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authorDaniel Borkmann <dborkman@redhat.com>2013-06-04 14:08:46 +0200
committerDaniel Borkmann <dborkman@redhat.com>2013-06-04 14:08:46 +0200
commit214cb42c626cfe5fe5d9ef1e83e7b23cca1cf02b (patch)
treed6a9765bb5ebabe664d9cdae6eafe46117618186 /astraceroute/.gitignore
parentf712d7a28192cbfcde5845d0c2e78fefd7386273 (diff)
ioops: fix build error by renaming 'len' variable
Argh, forgot to rename variables in read_blob_or_die/write_blob_or_die. ioops.c: In function ‘read_blob_or_die’: ioops.c:105:30: error: ‘len’ undeclared (first use in this function) ioops.c:105:30: note: each undeclared identifier is reported only once for each function it appears in ioops.c: In function ‘write_blob_or_die’: ioops.c:116:31: error: ‘len’ undeclared (first use in this function) make: *** [netsniff-ng/ioops.o] Error 1 Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Diffstat (limited to 'astraceroute/.gitignore')
0 files changed, 0 insertions, 0 deletions
corresponding percpu_ref_put(). This was seen when performing CPU hotplug during I/O, as hangs in blk_mq_freeze_queue_wait where percpu_ref_kill (blk_mq_freeze_queue_start) raced 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 'include/trace/events/f2fs.h')