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Btrfs: return -ENOMEM in clear_extent_bit

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The btrfs releasepage function depends on ENOMEM coming
back when it is called atomic.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2011-05-26 17:43:59 -04:00
parent 4cb5300bc8
commit c309df0786
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/extent_io.c
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@ -485,7 +485,8 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
again:
if (!prealloc && (mask & __GFP_WAIT)) {
prealloc = alloc_extent_state(mask);
BUG_ON(!prealloc);
if (!prealloc)
return -ENOMEM;
}
spin_lock(&tree->lock);