diff options
| author | Manfred Spraul <manfred@colorfullife.com> | 2002-12-21 20:04:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-12-21 20:04:34 -0800 |
| commit | 5e163a89fedacf47100735e738c43687d3bf18a2 (patch) | |
| tree | c124ec63485ef54cf644ecb80461e4adb5173032 /include/linux | |
| parent | d21918b6a35805753c9f08f7d3eb29004ec86066 (diff) | |
[PATCH] reorder 'rep;nop;' in the spinlock macro
According to Intel's recommendation, 'rep;nop; should be called before
testing if the lock variable was modified (i.e. rep nop;cmp;jcc). The
current implementation does it the wrong way around: first test, then
wait, then branch. I've asked Asit Mallik from Intel, and he recommended
to change it.
It should be at least consistent: Right now, spinlock uses
'cmp;rep nop;jcc', rwlock uses 'rep nop;cmp;jcc'
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions