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author | Dan Williams <dan.j.williams@intel.com> | 2011-06-07 18:50:55 -0700 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2011-07-03 04:04:51 -0700 |
commit | ac668c69709c7d927015c5cf3d9e87bf4eaaf57d (patch) | |
tree | 16a42117d260a86b8217d266ab65b25438c48e06 /drivers/scsi/isci/port.c | |
parent | 9b917987fd16d0687afe550a02f68099419f5d43 (diff) | |
download | op-kernel-dev-ac668c69709c7d927015c5cf3d9e87bf4eaaf57d.zip op-kernel-dev-ac668c69709c7d927015c5cf3d9e87bf4eaaf57d.tar.gz |
isci: cleanup/optimize pool implementation
The circ_buf macros are ~6% faster, as measured by perf, because they take
advantage of power-of-two math assumptions i.e. no test and branch for
rollover. Their semantics are clearer than the hidden side effects in pool.h
(like sci_pool_get() which hides an assignment).
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/port.c')
0 files changed, 0 insertions, 0 deletions