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| author | Davidlohr Bueso <davidlohr@hp.com> | 2014-07-30 22:41:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-08-13 10:31:59 +0200 |
| commit | 42fa566bd74aa7b95413fb00611ec983b488222d (patch) | |
| tree | ed8785c7eb273aca842fc78972e7904a247ae28e /fs/adfs | |
| parent | locking/mutexes: Standardize arguments in lock/unlock slowpaths (diff) | |
| download | linux-42fa566bd74aa7b95413fb00611ec983b488222d.tar.xz linux-42fa566bd74aa7b95413fb00611ec983b488222d.zip | |
locking/mutexes: Document quick lock release when unlocking
When unlocking, we always want to reach the slowpath with the lock's counter
indicating it is unlocked. -- as returned by the asm fastpath call or by
explicitly setting it. While doing so, at least in theory, we can optimize
and allow faster lock stealing.
When unlocking, we always want to reach the slowpath with the lock's counter
indicating it is unlocked. -- as returned by the asm fastpath call or by
explicitly setting it. While doing so, at least in theory, we can optimize
and allow faster lock stealing.
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: jason.low2@hp.com
Cc: aswin@hp.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1406752916-3341-2-git-send-email-davidlohr@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/adfs')
0 files changed, 0 insertions, 0 deletions