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authorRik van Riel <riel@surriel.com>2013-04-30 19:15:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-01 08:12:58 -0700
commit9f1bc2c9022c1d4944c4a1a44c2f365487420aca (patch)
treea1764801b992d87e1c488035135f10ed80413944 /ipc/msg.c
parentc460b662d5cae467f1c341c59b02a5c5e68fed0b (diff)
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ipc,sem: have only one list in struct sem_queue
Having only one list in struct sem_queue, and only queueing simple semaphore operations on the list for the semaphore involved, allows us to introduce finer grained locking for semtimedop. Signed-off-by: Rik van Riel <riel@redhat.com> Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Chegu Vinod <chegu_vinod@hp.com> Cc: Emmanuel Benisty <benisty.e@gmail.com> Cc: Jason Low <jason.low2@hp.com> Cc: Michel Lespinasse <walken@google.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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