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| author | Mingming <cmm@us.ibm.com> | 2009-11-10 10:48:04 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-11-10 10:48:04 -0500 |
| commit | 5f5249507e4b5c4fc0f9c93f33d133d8c95f47e1 (patch) | |
| tree | 0b0a790f568c07298c3a4122572e84392c787648 /fs/ext4/ext4.h | |
| parent | 109f55651954def97fa41ee71c464d268c512ab0 (diff) | |
| download | linux-5f5249507e4b5c4fc0f9c93f33d133d8c95f47e1.tar.bz2 | |
ext4: skip conversion of uninit extents after direct IO if there isn't any
At the end of direct I/O operation, ext4_ext_direct_IO() always called
ext4_convert_unwritten_extents(), regardless of whether there were any
unwritten extents involved in the I/O or not.
This commit adds a state flag so that ext4_ext_direct_IO() only calls
ext4_convert_unwritten_extents() when necessary.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 00d153f2f261..8825515eeddd 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -322,6 +322,7 @@ static inline __u32 ext4_mask_flags(umode_t mode, __u32 flags) #define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */ #define EXT4_STATE_DA_ALLOC_CLOSE 0x00000010 /* Alloc DA blks on close */ #define EXT4_STATE_EXT_MIGRATE 0x00000020 /* Inode is migrating */ +#define EXT4_STATE_DIO_UNWRITTEN 0x00000040 /* need convert on dio done*/ /* Used to pass group descriptor data when online resize is done */ struct ext4_new_group_input { |