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c921ff373b
Abstract the complexity of iterating over all the fences in a dma_resv object. The new loop handles the whole RCU and retry dance and returns only fences where we can be sure we grabbed the right one. v2: fix accessing the shared fences while they might be freed, improve kerneldoc, rename _cursor to _iter, add dma_resv_iter_is_exclusive, add dma_resv_iter_begin/end v3: restructor the code, move rcu_read_lock()/unlock() into the iterator, add dma_resv_iter_is_restarted() v4: fix NULL deref when no explicit fence exists, drop superflous rcu_read_lock()/unlock() calls. v5: fix typos in the documentation v6: fix coding error when excl fence is NULL v7: one more logic fix v8: fix index check in dma_resv_iter_is_exclusive() Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> (v7) Link: https://patchwork.freedesktop.org/patch/msgid/20211005113742.1101-2-christian.koenig@amd.com |
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.. | ||
heaps | ||
dma-buf-sysfs-stats.c | ||
dma-buf-sysfs-stats.h | ||
dma-buf.c | ||
dma-fence-array.c | ||
dma-fence-chain.c | ||
dma-fence.c | ||
dma-heap.c | ||
dma-resv.c | ||
Kconfig | ||
Makefile | ||
selftest.c | ||
selftest.h | ||
selftests.h | ||
st-dma-fence-chain.c | ||
st-dma-fence.c | ||
sw_sync.c | ||
sync_debug.c | ||
sync_debug.h | ||
sync_file.c | ||
sync_trace.h | ||
udmabuf.c |