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| author | Nick Piggin <npiggin@suse.de> | 2008-07-26 04:45:28 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-26 21:00:06 +0200 |
| commit | 30002ed2e41830ec03ec3e577ad83ac6b188f96e (patch) | |
| tree | 13896f3038e391eb41246455239d7678cf51b011 /lib/radix-tree.c | |
| parent | x86: support 1GB hugepages with get_user_pages_lockless() (diff) | |
| download | linux-30002ed2e41830ec03ec3e577ad83ac6b188f96e.tar.xz linux-30002ed2e41830ec03ec3e577ad83ac6b188f96e.zip | |
mm: readahead scan lockless
radix_tree_next_hole() is implemented as a series of radix_tree_lookup()s.
So it can be called locklessly, under rcu_read_lock().
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Reviewed-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/radix-tree.c')
0 files changed, 0 insertions, 0 deletions