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authorNick Piggin <npiggin@suse.de>2007-10-17 02:26:02 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 11:42:46 -0400
commit7a4050791b23c55a451974027d41d72a9b78039b (patch)
treef3956a04f24a2406276804124853535a59c0cbc1 /fs
parentd773ed6b856a96bd6d18b6e04455e3ced0876da4 (diff)
mm: document tree_lock->zone.lock lockorder
zone->lock is quite an "inner" lock and mostly constrained to page alloc as well, so like slab locks, it probably isn't something that is critically important to document here. However unlike slab locks, zone lock could be used more widely in future, and page_alloc.c might possibly have more business to do tricky things with pagecache than does slab. So... I don't think it hurts to document it. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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