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(parent: 4125bf7) | patch
Btrfs: change the ordered tree to use a spinlock instead of a mutex
authorJosef Bacik <josef@redhat.com>
Tue, 2 Feb 2010 21:48:28 +0000 (21:48 +0000)
committerChris Mason <chris.mason@oracle.com>
Mon, 15 Mar 2010 15:00:12 +0000 (11:00 -0400)
commit49958fd7dbb83cd4d65179d025940e01fe1fbacd
tree4a29e47c0935375968971450a2f2949bbd3cdd43tree | snapshot
parent4125bf761cd0786e1163e024c7c809ce2cc625bccommit | diff
Btrfs: change the ordered tree to use a spinlock instead of a mutex

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>
fs/btrfs/ordered-data.c diff | blob | history
fs/btrfs/ordered-data.h diff | blob | history
Domain: System / Kernel;