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| author |   Mel Gorman <mgorman@suse.de> | 2012-07-31 16:44:03 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 18:42:45 -0700 |
| commit | b37f1dd0f543d9714f96c2f9b9f74f7bdfdfdf31 (patch) | |
| tree | 4d01913bd950d60c65605cd14e0ff88b74f5f716 /include/trace | |
| parent | mm: slub: optimise the SLUB fast path to avoid pfmemalloc checks (diff) | |
| download | linux-dev-b37f1dd0f543d9714f96c2f9b9f74f7bdfdfdf31.tar.xz linux-dev-b37f1dd0f543d9714f96c2f9b9f74f7bdfdfdf31.zip | |
mm: introduce __GFP_MEMALLOC to allow access to emergency reserves
__GFP_MEMALLOC will allow the allocation to disregard the watermarks, much
like PF_MEMALLOC. It allows one to pass along the memalloc state in
object related allocation flags as opposed to task related flags, such as
sk->sk_allocation. This removes the need for ALLOC_PFMEMALLOC as callers
using __GFP_MEMALLOC can get the ALLOC_NO_WATERMARK flag which is now
enough to identify allocations related to page reclaim.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: David Miller <davem@davemloft.net>
Cc: Neil Brown <neilb@suse.de>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/gfpflags.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/trace/events/gfpflags.h b/include/trace/events/gfpflags.h index 9fe3a36646e9..d6fd8e5b14b7 100644 --- a/include/trace/events/gfpflags.h +++ b/include/trace/events/gfpflags.h @@ -30,6 +30,7 @@ {(unsigned long)__GFP_COMP, "GFP_COMP"}, \ {(unsigned long)__GFP_ZERO, "GFP_ZERO"}, \ {(unsigned long)__GFP_NOMEMALLOC, "GFP_NOMEMALLOC"}, \ + {(unsigned long)__GFP_MEMALLOC, "GFP_MEMALLOC"}, \ {(unsigned long)__GFP_HARDWALL, "GFP_HARDWALL"}, \ {(unsigned long)__GFP_THISNODE, "GFP_THISNODE"}, \ {(unsigned long)__GFP_RECLAIMABLE, "GFP_RECLAIMABLE"}, \ |