lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 15 Oct 2021 08:57:59 -0700 From: Kees Cook <keescook@...omium.org> To: Christoph Hellwig <hch@....de> Cc: Jens Axboe <axboe@...nel.dk>, Coly Li <colyli@...e.de>, Mike Snitzer <snitzer@...hat.com>, Song Liu <song@...nel.org>, David Sterba <dsterba@...e.com>, Josef Bacik <josef@...icpanda.com>, Theodore Ts'o <tytso@....edu>, OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>, Dave Kleikamp <shaggy@...nel.org>, Ryusuke Konishi <konishi.ryusuke@...il.com>, Anton Altaparmakov <anton@...era.com>, Konstantin Komarov <almaz.alexandrovich@...agon-software.com>, Phillip Lougher <phillip@...ashfs.org.uk>, Jan Kara <jack@...e.com>, linux-block@...r.kernel.org, dm-devel@...hat.com, drbd-dev@...ts.linbit.com, linux-bcache@...r.kernel.org, linux-raid@...r.kernel.org, linux-nvme@...ts.infradead.org, linux-scsi@...r.kernel.org, target-devel@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org, jfs-discussion@...ts.sourceforge.net, linux-nfs@...r.kernel.org, linux-nilfs@...r.kernel.org, linux-ntfs-dev@...ts.sourceforge.net, ntfs3@...ts.linux.dev, reiserfs-devel@...r.kernel.org, Chaitanya Kulkarni <kch@...dia.com> Subject: Re: [PATCH 08/30] target/iblock: use bdev_nr_bytes instead of open coding it On Fri, Oct 15, 2021 at 03:26:21PM +0200, Christoph Hellwig wrote: > Use the proper helper to read the block device size. > > Signed-off-by: Christoph Hellwig <hch@....de> > Reviewed-by: Chaitanya Kulkarni <kch@...dia.com> Is this basically an open-coded non-sb version of sb_bdev_nr_blocks()? Reviewed-by: Kees Cook <keescook@...omium.org> > --- > drivers/target/target_core_iblock.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c > index 31df20abe141f..b1ef041cacd81 100644 > --- a/drivers/target/target_core_iblock.c > +++ b/drivers/target/target_core_iblock.c > @@ -232,9 +232,9 @@ static unsigned long long iblock_emulate_read_cap_with_block_size( > struct block_device *bd, > struct request_queue *q) > { > - unsigned long long blocks_long = (div_u64(i_size_read(bd->bd_inode), > - bdev_logical_block_size(bd)) - 1); > u32 block_size = bdev_logical_block_size(bd); > + unsigned long long blocks_long = > + div_u64(bdev_nr_bytes(bd), block_size) - 1; > > if (block_size == dev->dev_attrib.block_size) > return blocks_long; > -- > 2.30.2 > -- Kees Cook
Powered by blists - more mailing lists