operations; 535 dp->proc_fops = &proc_dir_operations;
@@ -550,6 +545,13 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
550 if (dp->proc_iops == NULL) 545 if (dp->proc_iops == NULL)
551 dp->proc_iops = &proc_file_inode_operations; 546 dp->proc_iops = &proc_file_inode_operations;
552 } 547 }
548
549 spin_lock(&proc_subdir_lock);
550 dp->next = dir->subdir;
551 dp->parent = dir;
552 dir->subdir = dp;
553 spin_unlock(&proc_subdir_lock);
554
553 return 0; 555 return 0;
554} 556}
555 557
@@ -613,6 +615,9 @@ static struct proc_dir_entry *proc_create(struct proc_dir_entry **parent,
613 ent->namelen = len; 615 ent->namelen = len;
614 ent->mode = mode; 616 ent->mode = mode;
615 ent->nlink = nlink; 617 ent->nlink = nlink;
618 ent->pde_users = 0;
619 spin_lock_init(&ent->pde_unload_lock);
620 ent->pde_unload_completion = NULL;
616 out: 621 out:
617 return ent; 622 return ent;
618} 623}
@@ -649,9 +654,6 @@ struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
649 654
650 ent = proc_create(&parent, name, S_IFDIR | mode, 2); 655 ent = proc_create(&parent, name, S_IFDIR | mode, 2);
651 if (ent) { 656 if (ent) {
652 ent->proc_fops = &proc_dir_operations;
653 ent->proc_iops = &proc_dir_inode_operations;
654
655 if (proc_register(parent, ent) < 0) { 657 if (proc_register(parent, ent) < 0) {
656 kfree(ent); 658 kfree(ent);
657 ent = NULL; 659 ent = NULL;
@@ -686,10 +688,6 @@ struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
686 688
687 ent = proc_create(&parent,name,mode,nlink); 689 ent = proc_create(&parent,name,mode,nlink);
688 if (ent) { 690 if (ent) {
689 if (S_ISDIR(mode)) {
690 ent->proc_fops = &proc_dir_operations;
691 ent->proc_iops = &proc_dir_inode_operations;
692 }
693 if (proc_register(parent, ent) < 0) { 691 if (proc_register(parent, ent) < 0) {
694 kfree(ent); 692 kfree(ent);
695 ent = NULL; 693 ent = NULL;
@@ -734,9 +732,35 @@ void remove_proc_entry(const char *name, struct proc_dir_entry *parent)
734 de = *p; 732 de = *p;
735 *p = de->next; 733 *p = de->next;
736 de->next = NULL; 734 de->next = NULL;
735
736 spin_lock(&de->pde_unload_lock);
737 /*
738 * Stop accepting new callers into module. If you're
739 * dynamically allocating ->proc_fops, save a pointer somewhere.
740 */
741 de->proc_fops = NULL;
742 /* Wait until all existing callers into module are done. */
743 if (de->pde_users > 0) {
744 DECLARE_COMPLETION_ONSTACK(c);
745
746 if (!de->pde_unload_completion)
747 de->pde_unload_completion = &c;
748
749 spin_unlock(&de->pde_unload_lock);
750 spin_unlock(&proc_subdir_lock);
751
752 wait_for_completion(de->pde_unload_completion);
753
754 spin_lock(&proc_subdir_lock);
755 goto continue_removing;
756 }
757 spin_unlock(&de->pde_unload_lock);
758
759continue_removing:
737 if (S_ISDIR(de->mode)) 760 if (S_ISDIR(de->mode))
738 parent->nlink--; 761 parent->nlink--;
739 proc_kill_inodes(de); 762 if (!S_ISREG(de->mode))
763 proc_kill_inodes(de);
740 de->nlink = 0; 764 de->nlink = 0;
741 WARN_ON(de->subdir); 765 WARN_ON(de->subdir);
742 if (!atomic_read(&de->count)) 766 if (!atomic_read(&de->count))
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index d5ce65c68d7b..dd28e86ab422 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -10,6 +10,7 @@
10#include <linux/mm.h> 10#include <linux/mm.h>
11#include <linux/string.h> 11#include <linux/string.h>
12#include <linux/stat.h> 12#include <linux/stat.h>
13#include <linux/completion.h>
13#include <linux/file.h> 14#include <linux/file.h>
14#include <linux/limits.h> 15#include <linux/limits.h>
15#include <linux/init.h> 16#include <linux/init.h>
@@ -140,6 +141,251 @@ static const struct super_operations proc_sops = {
140 .remount_fs = proc_remount, 141 .remount_fs = proc_remount,
141}; 142};
142 143
144static void pde_users_dec(struct proc_dir_entry *pde)
145{
146 spin_lock(&pde->pde_unload_lock);
147 pde->pde_users--;
148 if (pde->pde_unload_completion && pde->pde_users == 0)
149 complete(pde->pde_unload_completion);
150 spin_unlock(&pde->pde_unload_lock);
151}
152
153static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)
154{
155 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
156 loff_t rv = -EINVAL;
157 loff_t (*llseek)(struct file *, loff_t, int);
158
159 spin_lock(&pde->pde_unload_lock);
160 /*
161 * remove_proc_entry() is going to delete PDE (as part of module
162 * cleanup sequence). No new callers into module allowed.
163 */
164 if (!pde->proc_fops) {
165 spin_unlock(&pde->pde_unload_lock);
166 return rv;
167 }
168 /*
169 * Bump refcount so that remove_proc_entry will wail for ->llseek to
170 * complete.
171 */
172 pde->pde_users++;
173 /*
174 * Save function pointer under lock, to protect against ->proc_fops
175 * NULL'ifying right after ->pde_unload_lock is dropped.
176 */
177 llseek = pde->proc_fops->llseek;
178 spin_unlock(&pde->pde_unload_lock);
179
180 if (!llseek)
181 llseek = default_llseek;
182 rv = llseek(file, offset, whence);
183
184 pde_users_dec(pde);
185 return rv;
186}
187
188static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
189{
190 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
191 ssize_t rv = -EIO;
192 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
193
194 spin_lock(&pde->pde_unload_lock);
195 if (!pde->proc_fops) {
196 spin_unlock(&pde->pde_unload_lock);
197 return rv;
198 }
199 pde->pde_users++;
200 read = pde->proc_fops->read;
201 spin_unlock(&pde->pde_unload_lock);
202
203 if (read)
204 rv = read(file, buf, count, ppos);
205
206 pde_users_dec(pde);
207 return rv;
208}
209
210static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
211{
212 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
213 ssize_t rv = -EIO;
214 ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *);
215
216 spin_lock(&pde->pde_unload_lock);
217 if (!pde->proc_fops) {
218 spin_unlock(&pde->pde_unload_lock);
219 return rv;
220 }
221 pde->pde_users++;
222 write = pde->proc_fops->write;
223 spin_unlock(&pde->pde_unload_lock);
224
225 if (write)
226 rv = write(file, buf, count, ppos);
227
228 pde_users_dec(pde);
229 return rv;
230}
231
232static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *pts)
233{
234 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
235 unsigned int rv = 0;
236 unsigned int (*poll)(struct file *, struct poll_table_struct *);
237
238 spin_lock(&pde->pde_unload_lock);
239 if (!pde->proc_fops) {
240 spin_unlock(&pde->pde_unload_lock);
241 return rv;
242 }
243 pde->pde_users++;
244 poll = pde->proc_fops->poll;
245 spin_unlock(&pde->pde_unload_lock);
246
247 if (poll)
248 rv = poll(file, pts);
249
250 pde_users_dec(pde);
251 return rv;
252}
253
254static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
255{
256 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
257 long rv = -ENOTTY;
258 long (*unlocked_ioctl)(struct file *, unsigned int, unsigned long);
259 int (*ioctl)(struct inode *, struct file *, unsigned int, unsigned long);
260
261 spin_lock(&pde->pde_unload_lock);
262 if (!pde->proc_fops) {
263 spin_unlock(&pde->pde_unload_lock);
264 return rv;
265 }
266 pde->pde_users++;
267 unlocked_ioctl = pde->proc_fops->unlocked_ioctl;
268 ioctl = pde->proc_fops->ioctl;
269 spin_unlock(&pde->pde_unload_lock);
270
271 if (unlocked_ioctl) {
272 rv = unlocked_ioctl(file, cmd, arg);
273 if (rv == -ENOIOCTLCMD)
274 rv = -EINVAL;
275 } else if (ioctl) {
276 lock_kernel();
277 rv = ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
278 unlock_kernel();
279 }
280
281 pde_users_dec(pde);
282 return rv;
283}
284
285#ifdef CONFIG_COMPAT
286static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
287{
288 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
289 long rv = -ENOTTY;
290 long (*compat_ioctl)(struct file *, unsigned int, unsigned long);
291
292 spin_lock(&pde->pde_unload_lock);
293 if (!pde->proc_fops) {
294 spin_unlock(&pde->pde_unload_lock);
295 return rv;
296 }
297 pde->pde_users++;
298 compat_ioctl = pde->proc_fops->compat_ioctl;
299 spin_unlock(&pde->pde_unload_lock);
300
301 if (compat_ioctl)
302 rv = compat_ioctl(file, cmd, arg);
303
304 pde_users_dec(pde);
305 return rv;
306}
307#endif
308
309static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)
310{
311 struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
312 int rv = -EIO;
313 int (*mmap)(struct file *, struct vm_area_struct *);
314
315 spin_lock(&pde->pde_unload_lock);
316 if (!pde->proc_fops) {
317 spin_unlock(&pde->pde_unload_lock);
318 return rv;
319 }
320 pde->pde_users++;
321 mmap = pde->proc_fops->mmap;
322 spin_unlock(&pde->pde_unload_lock);
323
324 if (mmap)
325 rv = mmap(file, vma);
326
327 pde_users_dec(pde);
328 return rv;
329}
330
331static int proc_reg_open(struct inode *inode, struct file *file)
332{
333 struct proc_dir_entry *pde = PDE(inode);
334 int rv = 0;
335 int (*open)(struct inode *, struct file *);
336
337 spin_lock(&pde->pde_unload_lock);
338 if (!pde->proc_fops) {
339 spin_unlock(&pde->pde_unload_lock);
340 return rv;
341 }
342 pde->pde_users++;
343 open = pde->proc_fops->open;
344 spin_unlock(&pde->pde_unload_lock);
345
346 if (open)
347 rv = open(inode, file);
348
349 pde_users_dec(pde);
350 return rv;
351}
352
353static int proc_reg_release(struct inode *inode, struct file *file)
354{
355 struct proc_dir_entry *pde = PDE(inode);
356 int rv = 0;
357 int (*release)(struct inode *, struct file *);
358
359 spin_lock(&pde->pde_unload_lock);
360 if (!pde->proc_fops) {
361 spin_unlock(&pde->pde_unload_lock);
362 return rv;
363 }
364 pde->pde_users++;
365 release = pde->proc_fops->release;
366 spin_unlock(&pde->pde_unload_lock);
367
368 if (release)
369 rv = release(inode, file);
370
371 pde_users_dec(pde);
372 return rv;
373}
374
375static const struct file_operations proc_reg_file_ops = {
376 .llseek = proc_reg_llseek,
377 .read = proc_reg_read,
378 .write = proc_reg_write,
379 .poll = proc_reg_poll,
380 .unlocked_ioctl = proc_reg_unlocked_ioctl,
381#ifdef CONFIG_COMPAT
382 .compat_ioctl = proc_reg_compat_ioctl,
383#endif
384 .mmap = proc_reg_mmap,
385 .open = proc_reg_open,
386 .release = proc_reg_release,
387};
388
143struct inode *proc_get_inode(struct super_block *sb, unsigned int ino, 389struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
144 struct proc_dir_entry *de) 390 struct proc_dir_entry *de)
145{ 391{
@@ -166,8 +412,12 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
166 inode->i_nlink = de->nlink; 412 inode->i_nlink = de->nlink;
167 if (de->proc_iops) 413 if (de->proc_iops)
168 inode->i_op = de->proc_iops; 414 inode->i_op = de->proc_iops;
169 if (de->proc_fops) 415 if (de->proc_fops) {
170 inode->i_fop = de->proc_fops; 416 if (S_ISREG(inode->i_mode))
417 inode->i_fop = &proc_reg_file_ops;
418 else
419 inode->i_fop = de->proc_fops;
420 }
171 } 421 }
172 422
173 return inode; 423 return inode;
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 5fd49e47f83a..d24b8d46059a 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -105,6 +105,7 @@ static int uptime_read_proc(char *page, char **start, off_t off,
105 cputime_t idletime = cputime_add(init_task.utime, init_task.stime); 105 cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
106 106
107 do_posix_clock_monotonic_gettime(&uptime); 107 do_posix_clock_monotonic_gettime(&uptime);
108 monotonic_to_bootbased(&uptime);
108 cputime_to_timespec(idletime, &idle); 109 cputime_to_timespec(idletime, &idle);
109 len = sprintf(page,"%lu.%02lu %lu.%02lu\n", 110 len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
110 (unsigned long) uptime.tv_sec, 111 (unsigned long) uptime.tv_sec,
@@ -443,12 +444,12 @@ static int show_stat(struct seq_file *p, void *v)
443 unsigned long jif; 444 unsigned long jif;
444 cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; 445 cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
445 u64 sum = 0; 446 u64 sum = 0;
447 struct timespec boottime;
446 448
447 user = nice = system = idle = iowait = 449 user = nice = system = idle = iowait =
448 irq = softirq = steal = cputime64_zero; 450 irq = softirq = steal = cputime64_zero;
449 jif = - wall_to_monotonic.tv_sec; 451 getboottime(&boottime);
450 if (wall_to_monotonic.tv_nsec) 452 jif = boottime.tv_sec;
451 --jif;
452 453
453 for_each_possible_cpu(i) { 454 for_each_possible_cpu(i) {
454 int j; 455 int j;
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index b3a473b0a191..22846225acfa 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -69,7 +69,7 @@ static void show_tty_range(struct seq_file *m, struct tty_driver *p,
69 69
70static int show_tty_driver(struct seq_file *m, void *v) 70static int show_tty_driver(struct seq_file *m, void *v)
71{ 71{
72 struct tty_driver *p = v; 72 struct tty_driver *p = list_entry(v, struct tty_driver, tty_drivers);
73 dev_t from = MKDEV(p->major, p->minor_start); 73 dev_t from = MKDEV(p->major, p->minor_start);
74 dev_t to = from + p->num; 74 dev_t to = from + p->num;
75 75
@@ -106,22 +106,13 @@ static int show_tty_driver(struct seq_file *m, void *v)
106/* iterator */ 106/* iterator */
107static void *t_start(struct seq_file *m, loff_t *pos) 107static void *t_start(struct seq_file *m, loff_t *pos)
108{ 108{
109 struct list_head *p;
110 loff_t l = *pos;
111
112 mutex_lock(&tty_mutex); 109 mutex_lock(&tty_mutex);
113 list_for_each(p, &tty_drivers) 110 return seq_list_start(&tty_drivers, *pos);
114 if (!l--)
115 return list_entry(p, struct tty_driver, tty_drivers);
116 return NULL;
117} 111}
118 112
119static void *t_next(struct seq_file *m, void *v, loff_t *pos) 113static void *t_next(struct seq_file *m, void *v, loff_t *pos)
120{ 114{
121 struct list_head *p = ((struct tty_driver *)v)->tty_drivers.next; 115 return seq_list_next(v, &tty_drivers, pos);
122 (*pos)++;
123 return p==&tty_drivers ? NULL :
124 list_entry(p, struct tty_driver, tty_drivers);
125} 116}
126 117
127static void t_stop(struct seq_file *m, void *v) 118static void t_stop(struct seq_file *m, void *v)
diff --git a/fs/quota.c b/fs/quota.c
index 9f237d6182c9..e6577ac15a6c 100644
--- a/fs/quota.c
+++ b/fs/quota.c
@@ -10,12 +10,14 @@
10#include <linux/slab.h> 10#include <linux/slab.h>
11#include <asm/current.h> 11#include <asm/current.h>
12#include <asm/uaccess.h> 12#include <asm/uaccess.h>
13#include <linux/compat.h>
13#include <linux/kernel.h> 14#include <linux/kernel.h>
14#include <linux/security.h> 15#include <linux/security.h>
15#include <linux/syscalls.h> 16#include <linux/syscalls.h>
16#include <linux/buffer_head.h> 17#include <linux/buffer_head.h>
17#include <linux/capability.h> 18#include <linux/capability.h>
18#include <linux/quotaops.h> 19#include <linux/quotaops.h>
20#include <linux/types.h>
19 21
20/* Check validity of generic quotactl commands */ 22/* Check validity of generic quotactl commands */
21static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id) 23static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
@@ -384,3 +386,119 @@ asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, qid_t
384 386
385 return ret; 387 return ret;
386} 388}
389
390#if defined(CONFIG_X86_64) || defined(CONFIG_IA64)
391/*
392 * This code works only for 32 bit quota tools over 64 bit OS (x86_64, ia64)
393 * and is necessary due to alignment problems.
394 */
395struct compat_if_dqblk {
396 compat_u64 dqb_bhardlimit;
397 compat_u64 dqb_bsoftlimit;
398 compat_u64 dqb_curspace;
399 compat_u64 dqb_ihardlimit;
400 compat_u64 dqb_isoftlimit;
401 compat_u64 dqb_curinodes;
402 compat_u64 dqb_btime;
403 compat_u64 dqb_itime;
404 compat_uint_t dqb_valid;
405};
406
407/* XFS structures */
408struct compat_fs_qfilestat {
409 compat_u64 dqb_bhardlimit;
410 compat_u64 qfs_nblks;
411 compat_uint_t qfs_nextents;
412};
413
414struct compat_fs_quota_stat {
415 __s8 qs_version;
416 __u16 qs_flags;
417 __s8 qs_pad;
418 struct compat_fs_qfilestat qs_uquota;
419 struct compat_fs_qfilestat qs_gquota;
420 compat_uint_t qs_incoredqs;
421 compat_int_t qs_btimelimit;
422 compat_int_t qs_itimelimit;
423 compat_int_t qs_rtbtimelimit;
424 __u16 qs_bwarnlimit;
425 __u16 qs_iwarnlimit;
426};
427
428asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
429 qid_t id, void __user *addr)
430{
431 unsigned int cmds;
432 struct if_dqblk __user *dqblk;
433 struct compat_if_dqblk __user *compat_dqblk;
434 struct fs_quota_stat __user *fsqstat;
435 struct compat_fs_quota_stat __user *compat_fsqstat;
436 compat_uint_t data;
437 u16 xdata;
438 long ret;
439
440 cmds = cmd >> SUBCMDSHIFT;
441
442 switch (cmds) {
443 case Q_GETQUOTA:
444 dqblk = compat_alloc_user_space(sizeof(struct if_dqblk));
445 compat_dqblk = addr;
446 ret = sys_quotactl(cmd, special, id, dqblk);
447 if (ret)
448 break;
449 if (copy_in_user(compat_dqblk, dqblk, sizeof(*compat_dqblk)) ||
450 get_user(data, &dqblk->dqb_valid) ||
451 put_user(data, &compat_dqblk->dqb_valid))
452 ret = -EFAULT;
453 break;
454 case Q_SETQUOTA:
455 dqblk = compat_alloc_user_space(sizeof(struct if_dqblk));
456 compat_dqblk = addr;
457 ret = -EFAULT;
458 if (copy_in_user(dqblk, compat_dqblk, sizeof(*compat_dqblk)) ||
459 get_user(data, &compat_dqblk->dqb_valid) ||
460 put_user(data, &dqblk->dqb_valid))
461 break;
462 ret = sys_quotactl(cmd, special, id, dqblk);
463 break;
464 case Q_XGETQSTAT:
465 fsqstat = compat_alloc_user_space(sizeof(struct fs_quota_stat));
466 compat_fsqstat = addr;
467 ret = sys_quotactl(cmd, special, id, fsqstat);
468 if (ret)
469 break;
470 ret = -EFAULT;
471 /* Copying qs_version, qs_flags, qs_pad */
472 if (copy_in_user(compat_fsqstat, fsqstat,
473 offsetof(struct compat_fs_quota_stat, qs_uquota)))
474 break;
475 /* Copying qs_uquota */
476 if (copy_in_user(&compat_fsqstat->qs_uquota,
477 &fsqstat->qs_uquota,
478 sizeof(compat_fsqstat->qs_uquota)) ||
479 get_user(data, &fsqstat->qs_uquota.qfs_nextents) ||
480 put_user(data, &compat_fsqstat->qs_uquota.qfs_nextents))
481 break;
482 /* Copying qs_gquota */
483 if (copy_in_user(&compat_fsqstat->qs_gquota,
484 &fsqstat->qs_gquota,
485 sizeof(compat_fsqstat->qs_gquota)) ||
486 get_user(data, &fsqstat->qs_gquota.qfs_nextents) ||
487 put_user(data, &compat_fsqstat->qs_gquota.qfs_nextents))
488 break;
489 /* Copying the rest */
490 if (copy_in_user(&compat_fsqstat->qs_incoredqs,
491 &fsqstat->qs_incoredqs,
492 sizeof(struct compat_fs_quota_stat) -
493 offsetof(struct compat_fs_quota_stat, qs_incoredqs)) ||
494 get_user(xdata, &fsqstat->qs_iwarnlimit) ||
495 put_user(xdata, &compat_fsqstat->qs_iwarnlimit))
496 break;
497 ret = 0;
498 break;
499 default:
500 ret = sys_quotactl(cmd, special, id, addr);
501 }
502 return ret;
503}
504#endif
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 30eebfb1b2d8..2070aeee2a52 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -1305,7 +1305,6 @@ static ssize_t reiserfs_file_write(struct file *file, /* the file we are going t
1305 if (get_inode_item_key_version (inode) == KEY_FORMAT_3_5 && 1305 if (get_inode_item_key_version (inode) == KEY_FORMAT_3_5 &&
1306 *ppos + count > MAX_NON_LFS) { 1306 *ppos + count > MAX_NON_LFS) {
1307 if (*ppos >= MAX_NON_LFS) { 1307 if (*ppos >= MAX_NON_LFS) {
1308 send_sig(SIGXFSZ, current, 0);
1309 return -EFBIG; 1308 return -EFBIG;
1310 } 1309 }
1311 if (count > MAX_NON_LFS - (unsigned long)*ppos) 1310 if (count > MAX_NON_LFS - (unsigned long)*ppos)
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 49194a4e6b91..bbb19be260ce 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -177,21 +177,23 @@ EXPORT_SYMBOL(seq_read);
177 177
178static int traverse(struct seq_file *m, loff_t offset) 178static int traverse(struct seq_file *m, loff_t offset)
179{ 179{
180 loff_t pos = 0; 180 loff_t pos = 0, index;
181 int error = 0; 181 int error = 0;
182 void *p; 182 void *p;
183 183
184 m->version = 0; 184 m->version = 0;
185 m->index = 0; 185 index = 0;
186 m->count = m->from = 0; 186 m->count = m->from = 0;
187 if (!offset) 187 if (!offset) {
188 m->index = index;
188 return 0; 189 return 0;
190 }
189 if (!m->buf) { 191 if (!m->buf) {
190 m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); 192 m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
191 if (!m->buf) 193 if (!m->buf)
192 return -ENOMEM; 194 return -ENOMEM;
193 } 195 }
194 p = m->op->start(m, &m->index); 196 p = m->op->start(m, &index);
195 while (p) { 197 while (p) {
196 error = PTR_ERR(p); 198 error = PTR_ERR(p);
197 if (IS_ERR(p)) 199 if (IS_ERR(p))
@@ -204,15 +206,17 @@ static int traverse(struct seq_file *m, loff_t offset)
204 if (pos + m->count > offset) { 206 if (pos + m->count > offset) {
205 m->from = offset - pos; 207 m->from = offset - pos;
206 m->count -= m->from; 208 m->count -= m->from;
209 m->index = index;
207 break; 210 break;
208 } 211 }
209 pos += m->count; 212 pos += m->count;
210 m->count = 0; 213 m->count = 0;
211 if (pos == offset) { 214 if (pos == offset) {
212 m->index++; 215 index++;
216 m->index = index;
213 break; 217 break;
214 } 218 }
215 p = m->op->next(m, p, &m->index); 219 p = m->op->next(m, p, &index);
216 } 220 }
217 m->op->stop(m, p); 221 m->op->stop(m, p);
218 return error; 222 return error;
@@ -260,8 +264,8 @@ loff_t seq_lseek(struct file *file, loff_t offset, int origin)
260 } 264 }
261 } 265 }
262 } 266 }
263 mutex_unlock(&m->lock);
264 file->f_version = m->version; 267 file->f_version = m->version;
268 mutex_unlock(&m->lock);
265 return retval; 269 return retval;
266} 270}
267EXPORT_SYMBOL(seq_lseek); 271EXPORT_SYMBOL(seq_lseek);
diff --git a/fs/splice.c b/fs/splice.c
index 6c9828651e6f..53fc2082a468 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1061,8 +1061,9 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
1061 1061
1062 while (len) { 1062 while (len) {
1063 size_t read_len; 1063 size_t read_len;
1064 loff_t pos = sd->pos;
1064 1065
1065 ret = do_splice_to(in, &sd->pos, pipe, len, flags); 1066 ret = do_splice_to(in, &pos, pipe, len, flags);
1066 if (unlikely(ret <= 0)) 1067 if (unlikely(ret <= 0))
1067 goto out_release; 1068 goto out_release;
1068 1069
@@ -1080,6 +1081,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
1080 1081
1081 bytes += ret; 1082 bytes += ret;
1082 len -= ret; 1083 len -= ret;
1084 sd->pos = pos;
1083 1085
1084 if (ret < read_len) 1086 if (ret < read_len)
1085 goto out_release; 1087 goto out_release;
diff --git a/fs/super.c b/fs/super.c
index 5260d620c555..fc8ebedc6bed 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -884,6 +884,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
884 error = type->get_sb(type, flags, name, data, mnt); 884 error = type->get_sb(type, flags, name, data, mnt);
885 if (error < 0) 885 if (error < 0)
886 goto out_free_secdata; 886 goto out_free_secdata;
887 BUG_ON(!mnt->mnt_sb);
887 888
888 error = security_sb_kern_mount(mnt->mnt_sb, secdata); 889 error = security_sb_kern_mount(mnt->mnt_sb, secdata);
889 if (error) 890 if (error)
diff --git a/fs/udf/crc.c b/fs/udf/crc.c
index 1b82a4adc2f7..ef2bfaa19d75 100644
--- a/fs/udf/crc.c
+++ b/fs/udf/crc.c
@@ -106,8 +106,8 @@ int main(void)
106{ 106{
107 unsigned short x; 107 unsigned short x;
108 108
109 x = udf_crc16(bytes, sizeof bytes); 109 x = udf_crc(bytes, sizeof bytes);
110 printf("udf_crc16: calculated = %4.4x, correct = %4.4x\n", x, 0x3299U); 110 printf("udf_crc: calculated = %4.4x, correct = %4.4x\n", x, 0x3299U);
111 111
112 return 0; 112 return 0;
113} 113}
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 8206983f2ebf..10f3188738af 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -50,7 +50,7 @@ void udf_free_inode(struct inode * inode)
50 else 50 else
51 UDF_SB_LVIDIU(sb)->numFiles = 51 UDF_SB_LVIDIU(sb)->numFiles =
52 cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1); 52 cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1);
53 53
54 mark_buffer_dirty(sbi->s_lvidbh); 54 mark_buffer_dirty(sbi->s_lvidbh);
55 } 55 }
56 mutex_unlock(&sbi->s_alloc_mutex); 56 mutex_unlock(&sbi->s_alloc_mutex);
@@ -136,6 +136,13 @@ struct inode * udf_new_inode (struct inode *dir, int mode, int * err)
136 UDF_I_EFE(inode) = 0; 136 UDF_I_EFE(inode) = 0;
137 UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL); 137 UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
138 } 138 }
139 if (!UDF_I_DATA(inode))
140 {
141 iput(inode);
142 *err = -ENOMEM;
143 mutex_unlock(&sbi->s_alloc_mutex);
144 return NULL;
145 }
139 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB)) 146 if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
140 UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB; 147 UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
141 else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD)) 148 else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index bf7de0bdbab3..5b82e489af78 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -49,6 +49,7 @@ MODULE_LICENSE("GPL");
49static mode_t udf_convert_permissions(struct fileEntry *); 49static mode_t udf_convert_permissions(struct fileEntry *);
50static int udf_update_inode(struct inode *, int); 50static int udf_update_inode(struct inode *, int);
51static void udf_fill_inode(struct inode *, struct buffer_head *); 51static void udf_fill_inode(struct inode *, struct buffer_head *);
52static int udf_alloc_i_data(struct inode *inode, size_t size);
52static struct buffer_head *inode_getblk(struct inode *, sector_t, int *, 53static struct buffer_head *inode_getblk(struct inode *, sector_t, int *,
53 long *, int *); 54 long *, int *);
54static int8_t udf_insert_aext(struct inode *, struct extent_position, 55static int8_t udf_insert_aext(struct inode *, struct extent_position,
@@ -734,7 +735,7 @@ static void udf_split_extents(struct inode *inode, int *c, int offset, int newbl
734 (*c) ++; 735 (*c) ++;
735 (*endnum) ++; 736 (*endnum) ++;
736 } 737 }
737 738
738 laarr[curr].extLocation.logicalBlockNum = newblocknum; 739 laarr[curr].extLocation.logicalBlockNum = newblocknum;
739 if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) 740 if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
740 laarr[curr].extLocation.partitionReferenceNum = 741 laarr[curr].extLocation.partitionReferenceNum =
@@ -836,7 +837,7 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
836 { 837 {
837 numalloc -= elen; 838 numalloc -= elen;
838 if (*endnum > (i+1)) 839 if (*endnum > (i+1))
839 memmove(&laarr[i], &laarr[i+1], 840 memmove(&laarr[i], &laarr[i+1],
840 sizeof(long_ad) * (*endnum - (i+1))); 841 sizeof(long_ad) * (*endnum - (i+1)));
841 i --; 842 i --;
842 (*endnum) --; 843 (*endnum) --;
@@ -1024,7 +1025,7 @@ void udf_truncate(struct inode * inode)
1024 { 1025 {
1025 block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block); 1026 block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block);
1026 udf_truncate_extents(inode); 1027 udf_truncate_extents(inode);
1027 } 1028 }
1028 1029
1029 inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb); 1030 inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb);
1030 if (IS_SYNC(inode)) 1031 if (IS_SYNC(inode))
@@ -1087,10 +1088,10 @@ __udf_read_inode(struct inode *inode)
1087 { 1088 {
1088 kernel_lb_addr loc; 1089 kernel_lb_addr loc;
1089 ie = (struct indirectEntry *)ibh->b_data; 1090 ie = (struct indirectEntry *)ibh->b_data;
1090 1091
1091 loc = lelb_to_cpu(ie->indirectICB.extLocation); 1092 loc = lelb_to_cpu(ie->indirectICB.extLocation);
1092 1093
1093 if (ie->indirectICB.extLength && 1094 if (ie->indirectICB.extLength &&
1094 (nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident))) 1095 (nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident)))
1095 { 1096 {
1096 if (ident == TAG_IDENT_FE || 1097 if (ident == TAG_IDENT_FE ||
@@ -1156,14 +1157,22 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
1156 { 1157 {
1157 UDF_I_EFE(inode) = 1; 1158 UDF_I_EFE(inode) = 1;
1158 UDF_I_USE(inode) = 0; 1159 UDF_I_USE(inode) = 0;
1159 UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL); 1160 if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry)))
1161 {
1162 make_bad_inode(inode);
1163 return;
1164 }
1160 memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry)); 1165 memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
1161 } 1166 }
1162 else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE) 1167 else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE)
1163 { 1168 {
1164 UDF_I_EFE(inode) = 0; 1169 UDF_I_EFE(inode) = 0;
1165 UDF_I_USE(inode) = 0; 1170 UDF_I_USE(inode) = 0;
1166 UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL); 1171 if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct fileEntry)))
1172 {
1173 make_bad_inode(inode);
1174 return;
1175 }
1167 memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry), inode->i_sb->s_blocksize - sizeof(struct fileEntry)); 1176 memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry), inode->i_sb->s_blocksize - sizeof(struct fileEntry));
1168 } 1177 }
1169 else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) 1178 else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE)
@@ -1173,7 +1182,11 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
1173 UDF_I_LENALLOC(inode) = 1182 UDF_I_LENALLOC(inode) =
1174 le32_to_cpu( 1183 le32_to_cpu(
1175 ((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs); 1184 ((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
1176 UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry), GFP_KERNEL); 1185 if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry)))
1186 {
1187 make_bad_inode(inode);
1188 return;
1189 }
1177 memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry)); 1190 memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
1178 return; 1191 return;
1179 } 1192 }
@@ -1191,7 +1204,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
1191 inode->i_nlink = le16_to_cpu(fe->fileLinkCount); 1204 inode->i_nlink = le16_to_cpu(fe->fileLinkCount);
1192 if (!inode->i_nlink) 1205 if (!inode->i_nlink)
1193 inode->i_nlink = 1; 1206 inode->i_nlink = 1;
1194 1207
1195 inode->i_size = le64_to_cpu(fe->informationLength); 1208 inode->i_size = le64_to_cpu(fe->informationLength);
1196 UDF_I_LENEXTENTS(inode) = inode->i_size; 1209 UDF_I_LENEXTENTS(inode) = inode->i_size;
1197 1210
@@ -1243,7 +1256,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
1243 } 1256 }
1244 else 1257 else
1245 { 1258 {
1246 inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) << 1259 inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
1247 (inode->i_sb->s_blocksize_bits - 9); 1260 (inode->i_sb->s_blocksize_bits - 9);
1248 1261
1249 if ( udf_stamp_to_time(&convtime, &convtime_usec, 1262 if ( udf_stamp_to_time(&convtime, &convtime_usec,
@@ -1374,6 +1387,20 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
1374 } 1387 }
1375} 1388}
1376 1389
1390static int udf_alloc_i_data(struct inode *inode, size_t size)
1391{
1392 UDF_I_DATA(inode) = kmalloc(size, GFP_KERNEL);
1393
1394 if (!UDF_I_DATA(inode))
1395 {
1396 printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) no free memory\n",
1397 inode->i_ino);
1398 return -ENOMEM;
1399 }
1400
1401 return 0;
1402}
1403
1377static mode_t 1404static mode_t
1378udf_convert_permissions(struct fileEntry *fe) 1405udf_convert_permissions(struct fileEntry *fe)
1379{ 1406{
@@ -2072,7 +2099,7 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
2072 mark_buffer_dirty_inode(oepos.bh, inode); 2099 mark_buffer_dirty_inode(oepos.bh, inode);
2073 } 2100 }
2074 } 2101 }
2075 2102
2076 brelse(epos.bh); 2103 brelse(epos.bh);
2077 brelse(oepos.bh); 2104 brelse(oepos.bh);
2078 return (elen >> 30); 2105 return (elen >> 30);
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 22ff6ed55ce9..2b3011689e89 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -87,6 +87,7 @@
87#include <linux/smp_lock.h> 87#include <linux/smp_lock.h>
88#include <linux/buffer_head.h> 88#include <linux/buffer_head.h>
89#include <linux/vfs.h> 89#include <linux/vfs.h>
90#include <linux/log2.h>
90 91
91#include "swab.h" 92#include "swab.h"
92#include "util.h" 93#include "util.h"
@@ -854,7 +855,7 @@ magic_found:
854 uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 855 uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask);
855 uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 856 uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
856 857
857 if (uspi->s_fsize & (uspi->s_fsize - 1)) { 858 if (!is_power_of_2(uspi->s_fsize)) {
858 printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", 859 printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n",
859 uspi->s_fsize); 860 uspi->s_fsize);
860 goto failed; 861 goto failed;
@@ -869,7 +870,7 @@ magic_found:
869 uspi->s_fsize); 870 uspi->s_fsize);
870 goto failed; 871 goto failed;
871 } 872 }
872 if (uspi->s_bsize & (uspi->s_bsize - 1)) { 873 if (!is_power_of_2(uspi->s_bsize)) {
873 printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", 874 printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n",
874 uspi->s_bsize); 875 uspi->s_bsize);
875 goto failed; 876 goto failed;
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 11:12:41 -0500