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-rw-r--r--fs/binfmt_elf.c3
-rw-r--r--fs/exec.c8
-rw-r--r--fs/fat/file.c44
-rw-r--r--fs/fuse/inode.c4
-rw-r--r--fs/ocfs2/cluster/nodemanager.c74
-rw-r--r--fs/ocfs2/cluster/nodemanager.h4
-rw-r--r--fs/ocfs2/stack_o2cb.c41
-rw-r--r--fs/ocfs2/stack_user.c3
-rw-r--r--fs/ocfs2/stackglue.c119
-rw-r--r--fs/ocfs2/stackglue.h19
-rw-r--r--fs/proc/task_mmu.c83
-rw-r--r--fs/udf/udfdecl.h2
12 files changed, 214 insertions, 190 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 0fa95b198e6e..d48ff5f370f4 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -16,7 +16,6 @@
16#include <linux/time.h> 16#include <linux/time.h>
17#include <linux/mm.h> 17#include <linux/mm.h>
18#include <linux/mman.h> 18#include <linux/mman.h>
19#include <linux/a.out.h>
20#include <linux/errno.h> 19#include <linux/errno.h>
21#include <linux/signal.h> 20#include <linux/signal.h>
22#include <linux/binfmts.h> 21#include <linux/binfmts.h>
@@ -548,7 +547,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
548 struct { 547 struct {
549 struct elfhdr elf_ex; 548 struct elfhdr elf_ex;
550 struct elfhdr interp_elf_ex; 549 struct elfhdr interp_elf_ex;
551 struct exec interp_ex;
552 } *loc; 550 } *loc;
553 551
554 loc = kmalloc(sizeof(*loc), GFP_KERNEL); 552 loc = kmalloc(sizeof(*loc), GFP_KERNEL);
@@ -680,7 +678,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
680 } 678 }
681 679
682 /* Get the exec headers */ 680 /* Get the exec headers */
683 loc->interp_ex = *((struct exec *)bprm->buf);
684 loc->interp_elf_ex = *((struct elfhdr *)bprm->buf); 681 loc->interp_elf_ex = *((struct elfhdr *)bprm->buf);
685 break; 682 break;
686 } 683 }
diff --git a/fs/exec.c b/fs/exec.c
index 9448f1b50b4a..da94a6f05df3 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -26,7 +26,6 @@
26#include <linux/file.h> 26#include <linux/file.h>
27#include <linux/fdtable.h> 27#include <linux/fdtable.h>
28#include <linux/mman.h> 28#include <linux/mman.h>
29#include <linux/a.out.h>
30#include <linux/stat.h> 29#include <linux/stat.h>
31#include <linux/fcntl.h> 30#include <linux/fcntl.h>
32#include <linux/smp_lock.h> 31#include <linux/smp_lock.h>
@@ -61,6 +60,11 @@
61#include <linux/kmod.h> 60#include <linux/kmod.h>
62#endif 61#endif
63 62
63#ifdef __alpha__
64/* for /sbin/loader handling in search_binary_handler() */
65#include <linux/a.out.h>
66#endif
67
64int core_uses_pid; 68int core_uses_pid;
65char core_pattern[CORENAME_MAX_SIZE] = "core"; 69char core_pattern[CORENAME_MAX_SIZE] = "core";
66int suid_dumpable = 0; 70int suid_dumpable = 0;
@@ -1155,7 +1159,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
1155{ 1159{
1156 int try,retval; 1160 int try,retval;
1157 struct linux_binfmt *fmt; 1161 struct linux_binfmt *fmt;
1158#if defined(__alpha__) && defined(CONFIG_ARCH_SUPPORTS_AOUT) 1162#ifdef __alpha__
1159 /* handle /sbin/loader.. */ 1163 /* handle /sbin/loader.. */
1160 { 1164 {
1161 struct exec * eh = (struct exec *) bprm->buf; 1165 struct exec * eh = (struct exec *) bprm->buf;
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 27cc1164ec36..771326b8047e 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -257,26 +257,34 @@ int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
257} 257}
258EXPORT_SYMBOL_GPL(fat_getattr); 258EXPORT_SYMBOL_GPL(fat_getattr);
259 259
260static int fat_check_mode(const struct msdos_sb_info *sbi, struct inode *inode, 260static int fat_sanitize_mode(const struct msdos_sb_info *sbi,
261 mode_t mode) 261 struct inode *inode, umode_t *mode_ptr)
262{ 262{
263 mode_t mask, req = mode & ~S_IFMT; 263 mode_t mask, perm;
264 264
265 if (S_ISREG(mode)) 265 /*
266 * Note, the basic check is already done by a caller of
267 * (attr->ia_mode & ~MSDOS_VALID_MODE)
268 */
269
270 if (S_ISREG(inode->i_mode))
266 mask = sbi->options.fs_fmask; 271 mask = sbi->options.fs_fmask;
267 else 272 else
268 mask = sbi->options.fs_dmask; 273 mask = sbi->options.fs_dmask;
269 274
275 perm = *mode_ptr & ~(S_IFMT | mask);
276
270 /* 277 /*
271 * Of the r and x bits, all (subject to umask) must be present. Of the 278 * Of the r and x bits, all (subject to umask) must be present. Of the
272 * w bits, either all (subject to umask) or none must be present. 279 * w bits, either all (subject to umask) or none must be present.
273 */ 280 */
274 req &= ~mask; 281 if ((perm & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))
275 if ((req & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))
276 return -EPERM; 282 return -EPERM;
277 if ((req & S_IWUGO) && ((req & S_IWUGO) != (S_IWUGO & ~mask))) 283 if ((perm & S_IWUGO) && ((perm & S_IWUGO) != (S_IWUGO & ~mask)))
278 return -EPERM; 284 return -EPERM;
279 285
286 *mode_ptr &= S_IFMT | perm;
287
280 return 0; 288 return 0;
281} 289}
282 290
@@ -299,7 +307,7 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
299{ 307{
300 struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb); 308 struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);
301 struct inode *inode = dentry->d_inode; 309 struct inode *inode = dentry->d_inode;
302 int mask, error = 0; 310 int error = 0;
303 unsigned int ia_valid; 311 unsigned int ia_valid;
304 312
305 lock_kernel(); 313 lock_kernel();
@@ -332,12 +340,13 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
332 error = 0; 340 error = 0;
333 goto out; 341 goto out;
334 } 342 }
343
335 if (((attr->ia_valid & ATTR_UID) && 344 if (((attr->ia_valid & ATTR_UID) &&
336 (attr->ia_uid != sbi->options.fs_uid)) || 345 (attr->ia_uid != sbi->options.fs_uid)) ||
337 ((attr->ia_valid & ATTR_GID) && 346 ((attr->ia_valid & ATTR_GID) &&
338 (attr->ia_gid != sbi->options.fs_gid)) || 347 (attr->ia_gid != sbi->options.fs_gid)) ||
339 ((attr->ia_valid & ATTR_MODE) && 348 ((attr->ia_valid & ATTR_MODE) &&
340 fat_check_mode(sbi, inode, attr->ia_mode) < 0)) 349 (attr->ia_mode & ~MSDOS_VALID_MODE)))
341 error = -EPERM; 350 error = -EPERM;
342 351
343 if (error) { 352 if (error) {
@@ -346,15 +355,16 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
346 goto out; 355 goto out;
347 } 356 }
348 357
349 error = inode_setattr(inode, attr); 358 /*
350 if (error) 359 * We don't return -EPERM here. Yes, strange, but this is too
351 goto out; 360 * old behavior.
361 */
362 if (attr->ia_valid & ATTR_MODE) {
363 if (fat_sanitize_mode(sbi, inode, &attr->ia_mode) < 0)
364 attr->ia_valid &= ~ATTR_MODE;
365 }
352 366
353 if (S_ISDIR(inode->i_mode)) 367 error = inode_setattr(inode, attr);
354 mask = sbi->options.fs_dmask;
355 else
356 mask = sbi->options.fs_fmask;
357 inode->i_mode &= S_IFMT | (S_IRWXUGO & ~mask);
358out: 368out:
359 unlock_kernel(); 369 unlock_kernel();
360 return error; 370 return error;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 43e99513334a..3141690558c8 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -591,7 +591,7 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
591 fc->bdi.ra_pages = min(fc->bdi.ra_pages, ra_pages); 591 fc->bdi.ra_pages = min(fc->bdi.ra_pages, ra_pages);
592 fc->minor = arg->minor; 592 fc->minor = arg->minor;
593 fc->max_write = arg->minor < 5 ? 4096 : arg->max_write; 593 fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
594 fc->max_write = min_t(unsigned, 4096, fc->max_write); 594 fc->max_write = max_t(unsigned, 4096, fc->max_write);
595 fc->conn_init = 1; 595 fc->conn_init = 1;
596 } 596 }
597 fuse_put_request(fc, req); 597 fuse_put_request(fc, req);
@@ -667,7 +667,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
667 fc->flags = d.flags; 667 fc->flags = d.flags;
668 fc->user_id = d.user_id; 668 fc->user_id = d.user_id;
669 fc->group_id = d.group_id; 669 fc->group_id = d.group_id;
670 fc->max_read = min_t(unsigned, 4096, d.max_read); 670 fc->max_read = max_t(unsigned, 4096, d.max_read);
671 671
672 /* Used by get_root_inode() */ 672 /* Used by get_root_inode() */
673 sb->s_fs_info = fc; 673 sb->s_fs_info = fc;
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index cf9401e8cd0b..cfdb08b484ed 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -21,7 +21,6 @@
21 21
22#include <linux/kernel.h> 22#include <linux/kernel.h>
23#include <linux/module.h> 23#include <linux/module.h>
24#include <linux/sysctl.h>
25#include <linux/configfs.h> 24#include <linux/configfs.h>
26 25
27#include "tcp.h" 26#include "tcp.h"
@@ -36,65 +35,6 @@
36 * cluster references throughout where nodes are looked up */ 35 * cluster references throughout where nodes are looked up */
37struct o2nm_cluster *o2nm_single_cluster = NULL; 36struct o2nm_cluster *o2nm_single_cluster = NULL;
38 37
39#define OCFS2_MAX_HB_CTL_PATH 256
40static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
41
42static ctl_table ocfs2_nm_table[] = {
43 {
44 .ctl_name = 1,
45 .procname = "hb_ctl_path",
46 .data = ocfs2_hb_ctl_path,
47 .maxlen = OCFS2_MAX_HB_CTL_PATH,
48 .mode = 0644,
49 .proc_handler = &proc_dostring,
50 .strategy = &sysctl_string,
51 },
52 { .ctl_name = 0 }
53};
54
55static ctl_table ocfs2_mod_table[] = {
56 {
57 .ctl_name = FS_OCFS2_NM,
58 .procname = "nm",
59 .data = NULL,
60 .maxlen = 0,
61 .mode = 0555,
62 .child = ocfs2_nm_table
63 },
64 { .ctl_name = 0}
65};
66
67static ctl_table ocfs2_kern_table[] = {
68 {
69 .ctl_name = FS_OCFS2,
70 .procname = "ocfs2",
71 .data = NULL,
72 .maxlen = 0,
73 .mode = 0555,
74 .child = ocfs2_mod_table
75 },
76 { .ctl_name = 0}
77};
78
79static ctl_table ocfs2_root_table[] = {
80 {
81 .ctl_name = CTL_FS,
82 .procname = "fs",
83 .data = NULL,
84 .maxlen = 0,
85 .mode = 0555,
86 .child = ocfs2_kern_table
87 },
88 { .ctl_name = 0 }
89};
90
91static struct ctl_table_header *ocfs2_table_header = NULL;
92
93const char *o2nm_get_hb_ctl_path(void)
94{
95 return ocfs2_hb_ctl_path;
96}
97EXPORT_SYMBOL_GPL(o2nm_get_hb_ctl_path);
98 38
99struct o2nm_node *o2nm_get_node_by_num(u8 node_num) 39struct o2nm_node *o2nm_get_node_by_num(u8 node_num)
100{ 40{
@@ -941,9 +881,6 @@ void o2nm_undepend_this_node(void)
941 881
942static void __exit exit_o2nm(void) 882static void __exit exit_o2nm(void)
943{ 883{
944 if (ocfs2_table_header)
945 unregister_sysctl_table(ocfs2_table_header);
946
947 /* XXX sync with hb callbacks and shut down hb? */ 884 /* XXX sync with hb callbacks and shut down hb? */
948 o2net_unregister_hb_callbacks(); 885 o2net_unregister_hb_callbacks();
949 configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys); 886 configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
@@ -964,16 +901,9 @@ static int __init init_o2nm(void)
964 if (ret) 901 if (ret)
965 goto out; 902 goto out;
966 903
967 ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
968 if (!ocfs2_table_header) {
969 printk(KERN_ERR "nodemanager: unable to register sysctl\n");
970 ret = -ENOMEM; /* or something. */
971 goto out_o2net;
972 }
973
974 ret = o2net_register_hb_callbacks(); 904 ret = o2net_register_hb_callbacks();
975 if (ret) 905 if (ret)
976 goto out_sysctl; 906 goto out_o2net;
977 907
978 config_group_init(&o2nm_cluster_group.cs_subsys.su_group); 908 config_group_init(&o2nm_cluster_group.cs_subsys.su_group);
979 mutex_init(&o2nm_cluster_group.cs_subsys.su_mutex); 909 mutex_init(&o2nm_cluster_group.cs_subsys.su_mutex);
@@ -990,8 +920,6 @@ static int __init init_o2nm(void)
990 configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys); 920 configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
991out_callbacks: 921out_callbacks:
992 o2net_unregister_hb_callbacks(); 922 o2net_unregister_hb_callbacks();
993out_sysctl:
994 unregister_sysctl_table(ocfs2_table_header);
995out_o2net: 923out_o2net:
996 o2net_exit(); 924 o2net_exit();
997out: 925out:
diff --git a/fs/ocfs2/cluster/nodemanager.h b/fs/ocfs2/cluster/nodemanager.h
index 7c860361b8dd..c992ea0da4ad 100644
--- a/fs/ocfs2/cluster/nodemanager.h
+++ b/fs/ocfs2/cluster/nodemanager.h
@@ -33,10 +33,6 @@
33#include <linux/configfs.h> 33#include <linux/configfs.h>
34#include <linux/rbtree.h> 34#include <linux/rbtree.h>
35 35
36#define FS_OCFS2_NM 1
37
38const char *o2nm_get_hb_ctl_path(void);
39
40struct o2nm_node { 36struct o2nm_node {
41 spinlock_t nd_lock; 37 spinlock_t nd_lock;
42 struct config_item nd_item; 38 struct config_item nd_item;
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index bbd1667aa7d3..fcd120f1493a 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -317,8 +317,7 @@ out:
317 return rc; 317 return rc;
318} 318}
319 319
320static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn, 320static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn)
321 int hangup_pending)
322{ 321{
323 struct dlm_ctxt *dlm = conn->cc_lockspace; 322 struct dlm_ctxt *dlm = conn->cc_lockspace;
324 struct o2dlm_private *priv = conn->cc_private; 323 struct o2dlm_private *priv = conn->cc_private;
@@ -333,43 +332,6 @@ static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn,
333 return 0; 332 return 0;
334} 333}
335 334
336static void o2hb_stop(const char *group)
337{
338 int ret;
339 char *argv[5], *envp[3];
340
341 argv[0] = (char *)o2nm_get_hb_ctl_path();
342 argv[1] = "-K";
343 argv[2] = "-u";
344 argv[3] = (char *)group;
345 argv[4] = NULL;
346
347 mlog(0, "Run: %s %s %s %s\n", argv[0], argv[1], argv[2], argv[3]);
348
349 /* minimal command environment taken from cpu_run_sbin_hotplug */
350 envp[0] = "HOME=/";
351 envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
352 envp[2] = NULL;
353
354 ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
355 if (ret < 0)
356 mlog_errno(ret);
357}
358
359/*
360 * Hangup is a hack for tools compatibility. Older ocfs2-tools software
361 * expects the filesystem to call "ocfs2_hb_ctl" during unmount. This
362 * happens regardless of whether the DLM got started, so we can't do it
363 * in ocfs2_cluster_disconnect(). We bring the o2hb_stop() function into
364 * the glue and provide a "hangup" API for super.c to call.
365 *
366 * Other stacks will eventually provide a NULL ->hangup() pointer.
367 */
368static void o2cb_cluster_hangup(const char *group, int grouplen)
369{
370 o2hb_stop(group);
371}
372
373static int o2cb_cluster_this_node(unsigned int *node) 335static int o2cb_cluster_this_node(unsigned int *node)
374{ 336{
375 int node_num; 337 int node_num;
@@ -388,7 +350,6 @@ static int o2cb_cluster_this_node(unsigned int *node)
388static struct ocfs2_stack_operations o2cb_stack_ops = { 350static struct ocfs2_stack_operations o2cb_stack_ops = {
389 .connect = o2cb_cluster_connect, 351 .connect = o2cb_cluster_connect,
390 .disconnect = o2cb_cluster_disconnect, 352 .disconnect = o2cb_cluster_disconnect,
391 .hangup = o2cb_cluster_hangup,
392 .this_node = o2cb_cluster_this_node, 353 .this_node = o2cb_cluster_this_node,
393 .dlm_lock = o2cb_dlm_lock, 354 .dlm_lock = o2cb_dlm_lock,
394 .dlm_unlock = o2cb_dlm_unlock, 355 .dlm_unlock = o2cb_dlm_unlock,
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index 6b97d11f6bf8..c021280dd462 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -816,8 +816,7 @@ out:
816 return rc; 816 return rc;
817} 817}
818 818
819static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn, 819static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn)
820 int hangup_pending)
821{ 820{
822 dlm_release_lockspace(conn->cc_lockspace, 2); 821 dlm_release_lockspace(conn->cc_lockspace, 2);
823 conn->cc_lockspace = NULL; 822 conn->cc_lockspace = NULL;
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 119f60cea9cc..10e149ae5e3a 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -26,6 +26,7 @@
26#include <linux/fs.h> 26#include <linux/fs.h>
27#include <linux/kobject.h> 27#include <linux/kobject.h>
28#include <linux/sysfs.h> 28#include <linux/sysfs.h>
29#include <linux/sysctl.h>
29 30
30#include "ocfs2_fs.h" 31#include "ocfs2_fs.h"
31 32
@@ -33,11 +34,13 @@
33 34
34#define OCFS2_STACK_PLUGIN_O2CB "o2cb" 35#define OCFS2_STACK_PLUGIN_O2CB "o2cb"
35#define OCFS2_STACK_PLUGIN_USER "user" 36#define OCFS2_STACK_PLUGIN_USER "user"
37#define OCFS2_MAX_HB_CTL_PATH 256
36 38
37static struct ocfs2_locking_protocol *lproto; 39static struct ocfs2_locking_protocol *lproto;
38static DEFINE_SPINLOCK(ocfs2_stack_lock); 40static DEFINE_SPINLOCK(ocfs2_stack_lock);
39static LIST_HEAD(ocfs2_stack_list); 41static LIST_HEAD(ocfs2_stack_list);
40static char cluster_stack_name[OCFS2_STACK_LABEL_LEN + 1]; 42static char cluster_stack_name[OCFS2_STACK_LABEL_LEN + 1];
43static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
41 44
42/* 45/*
43 * The stack currently in use. If not null, active_stack->sp_count > 0, 46 * The stack currently in use. If not null, active_stack->sp_count > 0,
@@ -349,7 +352,7 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
349 352
350 BUG_ON(conn == NULL); 353 BUG_ON(conn == NULL);
351 354
352 ret = active_stack->sp_ops->disconnect(conn, hangup_pending); 355 ret = active_stack->sp_ops->disconnect(conn);
353 356
354 /* XXX Should we free it anyway? */ 357 /* XXX Should we free it anyway? */
355 if (!ret) { 358 if (!ret) {
@@ -362,13 +365,48 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
362} 365}
363EXPORT_SYMBOL_GPL(ocfs2_cluster_disconnect); 366EXPORT_SYMBOL_GPL(ocfs2_cluster_disconnect);
364 367
368/*
369 * Leave the group for this filesystem. This is executed by a userspace
370 * program (stored in ocfs2_hb_ctl_path).
371 */
372static void ocfs2_leave_group(const char *group)
373{
374 int ret;
375 char *argv[5], *envp[3];
376
377 argv[0] = ocfs2_hb_ctl_path;
378 argv[1] = "-K";
379 argv[2] = "-u";
380 argv[3] = (char *)group;
381 argv[4] = NULL;
382
383 /* minimal command environment taken from cpu_run_sbin_hotplug */
384 envp[0] = "HOME=/";
385 envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
386 envp[2] = NULL;
387
388 ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
389 if (ret < 0) {
390 printk(KERN_ERR
391 "ocfs2: Error %d running user helper "
392 "\"%s %s %s %s\"\n",
393 ret, argv[0], argv[1], argv[2], argv[3]);
394 }
395}
396
397/*
398 * Hangup is a required post-umount. ocfs2-tools software expects the
399 * filesystem to call "ocfs2_hb_ctl" during unmount. This happens
400 * regardless of whether the DLM got started, so we can't do it
401 * in ocfs2_cluster_disconnect(). The ocfs2_leave_group() function does
402 * the actual work.
403 */
365void ocfs2_cluster_hangup(const char *group, int grouplen) 404void ocfs2_cluster_hangup(const char *group, int grouplen)
366{ 405{
367 BUG_ON(group == NULL); 406 BUG_ON(group == NULL);
368 BUG_ON(group[grouplen] != '\0'); 407 BUG_ON(group[grouplen] != '\0');
369 408
370 if (active_stack->sp_ops->hangup) 409 ocfs2_leave_group(group);
371 active_stack->sp_ops->hangup(group, grouplen);
372 410
373 /* cluster_disconnect() was called with hangup_pending==1 */ 411 /* cluster_disconnect() was called with hangup_pending==1 */
374 ocfs2_stack_driver_put(); 412 ocfs2_stack_driver_put();
@@ -548,10 +586,83 @@ error:
548 return ret; 586 return ret;
549} 587}
550 588
589/*
590 * Sysctl bits
591 *
592 * The sysctl lives at /proc/sys/fs/ocfs2/nm/hb_ctl_path. The 'nm' doesn't
593 * make as much sense in a multiple cluster stack world, but it's safer
594 * and easier to preserve the name.
595 */
596
597#define FS_OCFS2_NM 1
598
599static ctl_table ocfs2_nm_table[] = {
600 {
601 .ctl_name = 1,
602 .procname = "hb_ctl_path",
603 .data = ocfs2_hb_ctl_path,
604 .maxlen = OCFS2_MAX_HB_CTL_PATH,
605 .mode = 0644,
606 .proc_handler = &proc_dostring,
607 .strategy = &sysctl_string,
608 },
609 { .ctl_name = 0 }
610};
611
612static ctl_table ocfs2_mod_table[] = {
613 {
614 .ctl_name = FS_OCFS2_NM,
615 .procname = "nm",
616 .data = NULL,
617 .maxlen = 0,
618 .mode = 0555,
619 .child = ocfs2_nm_table
620 },
621 { .ctl_name = 0}
622};
623
624static ctl_table ocfs2_kern_table[] = {
625 {
626 .ctl_name = FS_OCFS2,
627 .procname = "ocfs2",
628 .data = NULL,
629 .maxlen = 0,
630 .mode = 0555,
631 .child = ocfs2_mod_table
632 },
633 { .ctl_name = 0}
634};
635
636static ctl_table ocfs2_root_table[] = {
637 {
638 .ctl_name = CTL_FS,
639 .procname = "fs",
640 .data = NULL,
641 .maxlen = 0,
642 .mode = 0555,
643 .child = ocfs2_kern_table
644 },
645 { .ctl_name = 0 }
646};
647
648static struct ctl_table_header *ocfs2_table_header = NULL;
649
650
651/*
652 * Initialization
653 */
654
551static int __init ocfs2_stack_glue_init(void) 655static int __init ocfs2_stack_glue_init(void)
552{ 656{
553 strcpy(cluster_stack_name, OCFS2_STACK_PLUGIN_O2CB); 657 strcpy(cluster_stack_name, OCFS2_STACK_PLUGIN_O2CB);
554 658
659 ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
660 if (!ocfs2_table_header) {
661 printk(KERN_ERR
662 "ocfs2 stack glue: unable to register sysctl\n");
663 return -ENOMEM; /* or something. */
664 }
665
555 return ocfs2_sysfs_init(); 666 return ocfs2_sysfs_init();
556} 667}
557 668
@@ -559,6 +670,8 @@ static void __exit ocfs2_stack_glue_exit(void)
559{ 670{
560 lproto = NULL; 671 lproto = NULL;
561 ocfs2_sysfs_exit(); 672 ocfs2_sysfs_exit();
673 if (ocfs2_table_header)
674 unregister_sysctl_table(ocfs2_table_header);
562} 675}
563 676
564MODULE_AUTHOR("Oracle"); 677MODULE_AUTHOR("Oracle");
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index 005e4f170e0f..db56281dd1be 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -134,22 +134,10 @@ struct ocfs2_stack_operations {
134 * be freed. Thus, a stack must not return from ->disconnect() 134 * be freed. Thus, a stack must not return from ->disconnect()
135 * until it will no longer reference the conn pointer. 135 * until it will no longer reference the conn pointer.
136 * 136 *
137 * If hangup_pending is zero, ocfs2_cluster_disconnect() will also 137 * Once this call returns, the stack glue will be dropping this
138 * be dropping the reference on the module. 138 * connection's reference on the module.
139 */ 139 */
140 int (*disconnect)(struct ocfs2_cluster_connection *conn, 140 int (*disconnect)(struct ocfs2_cluster_connection *conn);
141 int hangup_pending);
142
143 /*
144 * ocfs2_cluster_hangup() exists for compatibility with older
145 * ocfs2 tools. Only the classic stack really needs it. As such
146 * ->hangup() is not required of all stacks. See the comment by
147 * ocfs2_cluster_hangup() for more details.
148 *
149 * Note that ocfs2_cluster_hangup() can only be called if
150 * hangup_pending was passed to ocfs2_cluster_disconnect().
151 */
152 void (*hangup)(const char *group, int grouplen);
153 141
154 /* 142 /*
155 * ->this_node() returns the cluster's unique identifier for the 143 * ->this_node() returns the cluster's unique identifier for the
@@ -258,4 +246,5 @@ void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto)
258/* Used by stack plugins */ 246/* Used by stack plugins */
259int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin); 247int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
260void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin); 248void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
249
261#endif /* STACKGLUE_H */ 250#endif /* STACKGLUE_H */
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 17403629e330..ab8ccc9d14ff 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -315,9 +315,9 @@ struct mem_size_stats {
315}; 315};
316 316
317static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, 317static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
318 void *private) 318 struct mm_walk *walk)
319{ 319{
320 struct mem_size_stats *mss = private; 320 struct mem_size_stats *mss = walk->private;
321 struct vm_area_struct *vma = mss->vma; 321 struct vm_area_struct *vma = mss->vma;
322 pte_t *pte, ptent; 322 pte_t *pte, ptent;
323 spinlock_t *ptl; 323 spinlock_t *ptl;
@@ -365,19 +365,21 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
365 return 0; 365 return 0;
366} 366}
367 367
368static struct mm_walk smaps_walk = { .pmd_entry = smaps_pte_range };
369
370static int show_smap(struct seq_file *m, void *v) 368static int show_smap(struct seq_file *m, void *v)
371{ 369{
372 struct vm_area_struct *vma = v; 370 struct vm_area_struct *vma = v;
373 struct mem_size_stats mss; 371 struct mem_size_stats mss;
374 int ret; 372 int ret;
373 struct mm_walk smaps_walk = {
374 .pmd_entry = smaps_pte_range,
375 .mm = vma->vm_mm,
376 .private = &mss,
377 };
375 378
376 memset(&mss, 0, sizeof mss); 379 memset(&mss, 0, sizeof mss);
377 mss.vma = vma; 380 mss.vma = vma;
378 if (vma->vm_mm && !is_vm_hugetlb_page(vma)) 381 if (vma->vm_mm && !is_vm_hugetlb_page(vma))
379 walk_page_range(vma->vm_mm, vma->vm_start, vma->vm_end, 382 walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
380 &smaps_walk, &mss);
381 383
382 ret = show_map(m, v); 384 ret = show_map(m, v);
383 if (ret) 385 if (ret)
@@ -426,9 +428,9 @@ const struct file_operations proc_smaps_operations = {
426}; 428};
427 429
428static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr, 430static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
429 unsigned long end, void *private) 431 unsigned long end, struct mm_walk *walk)
430{ 432{
431 struct vm_area_struct *vma = private; 433 struct vm_area_struct *vma = walk->private;
432 pte_t *pte, ptent; 434 pte_t *pte, ptent;
433 spinlock_t *ptl; 435 spinlock_t *ptl;
434 struct page *page; 436 struct page *page;
@@ -452,8 +454,6 @@ static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
452 return 0; 454 return 0;
453} 455}
454 456
455static struct mm_walk clear_refs_walk = { .pmd_entry = clear_refs_pte_range };
456
457static ssize_t clear_refs_write(struct file *file, const char __user *buf, 457static ssize_t clear_refs_write(struct file *file, const char __user *buf,
458 size_t count, loff_t *ppos) 458 size_t count, loff_t *ppos)
459{ 459{
@@ -476,11 +476,17 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
476 return -ESRCH; 476 return -ESRCH;
477 mm = get_task_mm(task); 477 mm = get_task_mm(task);
478 if (mm) { 478 if (mm) {
479 static struct mm_walk clear_refs_walk;
480 memset(&clear_refs_walk, 0, sizeof(clear_refs_walk));
481 clear_refs_walk.pmd_entry = clear_refs_pte_range;
482 clear_refs_walk.mm = mm;
479 down_read(&mm->mmap_sem); 483 down_read(&mm->mmap_sem);
480 for (vma = mm->mmap; vma; vma = vma->vm_next) 484 for (vma = mm->mmap; vma; vma = vma->vm_next) {
485 clear_refs_walk.private = vma;
481 if (!is_vm_hugetlb_page(vma)) 486 if (!is_vm_hugetlb_page(vma))
482 walk_page_range(mm, vma->vm_start, vma->vm_end, 487 walk_page_range(vma->vm_start, vma->vm_end,
483 &clear_refs_walk, vma); 488 &clear_refs_walk);
489 }
484 flush_tlb_mm(mm); 490 flush_tlb_mm(mm);
485 up_read(&mm->mmap_sem); 491 up_read(&mm->mmap_sem);
486 mmput(mm); 492 mmput(mm);
@@ -528,9 +534,9 @@ static int add_to_pagemap(unsigned long addr, u64 pfn,
528} 534}
529 535
530static int pagemap_pte_hole(unsigned long start, unsigned long end, 536static int pagemap_pte_hole(unsigned long start, unsigned long end,
531 void *private) 537 struct mm_walk *walk)
532{ 538{
533 struct pagemapread *pm = private; 539 struct pagemapread *pm = walk->private;
534 unsigned long addr; 540 unsigned long addr;
535 int err = 0; 541 int err = 0;
536 for (addr = start; addr < end; addr += PAGE_SIZE) { 542 for (addr = start; addr < end; addr += PAGE_SIZE) {
@@ -547,24 +553,45 @@ static u64 swap_pte_to_pagemap_entry(pte_t pte)
547 return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT); 553 return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);
548} 554}
549 555
556static unsigned long pte_to_pagemap_entry(pte_t pte)
557{
558 unsigned long pme = 0;
559 if (is_swap_pte(pte))
560 pme = PM_PFRAME(swap_pte_to_pagemap_entry(pte))
561 | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP;
562 else if (pte_present(pte))
563 pme = PM_PFRAME(pte_pfn(pte))
564 | PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT;
565 return pme;
566}
567
550static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, 568static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
551 void *private) 569 struct mm_walk *walk)
552{ 570{
553 struct pagemapread *pm = private; 571 struct vm_area_struct *vma;
572 struct pagemapread *pm = walk->private;
554 pte_t *pte; 573 pte_t *pte;
555 int err = 0; 574 int err = 0;
556 575
576 /* find the first VMA at or above 'addr' */
577 vma = find_vma(walk->mm, addr);
557 for (; addr != end; addr += PAGE_SIZE) { 578 for (; addr != end; addr += PAGE_SIZE) {
558 u64 pfn = PM_NOT_PRESENT; 579 u64 pfn = PM_NOT_PRESENT;
559 pte = pte_offset_map(pmd, addr); 580
560 if (is_swap_pte(*pte)) 581 /* check to see if we've left 'vma' behind
561 pfn = PM_PFRAME(swap_pte_to_pagemap_entry(*pte)) 582 * and need a new, higher one */
562 | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP; 583 if (vma && (addr >= vma->vm_end))
563 else if (pte_present(*pte)) 584 vma = find_vma(walk->mm, addr);
564 pfn = PM_PFRAME(pte_pfn(*pte)) 585
565 | PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT; 586 /* check that 'vma' actually covers this address,
566 /* unmap so we're not in atomic when we copy to userspace */ 587 * and that it isn't a huge page vma */
567 pte_unmap(pte); 588 if (vma && (vma->vm_start <= addr) &&
589 !is_vm_hugetlb_page(vma)) {
590 pte = pte_offset_map(pmd, addr);
591 pfn = pte_to_pagemap_entry(*pte);
592 /* unmap before userspace copy */
593 pte_unmap(pte);
594 }
568 err = add_to_pagemap(addr, pfn, pm); 595 err = add_to_pagemap(addr, pfn, pm);
569 if (err) 596 if (err)
570 return err; 597 return err;
@@ -675,8 +702,8 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
675 * user buffer is tracked in "pm", and the walk 702 * user buffer is tracked in "pm", and the walk
676 * will stop when we hit the end of the buffer. 703 * will stop when we hit the end of the buffer.
677 */ 704 */
678 ret = walk_page_range(mm, start_vaddr, end_vaddr, 705 ret = walk_page_range(start_vaddr, end_vaddr,
679 &pagemap_walk, &pm); 706 &pagemap_walk);
680 if (ret == PM_END_OF_BUFFER) 707 if (ret == PM_END_OF_BUFFER)
681 ret = 0; 708 ret = 0;
682 /* don't need mmap_sem for these, but this looks cleaner */ 709 /* don't need mmap_sem for these, but this looks cleaner */
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 8fa9c2d70911..8ec865de5f13 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -16,7 +16,7 @@
16#define UDF_PREALLOCATE 16#define UDF_PREALLOCATE
17#define UDF_DEFAULT_PREALLOC_BLOCKS 8 17#define UDF_DEFAULT_PREALLOC_BLOCKS 8
18 18
19#define UDFFS_DEBUG 19#undef UDFFS_DEBUG
20 20
21#ifdef UDFFS_DEBUG 21#ifdef UDFFS_DEBUG
22#define udf_debug(f, a...) \ 22#define udf_debug(f, a...) \
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 19:32:00 -0500