commit | b80d5ccca3a012e91ca64a2a0b13049163a6a698 | [log] [tgz] |
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author | Haiyan Hu <huhaiyan@huawei.com> | Tue Sep 10 11:25:37 2013 +0800 |
committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | Mon Nov 18 17:10:51 2013 -0500 |
tree | 97d64d8d70ecc42f04ee52023c636d84c05e7a21 | |
parent | 2d3c627502f2a9b0a7de06a5a2df2365542a72c9 [diff] |
NVMe: Avoid shift operation when writing cq head doorbell Changes the type of dev->db_stride to unsigned and changes the value stored there to be 1 << the current value. Then there is less calculation to be done at completion time. Signed-off-by: Haiyan Hu <huhaiyan@huawei.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>