On 2020/07/21 19:54, Maxim Levitsky wrote: > This allows to remove nbd's own check for valid block size > > Signed-off-by: Maxim Levitsky <[email protected]> > --- > drivers/block/nbd.c | 12 ++---------- > 1 file changed, 2 insertions(+), 10 deletions(-) > > diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c > index ce7e9f223b20b..2cd9c4e824f8b 100644 > --- a/drivers/block/nbd.c > +++ b/drivers/block/nbd.c > @@ -1347,14 +1347,6 @@ static void nbd_clear_sock_ioctl(struct nbd_device > *nbd, > nbd_config_put(nbd); > } > > -static bool nbd_is_valid_blksize(unsigned long blksize) > -{ > - if (!blksize || !is_power_of_2(blksize) || blksize < 512 || > - blksize > PAGE_SIZE) > - return false; > - return true; > -} > - > static void nbd_set_cmd_timeout(struct nbd_device *nbd, u64 timeout) > { > nbd->tag_set.timeout = timeout * HZ; > @@ -1379,7 +1371,7 @@ static int __nbd_ioctl(struct block_device *bdev, > struct nbd_device *nbd, > case NBD_SET_BLKSIZE: > if (!arg) > arg = NBD_DEF_BLKSIZE; > - if (!nbd_is_valid_blksize(arg)) > + if (!blk_is_valid_logical_block_size(arg)) > return -EINVAL; > nbd_size_set(nbd, arg, > div_s64(config->bytesize, arg)); > @@ -1811,7 +1803,7 @@ static int nbd_genl_size_set(struct genl_info *info, > struct nbd_device *nbd) > bsize = nla_get_u64(info->attrs[NBD_ATTR_BLOCK_SIZE_BYTES]); > if (!bsize) > bsize = NBD_DEF_BLKSIZE; > - if (!nbd_is_valid_blksize(bsize)) { > + if (!blk_is_valid_logical_block_size(bsize)) { > printk(KERN_ERR "Invalid block size %llu\n", bsize); > return -EINVAL; > } >
Looks good to me. Reviewed-by: Damien Le Moal <[email protected]> -- Damien Le Moal Western Digital Research
