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| author | Jens Axboe | 2018-08-14 18:52:40 +0200 |
|---|---|---|
| committer | Jens Axboe | 2018-08-14 18:52:40 +0200 |
| commit | b089cfd95d32638335c551651a8e00fd2c4edb0b (patch) | |
| tree | 5e48ee9470ecab0bd4525fcb93ab97a9f6b583d0 /block/blk-core.c | |
| parent | bcache: add the missing comments for smp_mb()/smp_wmb() (diff) | |
| download | kernel-qcow2-linux-b089cfd95d32638335c551651a8e00fd2c4edb0b.tar.gz kernel-qcow2-linux-b089cfd95d32638335c551651a8e00fd2c4edb0b.tar.xz kernel-qcow2-linux-b089cfd95d32638335c551651a8e00fd2c4edb0b.zip | |
block: don't warn for flush on read-only device
Don't warn for a flush issued to a read-only device. It's not strictly
a writable command, as it doesn't change any on-media data by itself.
Reported-by: Stefan Agner <stefan@agner.ch>
Fixes: 721c7fc701c7 ("block: fail op_is_write() requests to read-only partitions")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 49af34bf2119..7aeef19704f2 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2162,7 +2162,9 @@ static inline bool should_fail_request(struct hd_struct *part, static inline bool bio_check_ro(struct bio *bio, struct hd_struct *part) { - if (part->policy && op_is_write(bio_op(bio))) { + const int op = bio_op(bio); + + if (part->policy && (op_is_write(op) && !op_is_flush(op))) { char b[BDEVNAME_SIZE]; printk(KERN_ERR |