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Btrfs end_bio_extent_readpage should look for locked bits 

A recent commit caches the extent state in end_bio_extent_readpage,
but the search it does should look for locked extents.  This
fixes things to make it more effective.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2011-04-16 06:55:39 -04:00
parent 0e4f8f8888
commit 0d399205ed
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/extent_io.c
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@ -1761,7 +1761,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
prefetchw(&bvec->bv_page->flags);
spin_lock(&tree->lock);
state = find_first_extent_bit_state(tree, start, 0);
state = find_first_extent_bit_state(tree, start, EXTENT_LOCKED);
if (state && state->start == start) {
/*
* take a reference on the state, unlock will drop