btrfs: extent-tree: Fix a bug that btrfs is unable to add pinned bytes

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Commit ddf30cf03f ("btrfs: extent-tree: Use btrfs_ref to refactor
add_pinned_bytes()") refactored add_pinned_bytes(), but during that
refactor, there are two callers which add the pinned bytes instead
of subtracting.

That refactor misses those two caller, causing incorrect pinned bytes
calculation and resulting unexpected ENOSPC error.

Fix it by adding a new parameter @sign to restore the original behavior.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: ddf30cf03f ("btrfs: extent-tree: Use btrfs_ref to refactor add_pinned_bytes()")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Qu Wenruo 2019-05-10 12:45:05 +08:00 • committed by David Sterba

parent e32773357d

commit 14ae4ec1ee

1 changed files with 7 additions and 5 deletions

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fs/btrfs/extent-tree.c

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