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| author | Christoph Hellwig <hch@lst.de> | 2018-06-14 13:58:45 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-06-14 08:39:46 -0600 |
| commit | da661267398869a553b7f67d739d360aaa1361b6 (patch) | |
| tree | 375b099f3b56b2403b7e2802dd13afe42f2c5a11 /include/linux/blkdev.h | |
| parent | a347c7ad8edf4c5685154f3fdc3c12fc1db800ba (diff) | |
| download | blackbird-op-linux-da661267398869a553b7f67d739d360aaa1361b6.tar.gz blackbird-op-linux-da661267398869a553b7f67d739d360aaa1361b6.zip | |
blk-mq: don't time out requests again that are in the timeout handler
We can currently call the timeout handler again on a request that has
already been handed over to the timeout handler. Prevent that with a new
flag.
Fixes: 12f5b931 ("blk-mq: Remove generation seqeunce")
Reported-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Tested-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index bca3a92eb55f..fa6f11751430 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -127,6 +127,8 @@ typedef __u32 __bitwise req_flags_t; #define RQF_ZONE_WRITE_LOCKED ((__force req_flags_t)(1 << 19)) /* already slept for hybrid poll */ #define RQF_MQ_POLL_SLEPT ((__force req_flags_t)(1 << 20)) +/* ->timeout has been called, don't expire again */ +#define RQF_TIMED_OUT ((__force req_flags_t)(1 << 21)) /* flags that prevent us from merging requests: */ #define RQF_NOMERGE_FLAGS \ |
