linux/drivers/dma-buf
Dmitry Osipenko 42850c9aad udmabuf: Don't assert held reservation lock for dma-buf mmapping
Don't assert held dma-buf reservation lock on memory mapping of exported
buffer.

We're going to change dma-buf mmap() locking policy such that exporters
will have to handle the lock. The previous locking policy caused deadlock
problem for DRM drivers in a case of self-imported dma-bufs once these
drivers are moved to use reservation lock universally. The problem is
solved by moving the lock down to exporters. This patch prepares udmabuf
for the locking policy update.

Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-4-dmitry.osipenko@collabora.com
2023-06-21 20:22:20 +03:00
..
heaps dma-buf/heaps: Don't assert held reservation lock for dma-buf mmapping 2023-06-21 20:22:20 +03:00
dma-buf-sysfs-stats.c dma-buf: make kobj_type structure constant 2023-02-17 10:59:14 +01:00
dma-buf-sysfs-stats.h dma-buf: fix dma_buf_export init order v2 2022-12-13 08:31:45 +01:00
dma-buf.c dma-buf: Include missing parentheses to documentation 2023-03-03 14:35:09 -03:00
dma-fence-array.c dma-buf/fence-array: Add fence deadline support 2023-03-25 10:55:07 -07:00
dma-fence-chain.c dma-buf/fence-chain: Add fence deadline support 2023-03-28 13:38:52 -07:00
dma-fence-unwrap.c dma-buf: revert "return only unsignaled fences in dma_fence_unwrap_for_each v3" 2022-07-14 14:41:30 +02:00
dma-fence.c dma-buf/dma-fence: Add deadline awareness 2023-03-25 10:55:07 -07:00
dma-heap.c driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
dma-resv.c dma-buf/dma-resv.c: fix a typo 2023-04-17 08:24:31 +02:00
Kconfig dma-buf: deprecate DMABUF_SYSFS_STATS 2022-06-23 10:51:43 +02:00
Makefile dma-buf: cleanup dma_fence_unwrap implementation 2022-05-30 14:16:32 +02:00
selftest.c dma-buf: Introduce selftesting framework 2019-08-19 18:01:34 +01:00
selftest.h dma-buf: Introduce selftesting framework 2019-08-19 18:01:34 +01:00
selftests.h dma-buf: add dma_fence_unwrap v2 2022-03-25 14:18:28 +01:00
st-dma-fence-chain.c treewide: use get_random_u32_inclusive() when possible 2022-11-18 02:18:02 +01:00
st-dma-fence-unwrap.c dma-buf: Enable signaling on fence for selftests 2022-09-16 15:53:25 +02:00
st-dma-fence.c dma-buf: Enable signaling on fence for selftests 2022-09-16 15:53:25 +02:00
st-dma-resv.c dma-buf: Enable signaling on fence for selftests 2022-09-16 15:53:25 +02:00
sw_sync.c dma-buf/sw_sync: Replace all non-returning strlcpy with strscpy 2023-05-24 16:32:25 +05:30
sync_debug.c
sync_debug.h
sync_file.c dma-buf/sync_file: use strscpy to replace strlcpy 2022-08-10 13:50:49 +02:00
sync_trace.h
udmabuf.c udmabuf: Don't assert held reservation lock for dma-buf mmapping 2023-06-21 20:22:20 +03:00