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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2013-04-29 15:06:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 15:54:28 -0700 |
| commit | 8375ad98cc1defc36adf4a77d9ea1e71db51a371 (patch) | |
| tree | b9cb0c43c35ca982c86f638d87bf88cbbf65e70b /mm/rmap.c | |
| parent | 250297edf83292c831fbf4504df54953c2aacfe4 (diff) | |
| download | linux-8375ad98cc1defc36adf4a77d9ea1e71db51a371.tar.bz2 | |
vm: adjust ifdef for TINY_RCU
There is an ifdef in page_cache_get_speculative() that checks for !SMP
and TREE_RCU, which has been an impossible combination since the advent
of TINY_RCU. The ifdef enables a fastpath that is valid when preemption
is disabled by rcu_read_lock() in UP systems, which is the case when
TINY_RCU is enabled. This commit therefore adjusts the ifdef to
generate the fastpath when TINY_RCU is enabled.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/rmap.c')
0 files changed, 0 insertions, 0 deletions