mm: use lockless radix-tree probe

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Probing pages and radix_tree_tagged are lockless operations with the lockless
radix-tree.  Convert these users to RCU locking rather than using tree_lock.

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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Nick Piggin 2007-10-16 01:24:40 -07:00 • committed by Linus Torvalds

parent 557ed1fa26

commit 0012818810

2 changed files with 5 additions and 9 deletions

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8

mm/page-writeback.c

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6

mm/readahead.c

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