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authorKent Overstreet <kmo@daterainc.com>2013-08-22 05:36:45 +0400
committerKent Overstreet <kmo@daterainc.com>2013-11-11 09:56:42 +0400
commit098fb25498214069e6bbf908515f2952dd7654d0 (patch)
treef170596e7abb95f78a6b89044945aaea81919214 /drivers/md/bcache/debug.h
parent28935ab5163c49ca5c199d67335e5e3c72c50853 (diff)
downloadlinux-098fb25498214069e6bbf908515f2952dd7654d0.tar.xz
bcache: Delete some slower inline asm
Never saw a profile of bset_search_tree() where it wasn't bottlenecked on memory until I got my new Haswell machine, but when I tried it there it was suddenly burning 20% of the cpu in the inner loop on shrd... Turns out, the version of shrd that takes 64 bit operands has a 9 cycle latency. hah. Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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