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authorIngo Molnar <mingo@elte.hu>2006-07-10 04:44:04 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-10 13:24:14 -0700
commitd6d897cec29252b8d0785198cfa6ca16d30c739d (patch)
tree01b138b10c7afa0e88e9720be3d3616e4f0bccc1 /net/sched
parent55794a412fdf9af1744800e5020a4ec6b21e3cdc (diff)
[PATCH] lockdep: core, reduce per-lock class-cache size
lockdep_map is embedded into every lock, which blows up data structure sizes all around the kernel. Reduce the class-cache to be for the default class only - that is used in 99.9% of the cases and even if we dont have a class cached, the lookup in the class-hash is lockless. This change reduces the per-lock dep_map overhead by 56 bytes on 64-bit platforms and by 28 bytes on 32-bit platforms. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'net/sched')
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