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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 14:26:52 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 14:26:52 -0400
commit5f248c9c251c60af3403902b26e08de43964ea0b (patch)
tree6d3328e72a7e4015a64017eb30be18095c6a3c64 /fs/reiserfs/inode.c
parentf6cec0ae58c17522a7bc4e2f39dae19f199ab534 (diff)
parentdca332528bc69e05f67161e1ed59929633d5e63d (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits) no need for list_for_each_entry_safe()/resetting with superblock list Fix sget() race with failing mount vfs: don't hold s_umount over close_bdev_exclusive() call sysv: do not mark superblock dirty on remount sysv: do not mark superblock dirty on mount btrfs: remove junk sb_dirt change BFS: clean up the superblock usage AFFS: wait for sb synchronization when needed AFFS: clean up dirty flag usage cifs: truncate fallout mbcache: fix shrinker function return value mbcache: Remove unused features add f_flags to struct statfs(64) pass a struct path to vfs_statfs update VFS documentation for method changes. All filesystems that need invalidate_inode_buffers() are doing that explicitly convert remaining ->clear_inode() to ->evict_inode() Make ->drop_inode() just return whether inode needs to be dropped fs/inode.c:clear_inode() is gone fs/inode.c:evict() doesn't care about delete vs. non-delete paths now ... Fix up trivial conflicts in fs/nilfs2/super.c
Diffstat (limited to 'fs/reiserfs/inode.c')
-rw-r--r--fs/reiserfs/inode.c134
1 files changed, 80 insertions, 54 deletions
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 29db72203bd..ae35413dcbe 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -25,7 +25,7 @@ int reiserfs_commit_write(struct file *f, struct page *page,
25int reiserfs_prepare_write(struct file *f, struct page *page, 25int reiserfs_prepare_write(struct file *f, struct page *page,
26 unsigned from, unsigned to); 26 unsigned from, unsigned to);
27 27
28void reiserfs_delete_inode(struct inode *inode) 28void reiserfs_evict_inode(struct inode *inode)
29{ 29{
30 /* We need blocks for transaction + (user+group) quota update (possibly delete) */ 30 /* We need blocks for transaction + (user+group) quota update (possibly delete) */
31 int jbegin_count = 31 int jbegin_count =
@@ -35,10 +35,12 @@ void reiserfs_delete_inode(struct inode *inode)
35 int depth; 35 int depth;
36 int err; 36 int err;
37 37
38 if (!is_bad_inode(inode)) 38 if (!inode->i_nlink && !is_bad_inode(inode))
39 dquot_initialize(inode); 39 dquot_initialize(inode);
40 40
41 truncate_inode_pages(&inode->i_data, 0); 41 truncate_inode_pages(&inode->i_data, 0);
42 if (inode->i_nlink)
43 goto no_delete;
42 44
43 depth = reiserfs_write_lock_once(inode->i_sb); 45 depth = reiserfs_write_lock_once(inode->i_sb);
44 46
@@ -77,9 +79,14 @@ void reiserfs_delete_inode(struct inode *inode)
77 ; 79 ;
78 } 80 }
79 out: 81 out:
80 clear_inode(inode); /* note this must go after the journal_end to prevent deadlock */ 82 end_writeback(inode); /* note this must go after the journal_end to prevent deadlock */
83 dquot_drop(inode);
81 inode->i_blocks = 0; 84 inode->i_blocks = 0;
82 reiserfs_write_unlock_once(inode->i_sb, depth); 85 reiserfs_write_unlock_once(inode->i_sb, depth);
86
87no_delete:
88 end_writeback(inode);
89 dquot_drop(inode);
83} 90}
84 91
85static void _make_cpu_key(struct cpu_key *key, int version, __u32 dirid, 92static void _make_cpu_key(struct cpu_key *key, int version, __u32 dirid,
@@ -1138,7 +1145,6 @@ static void init_inode(struct inode *inode, struct treepath *path)
1138 REISERFS_I(inode)->i_prealloc_count = 0; 1145 REISERFS_I(inode)->i_prealloc_count = 0;
1139 REISERFS_I(inode)->i_trans_id = 0; 1146 REISERFS_I(inode)->i_trans_id = 0;
1140 REISERFS_I(inode)->i_jl = NULL; 1147 REISERFS_I(inode)->i_jl = NULL;
1141 mutex_init(&(REISERFS_I(inode)->i_mmap));
1142 reiserfs_init_xattr_rwsem(inode); 1148 reiserfs_init_xattr_rwsem(inode);
1143 1149
1144 if (stat_data_v1(ih)) { 1150 if (stat_data_v1(ih)) {
@@ -1841,7 +1847,6 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
1841 REISERFS_I(inode)->i_attrs = 1847 REISERFS_I(inode)->i_attrs =
1842 REISERFS_I(dir)->i_attrs & REISERFS_INHERIT_MASK; 1848 REISERFS_I(dir)->i_attrs & REISERFS_INHERIT_MASK;
1843 sd_attrs_to_i_attrs(REISERFS_I(inode)->i_attrs, inode); 1849 sd_attrs_to_i_attrs(REISERFS_I(inode)->i_attrs, inode);
1844 mutex_init(&(REISERFS_I(inode)->i_mmap));
1845 reiserfs_init_xattr_rwsem(inode); 1850 reiserfs_init_xattr_rwsem(inode);
1846 1851
1847 /* key to search for correct place for new stat data */ 1852 /* key to search for correct place for new stat data */
@@ -2587,8 +2592,7 @@ static int reiserfs_write_begin(struct file *file,
2587 old_ref = th->t_refcount; 2592 old_ref = th->t_refcount;
2588 th->t_refcount++; 2593 th->t_refcount++;
2589 } 2594 }
2590 ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, 2595 ret = __block_write_begin(page, pos, len, reiserfs_get_block);
2591 reiserfs_get_block);
2592 if (ret && reiserfs_transaction_running(inode->i_sb)) { 2596 if (ret && reiserfs_transaction_running(inode->i_sb)) {
2593 struct reiserfs_transaction_handle *th = current->journal_info; 2597 struct reiserfs_transaction_handle *th = current->journal_info;
2594 /* this gets a little ugly. If reiserfs_get_block returned an 2598 /* this gets a little ugly. If reiserfs_get_block returned an
@@ -3059,10 +3063,25 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb,
3059{ 3063{
3060 struct file *file = iocb->ki_filp; 3064 struct file *file = iocb->ki_filp;
3061 struct inode *inode = file->f_mapping->host; 3065 struct inode *inode = file->f_mapping->host;
3066 ssize_t ret;
3062 3067
3063 return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, 3068 ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
3064 offset, nr_segs, 3069 offset, nr_segs,
3065 reiserfs_get_blocks_direct_io, NULL); 3070 reiserfs_get_blocks_direct_io, NULL);
3071
3072 /*
3073 * In case of error extending write may have instantiated a few
3074 * blocks outside i_size. Trim these off again.
3075 */
3076 if (unlikely((rw & WRITE) && ret < 0)) {
3077 loff_t isize = i_size_read(inode);
3078 loff_t end = offset + iov_length(iov, nr_segs);
3079
3080 if (end > isize)
3081 vmtruncate(inode, isize);
3082 }
3083
3084 return ret;
3066} 3085}
3067 3086
3068int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) 3087int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
@@ -3072,6 +3091,10 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
3072 int depth; 3091 int depth;
3073 int error; 3092 int error;
3074 3093
3094 error = inode_change_ok(inode, attr);
3095 if (error)
3096 return error;
3097
3075 /* must be turned off for recursive notify_change calls */ 3098 /* must be turned off for recursive notify_change calls */
3076 ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID); 3099 ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID);
3077 3100
@@ -3121,55 +3144,58 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
3121 goto out; 3144 goto out;
3122 } 3145 }
3123 3146
3124 error = inode_change_ok(inode, attr); 3147 if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
3125 if (!error) { 3148 (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
3126 if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || 3149 struct reiserfs_transaction_handle th;
3127 (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { 3150 int jbegin_count =
3128 error = reiserfs_chown_xattrs(inode, attr); 3151 2 *
3152 (REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb) +
3153 REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb)) +
3154 2;
3129 3155
3130 if (!error) { 3156 error = reiserfs_chown_xattrs(inode, attr);
3131 struct reiserfs_transaction_handle th; 3157
3132 int jbegin_count = 3158 if (error)
3133 2 * 3159 return error;
3134 (REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb) + 3160
3135 REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb)) + 3161 /* (user+group)*(old+new) structure - we count quota info and , inode write (sb, inode) */
3136 2; 3162 error = journal_begin(&th, inode->i_sb, jbegin_count);
3137 3163 if (error)
3138 /* (user+group)*(old+new) structure - we count quota info and , inode write (sb, inode) */ 3164 goto out;
3139 error = 3165 error = dquot_transfer(inode, attr);
3140 journal_begin(&th, inode->i_sb, 3166 if (error) {
3141 jbegin_count); 3167 journal_end(&th, inode->i_sb, jbegin_count);
3142 if (error) 3168 goto out;
3143 goto out;
3144 error = dquot_transfer(inode, attr);
3145 if (error) {
3146 journal_end(&th, inode->i_sb,
3147 jbegin_count);
3148 goto out;
3149 }
3150 /* Update corresponding info in inode so that everything is in
3151 * one transaction */
3152 if (attr->ia_valid & ATTR_UID)
3153 inode->i_uid = attr->ia_uid;
3154 if (attr->ia_valid & ATTR_GID)
3155 inode->i_gid = attr->ia_gid;
3156 mark_inode_dirty(inode);
3157 error =
3158 journal_end(&th, inode->i_sb, jbegin_count);
3159 }
3160 }
3161 if (!error) {
3162 /*
3163 * Relax the lock here, as it might truncate the
3164 * inode pages and wait for inode pages locks.
3165 * To release such page lock, the owner needs the
3166 * reiserfs lock
3167 */
3168 reiserfs_write_unlock_once(inode->i_sb, depth);
3169 error = inode_setattr(inode, attr);
3170 depth = reiserfs_write_lock_once(inode->i_sb);
3171 } 3169 }
3170
3171 /* Update corresponding info in inode so that everything is in
3172 * one transaction */
3173 if (attr->ia_valid & ATTR_UID)
3174 inode->i_uid = attr->ia_uid;
3175 if (attr->ia_valid & ATTR_GID)
3176 inode->i_gid = attr->ia_gid;
3177 mark_inode_dirty(inode);
3178 error = journal_end(&th, inode->i_sb, jbegin_count);
3179 if (error)
3180 goto out;
3181 }
3182
3183 /*
3184 * Relax the lock here, as it might truncate the
3185 * inode pages and wait for inode pages locks.
3186 * To release such page lock, the owner needs the
3187 * reiserfs lock
3188 */
3189 reiserfs_write_unlock_once(inode->i_sb, depth);
3190 if ((attr->ia_valid & ATTR_SIZE) &&
3191 attr->ia_size != i_size_read(inode))
3192 error = vmtruncate(inode, attr->ia_size);
3193
3194 if (!error) {
3195 setattr_copy(inode, attr);
3196 mark_inode_dirty(inode);
3172 } 3197 }
3198 depth = reiserfs_write_lock_once(inode->i_sb);
3173 3199
3174 if (!error && reiserfs_posixacl(inode->i_sb)) { 3200 if (!error && reiserfs_posixacl(inode->i_sb)) {
3175 if (attr->ia_valid & ATTR_MODE) 3201 if (attr->ia_valid & ATTR_MODE)