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authorDavid Howells <dhowells@redhat.com>2009-04-28 15:01:38 +0100
committerIngo Molnar <mingo@elte.hu>2009-04-29 14:15:55 +0200
commit50fa610a3b6ba7cf91d7a92229177dfaff2b81a1 (patch)
tree0369fc3269a18f8d2ffcedaebe4ac875bbe9870c /lib/dma-debug.c
parent56a50adda49b2020156616c4eb15353e0f9ad7de (diff)
sched: Document memory barriers implied by sleep/wake-up primitives
Add a section to the memory barriers document to note the implied memory barriers of sleep primitives (set_current_state() and wrappers) and wake-up primitives (wake_up() and co.). Also extend the in-code comments on the wake_up() functions to note these implied barriers. [ Impact: add documentation ] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <20090428140138.1192.94723.stgit@warthog.procyon.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/dma-debug.c')
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