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| author | Shaohua Li <shli@kernel.org> | 2012-08-02 02:33:00 +0400 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-08-02 02:33:00 +0400 |
| commit | 8811b5968f6216e97ccb9fe7b9883af39e339921 (patch) | |
| tree | 9693073f6cb1bcd8743d429d7d3330018bc0ce6d /arch/mips/loongson | |
| parent | 74018dc3063a2c729fc73041c0a9f03aac995920 (diff) | |
| download | linux-8811b5968f6216e97ccb9fe7b9883af39e339921.tar.xz | |
raid5: make_request use batch stripe release
make_request() does stripe release for every stripe and the stripe usually has
count 1, which makes previous release_stripe() optimization not work. In my
test, this release_stripe() becomes the heaviest pleace to take
conf->device_lock after previous patches applied.
Below patch makes stripe release batch. All the stripes will be released in
unplug. The STRIPE_ON_UNPLUG_LIST bit is to protect concurrent access stripe
lru.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'arch/mips/loongson')
0 files changed, 0 insertions, 0 deletions