diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-29 22:05:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-09 22:01:55 +0100 |
| commit | e82ecb230924314b848b68f5dade1ccf38bea838 (patch) | |
| tree | 05cce2b6ff5d692c8d60e5f579da48d84136c13f /lib/mpi/mpiutil.c | |
| parent | 1bf0b23c07f1e23f23c05d4f8223ebdebd13c3f1 (diff) | |
dma-buf/sw-sync: Fix locking around sync_timeline lists
commit d3862e44daa7a0c94d2f6193502a8c49379acfce upstream.
The sync_pt were not adding themselves atomically to the timeline lists,
corruption imminent. Only a single list is required to track the
unsignaled sync_pt, so reduce it and rename the lock more appropriately
along with using idiomatic names to distinguish a list from links along
it.
v2: Prevent spinlock recursion on free during create (next patch) and
fixup crossref in kerneldoc
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629210532.5617-1-chris@chris-wilson.co.uk
[s/dma_fence/fence/g - gregkh]
Cc: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions