alloc_percpu: Use __raw_get_cpu_ptr in fs/ext4 Impact: slight efficiency improvement on some archs. Let's use __raw_get_cpu_ptr now, rather than per_cpu_ptr(..., raw_smp_processor_id()). Signed-off-by: Rusty Russell Cc: Theodore Ts'o Cc: adilger@sun.com Cc: linux-ext4@vger.kernel.org --- fs/ext4/mballoc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4007,7 +4007,7 @@ static void ext4_mb_group_or_file(struct * per cpu locality group is to reduce the contention between block * request from multiple CPUs. */ - ac->ac_lg = per_cpu_ptr(sbi->s_locality_groups, raw_smp_processor_id()); + ac->ac_lg = __raw_get_cpu_ptr(sbi->s_locality_groups); /* we're going to use group allocation */ ac->ac_flags |= EXT4_MB_HINT_GROUP_ALLOC;