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authorArnd Bergmann <arnd@arndb.de>2017-02-06 17:26:30 +0100
committerDavid S. Miller <davem@davemloft.net>2017-02-07 11:44:12 -0500
commit8d1fb01df8f64af14c833805dcbd05bf4582e028 (patch)
treedbf16a8882eb9d318420f16553160fb7e8770c55 /tools/include
parentbb4005bae3dab0dd21b239b1da193053151c07ba (diff)
mlxsw: add psample dependency for spectrum
When PSAMPLE is a loadable module, spectrum must not be built-in: drivers/net/built-in.o: In function `mlxsw_sp_rx_listener_sample_func': spectrum.c:(.text+0xe357e): undefined reference to `psample_sample_packet' This adds a Kconfig dependency to enforce usable configurations. Fixes: 98d0f7b9acda ("mlxsw: spectrum: Add packet sample offloading support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Yotam Gigi <yotamg@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/include')
0 files changed, 0 insertions, 0 deletions
with percpu_ref_tryget (blk_mq_timeout_work). Sample stack trace: __switch_to+0x2c0/0x450 __schedule+0x2f8/0x970 schedule+0x48/0xc0 blk_mq_freeze_queue_wait+0x94/0x120 blk_mq_queue_reinit_work+0xb8/0x180 blk_mq_queue_reinit_prepare+0x84/0xa0 cpuhp_invoke_callback+0x17c/0x600 cpuhp_up_callbacks+0x58/0x150 _cpu_up+0xf0/0x1c0 do_cpu_up+0x120/0x150 cpu_subsys_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/Documentation/Makefile')