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author | Tom Zanussi <tzanussi@gmail.com> | 2010-05-05 09:27:40 +0400 |
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committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-05-09 15:49:52 +0400 |
commit | 794e43b56c18b95fc9776c914a2659e7d558a352 (patch) | |
tree | 4c31bcb7ed0e7e23b5da02a4b4f6d2c218236463 /drivers/scsi/vmw_pvscsi.h | |
parent | 2c193c736803ceb547daec725e5c5d992d039f20 (diff) | |
download | linux-794e43b56c18b95fc9776c914a2659e7d558a352.tar.xz |
perf/live-mode: Handle payload-less events
Some events, such as the PERF_RECORD_FINISHED_ROUND event consist of
only an event header and no data. In this case, a 0-length payload
will be read, and the 0 return value will be wrongly interpreted as an
'unexpected end of event stream'.
This patch allows for proper handling of data-less events by skipping
0-length reads.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
LKML-Reference: <1273038527.6383.51.camel@tropicana>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'drivers/scsi/vmw_pvscsi.h')
0 files changed, 0 insertions, 0 deletions