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| author | Eric Dumazet <[email protected]> | 2007-12-25 04:57:56 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2008-01-28 23:00:05 +0000 |
| commit | 21371f768bf7127ee45bfaadd17899df6a439e8f (patch) | |
| tree | 91b5debf1d861a40c942a33f1286b70031a94305 /net/ipv4/tcp_output.c | |
| parent | [XFRM]: Fix outbound statistics. (diff) | |
| download | kernel-21371f768bf7127ee45bfaadd17899df6a439e8f.tar.gz kernel-21371f768bf7127ee45bfaadd17899df6a439e8f.zip | |
[SOCK] Avoid divides in sk_stream_pages() and __sk_stream_mem_reclaim()
sk_forward_alloc being signed, we should take care of divides by
SK_STREAM_MEM_QUANTUM we do in sk_stream_pages() and
__sk_stream_mem_reclaim()
This patchs introduces SK_STREAM_MEM_QUANTUM_SHIFT, defined
as ilog2(SK_STREAM_MEM_QUANTUM), to be able to use right
shifts instead of plain divides.
This should help compiler to choose right shifts instead of
expensive divides (as seen with CONFIG_CC_OPTIMIZE_FOR_SIZE=y on x86)
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_output.c')
0 files changed, 0 insertions, 0 deletions