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percpu: add __percpu sparse annotations to core kernel subsystems

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Add __percpu sparse annotations to core subsystems.

These annotations are to make sparse consider percpu variables to be
in a different address space and warn if accessed without going
through percpu accessors.  This patch doesn't affect normal builds.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-mm@kvack.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dipankar Sarma <dipankar@in.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Eric Biederman <ebiederm@xmission.com>
This commit is contained in:
Tejun Heo 2010-02-02 14:38:57 +09:00
parent ab386128f2
commit 43cf38eb5c
11 changed files with 22 additions and 20 deletions
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4
include/linux/blktrace_api.h
View file

@ -150,8 +150,8 @@ struct blk_user_trace_setup {
struct blk_trace {
int trace_state;
struct rchan *rchan;
unsigned long *sequence;
unsigned char *msg_data;
unsigned long __percpu *sequence;
unsigned char __percpu *msg_data;
u16 act_mask;
u64 start_lba;
u64 end_lba;