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Btrfs: correctly flush data on defrag when compression is enabled

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When the defrag flag BTRFS_DEFRAG_RANGE_START_IO is set and compression
enabled, we weren't flushing completely, as writing compressed extents
is a 2 steps process, one to compress the data and another one to write
the compressed data to disk.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
This commit is contained in:
Filipe Manana 2014-03-01 10:55:54 +00:00 committed by Josef Bacik
parent d458b0540e
commit dec8ef9055
1 changed files with 5 additions and 1 deletions
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6
fs/btrfs/ioctl.c
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@ -1382,8 +1382,12 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
}
}
if ((range->flags & BTRFS_DEFRAG_RANGE_START_IO))
if ((range->flags & BTRFS_DEFRAG_RANGE_START_IO)) {
filemap_flush(inode->i_mapping);
if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
&BTRFS_I(inode)->runtime_flags))
filemap_flush(inode->i_mapping);
}
if ((range->flags & BTRFS_DEFRAG_RANGE_COMPRESS)) {
/* the filemap_flush will queue IO into the worker threads, but