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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-09-21 16:08:49 +0200
committerIngo Molnar <mingo@elte.hu>2009-10-06 14:21:50 +0200
commit906010b2134e14a2e377decbadd357b3d0ab9c6a (patch)
tree598b30d08f5ca8df1e00abc295b120fa1bd2c2e2 /mm
parentperf_events: Make ABI definitions available to userspace (diff)
downloadlinux-dev-906010b2134e14a2e377decbadd357b3d0ab9c6a.tar.xz
linux-dev-906010b2134e14a2e377decbadd357b3d0ab9c6a.zip
perf_event: Provide vmalloc() based mmap() backing
Some architectures such as Sparc, ARM and MIPS (basically everything with flush_dcache_page()) need to deal with dcache aliases by carefully placing pages in both kernel and user maps. These architectures typically have to use vmalloc_user() for this. However, on other architectures, vmalloc() is not needed and has the downsides of being more restricted and slower than regular allocations. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: David Miller <davem@davemloft.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1254830228.21044.272.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm')
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