xfs: undo block reservation correctly in xfs_trans_reserve()

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"blocks" should be added back to fdblocks at undo time, not taken
away, i.e. the minus sign should not be used.

This is a regression introduced by commit 0d485ada40 ("xfs: use
generic percpu counters for free block counter"). And it's found by
code inspection, I didn't it in real world, so there's no
reproducer.

Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Eryu Guan 2016-09-14 07:39:07 +10:00 • committed by Dave Chinner

parent ea78d80866

commit a27f6ef4e6

1 changed files with 1 additions and 1 deletions

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fs/xfs/xfs_trans.c

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