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| author | Ian Forbes <ian.forbes@broadcom.com> | 2025-05-30 13:35:08 -0500 |
|---|---|---|
| committer | Zack Rusin <zack.rusin@broadcom.com> | 2025-06-17 22:49:31 -0400 |
| commit | c82f55f4aa57bf5ba412d55856fe50514b47b971 (patch) | |
| tree | d3ed4789760119f211eaf2a9f096f59f0efee154 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | a72002cb181f350734108228b24c5d10d358f95a (diff) | |
drm/vmwgfx: Update last_read_seqno under the fence lock
There was a possible race in vmw_update_seqno. Because of this race it
was possible for last_read_seqno to go backwards. Remove this function
and replace it with vmw_update_fences which now sets and returns the
last_read_seqno while holding the fence lock. This serialization via the
fence lock ensures that last_read_seqno is monotonic again.
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://lore.kernel.org/r/20250530183510.733175-1-ian.forbes@broadcom.com
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions