path: root/fs/btrfs/relocation.c
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authorMiao Xie <miaox@cn.fujitsu.com>2012-09-06 04:01:51 -0600
committerChris Mason <chris.mason@fusionio.com>2012-10-01 15:19:11 -0400
commit6352b91da1a2108bb8cc5115e8714f90d706f15f (patch)
tree41897bbe836bb7f8b2bbfef24528407d1c79b8b0 /fs/btrfs/relocation.c
parentb9a8cc5bef963b76c5b6c3016b7e91988a3e758b (diff)
Btrfs: use a slab for ordered extents allocation
The ordered extent allocation is in the fast path of the IO, so use a slab to improve the speed of the allocation. "Size of the struct is 280, so this will fall into the size-512 bucket, giving 8 objects per page, while own slab will pack 14 objects into a page. Another benefit I see is to check for leaked objects when the module is removed (and the cache destroy takes place)." -- David Sterba Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Diffstat (limited to 'fs/btrfs/relocation.c')
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