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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-11-05 17:06:40 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-11-06 13:14:05 +0000 |
| commit | e6db7f4d7c5005258b862a5ed1732756fccb6bfa (patch) | |
| tree | b15956ff7e61fe660c7fdffdc3bc154c241a4b42 /mm/shmem.c | |
| parent | bfe60a0272ddadcdfddac77fcfa1860e97c6943d (diff) | |
drm/i915: Break long iterations for get/put shmemfs pages
As we may have to iterate a few thousand elements to acquire and release
the shmemfs backing storage for a GPU object, we need to break up the
long loop with cond_resched() to retain a modicum of low latency for
other processes.
Testcase: igt/benchmarks/gem_syslatency
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Kuo-Hsin Yang <vovoy@chromium.org>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181105170640.26905-1-chris@chris-wilson.co.uk
Diffstat (limited to 'mm/shmem.c')
0 files changed, 0 insertions, 0 deletions