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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-27 16:01:52 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-27 16:01:52 +0100
commita3683e0c1410c5c8136a7a93b0336ce88d3b893a (patch)
treec022266622274ad38111664c23b5608b53bfe58e /net/x25/x25_out.c
parent83e526f2a2fa4b2e82b6bd3ddbb26b70acfa8947 (diff)
parent5d03a2fd2292e71936c4235885c35ccc3c94695b (diff)
Merge tag 'usb-serial-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes: USB-serial fixes for v4.10-rc6 Just a couple of new device ids. Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'net/x25/x25_out.c')
0 files changed, 0 insertions, 0 deletions
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 'net/ipv4/tcp.c')