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| author | Jens Axboe <axboe@kernel.dk> | 2020-08-28 07:52:02 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-08-28 07:52:02 -0600 |
| commit | a433d7217feab712ff69ef5cc2a86f95ed1aca40 (patch) | |
| tree | a89dd520a4a67f44838f946d7419228da345a44d | |
| parent | 79e5dc59e2974a48764269fa9ff544ae8ffe3338 (diff) | |
| parent | 6af10a33c501b0b5878476501143c2cfbbfd63a2 (diff) | |
| download | linux-a433d7217feab712ff69ef5cc2a86f95ed1aca40.tar.bz2 | |
Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.9
Pull MD fix from Song.
* 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
md/raid5: make sure stripe_size as power of two
| -rw-r--r-- | drivers/md/raid5.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index ef0fd4830803..a095c7a4cd7c 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -6514,9 +6514,12 @@ raid5_store_stripe_size(struct mddev *mddev, const char *page, size_t len) /* * The value should not be bigger than PAGE_SIZE. It requires to - * be multiple of DEFAULT_STRIPE_SIZE. + * be multiple of DEFAULT_STRIPE_SIZE and the value should be power + * of two. */ - if (new % DEFAULT_STRIPE_SIZE != 0 || new > PAGE_SIZE || new == 0) + if (new % DEFAULT_STRIPE_SIZE != 0 || + new > PAGE_SIZE || new == 0 || + new != roundup_pow_of_two(new)) return -EINVAL; err = mddev_lock(mddev); |