diff options
| author | David S. Miller <davem@davemloft.net> | 2011-10-24 18:18:09 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-24 18:18:09 -0400 |
| commit | 1805b2f04855f07afe3a71d620a68f483b0ed74f (patch) | |
| tree | b823b90f37f5404fcaef70f785c70112ca74a329 /fs/btrfs | |
| parent | 78d81d15b74246c7cedf84894434890b33da3907 (diff) | |
| parent | f42af6c486aa5ca6ee62800cb45c5b252020509d (diff) | |
| download | lwn-1805b2f04855f07afe3a71d620a68f483b0ed74f.tar.gz lwn-1805b2f04855f07afe3a71d620a68f483b0ed74f.zip | |
Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ioctl.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 538f65a79ec5..dae5dfe41ba5 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1047,7 +1047,16 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, if (!max_to_defrag) max_to_defrag = last_index - 1; - while (i <= last_index && defrag_count < max_to_defrag) { + /* + * make writeback starts from i, so the defrag range can be + * written sequentially. + */ + if (i < inode->i_mapping->writeback_index) + inode->i_mapping->writeback_index = i; + + while (i <= last_index && defrag_count < max_to_defrag && + (i < (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> + PAGE_CACHE_SHIFT)) { /* * make sure we stop running if someone unmounts * the FS |