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3eb2138d46
commit005308f7bdupstream. 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:c16bda3759("io_uring/poll: allow some retries for poll triggering spuriously") Cc: stable@vger.kernel.org Reported-by: Pengfei Xu <pengfei.xu@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1061 lines
29 KiB
1061 lines
29 KiB