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| author | Jens Axboe <[email protected]> | 2023-03-28 01:56:18 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2023-03-28 13:09:01 +0000 |
| commit | 005308f7bdacf5685ed1a431244a183dbbb9e0e8 (patch) | |
| tree | da80bb93629ab5e4c2063313002e20f633fa2d99 /tools/perf/builtin-annotate.c | |
| parent | io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get() (diff) | |
| download | kernel-005308f7bdacf5685ed1a431244a183dbbb9e0e8.tar.gz kernel-005308f7bdacf5685ed1a431244a183dbbb9e0e8.zip | |
io_uring/poll: clear single/double poll flags on poll arming
Unless we have at least one entry queued, then don't call into
io_poll_remove_entries(). Normally this isn't possible, but if we
retry poll then we can have ->nr_entries cleared again as we're
setting it up. If this happens for a poll retry, then we'll still have
at least REQ_F_SINGLE_POLL set. io_poll_remove_entries() then thinks
it has entries to remove.
Clear REQ_F_SINGLE_POLL and REQ_F_DOUBLE_POLL unconditionally when
arming a poll request.
Fixes: c16bda37594f ("io_uring/poll: allow some retries for poll triggering spuriously")
Cc: [email protected]
Reported-by: Pengfei Xu <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/builtin-annotate.c')
0 files changed, 0 insertions, 0 deletions