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List: linux-bcache
Subject: Re: [PATCH] bcache: remove return value from bch_cached_dev_error
From: Coly Li <colyli () suse ! de>
Date: 2023-02-27 13:52:20
Message-ID: Y/y1lJ6wXt3Isw6I () enigma ! lan
[Download RAW message or body]
On Mon, Feb 27, 2023 at 08:44:33PM +0800, Zhang Zhen wrote:
> The only caller of bch_cached_dev_error does not check the return
> value. We can make it a void function.
>
> Signed-off-by: Zhen Zhang <zhangzhen15@kuaishou.com>
NACK. I prefer to have the return values for different conditions,
even they are not used for now.
Coly Li
> ---
> drivers/md/bcache/bcache.h | 2 +-
> drivers/md/bcache/super.c | 5 ++---
> 2 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
> index aebb7ef10e63..ff175a2fb2f0 100644
> --- a/drivers/md/bcache/bcache.h
> +++ b/drivers/md/bcache/bcache.h
> @@ -990,7 +990,7 @@ int bch_bucket_alloc_set(struct cache_set *c, unsigned
> int reserve,
> bool bch_alloc_sectors(struct cache_set *c, struct bkey *k,
> unsigned int sectors, unsigned int write_point,
> unsigned int write_prio, bool wait);
> -bool bch_cached_dev_error(struct cached_dev *dc);
> +void bch_cached_dev_error(struct cached_dev *dc);
> __printf(2, 3)
> bool bch_cache_set_error(struct cache_set *c, const char *fmt, ...);
> diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
> index ba3909bb6bea..9923bb5c4fbe 100644
> --- a/drivers/md/bcache/super.c
> +++ b/drivers/md/bcache/super.c
> @@ -1607,10 +1607,10 @@ int bch_flash_dev_create(struct cache_set *c,
> uint64_t size)
> return flash_dev_run(c, u);
> }
> -bool bch_cached_dev_error(struct cached_dev *dc)
> +void bch_cached_dev_error(struct cached_dev *dc)
> {
> if (!dc || test_bit(BCACHE_DEV_CLOSING, &dc->disk.flags))
> - return false;
> + return;
> dc->io_disable = true;
> /* make others know io_disable is true earlier */
> @@ -1620,7 +1620,6 @@ bool bch_cached_dev_error(struct cached_dev *dc)
> dc->disk.disk->disk_name, dc->bdev);
> bcache_device_stop(&dc->disk);
> - return true;
> }
> /* Cache set */
> --
> 2.27.0
>
--
Coly Li
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