Btrfs: add branch prediction hints in the read page end IO function

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This patch add some branch prediction hints into the end IO function
of the read page, it reduced the percentage of the branch misses from
5.5% to 4.9%.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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Miao Xie 2013-07-25 19:22:33 +08:00 • committed by Chris Mason

parent 09a7f7a289

commit f2a09da9d0

1 changed files with 9 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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14

fs/btrfs/extent_io.c

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