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| author | Theodore Ts'o <tytso@mit.edu> | 2009-06-09 13:54:40 (GMT) |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-06-09 13:54:40 (GMT) |
| commit | 0eab928221bac8895a0b494a16a8810002bd8645 (patch) | |
| tree | 733ca0ee831fffb3fd2c96b6715250e79e7a24fa /fs/ext4 | |
| parent | 9aee2286071c23c535fe9928eec1a26e0bcf256d (diff) | |
| download | linux-0eab928221bac8895a0b494a16a8810002bd8645.tar.xz | |
ext4: Don't treat a truncation of a zero-length file as replace-via-truncate
If a non-existent file is opened via O_WRONLY|O_CREAT|O_TRUNC, there's
no need to treat this as a true file truncation, so we shouldn't
activate the replace-via-truncate hueristic.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 2c10d34..875db94 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4127,7 +4127,8 @@ void ext4_truncate(struct inode *inode) if (!ext4_can_truncate(inode)) return; - if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC)) + if (ei->i_disksize && inode->i_size == 0 && + !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC)) ei->i_state |= EXT4_STATE_DA_ALLOC_CLOSE; if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) { |