* Re: [PATCH] hfsplus: Avoid truncating the logical block size
[not found] <1600650462-41862-1-git-send-email-wang.yi59@zte.com.cn>
@ 2020-09-21 16:21 ` Viacheslav Dubeyko
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From: Viacheslav Dubeyko @ 2020-09-21 16:21 UTC (permalink / raw)
To: Yi Wang
Cc: arnd, ernesto.mnd.fernandez, linux-fsdevel, linux-kernel,
xue.zhihong, wang.liang82, Liao Pingfang
> On Sep 20, 2020, at 6:07 PM, Yi Wang <wang.yi59@zte.com.cn> wrote:
>
> From: Liao Pingfang <liao.pingfang@zte.com.cn>
>
> Return type of bdev_logical_blfsock_size() got changed from unsigned
> short to unsigned int, but it was forgotten to update hfsplus_min_io_size()
> to use the new type. Fix it by calling max_t with new type and returning
> new type as well.
>
> Fixes: ad6bf88a6c19 ("block: fix an integer overflow in logical block size")
> Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
> ---
> fs/hfsplus/hfsplus_fs.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
> index 3b03fff..3ed36d8 100644
> --- a/fs/hfsplus/hfsplus_fs.h
> +++ b/fs/hfsplus/hfsplus_fs.h
> @@ -302,9 +302,9 @@ struct hfsplus_readdir_data {
> /*
> * Find minimum acceptible I/O size for an hfsplus sb.
> */
> -static inline unsigned short hfsplus_min_io_size(struct super_block *sb)
> +static inline unsigned int hfsplus_min_io_size(struct super_block *sb)
> {
> - return max_t(unsigned short, bdev_logical_block_size(sb->s_bdev),
> + return max_t(unsigned int, bdev_logical_block_size(sb->s_bdev),
> HFSPLUS_SECTOR_SIZE);
> }
>
Looks good. Thanks.
Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com>
> --
> 1.8.3.1
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