| commit | 8426e1f6af0fd7f44d040af7263750c5a52f3cc3 | [log] [tgz] |
|---|---|---|
| author | Nick Piggin <nickpiggin@yahoo.com.au> | Sun Nov 13 16:07:25 2005 -0800 |
| committer | Linus Torvalds <torvalds@g5.osdl.org> | Sun Nov 13 18:14:16 2005 -0800 |
| tree | 827bd2588c2b73d11cea6869de8ff42dba134375 | |
| parent | 4a6dae6d382e9edf3ff440b819e554ed706359bc [diff] |
[PATCH] atomic: inc_not_zero Introduce an atomic_inc_not_zero operation. Make this a special case of atomic_add_unless because lockless pagecache actually wants atomic_inc_not_negativeone due to its offset refcount. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>