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linux/include/trace/events
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Pratyush Anand 0e592fde0a net: sunrpc: fix tracepoint Warning: unknown op '->' 
commit 051ac3848a upstream.

`perf stat  -e sunrpc:svc_xprt_do_enqueue true` results in

Warning: unknown op '->'
Warning: [sunrpc:svc_xprt_do_enqueue] unknown op '->'

Similar warning for svc_handle_xprt as well.

Actually TP_printk() should never dereference an address saved in the ring
buffer that points somewhere in the kernel. There's no guarantee that that
object still exists (with the exception of static strings).

Therefore change all the arguments for TP_printk(), so that it references
values existing in the ring buffer only.

While doing that, also fix another possible bug when argument xprt could be
NULL and TP_fast_assign() tries to access it's elements.

Signed-off-by: Pratyush Anand <panand@redhat.com>
Reviewed-by: Jeff Layton <jeff.layton@primarydata.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Fixes: 83a712e0af "sunrpc: add some tracepoints around ..."
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2015-09-29 19:26:10 +02:00
..
9p.h net/9p/tracing: Export enums in tracepoints to userspace 2015-04-08 09:39:59 -04:00
asoc.h ASoC: Remove snd_soc_cache_sync() implementation 2014-11-09 09:06:30 +00:00
bcache.h bcache: fix crash in bcache_btree_node_alloc_fail tracepoint 2014-08-04 15:23:03 -07:00
block.h blktrace: fix accounting of partially completed requests 2014-03-05 16:11:21 -07:00
btrfs.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
clk.h clk: Add tracepoints for hardware operations 2015-03-12 12:18:51 -07:00
cma.h mm: cma: add trace events for CMA allocations and freeings 2015-04-15 16:35:19 -07:00
compaction.h mm/compaction: add tracepoint to observe behaviour of compaction defer 2015-02-11 17:06:04 -08:00
context_tracking.h context_tracking: User/kernel broundary cross trace events 2013-08-14 17:14:48 +02:00
ext3.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
ext4.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
f2fs.h Merge tag 'for-f2fs-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs 2015-04-18 11:17:20 -04:00
fence.h fence: dma-buf cross-device synchronization (v18) 2014-07-08 12:18:56 -07:00
filelock.h locks: generic_delete_lease doesn't need a file_lock at all 2014-10-07 14:06:12 -04:00
filemap.h tracing, mm: Record pfn instead of pointer to struct page 2015-04-13 11:44:52 -03:00
gfpflags.h mm: get rid of __GFP_KMEMCG 2014-06-04 16:53:56 -07:00
gpio.h gpio: add trace events for setting direction and value 2011-05-20 00:40:19 -06:00
host1x.h gpu: host1x: Use struct host1x_bo pointers in traces 2014-11-13 16:11:32 +01:00
hswadsp.h Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of', 'asoc/topic/omap', 'asoc/topic/pxa' and 'asoc/topic/rcar' into asoc-next 2014-03-12 23:04:35 +00:00
i2c.h i2c: Add message transfer tracepoints for SMBUS [ver #2] 2014-03-13 22:15:07 +01:00
intel-sst.h tracing: Add TRACE_SYSTEM_VAR to intel-sst 2015-04-07 12:31:12 -04:00
iommu.h iommu: Change trace unmap api to report unmapped size 2015-01-19 15:19:31 +01:00
ipi.h tracepoint: add generic tracepoint definitions for IPI tracing 2014-08-07 20:40:40 -04:00
irq.h irq/tracing: Export enums in tracepoints to user space 2015-04-08 09:40:00 -04:00
jbd.h jbd: Write journal superblock with WRITE_FUA after checkpointing 2012-05-15 23:34:37 +02:00
jbd2.h jbd2: trace when lock_buffer in do_get_write_access takes a long time 2013-04-21 16:47:54 -04:00
kmem.h tracing/mm: don't trace mm_page_pcpu_drain on offline cpus 2015-05-28 18:25:18 -07:00
kvm.h Fairly small update, but there are some interesting new features. 2015-02-13 09:55:09 -08:00
libata.h libata: Add tracepoints 2015-03-27 11:59:22 -04:00
lock.h tracing: Factorize lock events in a lock class 2010-05-09 13:45:35 +02:00
mce.h tracing: Fix event alignment: mce:mce_record 2011-03-10 10:34:28 -05:00
migrate.h mm: tracing: Export enums in tracepoints to user space 2015-04-08 09:40:01 -04:00
module.h tracing: %pF is only for function pointers 2015-03-25 08:57:22 -04:00
napi.h napi: Convert trace_napi_poll to TRACE_EVENT 2010-09-07 17:51:01 +02:00
net.h net: rename vlan_tx_* helpers since "tx" is misleading there 2015-01-13 17:51:08 -05:00
nmi.h x86: Add NMI duration tracepoints 2013-06-23 11:52:58 +02:00
oom.h mm, oom: change type of oom_score_adj to short 2012-12-11 17:22:27 -08:00
pagemap.h mm: pagemap: avoid unnecessary overhead when tracepoints are deactivated 2014-08-06 18:01:20 -07:00
power.h PM / sleep: trace events for device PM callbacks 2014-06-11 02:16:48 +02:00
power_cpu_migrate.h ARM: bL_switcher/trace: Add trace trigger for trace bootstrapping 2013-09-23 18:47:30 -04:00
printk.h printk/tracing: rework console tracing 2013-04-29 18:28:13 -07:00
random.h tracing: %pF is only for function pointers 2015-03-25 08:57:22 -04:00
rcu.h rcu: Remove redundant TREE_PREEMPT_RCU config option 2014-10-29 10:20:05 -07:00
regulator.h regulator: Add basic trace facilities 2011-01-12 14:33:00 +00:00
rpm.h device.h: audit and cleanup users in main include dir 2012-03-16 10:38:24 -04:00
sched.h sched: Fix the PREEMPT_ACTIVE check in __trace_sched_switch_state() 2014-10-28 10:47:53 +01:00
scsi.h scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 2014-11-24 20:01:40 +01:00
signal.h tracing: let trace_signal_generate() report more info, kill overflow_fail/lose_info 2012-01-13 18:48:50 +01:00
skb.h tracing: Fix event alignment: skb:kfree_skb 2011-03-10 10:34:31 -05:00
sock.h core: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
spi.h spi: Provide common spi_message processing loop 2013-10-11 20:09:50 +01:00
sunrpc.h net: sunrpc: fix tracepoint Warning: unknown op '->' 2015-09-29 19:26:10 +02:00
swiotlb.h tracing/events: Add bounce tracing to swiotbl 2013-10-02 12:53:26 -04:00
syscalls.h tracepoint: Fix sparse warnings in tracepoint.c 2014-04-09 10:12:11 -04:00
target.h Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
task.h exec: kill bprm->tcomm[], simplify the "basename" logic 2014-04-07 16:36:05 -07:00
thermal.h thermal: trace: Trace when temperature is above a trip point 2014-07-29 09:28:43 -04:00
thp.h powerpc/thp: Add tracepoints to track hugepage invalidate 2014-08-13 18:20:42 +10:00
timer.h Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-05-05 13:23:27 -07:00
tlb.h x86/tlb/trace: Export enums in used by tlb_flush tracepoint 2015-04-08 09:39:58 -04:00
udp.h udp: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
v4l2.h v4l: Export enums used by tracepoints to user space 2015-04-08 10:58:25 -04:00
vmscan.h tracing, mm: Record pfn instead of pointer to struct page 2015-04-13 11:44:52 -03:00
workqueue.h workqueue: rename cpu_workqueue to pool_workqueue 2013-02-13 19:29:12 -08:00
writeback.h block: discard bdi_unregister() in favour of bdi_destroy() 2015-05-28 10:12:42 -06:00
xen.h x86: expose number of page table levels on Kconfig level 2015-04-14 16:49:02 -07:00