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-rw-r--r--Documentation/filesystems/gfs2-uevents.txt100
-rw-r--r--fs/gfs2/Makefile2
-rw-r--r--fs/gfs2/acl.c106
-rw-r--r--fs/gfs2/dentry.c18
-rw-r--r--fs/gfs2/eaops.c157
-rw-r--r--fs/gfs2/eaops.h30
-rw-r--r--fs/gfs2/export.c36
-rw-r--r--fs/gfs2/file.c1
-rw-r--r--fs/gfs2/incore.h15
-rw-r--r--fs/gfs2/inode.c159
-rw-r--r--fs/gfs2/ops_fstype.c66
-rw-r--r--fs/gfs2/ops_inode.c82
-rw-r--r--fs/gfs2/rgrp.c82
-rw-r--r--fs/gfs2/rgrp.h6
-rw-r--r--fs/gfs2/super.c46
-rw-r--r--fs/gfs2/super.h5
-rw-r--r--fs/gfs2/sys.c31
-rw-r--r--fs/gfs2/util.c41
-rw-r--r--fs/gfs2/xattr.c (renamed from fs/gfs2/eattr.c)425
-rw-r--r--fs/gfs2/xattr.h (renamed from fs/gfs2/eattr.h)54
-rw-r--r--include/linux/gfs2_ondisk.h22
21 files changed, 678 insertions, 806 deletions
diff --git a/Documentation/filesystems/gfs2-uevents.txt b/Documentation/filesystems/gfs2-uevents.txt
new file mode 100644
index 000000000000..fd966dc9979a
--- /dev/null
+++ b/Documentation/filesystems/gfs2-uevents.txt
@@ -0,0 +1,100 @@
1 uevents and GFS2
2 ==================
3
4During the lifetime of a GFS2 mount, a number of uevents are generated.
5This document explains what the events are and what they are used
6for (by gfs_controld in gfs2-utils).
7
8A list of GFS2 uevents
9-----------------------
10
111. ADD
12
13The ADD event occurs at mount time. It will always be the first
14uevent generated by the newly created filesystem. If the mount
15is successful, an ONLINE uevent will follow. If it is not successful
16then a REMOVE uevent will follow.
17
18The ADD uevent has two environment variables: SPECTATOR=[0|1]
19and RDONLY=[0|1] that specify the spectator status (a read-only mount
20with no journal assigned), and read-only (with journal assigned) status
21of the filesystem respectively.
22
232. ONLINE
24
25The ONLINE uevent is generated after a successful mount or remount. It
26has the same environment variables as the ADD uevent. The ONLINE
27uevent, along with the two environment variables for spectator and
28RDONLY are a relatively recent addition (2.6.32-rc+) and will not
29be generated by older kernels.
30
313. CHANGE
32
33The CHANGE uevent is used in two places. One is when reporting the
34successful mount of the filesystem by the first node (FIRSTMOUNT=Done).
35This is used as a signal by gfs_controld that it is then ok for other
36nodes in the cluster to mount the filesystem.
37
38The other CHANGE uevent is used to inform of the completion
39of journal recovery for one of the filesystems journals. It has
40two environment variables, JID= which specifies the journal id which
41has just been recovered, and RECOVERY=[Done|Failed] to indicate the
42success (or otherwise) of the operation. These uevents are generated
43for every journal recovered, whether it is during the initial mount
44process or as the result of gfs_controld requesting a specific journal
45recovery via the /sys/fs/gfs2/<fsname>/lock_module/recovery file.
46
47Because the CHANGE uevent was used (in early versions of gfs_controld)
48without checking the environment variables to discover the state, we
49cannot add any more functions to it without running the risk of
50someone using an older version of the user tools and breaking their
51cluster. For this reason the ONLINE uevent was used when adding a new
52uevent for a successful mount or remount.
53
544. OFFLINE
55
56The OFFLINE uevent is only generated due to filesystem errors and is used
57as part of the "withdraw" mechanism. Currently this doesn't give any
58information about what the error is, which is something that needs to
59be fixed.
60
615. REMOVE
62
63The REMOVE uevent is generated at the end of an unsuccessful mount
64or at the end of a umount of the filesystem. All REMOVE uevents will
65have been preceeded by at least an ADD uevent for the same fileystem,
66and unlike the other uevents is generated automatically by the kernel's
67kobject subsystem.
68
69
70Information common to all GFS2 uevents (uevent environment variables)
71----------------------------------------------------------------------
72
731. LOCKTABLE=
74
75The LOCKTABLE is a string, as supplied on the mount command
76line (locktable=) or via fstab. It is used as a filesystem label
77as well as providing the information for a lock_dlm mount to be
78able to join the cluster.
79
802. LOCKPROTO=
81
82The LOCKPROTO is a string, and its value depends on what is set
83on the mount command line, or via fstab. It will be either
84lock_nolock or lock_dlm. In the future other lock managers
85may be supported.
86
873. JOURNALID=
88
89If a journal is in use by the filesystem (journals are not
90assigned for spectator mounts) then this will give the
91numeric journal id in all GFS2 uevents.
92
934. UUID=
94
95With recent versions of gfs2-utils, mkfs.gfs2 writes a UUID
96into the filesystem superblock. If it exists, this will
97be included in every uevent relating to the filesystem.
98
99
100
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index 3da2f1f4f738..21f7e46da4c0 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -1,6 +1,6 @@
1EXTRA_CFLAGS := -I$(src) 1EXTRA_CFLAGS := -I$(src)
2obj-$(CONFIG_GFS2_FS) += gfs2.o 2obj-$(CONFIG_GFS2_FS) += gfs2.o
3gfs2-y := acl.o bmap.o dir.o eaops.o eattr.o glock.o \ 3gfs2-y := acl.o bmap.o dir.o xattr.o glock.o \
4 glops.o inode.o log.o lops.o main.o meta_io.o \ 4 glops.o inode.o log.o lops.o main.o meta_io.o \
5 aops.o dentry.o export.o file.o \ 5 aops.o dentry.o export.o file.o \
6 ops_fstype.o ops_inode.o quota.o \ 6 ops_fstype.o ops_inode.o quota.o \
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index fa881bdc3d85..3fc4e3ac7d84 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -19,8 +19,7 @@
19#include "gfs2.h" 19#include "gfs2.h"
20#include "incore.h" 20#include "incore.h"
21#include "acl.h" 21#include "acl.h"
22#include "eaops.h" 22#include "xattr.h"
23#include "eattr.h"
24#include "glock.h" 23#include "glock.h"
25#include "inode.h" 24#include "inode.h"
26#include "meta_io.h" 25#include "meta_io.h"
@@ -31,8 +30,7 @@
31#define ACL_DEFAULT 0 30#define ACL_DEFAULT 0
32 31
33int gfs2_acl_validate_set(struct gfs2_inode *ip, int access, 32int gfs2_acl_validate_set(struct gfs2_inode *ip, int access,
34 struct gfs2_ea_request *er, 33 struct gfs2_ea_request *er, int *remove, mode_t *mode)
35 int *remove, mode_t *mode)
36{ 34{
37 struct posix_acl *acl; 35 struct posix_acl *acl;
38 int error; 36 int error;
@@ -83,30 +81,20 @@ int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access)
83 return 0; 81 return 0;
84} 82}
85 83
86static int acl_get(struct gfs2_inode *ip, int access, struct posix_acl **acl, 84static int acl_get(struct gfs2_inode *ip, const char *name,
87 struct gfs2_ea_location *el, char **data, unsigned int *len) 85 struct posix_acl **acl, struct gfs2_ea_location *el,
86 char **datap, unsigned int *lenp)
88{ 87{
89 struct gfs2_ea_request er; 88 char *data;
90 struct gfs2_ea_location el_this; 89 unsigned int len;
91 int error; 90 int error;
92 91
92 el->el_bh = NULL;
93
93 if (!ip->i_eattr) 94 if (!ip->i_eattr)
94 return 0; 95 return 0;
95 96
96 memset(&er, 0, sizeof(struct gfs2_ea_request)); 97 error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, el);
97 if (access) {
98 er.er_name = GFS2_POSIX_ACL_ACCESS;
99 er.er_name_len = GFS2_POSIX_ACL_ACCESS_LEN;
100 } else {
101 er.er_name = GFS2_POSIX_ACL_DEFAULT;
102 er.er_name_len = GFS2_POSIX_ACL_DEFAULT_LEN;
103 }
104 er.er_type = GFS2_EATYPE_SYS;
105
106 if (!el)
107 el = &el_this;
108
109 error = gfs2_ea_find(ip, &er, el);
110 if (error) 98 if (error)
111 return error; 99 return error;
112 if (!el->el_ea) 100 if (!el->el_ea)
@@ -114,32 +102,31 @@ static int acl_get(struct gfs2_inode *ip, int access, struct posix_acl **acl,
114 if (!GFS2_EA_DATA_LEN(el->el_ea)) 102 if (!GFS2_EA_DATA_LEN(el->el_ea))
115 goto out; 103 goto out;
116 104
117 er.er_data_len = GFS2_EA_DATA_LEN(el->el_ea); 105 len = GFS2_EA_DATA_LEN(el->el_ea);
118 er.er_data = kmalloc(er.er_data_len, GFP_NOFS); 106 data = kmalloc(len, GFP_NOFS);
119 error = -ENOMEM; 107 error = -ENOMEM;
120 if (!er.er_data) 108 if (!data)
121 goto out; 109 goto out;
122 110
123 error = gfs2_ea_get_copy(ip, el, er.er_data); 111 error = gfs2_ea_get_copy(ip, el, data, len);
124 if (error) 112 if (error < 0)
125 goto out_kfree; 113 goto out_kfree;
114 error = 0;
126 115
127 if (acl) { 116 if (acl) {
128 *acl = posix_acl_from_xattr(er.er_data, er.er_data_len); 117 *acl = posix_acl_from_xattr(data, len);
129 if (IS_ERR(*acl)) 118 if (IS_ERR(*acl))
130 error = PTR_ERR(*acl); 119 error = PTR_ERR(*acl);
131 } 120 }
132 121
133out_kfree: 122out_kfree:
134 if (error || !data) 123 if (error || !datap) {
135 kfree(er.er_data); 124 kfree(data);
136 else { 125 } else {
137 *data = er.er_data; 126 *datap = data;
138 *len = er.er_data_len; 127 *lenp = len;
139 } 128 }
140out: 129out:
141 if (error || el == &el_this)
142 brelse(el->el_bh);
143 return error; 130 return error;
144} 131}
145 132
@@ -153,10 +140,12 @@ out:
153 140
154int gfs2_check_acl(struct inode *inode, int mask) 141int gfs2_check_acl(struct inode *inode, int mask)
155{ 142{
143 struct gfs2_ea_location el;
156 struct posix_acl *acl = NULL; 144 struct posix_acl *acl = NULL;
157 int error; 145 int error;
158 146
159 error = acl_get(GFS2_I(inode), ACL_ACCESS, &acl, NULL, NULL, NULL); 147 error = acl_get(GFS2_I(inode), GFS2_POSIX_ACL_ACCESS, &acl, &el, NULL, NULL);
148 brelse(el.el_bh);
160 if (error) 149 if (error)
161 return error; 150 return error;
162 151
@@ -196,10 +185,12 @@ static int munge_mode(struct gfs2_inode *ip, mode_t mode)
196 185
197int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip) 186int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
198{ 187{
188 struct gfs2_ea_location el;
199 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 189 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
200 struct posix_acl *acl = NULL, *clone; 190 struct posix_acl *acl = NULL, *clone;
201 struct gfs2_ea_request er;
202 mode_t mode = ip->i_inode.i_mode; 191 mode_t mode = ip->i_inode.i_mode;
192 char *data = NULL;
193 unsigned int len;
203 int error; 194 int error;
204 195
205 if (!sdp->sd_args.ar_posix_acl) 196 if (!sdp->sd_args.ar_posix_acl)
@@ -207,11 +198,8 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
207 if (S_ISLNK(ip->i_inode.i_mode)) 198 if (S_ISLNK(ip->i_inode.i_mode))
208 return 0; 199 return 0;
209 200
210 memset(&er, 0, sizeof(struct gfs2_ea_request)); 201 error = acl_get(dip, GFS2_POSIX_ACL_DEFAULT, &acl, &el, &data, &len);
211 er.er_type = GFS2_EATYPE_SYS; 202 brelse(el.el_bh);
212
213 error = acl_get(dip, ACL_DEFAULT, &acl, NULL,
214 &er.er_data, &er.er_data_len);
215 if (error) 203 if (error)
216 return error; 204 return error;
217 if (!acl) { 205 if (!acl) {
@@ -229,9 +217,8 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
229 acl = clone; 217 acl = clone;
230 218
231 if (S_ISDIR(ip->i_inode.i_mode)) { 219 if (S_ISDIR(ip->i_inode.i_mode)) {
232 er.er_name = GFS2_POSIX_ACL_DEFAULT; 220 error = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SYS,
233 er.er_name_len = GFS2_POSIX_ACL_DEFAULT_LEN; 221 GFS2_POSIX_ACL_DEFAULT, data, len, 0);
234 error = gfs2_system_eaops.eo_set(ip, &er);
235 if (error) 222 if (error)
236 goto out; 223 goto out;
237 } 224 }
@@ -239,21 +226,19 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
239 error = posix_acl_create_masq(acl, &mode); 226 error = posix_acl_create_masq(acl, &mode);
240 if (error < 0) 227 if (error < 0)
241 goto out; 228 goto out;
242 if (error > 0) { 229 if (error == 0)
243 er.er_name = GFS2_POSIX_ACL_ACCESS; 230 goto munge;
244 er.er_name_len = GFS2_POSIX_ACL_ACCESS_LEN;
245 posix_acl_to_xattr(acl, er.er_data, er.er_data_len);
246 er.er_mode = mode;
247 er.er_flags = GFS2_ERF_MODE;
248 error = gfs2_system_eaops.eo_set(ip, &er);
249 if (error)
250 goto out;
251 } else
252 munge_mode(ip, mode);
253 231
232 posix_acl_to_xattr(acl, data, len);
233 error = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SYS,
234 GFS2_POSIX_ACL_ACCESS, data, len, 0);
235 if (error)
236 goto out;
237munge:
238 error = munge_mode(ip, mode);
254out: 239out:
255 posix_acl_release(acl); 240 posix_acl_release(acl);
256 kfree(er.er_data); 241 kfree(data);
257 return error; 242 return error;
258} 243}
259 244
@@ -265,9 +250,9 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
265 unsigned int len; 250 unsigned int len;
266 int error; 251 int error;
267 252
268 error = acl_get(ip, ACL_ACCESS, &acl, &el, &data, &len); 253 error = acl_get(ip, GFS2_POSIX_ACL_ACCESS, &acl, &el, &data, &len);
269 if (error) 254 if (error)
270 return error; 255 goto out_brelse;
271 if (!acl) 256 if (!acl)
272 return gfs2_setattr_simple(ip, attr); 257 return gfs2_setattr_simple(ip, attr);
273 258
@@ -286,8 +271,9 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
286 271
287out: 272out:
288 posix_acl_release(acl); 273 posix_acl_release(acl);
289 brelse(el.el_bh);
290 kfree(data); 274 kfree(data);
275out_brelse:
276 brelse(el.el_bh);
291 return error; 277 return error;
292} 278}
293 279
diff --git a/fs/gfs2/dentry.c b/fs/gfs2/dentry.c
index 022c66cd5606..91beddadd388 100644
--- a/fs/gfs2/dentry.c
+++ b/fs/gfs2/dentry.c
@@ -107,8 +107,26 @@ static int gfs2_dhash(struct dentry *dentry, struct qstr *str)
107 return 0; 107 return 0;
108} 108}
109 109
110static int gfs2_dentry_delete(struct dentry *dentry)
111{
112 struct gfs2_inode *ginode;
113
114 if (!dentry->d_inode)
115 return 0;
116
117 ginode = GFS2_I(dentry->d_inode);
118 if (!ginode->i_iopen_gh.gh_gl)
119 return 0;
120
121 if (test_bit(GLF_DEMOTE, &ginode->i_iopen_gh.gh_gl->gl_flags))
122 return 1;
123
124 return 0;
125}
126
110const struct dentry_operations gfs2_dops = { 127const struct dentry_operations gfs2_dops = {
111 .d_revalidate = gfs2_drevalidate, 128 .d_revalidate = gfs2_drevalidate,
112 .d_hash = gfs2_dhash, 129 .d_hash = gfs2_dhash,
130 .d_delete = gfs2_dentry_delete,
113}; 131};
114 132
diff --git a/fs/gfs2/eaops.c b/fs/gfs2/eaops.c
deleted file mode 100644
index dee9b03e5b37..000000000000
--- a/fs/gfs2/eaops.c
+++ /dev/null
@@ -1,157 +0,0 @@
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License version 2.
8 */
9
10#include <linux/slab.h>
11#include <linux/spinlock.h>
12#include <linux/completion.h>
13#include <linux/buffer_head.h>
14#include <linux/capability.h>
15#include <linux/xattr.h>
16#include <linux/gfs2_ondisk.h>
17#include <asm/uaccess.h>
18
19#include "gfs2.h"
20#include "incore.h"
21#include "acl.h"
22#include "eaops.h"
23#include "eattr.h"
24#include "util.h"
25
26/**
27 * gfs2_ea_name2type - get the type of the ea, and truncate type from the name
28 * @namep: ea name, possibly with type appended
29 *
30 * Returns: GFS2_EATYPE_XXX
31 */
32
33unsigned int gfs2_ea_name2type(const char *name, const char **truncated_name)
34{
35 unsigned int type;
36
37 if (strncmp(name, "system.", 7) == 0) {
38 type = GFS2_EATYPE_SYS;
39 if (truncated_name)
40 *truncated_name = name + sizeof("system.") - 1;
41 } else if (strncmp(name, "user.", 5) == 0) {
42 type = GFS2_EATYPE_USR;
43 if (truncated_name)
44 *truncated_name = name + sizeof("user.") - 1;
45 } else if (strncmp(name, "security.", 9) == 0) {
46 type = GFS2_EATYPE_SECURITY;
47 if (truncated_name)
48 *truncated_name = name + sizeof("security.") - 1;
49 } else {
50 type = GFS2_EATYPE_UNUSED;
51 if (truncated_name)
52 *truncated_name = NULL;
53 }
54
55 return type;
56}
57
58static int system_eo_get(struct gfs2_inode *ip, struct gfs2_ea_request *er)
59{
60 if (!GFS2_ACL_IS_ACCESS(er->er_name, er->er_name_len) &&
61 !GFS2_ACL_IS_DEFAULT(er->er_name, er->er_name_len) &&
62 !capable(CAP_SYS_ADMIN))
63 return -EPERM;
64
65 if (GFS2_SB(&ip->i_inode)->sd_args.ar_posix_acl == 0 &&
66 (GFS2_ACL_IS_ACCESS(er->er_name, er->er_name_len) ||
67 GFS2_ACL_IS_DEFAULT(er->er_name, er->er_name_len)))
68 return -EOPNOTSUPP;
69
70 return gfs2_ea_get_i(ip, er);
71}
72
73static int system_eo_set(struct gfs2_inode *ip, struct gfs2_ea_request *er)
74{
75 int remove = 0;
76 int error;
77
78 if (GFS2_ACL_IS_ACCESS(er->er_name, er->er_name_len)) {
79 if (!(er->er_flags & GFS2_ERF_MODE)) {
80 er->er_mode = ip->i_inode.i_mode;
81 er->er_flags |= GFS2_ERF_MODE;
82 }
83 error = gfs2_acl_validate_set(ip, 1, er,
84 &remove, &er->er_mode);
85 if (error)
86 return error;
87 error = gfs2_ea_set_i(ip, er);
88 if (error)
89 return error;
90 if (remove)
91 gfs2_ea_remove_i(ip, er);
92 return 0;
93
94 } else if (GFS2_ACL_IS_DEFAULT(er->er_name, er->er_name_len)) {
95 error = gfs2_acl_validate_set(ip, 0, er,
96 &remove, NULL);
97 if (error)
98 return error;
99 if (!remove)
100 error = gfs2_ea_set_i(ip, er);
101 else {
102 error = gfs2_ea_remove_i(ip, er);
103 if (error == -ENODATA)
104 error = 0;
105 }
106 return error;
107 }
108
109 return -EPERM;
110}
111
112static int system_eo_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er)
113{
114 if (GFS2_ACL_IS_ACCESS(er->er_name, er->er_name_len)) {
115 int error = gfs2_acl_validate_remove(ip, 1);
116 if (error)
117 return error;
118
119 } else if (GFS2_ACL_IS_DEFAULT(er->er_name, er->er_name_len)) {
120 int error = gfs2_acl_validate_remove(ip, 0);
121 if (error)
122 return error;
123
124 } else
125 return -EPERM;
126
127 return gfs2_ea_remove_i(ip, er);
128}
129
130static const struct gfs2_eattr_operations gfs2_user_eaops = {
131 .eo_get = gfs2_ea_get_i,
132 .eo_set = gfs2_ea_set_i,
133 .eo_remove = gfs2_ea_remove_i,
134 .eo_name = "user",
135};
136
137const struct gfs2_eattr_operations gfs2_system_eaops = {
138 .eo_get = system_eo_get,
139 .eo_set = system_eo_set,
140 .eo_remove = system_eo_remove,
141 .eo_name = "system",
142};
143
144static const struct gfs2_eattr_operations gfs2_security_eaops = {
145 .eo_get = gfs2_ea_get_i,
146 .eo_set = gfs2_ea_set_i,
147 .eo_remove = gfs2_ea_remove_i,
148 .eo_name = "security",
149};
150
151const struct gfs2_eattr_operations *gfs2_ea_ops[] = {
152 NULL,
153 &gfs2_user_eaops,
154 &gfs2_system_eaops,
155 &gfs2_security_eaops,
156};
157
diff --git a/fs/gfs2/eaops.h b/fs/gfs2/eaops.h
deleted file mode 100644
index da2f7fbbb40d..000000000000
--- a/fs/gfs2/eaops.h
+++ /dev/null
@@ -1,30 +0,0 @@
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License version 2.
8 */
9
10#ifndef __EAOPS_DOT_H__
11#define __EAOPS_DOT_H__
12
13struct gfs2_ea_request;
14struct gfs2_inode;
15
16struct gfs2_eattr_operations {
17 int (*eo_get) (struct gfs2_inode *ip, struct gfs2_ea_request *er);
18 int (*eo_set) (struct gfs2_inode *ip, struct gfs2_ea_request *er);
19 int (*eo_remove) (struct gfs2_inode *ip, struct gfs2_ea_request *er);
20 char *eo_name;
21};
22
23unsigned int gfs2_ea_name2type(const char *name, const char **truncated_name);
24
25extern const struct gfs2_eattr_operations gfs2_system_eaops;
26
27extern const struct gfs2_eattr_operations *gfs2_ea_ops[];
28
29#endif /* __EAOPS_DOT_H__ */
30
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index 9200ef221716..d15876e9aa26 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -143,17 +143,14 @@ static struct dentry *gfs2_get_parent(struct dentry *child)
143} 143}
144 144
145static struct dentry *gfs2_get_dentry(struct super_block *sb, 145static struct dentry *gfs2_get_dentry(struct super_block *sb,
146 struct gfs2_inum_host *inum) 146 struct gfs2_inum_host *inum)
147{ 147{
148 struct gfs2_sbd *sdp = sb->s_fs_info; 148 struct gfs2_sbd *sdp = sb->s_fs_info;
149 struct gfs2_holder i_gh, ri_gh, rgd_gh; 149 struct gfs2_holder i_gh;
150 struct gfs2_rgrpd *rgd;
151 struct inode *inode; 150 struct inode *inode;
152 struct dentry *dentry; 151 struct dentry *dentry;
153 int error; 152 int error;
154 153
155 /* System files? */
156
157 inode = gfs2_ilookup(sb, inum->no_addr); 154 inode = gfs2_ilookup(sb, inum->no_addr);
158 if (inode) { 155 if (inode) {
159 if (GFS2_I(inode)->i_no_formal_ino != inum->no_formal_ino) { 156 if (GFS2_I(inode)->i_no_formal_ino != inum->no_formal_ino) {
@@ -168,29 +165,11 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
168 if (error) 165 if (error)
169 return ERR_PTR(error); 166 return ERR_PTR(error);
170 167
171 error = gfs2_rindex_hold(sdp, &ri_gh); 168 error = gfs2_check_blk_type(sdp, inum->no_addr, GFS2_BLKST_DINODE);
172 if (error) 169 if (error)
173 goto fail; 170 goto fail;
174 171
175 error = -EINVAL; 172 inode = gfs2_inode_lookup(sb, DT_UNKNOWN, inum->no_addr, 0, 0);
176 rgd = gfs2_blk2rgrpd(sdp, inum->no_addr);
177 if (!rgd)
178 goto fail_rindex;
179
180 error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_SHARED, 0, &rgd_gh);
181 if (error)
182 goto fail_rindex;
183
184 error = -ESTALE;
185 if (gfs2_get_block_type(rgd, inum->no_addr) != GFS2_BLKST_DINODE)
186 goto fail_rgd;
187
188 gfs2_glock_dq_uninit(&rgd_gh);
189 gfs2_glock_dq_uninit(&ri_gh);
190
191 inode = gfs2_inode_lookup(sb, DT_UNKNOWN,
192 inum->no_addr,
193 0, 0);
194 if (IS_ERR(inode)) { 173 if (IS_ERR(inode)) {
195 error = PTR_ERR(inode); 174 error = PTR_ERR(inode);
196 goto fail; 175 goto fail;
@@ -224,13 +203,6 @@ out_inode:
224 if (!IS_ERR(dentry)) 203 if (!IS_ERR(dentry))
225 dentry->d_op = &gfs2_dops; 204 dentry->d_op = &gfs2_dops;
226 return dentry; 205 return dentry;
227
228fail_rgd:
229 gfs2_glock_dq_uninit(&rgd_gh);
230
231fail_rindex:
232 gfs2_glock_dq_uninit(&ri_gh);
233
234fail: 206fail:
235 gfs2_glock_dq_uninit(&i_gh); 207 gfs2_glock_dq_uninit(&i_gh);
236 return ERR_PTR(error); 208 return ERR_PTR(error);
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 73318a3ce6f1..166f38fbd246 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -38,7 +38,6 @@
38#include "rgrp.h" 38#include "rgrp.h"
39#include "trans.h" 39#include "trans.h"
40#include "util.h" 40#include "util.h"
41#include "eaops.h"
42 41
43/** 42/**
44 * gfs2_llseek - seek to a location in a file 43 * gfs2_llseek - seek to a location in a file
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 61801ada36f0..6edb423f90b3 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -406,6 +406,12 @@ struct gfs2_statfs_change_host {
406#define GFS2_DATA_WRITEBACK 1 406#define GFS2_DATA_WRITEBACK 1
407#define GFS2_DATA_ORDERED 2 407#define GFS2_DATA_ORDERED 2
408 408
409#define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW
410#define GFS2_ERRORS_WITHDRAW 0
411#define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */
412#define GFS2_ERRORS_RO 2 /* place holder for future feature */
413#define GFS2_ERRORS_PANIC 3
414
409struct gfs2_args { 415struct gfs2_args {
410 char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ 416 char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */
411 char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ 417 char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */
@@ -422,6 +428,7 @@ struct gfs2_args {
422 unsigned int ar_data:2; /* ordered/writeback */ 428 unsigned int ar_data:2; /* ordered/writeback */
423 unsigned int ar_meta:1; /* mount metafs */ 429 unsigned int ar_meta:1; /* mount metafs */
424 unsigned int ar_discard:1; /* discard requests */ 430 unsigned int ar_discard:1; /* discard requests */
431 unsigned int ar_errors:2; /* errors=withdraw | panic */
425 int ar_commit; /* Commit interval */ 432 int ar_commit; /* Commit interval */
426}; 433};
427 434
@@ -489,7 +496,6 @@ struct gfs2_sb_host {
489 */ 496 */
490 497
491struct lm_lockstruct { 498struct lm_lockstruct {
492 u32 ls_id;
493 unsigned int ls_jid; 499 unsigned int ls_jid;
494 unsigned int ls_first; 500 unsigned int ls_first;
495 unsigned int ls_first_done; 501 unsigned int ls_first_done;
@@ -541,18 +547,12 @@ struct gfs2_sbd {
541 struct dentry *sd_root_dir; 547 struct dentry *sd_root_dir;
542 548
543 struct inode *sd_jindex; 549 struct inode *sd_jindex;
544 struct inode *sd_inum_inode;
545 struct inode *sd_statfs_inode; 550 struct inode *sd_statfs_inode;
546 struct inode *sd_ir_inode;
547 struct inode *sd_sc_inode; 551 struct inode *sd_sc_inode;
548 struct inode *sd_qc_inode; 552 struct inode *sd_qc_inode;
549 struct inode *sd_rindex; 553 struct inode *sd_rindex;
550 struct inode *sd_quota_inode; 554 struct inode *sd_quota_inode;
551 555
552 /* Inum stuff */
553
554 struct mutex sd_inum_mutex;
555
556 /* StatFS stuff */ 556 /* StatFS stuff */
557 557
558 spinlock_t sd_statfs_spin; 558 spinlock_t sd_statfs_spin;
@@ -580,7 +580,6 @@ struct gfs2_sbd {
580 struct gfs2_holder sd_journal_gh; 580 struct gfs2_holder sd_journal_gh;
581 struct gfs2_holder sd_jinode_gh; 581 struct gfs2_holder sd_jinode_gh;
582 582
583 struct gfs2_holder sd_ir_gh;
584 struct gfs2_holder sd_sc_gh; 583 struct gfs2_holder sd_sc_gh;
585 struct gfs2_holder sd_qc_gh; 584 struct gfs2_holder sd_qc_gh;
586 585
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 2f94bd723698..fb15d3b1f409 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -24,7 +24,7 @@
24#include "acl.h" 24#include "acl.h"
25#include "bmap.h" 25#include "bmap.h"
26#include "dir.h" 26#include "dir.h"
27#include "eattr.h" 27#include "xattr.h"
28#include "glock.h" 28#include "glock.h"
29#include "glops.h" 29#include "glops.h"
30#include "inode.h" 30#include "inode.h"
@@ -519,139 +519,6 @@ out:
519 return inode ? inode : ERR_PTR(error); 519 return inode ? inode : ERR_PTR(error);
520} 520}
521 521
522static void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf)
523{
524 const struct gfs2_inum_range *str = buf;
525
526 ir->ir_start = be64_to_cpu(str->ir_start);
527 ir->ir_length = be64_to_cpu(str->ir_length);
528}
529
530static void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf)
531{
532 struct gfs2_inum_range *str = buf;
533
534 str->ir_start = cpu_to_be64(ir->ir_start);
535 str->ir_length = cpu_to_be64(ir->ir_length);
536}
537
538static int pick_formal_ino_1(struct gfs2_sbd *sdp, u64 *formal_ino)
539{
540 struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode);
541 struct buffer_head *bh;
542 struct gfs2_inum_range_host ir;
543 int error;
544
545 error = gfs2_trans_begin(sdp, RES_DINODE, 0);
546 if (error)
547 return error;
548 mutex_lock(&sdp->sd_inum_mutex);
549
550 error = gfs2_meta_inode_buffer(ip, &bh);
551 if (error) {
552 mutex_unlock(&sdp->sd_inum_mutex);
553 gfs2_trans_end(sdp);
554 return error;
555 }
556
557 gfs2_inum_range_in(&ir, bh->b_data + sizeof(struct gfs2_dinode));
558
559 if (ir.ir_length) {
560 *formal_ino = ir.ir_start++;
561 ir.ir_length--;
562 gfs2_trans_add_bh(ip->i_gl, bh, 1);
563 gfs2_inum_range_out(&ir,
564 bh->b_data + sizeof(struct gfs2_dinode));
565 brelse(bh);
566 mutex_unlock(&sdp->sd_inum_mutex);
567 gfs2_trans_end(sdp);
568 return 0;
569 }
570
571 brelse(bh);
572
573 mutex_unlock(&sdp->sd_inum_mutex);
574 gfs2_trans_end(sdp);
575
576 return 1;
577}
578
579static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino)
580{
581 struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode);
582 struct gfs2_inode *m_ip = GFS2_I(sdp->sd_inum_inode);
583 struct gfs2_holder gh;
584 struct buffer_head *bh;
585 struct gfs2_inum_range_host ir;
586 int error;
587
588 error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
589 if (error)
590 return error;
591
592 error = gfs2_trans_begin(sdp, 2 * RES_DINODE, 0);
593 if (error)
594 goto out;
595 mutex_lock(&sdp->sd_inum_mutex);
596
597 error = gfs2_meta_inode_buffer(ip, &bh);
598 if (error)
599 goto out_end_trans;
600
601 gfs2_inum_range_in(&ir, bh->b_data + sizeof(struct gfs2_dinode));
602
603 if (!ir.ir_length) {
604 struct buffer_head *m_bh;
605 u64 x, y;
606 __be64 z;
607
608 error = gfs2_meta_inode_buffer(m_ip, &m_bh);
609 if (error)
610 goto out_brelse;
611
612 z = *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
613 x = y = be64_to_cpu(z);
614 ir.ir_start = x;
615 ir.ir_length = GFS2_INUM_QUANTUM;
616 x += GFS2_INUM_QUANTUM;
617 if (x < y)
618 gfs2_consist_inode(m_ip);
619 z = cpu_to_be64(x);
620 gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1);
621 *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = z;
622
623 brelse(m_bh);
624 }
625
626 *formal_ino = ir.ir_start++;
627 ir.ir_length--;
628
629 gfs2_trans_add_bh(ip->i_gl, bh, 1);
630 gfs2_inum_range_out(&ir, bh->b_data + sizeof(struct gfs2_dinode));
631
632out_brelse:
633 brelse(bh);
634out_end_trans:
635 mutex_unlock(&sdp->sd_inum_mutex);
636 gfs2_trans_end(sdp);
637out:
638 gfs2_glock_dq_uninit(&gh);
639 return error;
640}
641
642static int pick_formal_ino(struct gfs2_sbd *sdp, u64 *inum)
643{
644 int error;
645
646 error = pick_formal_ino_1(sdp, inum);
647 if (error <= 0)
648 return error;
649
650 error = pick_formal_ino_2(sdp, inum);
651
652 return error;
653}
654
655/** 522/**
656 * create_ok - OK to create a new on-disk inode here? 523 * create_ok - OK to create a new on-disk inode here?
657 * @dip: Directory in which dinode is to be created 524 * @dip: Directory in which dinode is to be created
@@ -731,7 +598,7 @@ static int alloc_dinode(struct gfs2_inode *dip, u64 *no_addr, u64 *generation)
731 if (error) 598 if (error)
732 goto out_ipreserv; 599 goto out_ipreserv;
733 600
734 *no_addr = gfs2_alloc_di(dip, generation); 601 error = gfs2_alloc_di(dip, no_addr, generation);
735 602
736 gfs2_trans_end(sdp); 603 gfs2_trans_end(sdp);
737 604
@@ -924,7 +791,6 @@ static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip)
924 size_t len; 791 size_t len;
925 void *value; 792 void *value;
926 char *name; 793 char *name;
927 struct gfs2_ea_request er;
928 794
929 err = security_inode_init_security(&ip->i_inode, &dip->i_inode, 795 err = security_inode_init_security(&ip->i_inode, &dip->i_inode,
930 &name, &value, &len); 796 &name, &value, &len);
@@ -935,16 +801,7 @@ static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip)
935 return err; 801 return err;
936 } 802 }
937 803
938 memset(&er, 0, sizeof(struct gfs2_ea_request)); 804 err = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SECURITY, name, value, len, 0);
939
940 er.er_type = GFS2_EATYPE_SECURITY;
941 er.er_name = name;
942 er.er_data = value;
943 er.er_name_len = strlen(name);
944 er.er_data_len = len;
945
946 err = gfs2_ea_set_i(ip, &er);
947
948 kfree(value); 805 kfree(value);
949 kfree(name); 806 kfree(name);
950 807
@@ -991,13 +848,10 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
991 if (error) 848 if (error)
992 goto fail_gunlock; 849 goto fail_gunlock;
993 850
994 error = pick_formal_ino(sdp, &inum.no_formal_ino);
995 if (error)
996 goto fail_gunlock;
997
998 error = alloc_dinode(dip, &inum.no_addr, &generation); 851 error = alloc_dinode(dip, &inum.no_addr, &generation);
999 if (error) 852 if (error)
1000 goto fail_gunlock; 853 goto fail_gunlock;
854 inum.no_formal_ino = generation;
1001 855
1002 error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops, 856 error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops,
1003 LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1); 857 LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
@@ -1008,9 +862,8 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
1008 if (error) 862 if (error)
1009 goto fail_gunlock2; 863 goto fail_gunlock2;
1010 864
1011 inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), 865 inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
1012 inum.no_addr, 866 inum.no_formal_ino, 0);
1013 inum.no_formal_ino, 0);
1014 if (IS_ERR(inode)) 867 if (IS_ERR(inode))
1015 goto fail_gunlock2; 868 goto fail_gunlock2;
1016 869
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 7bc3c45cd676..52fb6c048981 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -84,7 +84,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
84 84
85 gfs2_tune_init(&sdp->sd_tune); 85 gfs2_tune_init(&sdp->sd_tune);
86 86
87 mutex_init(&sdp->sd_inum_mutex);
88 spin_lock_init(&sdp->sd_statfs_spin); 87 spin_lock_init(&sdp->sd_statfs_spin);
89 88
90 spin_lock_init(&sdp->sd_rindex_spin); 89 spin_lock_init(&sdp->sd_rindex_spin);
@@ -833,21 +832,12 @@ static int init_inodes(struct gfs2_sbd *sdp, int undo)
833 if (error) 832 if (error)
834 goto fail; 833 goto fail;
835 834
836 /* Read in the master inode number inode */
837 sdp->sd_inum_inode = gfs2_lookup_simple(master, "inum");
838 if (IS_ERR(sdp->sd_inum_inode)) {
839 error = PTR_ERR(sdp->sd_inum_inode);
840 fs_err(sdp, "can't read in inum inode: %d\n", error);
841 goto fail_journal;
842 }
843
844
845 /* Read in the master statfs inode */ 835 /* Read in the master statfs inode */
846 sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs"); 836 sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs");
847 if (IS_ERR(sdp->sd_statfs_inode)) { 837 if (IS_ERR(sdp->sd_statfs_inode)) {
848 error = PTR_ERR(sdp->sd_statfs_inode); 838 error = PTR_ERR(sdp->sd_statfs_inode);
849 fs_err(sdp, "can't read in statfs inode: %d\n", error); 839 fs_err(sdp, "can't read in statfs inode: %d\n", error);
850 goto fail_inum; 840 goto fail_journal;
851 } 841 }
852 842
853 /* Read in the resource index inode */ 843 /* Read in the resource index inode */
@@ -876,8 +866,6 @@ fail_rindex:
876 iput(sdp->sd_rindex); 866 iput(sdp->sd_rindex);
877fail_statfs: 867fail_statfs:
878 iput(sdp->sd_statfs_inode); 868 iput(sdp->sd_statfs_inode);
879fail_inum:
880 iput(sdp->sd_inum_inode);
881fail_journal: 869fail_journal:
882 init_journal(sdp, UNDO); 870 init_journal(sdp, UNDO);
883fail: 871fail:
@@ -905,20 +893,12 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
905 return error; 893 return error;
906 } 894 }
907 895
908 sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid);
909 sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf);
910 if (IS_ERR(sdp->sd_ir_inode)) {
911 error = PTR_ERR(sdp->sd_ir_inode);
912 fs_err(sdp, "can't find local \"ir\" file: %d\n", error);
913 goto fail;
914 }
915
916 sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); 896 sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid);
917 sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); 897 sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf);
918 if (IS_ERR(sdp->sd_sc_inode)) { 898 if (IS_ERR(sdp->sd_sc_inode)) {
919 error = PTR_ERR(sdp->sd_sc_inode); 899 error = PTR_ERR(sdp->sd_sc_inode);
920 fs_err(sdp, "can't find local \"sc\" file: %d\n", error); 900 fs_err(sdp, "can't find local \"sc\" file: %d\n", error);
921 goto fail_ir_i; 901 goto fail;
922 } 902 }
923 903
924 sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); 904 sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid);
@@ -932,27 +912,16 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
932 iput(pn); 912 iput(pn);
933 pn = NULL; 913 pn = NULL;
934 914
935 ip = GFS2_I(sdp->sd_ir_inode);
936 error = gfs2_glock_nq_init(ip->i_gl,
937 LM_ST_EXCLUSIVE, 0,
938 &sdp->sd_ir_gh);
939 if (error) {
940 fs_err(sdp, "can't lock local \"ir\" file: %d\n", error);
941 goto fail_qc_i;
942 }
943
944 ip = GFS2_I(sdp->sd_sc_inode); 915 ip = GFS2_I(sdp->sd_sc_inode);
945 error = gfs2_glock_nq_init(ip->i_gl, 916 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
946 LM_ST_EXCLUSIVE, 0,
947 &sdp->sd_sc_gh); 917 &sdp->sd_sc_gh);
948 if (error) { 918 if (error) {
949 fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); 919 fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
950 goto fail_ir_gh; 920 goto fail_qc_i;
951 } 921 }
952 922
953 ip = GFS2_I(sdp->sd_qc_inode); 923 ip = GFS2_I(sdp->sd_qc_inode);
954 error = gfs2_glock_nq_init(ip->i_gl, 924 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
955 LM_ST_EXCLUSIVE, 0,
956 &sdp->sd_qc_gh); 925 &sdp->sd_qc_gh);
957 if (error) { 926 if (error) {
958 fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); 927 fs_err(sdp, "can't lock local \"qc\" file: %d\n", error);
@@ -965,14 +934,10 @@ fail_qc_gh:
965 gfs2_glock_dq_uninit(&sdp->sd_qc_gh); 934 gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
966fail_ut_gh: 935fail_ut_gh:
967 gfs2_glock_dq_uninit(&sdp->sd_sc_gh); 936 gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
968fail_ir_gh:
969 gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
970fail_qc_i: 937fail_qc_i:
971 iput(sdp->sd_qc_inode); 938 iput(sdp->sd_qc_inode);
972fail_ut_i: 939fail_ut_i:
973 iput(sdp->sd_sc_inode); 940 iput(sdp->sd_sc_inode);
974fail_ir_i:
975 iput(sdp->sd_ir_inode);
976fail: 941fail:
977 if (pn) 942 if (pn)
978 iput(pn); 943 iput(pn);
@@ -1063,7 +1028,6 @@ static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
1063 1028
1064 ls->ls_ops = lm; 1029 ls->ls_ops = lm;
1065 ls->ls_first = 1; 1030 ls->ls_first = 1;
1066 ls->ls_id = 0;
1067 1031
1068 for (options = args->ar_hostdata; (o = strsep(&options, ":")); ) { 1032 for (options = args->ar_hostdata; (o = strsep(&options, ":")); ) {
1069 substring_t tmp[MAX_OPT_ARGS]; 1033 substring_t tmp[MAX_OPT_ARGS];
@@ -1081,10 +1045,7 @@ static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
1081 ls->ls_jid = option; 1045 ls->ls_jid = option;
1082 break; 1046 break;
1083 case Opt_id: 1047 case Opt_id:
1084 ret = match_int(&tmp[0], &option); 1048 /* Obsolete, but left for backward compat purposes */
1085 if (ret)
1086 goto hostdata_error;
1087 ls->ls_id = option;
1088 break; 1049 break;
1089 case Opt_first: 1050 case Opt_first:
1090 ret = match_int(&tmp[0], &option); 1051 ret = match_int(&tmp[0], &option);
@@ -1133,6 +1094,17 @@ void gfs2_lm_unmount(struct gfs2_sbd *sdp)
1133 lm->lm_unmount(sdp); 1094 lm->lm_unmount(sdp);
1134} 1095}
1135 1096
1097void gfs2_online_uevent(struct gfs2_sbd *sdp)
1098{
1099 struct super_block *sb = sdp->sd_vfs;
1100 char ro[20];
1101 char spectator[20];
1102 char *envp[] = { ro, spectator, NULL };
1103 sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
1104 sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
1105 kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp);
1106}
1107
1136/** 1108/**
1137 * fill_super - Read in superblock 1109 * fill_super - Read in superblock
1138 * @sb: The VFS superblock 1110 * @sb: The VFS superblock
@@ -1157,6 +1129,7 @@ static int fill_super(struct super_block *sb, void *data, int silent)
1157 sdp->sd_args.ar_quota = GFS2_QUOTA_DEFAULT; 1129 sdp->sd_args.ar_quota = GFS2_QUOTA_DEFAULT;
1158 sdp->sd_args.ar_data = GFS2_DATA_DEFAULT; 1130 sdp->sd_args.ar_data = GFS2_DATA_DEFAULT;
1159 sdp->sd_args.ar_commit = 60; 1131 sdp->sd_args.ar_commit = 60;
1132 sdp->sd_args.ar_errors = GFS2_ERRORS_DEFAULT;
1160 1133
1161 error = gfs2_mount_args(sdp, &sdp->sd_args, data); 1134 error = gfs2_mount_args(sdp, &sdp->sd_args, data);
1162 if (error) { 1135 if (error) {
@@ -1174,6 +1147,7 @@ static int fill_super(struct super_block *sb, void *data, int silent)
1174 sb->s_magic = GFS2_MAGIC; 1147 sb->s_magic = GFS2_MAGIC;
1175 sb->s_op = &gfs2_super_ops; 1148 sb->s_op = &gfs2_super_ops;
1176 sb->s_export_op = &gfs2_export_ops; 1149 sb->s_export_op = &gfs2_export_ops;
1150 sb->s_xattr = gfs2_xattr_handlers;
1177 sb->s_time_gran = 1; 1151 sb->s_time_gran = 1;
1178 sb->s_maxbytes = MAX_LFS_FILESIZE; 1152 sb->s_maxbytes = MAX_LFS_FILESIZE;
1179 1153
@@ -1236,7 +1210,7 @@ static int fill_super(struct super_block *sb, void *data, int silent)
1236 } 1210 }
1237 1211
1238 gfs2_glock_dq_uninit(&mount_gh); 1212 gfs2_glock_dq_uninit(&mount_gh);
1239 1213 gfs2_online_uevent(sdp);
1240 return 0; 1214 return 0;
1241 1215
1242fail_threads: 1216fail_threads:
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index f8bd20baf99c..c3ac18054057 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -26,8 +26,7 @@
26#include "acl.h" 26#include "acl.h"
27#include "bmap.h" 27#include "bmap.h"
28#include "dir.h" 28#include "dir.h"
29#include "eaops.h" 29#include "xattr.h"
30#include "eattr.h"
31#include "glock.h" 30#include "glock.h"
32#include "inode.h" 31#include "inode.h"
33#include "meta_io.h" 32#include "meta_io.h"
@@ -349,7 +348,7 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
349 348
350 error = gfs2_trans_begin(sdp, 2*RES_DINODE + RES_LEAF + RES_RG_BIT, 0); 349 error = gfs2_trans_begin(sdp, 2*RES_DINODE + RES_LEAF + RES_RG_BIT, 0);
351 if (error) 350 if (error)
352 goto out_rgrp; 351 goto out_gunlock;
353 352
354 error = gfs2_dir_del(dip, &dentry->d_name); 353 error = gfs2_dir_del(dip, &dentry->d_name);
355 if (error) 354 if (error)
@@ -1302,60 +1301,53 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name,
1302 const void *data, size_t size, int flags) 1301 const void *data, size_t size, int flags)
1303{ 1302{
1304 struct inode *inode = dentry->d_inode; 1303 struct inode *inode = dentry->d_inode;
1305 struct gfs2_ea_request er; 1304 struct gfs2_inode *ip = GFS2_I(inode);
1306 1305 struct gfs2_holder gh;
1307 memset(&er, 0, sizeof(struct gfs2_ea_request)); 1306 int ret;
1308 er.er_type = gfs2_ea_name2type(name, &er.er_name);
1309 if (er.er_type == GFS2_EATYPE_UNUSED)
1310 return -EOPNOTSUPP;
1311 er.er_data = (char *)data;
1312 er.er_name_len = strlen(er.er_name);
1313 er.er_data_len = size;
1314 er.er_flags = flags;
1315
1316 gfs2_assert_warn(GFS2_SB(inode), !(er.er_flags & GFS2_ERF_MODE));
1317 1307
1318 return gfs2_ea_set(GFS2_I(inode), &er); 1308 gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
1309 ret = gfs2_glock_nq(&gh);
1310 if (ret == 0) {
1311 ret = generic_setxattr(dentry, name, data, size, flags);
1312 gfs2_glock_dq(&gh);
1313 }
1314 gfs2_holder_uninit(&gh);
1315 return ret;
1319} 1316}
1320 1317
1321static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, 1318static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name,
1322 void *data, size_t size) 1319 void *data, size_t size)
1323{ 1320{
1324 struct gfs2_ea_request er; 1321 struct inode *inode = dentry->d_inode;
1325 1322 struct gfs2_inode *ip = GFS2_I(inode);
1326 memset(&er, 0, sizeof(struct gfs2_ea_request)); 1323 struct gfs2_holder gh;
1327 er.er_type = gfs2_ea_name2type(name, &er.er_name); 1324 int ret;
1328 if (er.er_type == GFS2_EATYPE_UNUSED)
1329 return -EOPNOTSUPP;
1330 er.er_data = data;
1331 er.er_name_len = strlen(er.er_name);
1332 er.er_data_len = size;
1333
1334 return gfs2_ea_get(GFS2_I(dentry->d_inode), &er);
1335}
1336
1337static ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
1338{
1339 struct gfs2_ea_request er;
1340
1341 memset(&er, 0, sizeof(struct gfs2_ea_request));
1342 er.er_data = (size) ? buffer : NULL;
1343 er.er_data_len = size;
1344 1325
1345 return gfs2_ea_list(GFS2_I(dentry->d_inode), &er); 1326 gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
1327 ret = gfs2_glock_nq(&gh);
1328 if (ret == 0) {
1329 ret = generic_getxattr(dentry, name, data, size);
1330 gfs2_glock_dq(&gh);
1331 }
1332 gfs2_holder_uninit(&gh);
1333 return ret;
1346} 1334}
1347 1335
1348static int gfs2_removexattr(struct dentry *dentry, const char *name) 1336static int gfs2_removexattr(struct dentry *dentry, const char *name)
1349{ 1337{
1350 struct gfs2_ea_request er; 1338 struct inode *inode = dentry->d_inode;
1351 1339 struct gfs2_inode *ip = GFS2_I(inode);
1352 memset(&er, 0, sizeof(struct gfs2_ea_request)); 1340 struct gfs2_holder gh;
1353 er.er_type = gfs2_ea_name2type(name, &er.er_name); 1341 int ret;
1354 if (er.er_type == GFS2_EATYPE_UNUSED)
1355 return -EOPNOTSUPP;
1356 er.er_name_len = strlen(er.er_name);
1357 1342
1358 return gfs2_ea_remove(GFS2_I(dentry->d_inode), &er); 1343 gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
1344 ret = gfs2_glock_nq(&gh);
1345 if (ret == 0) {
1346 ret = generic_removexattr(dentry, name);
1347 gfs2_glock_dq(&gh);
1348 }
1349 gfs2_holder_uninit(&gh);
1350 return ret;
1359} 1351}
1360 1352
1361static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 1353static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index fba795798d3a..18d3a28554ac 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1256,7 +1256,7 @@ void gfs2_inplace_release(struct gfs2_inode *ip)
1256 * Returns: The block type (GFS2_BLKST_*) 1256 * Returns: The block type (GFS2_BLKST_*)
1257 */ 1257 */
1258 1258
1259unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block) 1259static unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block)
1260{ 1260{
1261 struct gfs2_bitmap *bi = NULL; 1261 struct gfs2_bitmap *bi = NULL;
1262 u32 length, rgrp_block, buf_block; 1262 u32 length, rgrp_block, buf_block;
@@ -1459,6 +1459,16 @@ int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl)
1459 return 0; 1459 return 0;
1460} 1460}
1461 1461
1462static void gfs2_rgrp_error(struct gfs2_rgrpd *rgd)
1463{
1464 struct gfs2_sbd *sdp = rgd->rd_sbd;
1465 fs_warn(sdp, "rgrp %llu has an error, marking it readonly until umount\n",
1466 (unsigned long long)rgd->rd_addr);
1467 fs_warn(sdp, "umount on all nodes and run fsck.gfs2 to fix the error\n");
1468 gfs2_rgrp_dump(NULL, rgd->rd_gl);
1469 rgd->rd_flags |= GFS2_RDF_ERROR;
1470}
1471
1462/** 1472/**
1463 * gfs2_alloc_block - Allocate one or more blocks 1473 * gfs2_alloc_block - Allocate one or more blocks
1464 * @ip: the inode to allocate the block for 1474 * @ip: the inode to allocate the block for
@@ -1520,22 +1530,20 @@ int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n)
1520 return 0; 1530 return 0;
1521 1531
1522rgrp_error: 1532rgrp_error:
1523 fs_warn(sdp, "rgrp %llu has an error, marking it readonly until umount\n", 1533 gfs2_rgrp_error(rgd);
1524 (unsigned long long)rgd->rd_addr);
1525 fs_warn(sdp, "umount on all nodes and run fsck.gfs2 to fix the error\n");
1526 gfs2_rgrp_dump(NULL, rgd->rd_gl);
1527 rgd->rd_flags |= GFS2_RDF_ERROR;
1528 return -EIO; 1534 return -EIO;
1529} 1535}
1530 1536
1531/** 1537/**
1532 * gfs2_alloc_di - Allocate a dinode 1538 * gfs2_alloc_di - Allocate a dinode
1533 * @dip: the directory that the inode is going in 1539 * @dip: the directory that the inode is going in
1540 * @bn: the block number which is allocated
1541 * @generation: the generation number of the inode
1534 * 1542 *
1535 * Returns: the block allocated 1543 * Returns: 0 on success or error
1536 */ 1544 */
1537 1545
1538u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation) 1546int gfs2_alloc_di(struct gfs2_inode *dip, u64 *bn, u64 *generation)
1539{ 1547{
1540 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 1548 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
1541 struct gfs2_alloc *al = dip->i_alloc; 1549 struct gfs2_alloc *al = dip->i_alloc;
@@ -1546,16 +1554,21 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
1546 1554
1547 blk = rgblk_search(rgd, rgd->rd_last_alloc, 1555 blk = rgblk_search(rgd, rgd->rd_last_alloc,
1548 GFS2_BLKST_FREE, GFS2_BLKST_DINODE, &n); 1556 GFS2_BLKST_FREE, GFS2_BLKST_DINODE, &n);
1549 BUG_ON(blk == BFITNOENT);
1550 1557
1551 rgd->rd_last_alloc = blk; 1558 /* Since all blocks are reserved in advance, this shouldn't happen */
1559 if (blk == BFITNOENT)
1560 goto rgrp_error;
1552 1561
1562 rgd->rd_last_alloc = blk;
1553 block = rgd->rd_data0 + blk; 1563 block = rgd->rd_data0 + blk;
1564 if (rgd->rd_free == 0)
1565 goto rgrp_error;
1554 1566
1555 gfs2_assert_withdraw(sdp, rgd->rd_free);
1556 rgd->rd_free--; 1567 rgd->rd_free--;
1557 rgd->rd_dinodes++; 1568 rgd->rd_dinodes++;
1558 *generation = rgd->rd_igeneration++; 1569 *generation = rgd->rd_igeneration++;
1570 if (*generation == 0)
1571 *generation = rgd->rd_igeneration++;
1559 gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1); 1572 gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
1560 gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data); 1573 gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
1561 1574
@@ -1568,7 +1581,12 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
1568 rgd->rd_free_clone--; 1581 rgd->rd_free_clone--;
1569 spin_unlock(&sdp->sd_rindex_spin); 1582 spin_unlock(&sdp->sd_rindex_spin);
1570 trace_gfs2_block_alloc(dip, block, 1, GFS2_BLKST_DINODE); 1583 trace_gfs2_block_alloc(dip, block, 1, GFS2_BLKST_DINODE);
1571 return block; 1584 *bn = block;
1585 return 0;
1586
1587rgrp_error:
1588 gfs2_rgrp_error(rgd);
1589 return -EIO;
1572} 1590}
1573 1591
1574/** 1592/**
@@ -1676,6 +1694,46 @@ void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip)
1676} 1694}
1677 1695
1678/** 1696/**
1697 * gfs2_check_blk_type - Check the type of a block
1698 * @sdp: The superblock
1699 * @no_addr: The block number to check
1700 * @type: The block type we are looking for
1701 *
1702 * Returns: 0 if the block type matches the expected type
1703 * -ESTALE if it doesn't match
1704 * or -ve errno if something went wrong while checking
1705 */
1706
1707int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, unsigned int type)
1708{
1709 struct gfs2_rgrpd *rgd;
1710 struct gfs2_holder ri_gh, rgd_gh;
1711 int error;
1712
1713 error = gfs2_rindex_hold(sdp, &ri_gh);
1714 if (error)
1715 goto fail;
1716
1717 error = -EINVAL;
1718 rgd = gfs2_blk2rgrpd(sdp, no_addr);
1719 if (!rgd)
1720 goto fail_rindex;
1721
1722 error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_SHARED, 0, &rgd_gh);
1723 if (error)
1724 goto fail_rindex;
1725
1726 if (gfs2_get_block_type(rgd, no_addr) != type)
1727 error = -ESTALE;
1728
1729 gfs2_glock_dq_uninit(&rgd_gh);
1730fail_rindex:
1731 gfs2_glock_dq_uninit(&ri_gh);
1732fail:
1733 return error;
1734}
1735
1736/**
1679 * gfs2_rlist_add - add a RG to a list of RGs 1737 * gfs2_rlist_add - add a RG to a list of RGs
1680 * @sdp: the filesystem 1738 * @sdp: the filesystem
1681 * @rlist: the list of resource groups 1739 * @rlist: the list of resource groups
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 1e76ff0f3e00..b4106ddaaa98 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -44,15 +44,15 @@ gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
44 44
45extern void gfs2_inplace_release(struct gfs2_inode *ip); 45extern void gfs2_inplace_release(struct gfs2_inode *ip);
46 46
47extern unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
48
49extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n); 47extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n);
50extern u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation); 48extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation);
51 49
52extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen); 50extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
53extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen); 51extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
54extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); 52extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
55extern void gfs2_unlink_di(struct inode *inode); 53extern void gfs2_unlink_di(struct inode *inode);
54extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
55 unsigned int type);
56 56
57struct gfs2_rgrp_list { 57struct gfs2_rgrp_list {
58 unsigned int rl_rgrps; 58 unsigned int rl_rgrps;
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index f522bb017973..0ec3ec672de1 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -38,7 +38,7 @@
38#include "trans.h" 38#include "trans.h"
39#include "util.h" 39#include "util.h"
40#include "sys.h" 40#include "sys.h"
41#include "eattr.h" 41#include "xattr.h"
42 42
43#define args_neq(a1, a2, x) ((a1)->ar_##x != (a2)->ar_##x) 43#define args_neq(a1, a2, x) ((a1)->ar_##x != (a2)->ar_##x)
44 44
@@ -68,6 +68,8 @@ enum {
68 Opt_discard, 68 Opt_discard,
69 Opt_nodiscard, 69 Opt_nodiscard,
70 Opt_commit, 70 Opt_commit,
71 Opt_err_withdraw,
72 Opt_err_panic,
71 Opt_error, 73 Opt_error,
72}; 74};
73 75
@@ -97,6 +99,8 @@ static const match_table_t tokens = {
97 {Opt_discard, "discard"}, 99 {Opt_discard, "discard"},
98 {Opt_nodiscard, "nodiscard"}, 100 {Opt_nodiscard, "nodiscard"},
99 {Opt_commit, "commit=%d"}, 101 {Opt_commit, "commit=%d"},
102 {Opt_err_withdraw, "errors=withdraw"},
103 {Opt_err_panic, "errors=panic"},
100 {Opt_error, NULL} 104 {Opt_error, NULL}
101}; 105};
102 106
@@ -152,6 +156,11 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
152 args->ar_localcaching = 1; 156 args->ar_localcaching = 1;
153 break; 157 break;
154 case Opt_debug: 158 case Opt_debug:
159 if (args->ar_errors == GFS2_ERRORS_PANIC) {
160 fs_info(sdp, "-o debug and -o errors=panic "
161 "are mutually exclusive.\n");
162 return -EINVAL;
163 }
155 args->ar_debug = 1; 164 args->ar_debug = 1;
156 break; 165 break;
157 case Opt_nodebug: 166 case Opt_nodebug:
@@ -205,6 +214,17 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
205 return rv ? rv : -EINVAL; 214 return rv ? rv : -EINVAL;
206 } 215 }
207 break; 216 break;
217 case Opt_err_withdraw:
218 args->ar_errors = GFS2_ERRORS_WITHDRAW;
219 break;
220 case Opt_err_panic:
221 if (args->ar_debug) {
222 fs_info(sdp, "-o debug and -o errors=panic "
223 "are mutually exclusive.\n");
224 return -EINVAL;
225 }
226 args->ar_errors = GFS2_ERRORS_PANIC;
227 break;
208 case Opt_error: 228 case Opt_error:
209 default: 229 default:
210 fs_info(sdp, "invalid mount option: %s\n", o); 230 fs_info(sdp, "invalid mount option: %s\n", o);
@@ -768,7 +788,6 @@ restart:
768 /* Release stuff */ 788 /* Release stuff */
769 789
770 iput(sdp->sd_jindex); 790 iput(sdp->sd_jindex);
771 iput(sdp->sd_inum_inode);
772 iput(sdp->sd_statfs_inode); 791 iput(sdp->sd_statfs_inode);
773 iput(sdp->sd_rindex); 792 iput(sdp->sd_rindex);
774 iput(sdp->sd_quota_inode); 793 iput(sdp->sd_quota_inode);
@@ -779,10 +798,8 @@ restart:
779 if (!sdp->sd_args.ar_spectator) { 798 if (!sdp->sd_args.ar_spectator) {
780 gfs2_glock_dq_uninit(&sdp->sd_journal_gh); 799 gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
781 gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); 800 gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
782 gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
783 gfs2_glock_dq_uninit(&sdp->sd_sc_gh); 801 gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
784 gfs2_glock_dq_uninit(&sdp->sd_qc_gh); 802 gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
785 iput(sdp->sd_ir_inode);
786 iput(sdp->sd_sc_inode); 803 iput(sdp->sd_sc_inode);
787 iput(sdp->sd_qc_inode); 804 iput(sdp->sd_qc_inode);
788 } 805 }
@@ -1084,6 +1101,7 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
1084 gt->gt_log_flush_secs = args.ar_commit; 1101 gt->gt_log_flush_secs = args.ar_commit;
1085 spin_unlock(&gt->gt_spin); 1102 spin_unlock(&gt->gt_spin);
1086 1103
1104 gfs2_online_uevent(sdp);
1087 return 0; 1105 return 0;
1088} 1106}
1089 1107
@@ -1225,6 +1243,22 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
1225 lfsecs = sdp->sd_tune.gt_log_flush_secs; 1243 lfsecs = sdp->sd_tune.gt_log_flush_secs;
1226 if (lfsecs != 60) 1244 if (lfsecs != 60)
1227 seq_printf(s, ",commit=%d", lfsecs); 1245 seq_printf(s, ",commit=%d", lfsecs);
1246 if (args->ar_errors != GFS2_ERRORS_DEFAULT) {
1247 const char *state;
1248
1249 switch (args->ar_errors) {
1250 case GFS2_ERRORS_WITHDRAW:
1251 state = "withdraw";
1252 break;
1253 case GFS2_ERRORS_PANIC:
1254 state = "panic";
1255 break;
1256 default:
1257 state = "unknown";
1258 break;
1259 }
1260 seq_printf(s, ",errors=%s", state);
1261 }
1228 return 0; 1262 return 0;
1229} 1263}
1230 1264
@@ -1252,6 +1286,10 @@ static void gfs2_delete_inode(struct inode *inode)
1252 goto out; 1286 goto out;
1253 } 1287 }
1254 1288
1289 error = gfs2_check_blk_type(sdp, ip->i_no_addr, GFS2_BLKST_UNLINKED);
1290 if (error)
1291 goto out_truncate;
1292
1255 gfs2_glock_dq_wait(&ip->i_iopen_gh); 1293 gfs2_glock_dq_wait(&ip->i_iopen_gh);
1256 gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh); 1294 gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
1257 error = gfs2_glock_nq(&ip->i_iopen_gh); 1295 error = gfs2_glock_nq(&ip->i_iopen_gh);
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 22e0417ed996..235db3682885 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -25,7 +25,7 @@ static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
25 return x; 25 return x;
26} 26}
27 27
28void gfs2_jindex_free(struct gfs2_sbd *sdp); 28extern void gfs2_jindex_free(struct gfs2_sbd *sdp);
29 29
30extern int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *data); 30extern int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *data);
31 31
@@ -36,7 +36,7 @@ extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
36 struct gfs2_inode **ipp); 36 struct gfs2_inode **ipp);
37 37
38extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp); 38extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
39 39extern void gfs2_online_uevent(struct gfs2_sbd *sdp);
40extern int gfs2_statfs_init(struct gfs2_sbd *sdp); 40extern int gfs2_statfs_init(struct gfs2_sbd *sdp);
41extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free, 41extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
42 s64 dinodes); 42 s64 dinodes);
@@ -54,6 +54,7 @@ extern struct file_system_type gfs2meta_fs_type;
54extern const struct export_operations gfs2_export_ops; 54extern const struct export_operations gfs2_export_ops;
55extern const struct super_operations gfs2_super_ops; 55extern const struct super_operations gfs2_super_ops;
56extern const struct dentry_operations gfs2_dops; 56extern const struct dentry_operations gfs2_dops;
57extern struct xattr_handler *gfs2_xattr_handlers[];
57 58
58#endif /* __SUPER_DOT_H__ */ 59#endif /* __SUPER_DOT_H__ */
59 60
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index a7cbfbd340c7..446329728d52 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -16,6 +16,7 @@
16#include <linux/kobject.h> 16#include <linux/kobject.h>
17#include <asm/uaccess.h> 17#include <asm/uaccess.h>
18#include <linux/gfs2_ondisk.h> 18#include <linux/gfs2_ondisk.h>
19#include <linux/genhd.h>
19 20
20#include "gfs2.h" 21#include "gfs2.h"
21#include "incore.h" 22#include "incore.h"
@@ -319,12 +320,6 @@ static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
319 return ret; 320 return ret;
320} 321}
321 322
322static ssize_t lkid_show(struct gfs2_sbd *sdp, char *buf)
323{
324 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
325 return sprintf(buf, "%u\n", ls->ls_id);
326}
327
328static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf) 323static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf)
329{ 324{
330 struct lm_lockstruct *ls = &sdp->sd_lockstruct; 325 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
@@ -389,7 +384,6 @@ static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
389GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); 384GDLM_ATTR(proto_name, 0444, proto_name_show, NULL);
390GDLM_ATTR(block, 0644, block_show, block_store); 385GDLM_ATTR(block, 0644, block_show, block_store);
391GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 386GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
392GDLM_ATTR(id, 0444, lkid_show, NULL);
393GDLM_ATTR(jid, 0444, jid_show, NULL); 387GDLM_ATTR(jid, 0444, jid_show, NULL);
394GDLM_ATTR(first, 0444, lkfirst_show, NULL); 388GDLM_ATTR(first, 0444, lkfirst_show, NULL);
395GDLM_ATTR(first_done, 0444, first_done_show, NULL); 389GDLM_ATTR(first_done, 0444, first_done_show, NULL);
@@ -401,7 +395,6 @@ static struct attribute *lock_module_attrs[] = {
401 &gdlm_attr_proto_name.attr, 395 &gdlm_attr_proto_name.attr,
402 &gdlm_attr_block.attr, 396 &gdlm_attr_block.attr,
403 &gdlm_attr_withdraw.attr, 397 &gdlm_attr_withdraw.attr,
404 &gdlm_attr_id.attr,
405 &gdlm_attr_jid.attr, 398 &gdlm_attr_jid.attr,
406 &gdlm_attr_first.attr, 399 &gdlm_attr_first.attr,
407 &gdlm_attr_first_done.attr, 400 &gdlm_attr_first_done.attr,
@@ -519,7 +512,14 @@ static struct attribute_group lock_module_group = {
519 512
520int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 513int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
521{ 514{
515 struct super_block *sb = sdp->sd_vfs;
522 int error; 516 int error;
517 char ro[20];
518 char spectator[20];
519 char *envp[] = { ro, spectator, NULL };
520
521 sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
522 sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
523 523
524 sdp->sd_kobj.kset = gfs2_kset; 524 sdp->sd_kobj.kset = gfs2_kset;
525 error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 525 error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL,
@@ -535,9 +535,17 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
535 if (error) 535 if (error)
536 goto fail_tune; 536 goto fail_tune;
537 537
538 kobject_uevent(&sdp->sd_kobj, KOBJ_ADD); 538 error = sysfs_create_link(&sdp->sd_kobj,
539 &disk_to_dev(sb->s_bdev->bd_disk)->kobj,
540 "device");
541 if (error)
542 goto fail_lock_module;
543
544 kobject_uevent_env(&sdp->sd_kobj, KOBJ_ADD, envp);
539 return 0; 545 return 0;
540 546
547fail_lock_module:
548 sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
541fail_tune: 549fail_tune:
542 sysfs_remove_group(&sdp->sd_kobj, &tune_group); 550 sysfs_remove_group(&sdp->sd_kobj, &tune_group);
543fail_reg: 551fail_reg:
@@ -549,12 +557,12 @@ fail:
549 557
550void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 558void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
551{ 559{
560 sysfs_remove_link(&sdp->sd_kobj, "device");
552 sysfs_remove_group(&sdp->sd_kobj, &tune_group); 561 sysfs_remove_group(&sdp->sd_kobj, &tune_group);
553 sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 562 sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
554 kobject_put(&sdp->sd_kobj); 563 kobject_put(&sdp->sd_kobj);
555} 564}
556 565
557
558static int gfs2_uevent(struct kset *kset, struct kobject *kobj, 566static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
559 struct kobj_uevent_env *env) 567 struct kobj_uevent_env *env)
560{ 568{
@@ -563,6 +571,8 @@ static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
563 571
564 add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 572 add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name);
565 add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 573 add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name);
574 if (!sdp->sd_args.ar_spectator)
575 add_uevent_var(env, "JOURNALID=%u", sdp->sd_lockstruct.ls_jid);
566 if (gfs2_uuid_valid(uuid)) { 576 if (gfs2_uuid_valid(uuid)) {
567 add_uevent_var(env, "UUID=%02X%02X%02X%02X-%02X%02X-%02X%02X-" 577 add_uevent_var(env, "UUID=%02X%02X%02X%02X-%02X%02X-%02X%02X-"
568 "%02X%02X-%02X%02X%02X%02X%02X%02X", 578 "%02X%02X-%02X%02X%02X%02X%02X%02X",
@@ -578,7 +588,6 @@ static struct kset_uevent_ops gfs2_uevent_ops = {
578 .uevent = gfs2_uevent, 588 .uevent = gfs2_uevent,
579}; 589};
580 590
581
582int gfs2_sys_init(void) 591int gfs2_sys_init(void)
583{ 592{
584 gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 593 gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj);
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 9d12b1118ba0..f6a7efa34eb9 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -38,24 +38,30 @@ int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
38 const struct lm_lockops *lm = ls->ls_ops; 38 const struct lm_lockops *lm = ls->ls_ops;
39 va_list args; 39 va_list args;
40 40
41 if (test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags)) 41 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
42 test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
42 return 0; 43 return 0;
43 44
44 va_start(args, fmt); 45 va_start(args, fmt);
45 vprintk(fmt, args); 46 vprintk(fmt, args);
46 va_end(args); 47 va_end(args);
47 48
48 fs_err(sdp, "about to withdraw this file system\n"); 49 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW) {
49 BUG_ON(sdp->sd_args.ar_debug); 50 fs_err(sdp, "about to withdraw this file system\n");
51 BUG_ON(sdp->sd_args.ar_debug);
50 52
51 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE); 53 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
52 54
53 if (lm->lm_unmount) { 55 if (lm->lm_unmount) {
54 fs_err(sdp, "telling LM to unmount\n"); 56 fs_err(sdp, "telling LM to unmount\n");
55 lm->lm_unmount(sdp); 57 lm->lm_unmount(sdp);
58 }
59 fs_err(sdp, "withdrawn\n");
60 dump_stack();
56 } 61 }
57 fs_err(sdp, "withdrawn\n"); 62
58 dump_stack(); 63 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
64 panic("GFS2: fsid=%s: panic requested.\n", sdp->sd_fsname);
59 65
60 return -1; 66 return -1;
61} 67}
@@ -93,17 +99,24 @@ int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
93 gfs2_tune_get(sdp, gt_complain_secs) * HZ)) 99 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
94 return -2; 100 return -2;
95 101
96 printk(KERN_WARNING 102 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
97 "GFS2: fsid=%s: warning: assertion \"%s\" failed\n" 103 printk(KERN_WARNING
98 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n", 104 "GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
99 sdp->sd_fsname, assertion, 105 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
100 sdp->sd_fsname, function, file, line); 106 sdp->sd_fsname, assertion,
107 sdp->sd_fsname, function, file, line);
101 108
102 if (sdp->sd_args.ar_debug) 109 if (sdp->sd_args.ar_debug)
103 BUG(); 110 BUG();
104 else 111 else
105 dump_stack(); 112 dump_stack();
106 113
114 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
115 panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
116 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
117 sdp->sd_fsname, assertion,
118 sdp->sd_fsname, function, file, line);
119
107 sdp->sd_last_warning = jiffies; 120 sdp->sd_last_warning = jiffies;
108 121
109 return -1; 122 return -1;
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/xattr.c
index 07ea9529adda..8a0f8ef6ee27 100644
--- a/fs/gfs2/eattr.c
+++ b/fs/gfs2/xattr.c
@@ -18,8 +18,7 @@
18#include "gfs2.h" 18#include "gfs2.h"
19#include "incore.h" 19#include "incore.h"
20#include "acl.h" 20#include "acl.h"
21#include "eaops.h" 21#include "xattr.h"
22#include "eattr.h"
23#include "glock.h" 22#include "glock.h"
24#include "inode.h" 23#include "inode.h"
25#include "meta_io.h" 24#include "meta_io.h"
@@ -38,26 +37,32 @@
38 * Returns: 1 if the EA should be stuffed 37 * Returns: 1 if the EA should be stuffed
39 */ 38 */
40 39
41static int ea_calc_size(struct gfs2_sbd *sdp, struct gfs2_ea_request *er, 40static int ea_calc_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize,
42 unsigned int *size) 41 unsigned int *size)
43{ 42{
44 *size = GFS2_EAREQ_SIZE_STUFFED(er); 43 unsigned int jbsize = sdp->sd_jbsize;
45 if (*size <= sdp->sd_jbsize) 44
45 /* Stuffed */
46 *size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + dsize, 8);
47
48 if (*size <= jbsize)
46 return 1; 49 return 1;
47 50
48 *size = GFS2_EAREQ_SIZE_UNSTUFFED(sdp, er); 51 /* Unstuffed */
52 *size = ALIGN(sizeof(struct gfs2_ea_header) + nsize +
53 (sizeof(__be64) * DIV_ROUND_UP(dsize, jbsize)), 8);
49 54
50 return 0; 55 return 0;
51} 56}
52 57
53static int ea_check_size(struct gfs2_sbd *sdp, struct gfs2_ea_request *er) 58static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize)
54{ 59{
55 unsigned int size; 60 unsigned int size;
56 61
57 if (er->er_data_len > GFS2_EA_MAX_DATA_LEN) 62 if (dsize > GFS2_EA_MAX_DATA_LEN)
58 return -ERANGE; 63 return -ERANGE;
59 64
60 ea_calc_size(sdp, er, &size); 65 ea_calc_size(sdp, nsize, dsize, &size);
61 66
62 /* This can only happen with 512 byte blocks */ 67 /* This can only happen with 512 byte blocks */
63 if (size > sdp->sd_jbsize) 68 if (size > sdp->sd_jbsize)
@@ -151,7 +156,9 @@ out:
151} 156}
152 157
153struct ea_find { 158struct ea_find {
154 struct gfs2_ea_request *ef_er; 159 int type;
160 const char *name;
161 size_t namel;
155 struct gfs2_ea_location *ef_el; 162 struct gfs2_ea_location *ef_el;
156}; 163};
157 164
@@ -160,14 +167,13 @@ static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh,
160 void *private) 167 void *private)
161{ 168{
162 struct ea_find *ef = private; 169 struct ea_find *ef = private;
163 struct gfs2_ea_request *er = ef->ef_er;
164 170
165 if (ea->ea_type == GFS2_EATYPE_UNUSED) 171 if (ea->ea_type == GFS2_EATYPE_UNUSED)
166 return 0; 172 return 0;
167 173
168 if (ea->ea_type == er->er_type) { 174 if (ea->ea_type == ef->type) {
169 if (ea->ea_name_len == er->er_name_len && 175 if (ea->ea_name_len == ef->namel &&
170 !memcmp(GFS2_EA2NAME(ea), er->er_name, ea->ea_name_len)) { 176 !memcmp(GFS2_EA2NAME(ea), ef->name, ea->ea_name_len)) {
171 struct gfs2_ea_location *el = ef->ef_el; 177 struct gfs2_ea_location *el = ef->ef_el;
172 get_bh(bh); 178 get_bh(bh);
173 el->el_bh = bh; 179 el->el_bh = bh;
@@ -180,13 +186,15 @@ static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh,
180 return 0; 186 return 0;
181} 187}
182 188
183int gfs2_ea_find(struct gfs2_inode *ip, struct gfs2_ea_request *er, 189int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
184 struct gfs2_ea_location *el) 190 struct gfs2_ea_location *el)
185{ 191{
186 struct ea_find ef; 192 struct ea_find ef;
187 int error; 193 int error;
188 194
189 ef.ef_er = er; 195 ef.type = type;
196 ef.name = name;
197 ef.namel = strlen(name);
190 ef.ef_el = el; 198 ef.ef_el = el;
191 199
192 memset(el, 0, sizeof(struct gfs2_ea_location)); 200 memset(el, 0, sizeof(struct gfs2_ea_location));
@@ -344,6 +352,20 @@ struct ea_list {
344 unsigned int ei_size; 352 unsigned int ei_size;
345}; 353};
346 354
355static inline unsigned int gfs2_ea_strlen(struct gfs2_ea_header *ea)
356{
357 switch (ea->ea_type) {
358 case GFS2_EATYPE_USR:
359 return 5 + ea->ea_name_len + 1;
360 case GFS2_EATYPE_SYS:
361 return 7 + ea->ea_name_len + 1;
362 case GFS2_EATYPE_SECURITY:
363 return 9 + ea->ea_name_len + 1;
364 default:
365 return 0;
366 }
367}
368
347static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh, 369static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
348 struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, 370 struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
349 void *private) 371 void *private)
@@ -392,21 +414,25 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
392} 414}
393 415
394/** 416/**
395 * gfs2_ea_list - 417 * gfs2_listxattr - List gfs2 extended attributes
396 * @ip: 418 * @dentry: The dentry whose inode we are interested in
397 * @er: 419 * @buffer: The buffer to write the results
420 * @size: The size of the buffer
398 * 421 *
399 * Returns: actual size of data on success, -errno on error 422 * Returns: actual size of data on success, -errno on error
400 */ 423 */
401 424
402int gfs2_ea_list(struct gfs2_inode *ip, struct gfs2_ea_request *er) 425ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
403{ 426{
427 struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
428 struct gfs2_ea_request er;
404 struct gfs2_holder i_gh; 429 struct gfs2_holder i_gh;
405 int error; 430 int error;
406 431
407 if (!er->er_data || !er->er_data_len) { 432 memset(&er, 0, sizeof(struct gfs2_ea_request));
408 er->er_data = NULL; 433 if (size) {
409 er->er_data_len = 0; 434 er.er_data = buffer;
435 er.er_data_len = size;
410 } 436 }
411 437
412 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh); 438 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
@@ -414,7 +440,7 @@ int gfs2_ea_list(struct gfs2_inode *ip, struct gfs2_ea_request *er)
414 return error; 440 return error;
415 441
416 if (ip->i_eattr) { 442 if (ip->i_eattr) {
417 struct ea_list ei = { .ei_er = er, .ei_size = 0 }; 443 struct ea_list ei = { .ei_er = &er, .ei_size = 0 };
418 444
419 error = ea_foreach(ip, ea_list_i, &ei); 445 error = ea_foreach(ip, ea_list_i, &ei);
420 if (!error) 446 if (!error)
@@ -491,84 +517,61 @@ out:
491} 517}
492 518
493int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el, 519int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
494 char *data) 520 char *data, size_t size)
495{ 521{
522 int ret;
523 size_t len = GFS2_EA_DATA_LEN(el->el_ea);
524 if (len > size)
525 return -ERANGE;
526
496 if (GFS2_EA_IS_STUFFED(el->el_ea)) { 527 if (GFS2_EA_IS_STUFFED(el->el_ea)) {
497 memcpy(data, GFS2_EA2DATA(el->el_ea), GFS2_EA_DATA_LEN(el->el_ea)); 528 memcpy(data, GFS2_EA2DATA(el->el_ea), len);
498 return 0; 529 return len;
499 } else 530 }
500 return ea_get_unstuffed(ip, el->el_ea, data); 531 ret = ea_get_unstuffed(ip, el->el_ea, data);
532 if (ret < 0)
533 return ret;
534 return len;
501} 535}
502 536
503/** 537/**
504 * gfs2_ea_get_i - 538 * gfs2_xattr_get - Get a GFS2 extended attribute
505 * @ip: The GFS2 inode 539 * @inode: The inode
506 * @er: The request structure 540 * @type: The type of extended attribute
541 * @name: The name of the extended attribute
542 * @buffer: The buffer to write the result into
543 * @size: The size of the buffer
507 * 544 *
508 * Returns: actual size of data on success, -errno on error 545 * Returns: actual size of data on success, -errno on error
509 */ 546 */
510 547
511int gfs2_ea_get_i(struct gfs2_inode *ip, struct gfs2_ea_request *er) 548int gfs2_xattr_get(struct inode *inode, int type, const char *name,
549 void *buffer, size_t size)
512{ 550{
551 struct gfs2_inode *ip = GFS2_I(inode);
513 struct gfs2_ea_location el; 552 struct gfs2_ea_location el;
514 int error; 553 int error;
515 554
516 if (!ip->i_eattr) 555 if (!ip->i_eattr)
517 return -ENODATA; 556 return -ENODATA;
557 if (strlen(name) > GFS2_EA_MAX_NAME_LEN)
558 return -EINVAL;
518 559
519 error = gfs2_ea_find(ip, er, &el); 560 error = gfs2_ea_find(ip, type, name, &el);
520 if (error) 561 if (error)
521 return error; 562 return error;
522 if (!el.el_ea) 563 if (!el.el_ea)
523 return -ENODATA; 564 return -ENODATA;
524 565 if (size)
525 if (er->er_data_len) { 566 error = gfs2_ea_get_copy(ip, &el, buffer, size);
526 if (GFS2_EA_DATA_LEN(el.el_ea) > er->er_data_len) 567 else
527 error = -ERANGE;
528 else
529 error = gfs2_ea_get_copy(ip, &el, er->er_data);
530 }
531 if (!error)
532 error = GFS2_EA_DATA_LEN(el.el_ea); 568 error = GFS2_EA_DATA_LEN(el.el_ea);
533
534 brelse(el.el_bh); 569 brelse(el.el_bh);
535 570
536 return error; 571 return error;
537} 572}
538 573
539/** 574/**
540 * gfs2_ea_get -
541 * @ip: The GFS2 inode
542 * @er: The request structure
543 *
544 * Returns: actual size of data on success, -errno on error
545 */
546
547int gfs2_ea_get(struct gfs2_inode *ip, struct gfs2_ea_request *er)
548{
549 struct gfs2_holder i_gh;
550 int error;
551
552 if (!er->er_name_len ||
553 er->er_name_len > GFS2_EA_MAX_NAME_LEN)
554 return -EINVAL;
555 if (!er->er_data || !er->er_data_len) {
556 er->er_data = NULL;
557 er->er_data_len = 0;
558 }
559
560 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
561 if (error)
562 return error;
563
564 error = gfs2_ea_ops[er->er_type]->eo_get(ip, er);
565
566 gfs2_glock_dq_uninit(&i_gh);
567
568 return error;
569}
570
571/**
572 * ea_alloc_blk - allocates a new block for extended attributes. 575 * ea_alloc_blk - allocates a new block for extended attributes.
573 * @ip: A pointer to the inode that's getting extended attributes 576 * @ip: A pointer to the inode that's getting extended attributes
574 * @bhp: Pointer to pointer to a struct buffer_head 577 * @bhp: Pointer to pointer to a struct buffer_head
@@ -713,12 +716,6 @@ static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
713 716
714 error = gfs2_meta_inode_buffer(ip, &dibh); 717 error = gfs2_meta_inode_buffer(ip, &dibh);
715 if (!error) { 718 if (!error) {
716 if (er->er_flags & GFS2_ERF_MODE) {
717 gfs2_assert_withdraw(GFS2_SB(&ip->i_inode),
718 (ip->i_inode.i_mode & S_IFMT) ==
719 (er->er_mode & S_IFMT));
720 ip->i_inode.i_mode = er->er_mode;
721 }
722 ip->i_inode.i_ctime = CURRENT_TIME; 719 ip->i_inode.i_ctime = CURRENT_TIME;
723 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 720 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
724 gfs2_dinode_out(ip, dibh->b_data); 721 gfs2_dinode_out(ip, dibh->b_data);
@@ -762,15 +759,23 @@ static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
762 * Returns: errno 759 * Returns: errno
763 */ 760 */
764 761
765static int ea_init(struct gfs2_inode *ip, struct gfs2_ea_request *er) 762static int ea_init(struct gfs2_inode *ip, int type, const char *name,
763 const void *data, size_t size)
766{ 764{
765 struct gfs2_ea_request er;
767 unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize; 766 unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize;
768 unsigned int blks = 1; 767 unsigned int blks = 1;
769 768
770 if (GFS2_EAREQ_SIZE_STUFFED(er) > jbsize) 769 er.er_type = type;
771 blks += DIV_ROUND_UP(er->er_data_len, jbsize); 770 er.er_name = name;
771 er.er_name_len = strlen(name);
772 er.er_data = (void *)data;
773 er.er_data_len = size;
774
775 if (GFS2_EAREQ_SIZE_STUFFED(&er) > jbsize)
776 blks += DIV_ROUND_UP(er.er_data_len, jbsize);
772 777
773 return ea_alloc_skeleton(ip, er, blks, ea_init_i, NULL); 778 return ea_alloc_skeleton(ip, &er, blks, ea_init_i, NULL);
774} 779}
775 780
776static struct gfs2_ea_header *ea_split_ea(struct gfs2_ea_header *ea) 781static struct gfs2_ea_header *ea_split_ea(struct gfs2_ea_header *ea)
@@ -848,12 +853,6 @@ static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh,
848 error = gfs2_meta_inode_buffer(ip, &dibh); 853 error = gfs2_meta_inode_buffer(ip, &dibh);
849 if (error) 854 if (error)
850 goto out; 855 goto out;
851
852 if (er->er_flags & GFS2_ERF_MODE) {
853 gfs2_assert_withdraw(GFS2_SB(&ip->i_inode),
854 (ip->i_inode.i_mode & S_IFMT) == (er->er_mode & S_IFMT));
855 ip->i_inode.i_mode = er->er_mode;
856 }
857 ip->i_inode.i_ctime = CURRENT_TIME; 856 ip->i_inode.i_ctime = CURRENT_TIME;
858 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 857 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
859 gfs2_dinode_out(ip, dibh->b_data); 858 gfs2_dinode_out(ip, dibh->b_data);
@@ -894,7 +893,8 @@ static int ea_set_simple(struct gfs2_inode *ip, struct buffer_head *bh,
894 int stuffed; 893 int stuffed;
895 int error; 894 int error;
896 895
897 stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er, &size); 896 stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er->er_name_len,
897 es->es_er->er_data_len, &size);
898 898
899 if (ea->ea_type == GFS2_EATYPE_UNUSED) { 899 if (ea->ea_type == GFS2_EATYPE_UNUSED) {
900 if (GFS2_EA_REC_LEN(ea) < size) 900 if (GFS2_EA_REC_LEN(ea) < size)
@@ -1005,15 +1005,22 @@ out:
1005 return error; 1005 return error;
1006} 1006}
1007 1007
1008static int ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er, 1008static int ea_set_i(struct gfs2_inode *ip, int type, const char *name,
1009 struct gfs2_ea_location *el) 1009 const void *value, size_t size, struct gfs2_ea_location *el)
1010{ 1010{
1011 struct gfs2_ea_request er;
1011 struct ea_set es; 1012 struct ea_set es;
1012 unsigned int blks = 2; 1013 unsigned int blks = 2;
1013 int error; 1014 int error;
1014 1015
1016 er.er_type = type;
1017 er.er_name = name;
1018 er.er_data = (void *)value;
1019 er.er_name_len = strlen(name);
1020 er.er_data_len = size;
1021
1015 memset(&es, 0, sizeof(struct ea_set)); 1022 memset(&es, 0, sizeof(struct ea_set));
1016 es.es_er = er; 1023 es.es_er = &er;
1017 es.es_el = el; 1024 es.es_el = el;
1018 1025
1019 error = ea_foreach(ip, ea_set_simple, &es); 1026 error = ea_foreach(ip, ea_set_simple, &es);
@@ -1024,10 +1031,10 @@ static int ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
1024 1031
1025 if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) 1032 if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))
1026 blks++; 1033 blks++;
1027 if (GFS2_EAREQ_SIZE_STUFFED(er) > GFS2_SB(&ip->i_inode)->sd_jbsize) 1034 if (GFS2_EAREQ_SIZE_STUFFED(&er) > GFS2_SB(&ip->i_inode)->sd_jbsize)
1028 blks += DIV_ROUND_UP(er->er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize); 1035 blks += DIV_ROUND_UP(er.er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);
1029 1036
1030 return ea_alloc_skeleton(ip, er, blks, ea_set_block, el); 1037 return ea_alloc_skeleton(ip, &er, blks, ea_set_block, el);
1031} 1038}
1032 1039
1033static int ea_set_remove_unstuffed(struct gfs2_inode *ip, 1040static int ea_set_remove_unstuffed(struct gfs2_inode *ip,
@@ -1039,75 +1046,7 @@ static int ea_set_remove_unstuffed(struct gfs2_inode *ip,
1039 GFS2_EA2NEXT(el->el_prev) == el->el_ea); 1046 GFS2_EA2NEXT(el->el_prev) == el->el_ea);
1040 } 1047 }
1041 1048
1042 return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev,0); 1049 return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev, 0);
1043}
1044
1045int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
1046{
1047 struct gfs2_ea_location el;
1048 int error;
1049
1050 if (!ip->i_eattr) {
1051 if (er->er_flags & XATTR_REPLACE)
1052 return -ENODATA;
1053 return ea_init(ip, er);
1054 }
1055
1056 error = gfs2_ea_find(ip, er, &el);
1057 if (error)
1058 return error;
1059
1060 if (el.el_ea) {
1061 if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
1062 brelse(el.el_bh);
1063 return -EPERM;
1064 }
1065
1066 error = -EEXIST;
1067 if (!(er->er_flags & XATTR_CREATE)) {
1068 int unstuffed = !GFS2_EA_IS_STUFFED(el.el_ea);
1069 error = ea_set_i(ip, er, &el);
1070 if (!error && unstuffed)
1071 ea_set_remove_unstuffed(ip, &el);
1072 }
1073
1074 brelse(el.el_bh);
1075 } else {
1076 error = -ENODATA;
1077 if (!(er->er_flags & XATTR_REPLACE))
1078 error = ea_set_i(ip, er, NULL);
1079 }
1080
1081 return error;
1082}
1083
1084int gfs2_ea_set(struct gfs2_inode *ip, struct gfs2_ea_request *er)
1085{
1086 struct gfs2_holder i_gh;
1087 int error;
1088
1089 if (!er->er_name_len || er->er_name_len > GFS2_EA_MAX_NAME_LEN)
1090 return -EINVAL;
1091 if (!er->er_data || !er->er_data_len) {
1092 er->er_data = NULL;
1093 er->er_data_len = 0;
1094 }
1095 error = ea_check_size(GFS2_SB(&ip->i_inode), er);
1096 if (error)
1097 return error;
1098
1099 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
1100 if (error)
1101 return error;
1102
1103 if (IS_IMMUTABLE(&ip->i_inode))
1104 error = -EPERM;
1105 else
1106 error = gfs2_ea_ops[er->er_type]->eo_set(ip, er);
1107
1108 gfs2_glock_dq_uninit(&i_gh);
1109
1110 return error;
1111} 1050}
1112 1051
1113static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el) 1052static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
@@ -1131,8 +1070,9 @@ static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
1131 1070
1132 if (GFS2_EA_IS_LAST(ea)) 1071 if (GFS2_EA_IS_LAST(ea))
1133 prev->ea_flags |= GFS2_EAFLAG_LAST; 1072 prev->ea_flags |= GFS2_EAFLAG_LAST;
1134 } else 1073 } else {
1135 ea->ea_type = GFS2_EATYPE_UNUSED; 1074 ea->ea_type = GFS2_EATYPE_UNUSED;
1075 }
1136 1076
1137 error = gfs2_meta_inode_buffer(ip, &dibh); 1077 error = gfs2_meta_inode_buffer(ip, &dibh);
1138 if (!error) { 1078 if (!error) {
@@ -1147,15 +1087,29 @@ static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
1147 return error; 1087 return error;
1148} 1088}
1149 1089
1150int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er) 1090/**
1091 * gfs2_xattr_remove - Remove a GFS2 extended attribute
1092 * @inode: The inode
1093 * @type: The type of the extended attribute
1094 * @name: The name of the extended attribute
1095 *
1096 * This is not called directly by the VFS since we use the (common)
1097 * scheme of making a "set with NULL data" mean a remove request. Note
1098 * that this is different from a set with zero length data.
1099 *
1100 * Returns: 0, or errno on failure
1101 */
1102
1103static int gfs2_xattr_remove(struct inode *inode, int type, const char *name)
1151{ 1104{
1105 struct gfs2_inode *ip = GFS2_I(inode);
1152 struct gfs2_ea_location el; 1106 struct gfs2_ea_location el;
1153 int error; 1107 int error;
1154 1108
1155 if (!ip->i_eattr) 1109 if (!ip->i_eattr)
1156 return -ENODATA; 1110 return -ENODATA;
1157 1111
1158 error = gfs2_ea_find(ip, er, &el); 1112 error = gfs2_ea_find(ip, type, name, &el);
1159 if (error) 1113 if (error)
1160 return error; 1114 return error;
1161 if (!el.el_ea) 1115 if (!el.el_ea)
@@ -1164,8 +1118,7 @@ int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
1164 if (GFS2_EA_IS_STUFFED(el.el_ea)) 1118 if (GFS2_EA_IS_STUFFED(el.el_ea))
1165 error = ea_remove_stuffed(ip, &el); 1119 error = ea_remove_stuffed(ip, &el);
1166 else 1120 else
1167 error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 1121 error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 0);
1168 0);
1169 1122
1170 brelse(el.el_bh); 1123 brelse(el.el_bh);
1171 1124
@@ -1173,31 +1126,70 @@ int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
1173} 1126}
1174 1127
1175/** 1128/**
1176 * gfs2_ea_remove - sets (or creates or replaces) an extended attribute 1129 * gfs2_xattr_set - Set (or remove) a GFS2 extended attribute
1177 * @ip: pointer to the inode of the target file 1130 * @inode: The inode
1178 * @er: request information 1131 * @type: The type of the extended attribute
1132 * @name: The name of the extended attribute
1133 * @value: The value of the extended attribute (NULL for remove)
1134 * @size: The size of the @value argument
1135 * @flags: Create or Replace
1179 * 1136 *
1180 * Returns: errno 1137 * See gfs2_xattr_remove() for details of the removal of xattrs.
1138 *
1139 * Returns: 0 or errno on failure
1181 */ 1140 */
1182 1141
1183int gfs2_ea_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er) 1142int gfs2_xattr_set(struct inode *inode, int type, const char *name,
1143 const void *value, size_t size, int flags)
1184{ 1144{
1185 struct gfs2_holder i_gh; 1145 struct gfs2_sbd *sdp = GFS2_SB(inode);
1146 struct gfs2_inode *ip = GFS2_I(inode);
1147 struct gfs2_ea_location el;
1148 unsigned int namel = strlen(name);
1186 int error; 1149 int error;
1187 1150
1188 if (!er->er_name_len || er->er_name_len > GFS2_EA_MAX_NAME_LEN) 1151 if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
1189 return -EINVAL; 1152 return -EPERM;
1153 if (namel > GFS2_EA_MAX_NAME_LEN)
1154 return -ERANGE;
1190 1155
1191 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh); 1156 if (value == NULL)
1157 return gfs2_xattr_remove(inode, type, name);
1158
1159 if (ea_check_size(sdp, namel, size))
1160 return -ERANGE;
1161
1162 if (!ip->i_eattr) {
1163 if (flags & XATTR_REPLACE)
1164 return -ENODATA;
1165 return ea_init(ip, type, name, value, size);
1166 }
1167
1168 error = gfs2_ea_find(ip, type, name, &el);
1192 if (error) 1169 if (error)
1193 return error; 1170 return error;
1194 1171
1195 if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode)) 1172 if (el.el_ea) {
1196 error = -EPERM; 1173 if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
1197 else 1174 brelse(el.el_bh);
1198 error = gfs2_ea_ops[er->er_type]->eo_remove(ip, er); 1175 return -EPERM;
1176 }
1199 1177
1200 gfs2_glock_dq_uninit(&i_gh); 1178 error = -EEXIST;
1179 if (!(flags & XATTR_CREATE)) {
1180 int unstuffed = !GFS2_EA_IS_STUFFED(el.el_ea);
1181 error = ea_set_i(ip, type, name, value, size, &el);
1182 if (!error && unstuffed)
1183 ea_set_remove_unstuffed(ip, &el);
1184 }
1185
1186 brelse(el.el_bh);
1187 return error;
1188 }
1189
1190 error = -ENODATA;
1191 if (!(flags & XATTR_REPLACE))
1192 error = ea_set_i(ip, type, name, value, size, NULL);
1201 1193
1202 return error; 1194 return error;
1203} 1195}
@@ -1503,3 +1495,64 @@ out_alloc:
1503 return error; 1495 return error;
1504} 1496}
1505 1497
1498static int gfs2_xattr_user_get(struct inode *inode, const char *name,
1499 void *buffer, size_t size)
1500{
1501 return gfs2_xattr_get(inode, GFS2_EATYPE_USR, name, buffer, size);
1502}
1503
1504static int gfs2_xattr_user_set(struct inode *inode, const char *name,
1505 const void *value, size_t size, int flags)
1506{
1507 return gfs2_xattr_set(inode, GFS2_EATYPE_USR, name, value, size, flags);
1508}
1509
1510static int gfs2_xattr_system_get(struct inode *inode, const char *name,
1511 void *buffer, size_t size)
1512{
1513 return gfs2_xattr_get(inode, GFS2_EATYPE_SYS, name, buffer, size);
1514}
1515
1516static int gfs2_xattr_system_set(struct inode *inode, const char *name,
1517 const void *value, size_t size, int flags)
1518{
1519 return gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, flags);
1520}
1521
1522static int gfs2_xattr_security_get(struct inode *inode, const char *name,
1523 void *buffer, size_t size)
1524{
1525 return gfs2_xattr_get(inode, GFS2_EATYPE_SECURITY, name, buffer, size);
1526}
1527
1528static int gfs2_xattr_security_set(struct inode *inode, const char *name,
1529 const void *value, size_t size, int flags)
1530{
1531 return gfs2_xattr_set(inode, GFS2_EATYPE_SECURITY, name, value, size, flags);
1532}
1533
1534static struct xattr_handler gfs2_xattr_user_handler = {
1535 .prefix = XATTR_USER_PREFIX,
1536 .get = gfs2_xattr_user_get,
1537 .set = gfs2_xattr_user_set,
1538};
1539
1540static struct xattr_handler gfs2_xattr_security_handler = {
1541 .prefix = XATTR_SECURITY_PREFIX,
1542 .get = gfs2_xattr_security_get,
1543 .set = gfs2_xattr_security_set,
1544};
1545
1546static struct xattr_handler gfs2_xattr_system_handler = {
1547 .prefix = XATTR_SYSTEM_PREFIX,
1548 .get = gfs2_xattr_system_get,
1549 .set = gfs2_xattr_system_set,
1550};
1551
1552struct xattr_handler *gfs2_xattr_handlers[] = {
1553 &gfs2_xattr_user_handler,
1554 &gfs2_xattr_security_handler,
1555 &gfs2_xattr_system_handler,
1556 NULL,
1557};
1558
diff --git a/fs/gfs2/eattr.h b/fs/gfs2/xattr.h
index c82dbe01d713..cbdfd7743733 100644
--- a/fs/gfs2/eattr.h
+++ b/fs/gfs2/xattr.h
@@ -19,7 +19,7 @@ struct iattr;
19#define GFS2_EA_SIZE(ea) \ 19#define GFS2_EA_SIZE(ea) \
20ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \ 20ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
21 ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \ 21 ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
22 (sizeof(__be64) * (ea)->ea_num_ptrs)), 8) 22 (sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
23 23
24#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs) 24#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
25#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST) 25#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
@@ -27,10 +27,6 @@ ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
27#define GFS2_EAREQ_SIZE_STUFFED(er) \ 27#define GFS2_EAREQ_SIZE_STUFFED(er) \
28ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8) 28ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
29 29
30#define GFS2_EAREQ_SIZE_UNSTUFFED(sdp, er) \
31ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + \
32 sizeof(__be64) * DIV_ROUND_UP((er)->er_data_len, (sdp)->sd_jbsize), 8)
33
34#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1)) 30#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
35#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len) 31#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
36 32
@@ -43,16 +39,12 @@ ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + \
43#define GFS2_EA_BH2FIRST(bh) \ 39#define GFS2_EA_BH2FIRST(bh) \
44((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header))) 40((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
45 41
46#define GFS2_ERF_MODE 0x80000000
47
48struct gfs2_ea_request { 42struct gfs2_ea_request {
49 const char *er_name; 43 const char *er_name;
50 char *er_data; 44 char *er_data;
51 unsigned int er_name_len; 45 unsigned int er_name_len;
52 unsigned int er_data_len; 46 unsigned int er_data_len;
53 unsigned int er_type; /* GFS2_EATYPE_... */ 47 unsigned int er_type; /* GFS2_EATYPE_... */
54 int er_flags;
55 mode_t er_mode;
56}; 48};
57 49
58struct gfs2_ea_location { 50struct gfs2_ea_location {
@@ -61,40 +53,20 @@ struct gfs2_ea_location {
61 struct gfs2_ea_header *el_prev; 53 struct gfs2_ea_header *el_prev;
62}; 54};
63 55
64int gfs2_ea_get_i(struct gfs2_inode *ip, struct gfs2_ea_request *er); 56extern int gfs2_xattr_get(struct inode *inode, int type, const char *name,
65int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er); 57 void *buffer, size_t size);
66int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er); 58extern int gfs2_xattr_set(struct inode *inode, int type, const char *name,
67 59 const void *value, size_t size, int flags);
68int gfs2_ea_list(struct gfs2_inode *ip, struct gfs2_ea_request *er); 60extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
69int gfs2_ea_get(struct gfs2_inode *ip, struct gfs2_ea_request *er); 61extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
70int gfs2_ea_set(struct gfs2_inode *ip, struct gfs2_ea_request *er);
71int gfs2_ea_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er);
72
73int gfs2_ea_dealloc(struct gfs2_inode *ip);
74 62
75/* Exported to acl.c */ 63/* Exported to acl.c */
76 64
77int gfs2_ea_find(struct gfs2_inode *ip, 65extern int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
78 struct gfs2_ea_request *er, 66 struct gfs2_ea_location *el);
79 struct gfs2_ea_location *el); 67extern int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
80int gfs2_ea_get_copy(struct gfs2_inode *ip, 68 char *data, size_t size);
81 struct gfs2_ea_location *el, 69extern int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
82 char *data); 70 struct iattr *attr, char *data);
83int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
84 struct iattr *attr, char *data);
85
86static inline unsigned int gfs2_ea_strlen(struct gfs2_ea_header *ea)
87{
88 switch (ea->ea_type) {
89 case GFS2_EATYPE_USR:
90 return 5 + ea->ea_name_len + 1;
91 case GFS2_EATYPE_SYS:
92 return 7 + ea->ea_name_len + 1;
93 case GFS2_EATYPE_SECURITY:
94 return 9 + ea->ea_name_len + 1;
95 default:
96 return 0;
97 }
98}
99 71
100#endif /* __EATTR_DOT_H__ */ 72#endif /* __EATTR_DOT_H__ */
diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h
index c56b4bce56d0..b80c88dedbbb 100644
--- a/include/linux/gfs2_ondisk.h
+++ b/include/linux/gfs2_ondisk.h
@@ -333,6 +333,28 @@ struct gfs2_leaf {
333 333
334/* 334/*
335 * Extended attribute header format 335 * Extended attribute header format
336 *
337 * This works in a similar way to dirents. There is a fixed size header
338 * followed by a variable length section made up of the name and the
339 * associated data. In the case of a "stuffed" entry, the value is
340 * inline directly after the name, the ea_num_ptrs entry will be
341 * zero in that case. For non-"stuffed" entries, there will be
342 * a set of pointers (aligned to 8 byte boundary) to the block(s)
343 * containing the value.
344 *
345 * The blocks containing the values and the blocks containing the
346 * extended attribute headers themselves all start with the common
347 * metadata header. Each inode, if it has extended attributes, will
348 * have either a single block containing the extended attribute headers
349 * or a single indirect block pointing to blocks containing the
350 * extended attribure headers.
351 *
352 * The maximim size of the data part of an extended attribute is 64k
353 * so the number of blocks required depends upon block size. Since the
354 * block size also determines the number of pointers in an indirect
355 * block, its a fairly complicated calculation to work out the maximum
356 * number of blocks that an inode may have relating to extended attributes.
357 *
336 */ 358 */
337 359
338#define GFS2_EA_MAX_NAME_LEN 255 360#define GFS2_EA_MAX_NAME_LEN 255
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 00:55:15 -0500