From: "Darrick J. Wong" <djwong@kernel.org>
To: Chandan Babu R <chandan.babu@oracle.com>
Cc: cem@kernel.org, linux-xfs@vger.kernel.org
Subject: Re: [PATCH 21/24] mdrestore: Extract target device size verification into a function
Date: Tue, 23 May 2023 11:07:01 -0700 [thread overview]
Message-ID: <20230523180701.GB11620@frogsfrogsfrogs> (raw)
In-Reply-To: <20230523090050.373545-22-chandan.babu@oracle.com>
"No functional changes" ?
With a better commit message,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
--D
On Tue, May 23, 2023 at 02:30:47PM +0530, Chandan Babu R wrote:
> Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
> ---
> mdrestore/xfs_mdrestore.c | 43 +++++++++++++++++++++++----------------
> 1 file changed, 26 insertions(+), 17 deletions(-)
>
> diff --git a/mdrestore/xfs_mdrestore.c b/mdrestore/xfs_mdrestore.c
> index 52081a6ca..615ecdc77 100644
> --- a/mdrestore/xfs_mdrestore.c
> +++ b/mdrestore/xfs_mdrestore.c
> @@ -86,6 +86,30 @@ open_device(
> return fd;
> }
>
> +static void
> +verify_device_size(
> + int dev_fd,
> + bool is_file,
> + xfs_rfsblock_t nr_blocks,
> + uint32_t blocksize)
> +{
> + if (is_file) {
> + /* ensure regular files are correctly sized */
> + if (ftruncate(dev_fd, nr_blocks * blocksize))
> + fatal("cannot set filesystem image size: %s\n",
> + strerror(errno));
> + } else {
> + /* ensure device is sufficiently large enough */
> + char lb[XFS_MAX_SECTORSIZE] = { 0 };
> + off64_t off;
> +
> + off = nr_blocks * blocksize - sizeof(lb);
> + if (pwrite(dev_fd, lb, sizeof(lb), off) < 0)
> + fatal("failed to write last block, is target too "
> + "small? (error: %s)\n", strerror(errno));
> + }
> +}
> +
> static int
> read_header_v1(
> void *header,
> @@ -179,23 +203,8 @@ restore_v1(
>
> ((struct xfs_dsb*)block_buffer)->sb_inprogress = 1;
>
> - if (is_target_file) {
> - /* ensure regular files are correctly sized */
> -
> - if (ftruncate(data_fd, sb.sb_dblocks * sb.sb_blocksize))
> - fatal("cannot set filesystem image size: %s\n",
> - strerror(errno));
> - } else {
> - /* ensure device is sufficiently large enough */
> -
> - char lb[XFS_MAX_SECTORSIZE] = { 0 };
> - off64_t off;
> -
> - off = sb.sb_dblocks * sb.sb_blocksize - sizeof(lb);
> - if (pwrite(data_fd, lb, sizeof(lb), off) < 0)
> - fatal("failed to write last block, is target too "
> - "small? (error: %s)\n", strerror(errno));
> - }
> + verify_device_size(data_fd, is_target_file, sb.sb_dblocks,
> + sb.sb_blocksize);
>
> bytes_read = 0;
>
> --
> 2.39.1
>
next prev parent reply other threads:[~2023-05-23 18:07 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-23 9:00 [PATCH 00/24] Metadump v2 Chandan Babu R
2023-05-23 9:00 ` [PATCH 01/24] metadump: Use boolean values true/false instead of 1/0 Chandan Babu R
2023-05-23 16:31 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 02/24] mdrestore: Fix logic used to check if target device is large enough Chandan Babu R
2023-05-23 16:32 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 03/24] metadump: Define and use struct metadump Chandan Babu R
2023-05-23 16:35 ` Darrick J. Wong
2023-05-24 4:50 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 04/24] metadump: Add initialization and release functions Chandan Babu R
2023-05-23 16:36 ` Darrick J. Wong
2023-05-24 5:03 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 05/24] set_cur: Add support to read from external log device Chandan Babu R
2023-05-23 16:48 ` Darrick J. Wong
2023-05-25 8:27 ` Chandan Babu R
2023-06-05 9:19 ` Chandan Babu R
2023-06-05 19:22 ` Darrick J. Wong
2023-06-06 4:47 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 06/24] metadump: Dump external log device contents Chandan Babu R
2023-05-23 17:02 ` Darrick J. Wong
2023-05-26 6:54 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 07/24] metadump: Postpone invocation of init_metadump() Chandan Babu R
2023-05-23 17:13 ` Darrick J. Wong
2023-05-25 8:45 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 08/24] metadump: Introduce struct metadump_ops Chandan Babu R
2023-05-23 17:15 ` Darrick J. Wong
2023-05-25 8:48 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 09/24] metadump: Introduce metadump v1 operations Chandan Babu R
2023-05-23 17:25 ` Darrick J. Wong
2023-05-25 14:19 ` Chandan Babu R
2023-06-02 14:34 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 10/24] metadump: Rename XFS_MD_MAGIC to XFS_MD_MAGIC_V1 Chandan Babu R
2023-05-23 17:27 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 11/24] metadump: Define metadump v2 ondisk format structures and macros Chandan Babu R
2023-05-23 17:34 ` Darrick J. Wong
2023-05-25 9:26 ` Chandan Babu R
2023-06-02 14:46 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 12/24] metadump: Define metadump ops for v2 format Chandan Babu R
2023-05-23 17:37 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 13/24] metadump: Add support for passing version option Chandan Babu R
2023-05-23 17:41 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 14/24] xfs_metadump.sh: " Chandan Babu R
2023-05-23 17:39 ` Darrick J. Wong
2023-05-25 9:31 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 15/24] xfs_metadump.8: Add description for the newly introduced -v option Chandan Babu R
2023-05-23 17:40 ` Darrick J. Wong
2023-05-25 10:04 ` Chandan Babu R
2023-06-02 14:58 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 16/24] mdrestore: Define and use struct mdrestore Chandan Babu R
2023-05-23 17:42 ` Darrick J. Wong
2023-05-26 8:38 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 17/24] mdrestore: Add open_device(), read_header() and show_info() functions Chandan Babu R
2023-05-23 17:44 ` Darrick J. Wong
2023-05-25 10:11 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 18/24] mdrestore: Introduce struct mdrestore_ops Chandan Babu R
2023-05-23 17:44 ` Darrick J. Wong
2023-05-25 10:34 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 19/24] mdrestore: Introduce mdrestore v1 operations Chandan Babu R
2023-05-23 17:48 ` Darrick J. Wong
2023-05-25 10:39 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 20/24] mdrestore: Detect metadump version from metadump image Chandan Babu R
2023-05-23 18:11 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 21/24] mdrestore: Extract target device size verification into a function Chandan Babu R
2023-05-23 18:07 ` Darrick J. Wong [this message]
2023-05-25 12:02 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 22/24] mdrestore: Define mdrestore ops for v2 format Chandan Babu R
2023-05-23 18:06 ` Darrick J. Wong
2023-05-25 12:10 ` Chandan Babu R
2023-06-02 15:01 ` Darrick J. Wong
2023-05-23 9:00 ` [PATCH 23/24] mdrestore: Add support for passing log device as an argument Chandan Babu R
2023-05-23 18:09 ` Darrick J. Wong
2023-05-25 13:43 ` Chandan Babu R
2023-06-02 15:02 ` Darrick J. Wong
2023-06-05 6:19 ` Chandan Babu R
2023-05-23 9:00 ` [PATCH 24/24] xfs_mdrestore.8: Add description for the newly introduced -l option Chandan Babu R
2023-05-23 18:10 ` Darrick J. Wong
2023-05-25 13:45 ` Chandan Babu R
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