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| author | Theodore Ts'o <tytso@mit.edu> | 2009-02-24 08:21:14 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-02-24 08:21:14 -0500 |
| commit | 7d8f9f7d150dded7b68e61ca6403a1f166fb4edf (patch) | |
| tree | 79572041ae1b5737bc8d75037ff86903469430eb /fs/ext4/file.c | |
| parent | ccd2506bd43113659aa904d5bea5d1300605e2a6 (diff) | |
| download | linux-7d8f9f7d150dded7b68e61ca6403a1f166fb4edf.tar.gz | |
ext4: Automatically allocate delay allocated blocks on close
When closing a file that had been previously truncated, force any delay allocated blocks that to be allocated so that if the filesystem is mounted with data=ordered, the data blocks will be pushed out to disk along with the journal commit. Many application programs expect this, so we do this to avoid zero length files if the system crashes unexpectedly. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/file.c')
| -rw-r--r-- | fs/ext4/file.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index f731cb545a03..06df8272c639 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -33,6 +33,10 @@ */ static int ext4_release_file(struct inode *inode, struct file *filp) { + if (EXT4_I(inode)->i_state & EXT4_STATE_DA_ALLOC_CLOSE) { + ext4_alloc_da_blocks(inode); + EXT4_I(inode)->i_state &= ~EXT4_STATE_DA_ALLOC_CLOSE; + } /* if we are the last writer on the inode, drop the block reservation */ if ((filp->f_mode & FMODE_WRITE) && (atomic_read(&inode->i_writecount) == 1)) |