Btrfs: change the ordered tree to use a spinlock instead of a mutex

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The ordered tree used to need a mutex, but currently all we use it for is to
protect the rb_tree, and a spin_lock is just fine for that.  Using a spin_lock
instead makes dbench run a little faster, 58 mb/s instead of 51 mb/s, and have
less latency, 3445.138 ms instead of 3820.633 ms.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

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Josef Bacik 2010-02-02 21:48:28 +00:00 • committed by Chris Mason

parent 4125bf761c

commit 49958fd7db

2 changed files with 19 additions and 19 deletions

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34

fs/btrfs/ordered-data.c

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4

fs/btrfs/ordered-data.h

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