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authorDavid S. Miller <davem@davemloft.net>2017-02-11 20:59:43 -0500
committerDavid S. Miller <davem@davemloft.net>2017-02-11 20:59:43 -0500
commitdfcb7a14866b8c34b2d3a74ae31631e1d4e7f591 (patch)
treeb7d5175e7c84f0a806b52064b34f1ef0fd780111 /include/net/dsa.h
parent35eeacf1820a08305c2b0960febfa190f5a6dd63 (diff)
parent235a9d89da976e2975b3de9afc0bed7b72557983 (diff)
Merge branch 'ipvtap'
Sainath Grandhi says: ==================== Refactor macvtap to re-use tap functionality by other virtual intefaces Tap character devices can be implemented on other virtual interfaces like ipvlan, similar to macvtap. Source code for tap functionality in macvtap can be re-used for this purpose. This patch series splits macvtap source into two modules, macvtap and tap. This patch series also includes a patch for implementing tap character device driver based on the IP-VLAN network interface, called ipvtap. These patches are tested on x86 platform. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dsa.h')
0 files changed, 0 insertions, 0 deletions
/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/pmu-events/arch/x86/nehalemep')