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| author |   Sven Schnelle <svens@linux.ibm.com> | 2019-12-18 08:44:27 +0100 |
|---|---|---|
| committer |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-12-21 16:08:59 -0500 |
| commit | fe6e096a5bbf73a142f09c72e7aa2835026eb1a3 (patch) | |
| tree | 517ee633a516434cfc8a99cda6d9cf9e60c3322a /fs/pipe.c | |
| parent | samples/trace_printk: Wait for IRQ work to finish (diff) | |
| download | linux-dev-fe6e096a5bbf73a142f09c72e7aa2835026eb1a3.tar.xz linux-dev-fe6e096a5bbf73a142f09c72e7aa2835026eb1a3.zip | |
tracing: Fix endianness bug in histogram trigger
At least on PA-RISC and s390 synthetic histogram triggers are failing
selftests because trace_event_raw_event_synth() always writes a 64 bit
values, but the reader expects a field->size sized value. On little endian
machines this doesn't hurt, but on big endian this makes the reader always
read zero values.
Link: http://lore.kernel.org/linux-trace-devel/20191218074427.96184-4-svens@linux.ibm.com
Cc: stable@vger.kernel.org
Fixes: 4b147936fa509 ("tracing: Add support for 'synthetic' events")
Acked-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'fs/pipe.c')
0 files changed, 0 insertions, 0 deletions