diff options
| author | Christoph Lameter <[email protected]> | 2010-12-06 11:40:05 -0600 |
|---|---|---|
| committer | Tejun Heo <[email protected]> | 2010-12-17 15:18:05 +0100 |
| commit | ee1be8626355e6a1f3f8c44e2351ff2661c5998d (patch) | |
| tree | cc7d20969444eb5e3c0541991014ef4fc5332185 | |
| parent | cfb824349556904b319464139be5c75fce983b0d (diff) | |
fs: Use this_cpu_inc_return in buffer.c
__this_cpu_inc can create a single instruction with the same effect
as the _get_cpu_var(..)++ construct in buffer.c.
Cc: Wu Fengguang <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Acked-by: H. Peter Anvin <[email protected]>
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
| -rw-r--r-- | fs/buffer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 137d9de00e24..2219a76e2caf 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -3201,7 +3201,7 @@ static void recalc_bh_state(void) int i; int tot = 0; - if (__get_cpu_var(bh_accounting).ratelimit++ < 4096) + if (__this_cpu_inc_return(bh_accounting.ratelimit) - 1 < 4096) return; __this_cpu_write(bh_accounting.ratelimit, 0); for_each_online_cpu(i) |