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From: Chao Yu <chao@kernel.org>
To: Bart Van Assche <bvanassche@acm.org>, Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>,
	linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 2/3] Fix f2fs_report_zone()
Date: Sun, 19 Jun 2022 07:41:56 +0800	[thread overview]
Message-ID: <01f36870-1978-b4d6-559e-edce78d06e00@kernel.org> (raw)
In-Reply-To: <20220614231724.776264-3-bvanassche@acm.org>

On 2022/6/15 7:17, Bart Van Assche wrote:
> The definition of struct blk_zone_report is as follows:
> 
> 	struct blk_zone_report {
> 		__u64		sector;
> 		__u32		nr_zones;
> 		__u32		flags;
> 		struct blk_zone zones[0];
> 	};
> 
> Since f2fs_report_zone() allocates the above data structure with
> malloc() and since f2fs_report_zone() only initializes the sector and
> nr_zones members, the flags member is not initialized. Modify
> f2fs_report_zone() such that 0 is passed as flags to the
> BLKREPORTZONE ioctl instead of a random value. This has been
> discovered by reading the source code.
> 
> Cc: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
> Fixes: 6d7c7b785feb ("libf2fs_zoned: Introduce f2fs_report_zone() helper function")
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,


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  reply	other threads:[~2022-06-18 23:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-14 23:17 [f2fs-dev] [PATCH 0/3] Three f2fs patches Bart Van Assche
2022-06-14 23:17 ` [f2fs-dev] [PATCH 1/3] Fix the struct f2fs_dentry_block size check Bart Van Assche
2022-06-18 23:41   ` Chao Yu
     [not found]     ` <CAMn1gO4=iy7tzvvcx6n5DLBM+V4f9Kj=_U1abRf4Cm8XAL+gCA@mail.gmail.com>
2022-06-19 22:12       ` Jaegeuk Kim
2022-06-14 23:17 ` [f2fs-dev] [PATCH 2/3] Fix f2fs_report_zone() Bart Van Assche
2022-06-18 23:41   ` Chao Yu [this message]
2022-06-14 23:17 ` [f2fs-dev] [PATCH 3/3] Improve compile-time type checking for f2fs_report_zone() Bart Van Assche
2022-06-18 23:42   ` Chao Yu
2022-06-15 16:58 ` [f2fs-dev] [PATCH 0/3] Three f2fs patches Jaegeuk Kim

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