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| author |   Theodore Ts'o <tytso@mit.edu> | 2014-04-21 14:37:55 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-04-21 14:37:55 -0400 |
| commit | 202ee5df38b33f7ea28286807a0b548b49613194 (patch) | |
| tree | 5737ca8bd3f24d2af02c269e0be06ee255157fc0 /fs/ext4/super.c | |
| parent | ext4: fix locking for O_APPEND writes (diff) | |
| download | linux-dev-202ee5df38b33f7ea28286807a0b548b49613194.tar.xz linux-dev-202ee5df38b33f7ea28286807a0b548b49613194.zip | |
ext4: add a new spinlock i_raw_lock to protect the ext4's raw inode
To avoid potential data races, use a spinlock which protects the raw
(on-disk) inode.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c4895c195e00..1f8cb1812723 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -879,6 +879,7 @@ static struct inode *ext4_alloc_inode(struct super_block *sb) return NULL; ei->vfs_inode.i_version = 1; + spin_lock_init(&ei->i_raw_lock); INIT_LIST_HEAD(&ei->i_prealloc_list); spin_lock_init(&ei->i_prealloc_lock); ext4_es_init_tree(&ei->i_es_tree); |