From: Henrik Austad Date: Wed, 27 Nov 2013 22:18:00 +0000 (+0100) Subject: Documentation/robust-futex-API: Count properly to 4 X-Git-Tag: upstream/snapshot3+hdmi~3653^2~22 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=854ff82ab085aed7509f6fb90f79ce6c41ee1fa4;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git Documentation/robust-futex-API: Count properly to 4 A strictly monotonically increasing sequence is normally used in numbered lists as they provide an intuitive ordering of the elements. However, in situations where race conditions can appear, this assumption breaks down and you can end up with unpredictable results, leading to a rather confusing list :-) This changes the numbered list 1,2,2,2 to the more intuitive 1,2,3,4. Introduced in: 2eec9ad91f71 [PATCH] lightweight robust futexes: docs Signed-off-by: Henrik Austad Link: http://lkml.kernel.org/r/1385590680-8110-1-git-send-email-henrik@austad.us Signed-off-by: Ingo Molnar --- diff --git a/Documentation/robust-futex-ABI.txt b/Documentation/robust-futex-ABI.txt index fd1cd8a..16eb314 100644 --- a/Documentation/robust-futex-ABI.txt +++ b/Documentation/robust-futex-ABI.txt @@ -146,8 +146,8 @@ On removal: 1) set the 'list_op_pending' word to the address of the 'lock entry' to be removed, 2) remove the lock entry for this lock from the 'head' list, - 2) release the futex lock, and - 2) clear the 'lock_op_pending' word. + 3) release the futex lock, and + 4) clear the 'lock_op_pending' word. On exit, the kernel will consider the address stored in 'list_op_pending' and the address of each 'lock word' found by walking