diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-09-16 06:58:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-09-16 06:58:04 -0700 |
| commit | 68e777e44c275e8dbc36f5a187c366e982d6a129 (patch) | |
| tree | 0c6ab629d1ecc2924f95d7b81cbf7715db864ee3 | |
| parent | 0158137d816f60115aae2d3b4acdc67383a05c01 (diff) | |
| parent | c4fa368466cc1b60bb92f867741488930ddd6034 (diff) | |
Merge tag 'block-6.0-2022-09-16' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Two fixes for -rc6:
- Fix a mixup of sectors and bytes in the secure erase ioctl
(Mikulas)
- Fix for a bad return value for a non-blocking bio/blk queue enter
call (me)"
* tag 'block-6.0-2022-09-16' of git://git.kernel.dk/linux-block:
blk-lib: fix blkdev_issue_secure_erase
block: blk_queue_enter() / __bio_queue_enter() must return -EAGAIN for nowait
| -rw-r--r-- | block/blk-core.c | 4 | ||||
| -rw-r--r-- | block/blk-lib.c | 11 |
2 files changed, 10 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index a0d1104c5590..651057c4146b 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -295,7 +295,7 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags) while (!blk_try_enter_queue(q, pm)) { if (flags & BLK_MQ_REQ_NOWAIT) - return -EBUSY; + return -EAGAIN; /* * read pair of barrier in blk_freeze_queue_start(), we need to @@ -325,7 +325,7 @@ int __bio_queue_enter(struct request_queue *q, struct bio *bio) if (test_bit(GD_DEAD, &disk->state)) goto dead; bio_wouldblock_error(bio); - return -EBUSY; + return -EAGAIN; } /* diff --git a/block/blk-lib.c b/block/blk-lib.c index 67e6dbc1ae81..e59c3069e835 100644 --- a/block/blk-lib.c +++ b/block/blk-lib.c @@ -309,6 +309,11 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, struct blk_plug plug; int ret = 0; + /* make sure that "len << SECTOR_SHIFT" doesn't overflow */ + if (max_sectors > UINT_MAX >> SECTOR_SHIFT) + max_sectors = UINT_MAX >> SECTOR_SHIFT; + max_sectors &= ~bs_mask; + if (max_sectors == 0) return -EOPNOTSUPP; if ((sector | nr_sects) & bs_mask) @@ -322,10 +327,10 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, bio = blk_next_bio(bio, bdev, 0, REQ_OP_SECURE_ERASE, gfp); bio->bi_iter.bi_sector = sector; - bio->bi_iter.bi_size = len; + bio->bi_iter.bi_size = len << SECTOR_SHIFT; - sector += len << SECTOR_SHIFT; - nr_sects -= len << SECTOR_SHIFT; + sector += len; + nr_sects -= len; if (!nr_sects) { ret = submit_bio_wait(bio); bio_put(bio); |