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authorPaul Jackson <pj@sgi.com>2006-01-08 01:02:03 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:13:45 -0800
commit7edc59628b2f5d6516b4677b3b56f5f056e45cd9 (patch)
treecc0f07bc07156c6f805a72c39ae2d5655a97fede /drivers/mtd/onenand/generic.c
parent6b9c2603ce07f70de9c7a8d335ecd028e8ff11f3 (diff)
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[PATCH] cpuset: mark number_of_cpusets read_mostly
Mark cpuset global 'number_of_cpusets' as __read_mostly. This global is accessed everytime a zone is considered in the zonelist loops beneath __alloc_pages, looking for a free memory page. If number_of_cpusets is just one, then we can short circuit the mems_allowed check. Since this global is read alot on a hot path, and written rarely, it is an excellent candidate for __read_mostly. Thanks to Christoph Lameter for the suggestion. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/mtd/onenand/generic.c')
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