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Btrfs: make sure the delalloc workers actually flush compressed writes

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When using delalloc workers in a non-waiting way (like for enospc handling) we
can end up not actually waiting for the dirty pages to be started if we have
compression.  We need to add an extra filemap flush to make sure any async
extents that have started are actually moved along before returning.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Josef Bacik 2013-10-28 15:03:41 -04:00 committed by Chris Mason
parent 9385876917
commit 9f23e289ed
1 changed files with 12 additions and 6 deletions
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18
fs/btrfs/inode.c
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@ -8163,18 +8163,24 @@ out_notrans:
static void btrfs_run_delalloc_work(struct btrfs_work *work)
{
struct btrfs_delalloc_work *delalloc_work;
struct inode *inode;
delalloc_work = container_of(work, struct btrfs_delalloc_work,
work);
if (delalloc_work->wait)
btrfs_wait_ordered_range(delalloc_work->inode, 0, (u64)-1);
else
filemap_flush(delalloc_work->inode->i_mapping);
inode = delalloc_work->inode;
if (delalloc_work->wait) {
btrfs_wait_ordered_range(inode, 0, (u64)-1);
} else {
filemap_flush(inode->i_mapping);
if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
&BTRFS_I(inode)->runtime_flags))
filemap_flush(inode->i_mapping);
}
if (delalloc_work->delay_iput)
btrfs_add_delayed_iput(delalloc_work->inode);
btrfs_add_delayed_iput(inode);
else
iput(delalloc_work->inode);
iput(inode);
complete(&delalloc_work->completion);
}