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| author | Michael S. Tsirkin <mst@redhat.com> | 2018-01-26 01:36:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-29 12:02:53 -0500 |
| commit | a259df36d1fbf25f0e4f649fdb84e4527e5640ed (patch) | |
| tree | a5a2c6d057c491dc2235cd443e1bf7a6823d74b2 /Documentation/RCU/lockdep-splat.txt | |
| parent | 8619d384eb5e9256a9d4ebe96c1832ac9b9049d6 (diff) | |
| download | linux-a259df36d1fbf25f0e4f649fdb84e4527e5640ed.tar.gz | |
ptr_ring: READ/WRITE_ONCE for __ptr_ring_empty
Lockless __ptr_ring_empty requires that consumer head is read and
written at once, atomically. Annotate accordingly to make sure compiler
does it correctly. Switch locked callers to __ptr_ring_peek which does
not support the lockless operation.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/RCU/lockdep-splat.txt')
0 files changed, 0 insertions, 0 deletions