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| author | Jan Kara <jack@suse.cz> | 2009-12-08 23:51:10 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-12-08 23:51:10 -0500 |
| commit | b436b9bef84de6893e86346d8fbf7104bc520645 (patch) | |
| tree | 50fb9ae167bcd622e9adf47646bcf3b4c7dd111d /fs/ext4/ext4.h | |
| parent | 194074acacebc169ded90a4657193f5180015051 (diff) | |
| download | kernel_samsung_smdk4412-b436b9bef84de6893e86346d8fbf7104bc520645.zip kernel_samsung_smdk4412-b436b9bef84de6893e86346d8fbf7104bc520645.tar.gz kernel_samsung_smdk4412-b436b9bef84de6893e86346d8fbf7104bc520645.tar.bz2 | |
ext4: Wait for proper transaction commit on fsync
We cannot rely on buffer dirty bits during fsync because pdflush can come
before fsync is called and clear dirty bits without forcing a transaction
commit. What we do is that we track which transaction has last changed
the inode and which transaction last changed allocation and force it to
disk on fsync.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 4cfc2f0..ab31e65 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -709,6 +709,13 @@ struct ext4_inode_info { struct list_head i_aio_dio_complete_list; /* current io_end structure for async DIO write*/ ext4_io_end_t *cur_aio_dio; + + /* + * Transactions that contain inode's metadata needed to complete + * fsync and fdatasync, respectively. + */ + tid_t i_sync_tid; + tid_t i_datasync_tid; }; /* |