summaryrefslogtreecommitdiff
path: root/tools/perf/Documentation/perf-lock.txt
diff options
context:
space:
mode:
authorTejun Heo <tj@kernel.org>2010-02-17 10:50:50 +0900
committerFrederic Weisbecker <fweisbec@gmail.com>2010-02-27 16:23:39 +0100
commit44ee63587dce85593c22497140db16f4e5027860 (patch)
tree0b3d45f9755080f1c7362a8a2eb69e326b0e2f85 /tools/perf/Documentation/perf-lock.txt
parent018cbffe6819f6f8db20a0a3acd9bab9bfd667e4 (diff)
downloadlinux-44ee63587dce85593c22497140db16f4e5027860.tar.gz
percpu: Add __percpu sparse annotations to hw_breakpoint
Add __percpu sparse annotations to hw_breakpoint. 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. In kernel/hw_breakpoint.c, per_cpu(nr_task_bp_pinned, cpu)'s will trigger spurious noderef related warnings from sparse. Changing it to &per_cpu(nr_task_bp_pinned[0], cpu) will work around the problem but deemed to ugly by the maintainer. Leave it alone until better solution can be found. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: K.Prasad <prasad@linux.vnet.ibm.com> LKML-Reference: <4B7B4B7A.9050902@kernel.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'tools/perf/Documentation/perf-lock.txt')
0 files changed, 0 insertions, 0 deletions