summaryrefslogtreecommitdiff
path: root/tools/perf/arch/sparc/Makefile
diff options
context:
space:
mode:
authorJiri Pirko <jiri@mellanox.com>2017-02-03 10:29:05 +0100
committerDavid S. Miller <davem@davemloft.net>2017-02-03 16:35:42 -0500
commitb862815c3ee7b49ec20a9ab25da55a5f0bcbb95e (patch)
tree51e6e326d62f70ec1aac5c687fbf89f8351d116c /tools/perf/arch/sparc/Makefile
parent8708ecf01d454607f15fe1b378c8b88de3b9c34b (diff)
list: introduce list_for_each_entry_from_reverse helper
Similar to list_for_each_entry_continue and its reverse variant list_for_each_entry_continue_reverse, introduce reverse helper for list_for_each_entry_from. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/arch/sparc/Makefile')
0 files changed, 0 insertions, 0 deletions
bsys_online+0x64/0xe0 device_online+0xb4/0x120 online_store+0xb4/0xc0 dev_attr_store+0x68/0xa0 sysfs_kf_write+0x80/0xb0 kernfs_fop_write+0x17c/0x250 __vfs_write+0x6c/0x1e0 vfs_write+0xd0/0x270 SyS_write+0x6c/0x110 system_call+0x38/0xe0 Examination of the queue showed a single reference (no PERCPU_COUNT_BIAS, and __PERCPU_REF_DEAD, __PERCPU_REF_ATOMIC set) and no requests. However, conditions at the time of the race are count of PERCPU_COUNT_BIAS + 0 and __PERCPU_REF_DEAD and __PERCPU_REF_ATOMIC set. The fix is to make the tryget routines use an actual boolean internally instead of the atomic long result truncated to a int. Fixes: e625305b3907 percpu-refcount: make percpu_ref based on longs instead of ints Link: https://bugzilla.kernel.org/show_bug.cgi?id=190751 Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com> Reviewed-by: Jens Axboe <axboe@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: e625305b3907 ("percpu-refcount: make percpu_ref based on longs instead of ints") Cc: stable@vger.kernel.org # v3.18+
Diffstat (limited to 'tools/perf/arch/s390/include')