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| author | Shaohua Li <shaohua.li@intel.com> | 2011-01-07 08:48:28 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-01-07 08:48:28 +0100 |
| commit | 329a67815b596d23daf0caa588ae0800e925320f (patch) | |
| tree | 5fcf8a7c4a4d43b2cc7dc220d6bb25bdf27d153f /kernel/trace | |
| parent | 30d7b9448f03f2c82d0fd44738674cc156a8ce0a (diff) | |
| download | kernel_samsung_smdk4412-329a67815b596d23daf0caa588ae0800e925320f.zip kernel_samsung_smdk4412-329a67815b596d23daf0caa588ae0800e925320f.tar.gz kernel_samsung_smdk4412-329a67815b596d23daf0caa588ae0800e925320f.tar.bz2 | |
block cfq: don't use atomic_t for cfq_group
cfq_group->ref is used with queue_lock hold, the only exception is
cfq_set_request, which looks like a bug to me, so ref doesn't need
to be an atomic and atomic operation is slower.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions