From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Sascha Hauer <s.hauer@pengutronix.de>,
BAREBOX <barebox@lists.infradead.org>
Subject: Re: [PATCH v2 09/13] fs: include cdevname in struct stat
Date: Mon, 15 Dec 2025 12:25:40 +0100 [thread overview]
Message-ID: <09879850-52a9-43d7-b6d6-9064d57f5501@pengutronix.de> (raw)
In-Reply-To: <20251209-devfs-v2-9-62ae16698cff@pengutronix.de>
On 12/9/25 1:51 PM, Sascha Hauer wrote:
> In Linux struct stat contains the major/minor numbers of the underlying
> device, consequently we put the cdev name into struct stat.
>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
> fs/fs.c | 1 +
> include/linux/stat.h | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/fs/fs.c b/fs/fs.c
> index 9e2c95c6352cc63400f997bb8de53af44f4741cf..9022287dff2f4959f64eac76c544634b3978d238 100644
> --- a/fs/fs.c
> +++ b/fs/fs.c
> @@ -1117,6 +1117,7 @@ static void stat_inode(struct inode *inode, struct stat *s)
> s->st_mode = inode->i_mode;
> s->st_uid = inode->i_uid;
> s->st_gid = inode->i_gid;
> + s->st_cdevname = inode->cdevname;
> }
>
> int fstat(int fd, struct stat *s)
> diff --git a/include/linux/stat.h b/include/linux/stat.h
> index 6ee05b52873f47e5d17a4387829187512be29ea8..84b6484a1f2149d1f2d770f0f11bf0ae0ef63744 100644
> --- a/include/linux/stat.h
> +++ b/include/linux/stat.h
> @@ -55,6 +55,7 @@ struct stat {
> unsigned short st_mode;
> unsigned short st_uid;
> unsigned short st_gid;
> + const char *st_cdevname; /* barebox specific */
> loff_t st_size;
> };
>
>
--
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next prev parent reply other threads:[~2025-12-15 11:26 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-09 12:51 [PATCH v2 00/13] fs: Use device special nodes for devfs Sascha Hauer
2025-12-09 12:51 ` [PATCH v2 01/13] fs: devfs-core: add devfs_create_link_node() Sascha Hauer
2025-12-15 11:14 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 02/13] storage-by-alias: drop fake cdev Sascha Hauer
2025-12-15 11:15 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 03/13] fs: implement mknod Sascha Hauer
2025-12-15 11:19 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 04/13] commands: add mknod command Sascha Hauer
2025-12-15 11:21 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 05/13] fs: ramfs: add device file support Sascha Hauer
2025-12-15 11:22 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 06/13] cdev: add cdev_size() helper Sascha Hauer
2025-12-15 11:22 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 07/13] fs: fix st_size for device files Sascha Hauer
2025-12-15 11:24 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 08/13] fs: retire devfs as filesystem Sascha Hauer
2025-12-15 11:25 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 09/13] fs: include cdevname in struct stat Sascha Hauer
2025-12-15 11:25 ` Ahmad Fatoum [this message]
2025-12-09 12:51 ` [PATCH v2 10/13] fs: stat_print: get cdevname from stat Sascha Hauer
2025-12-15 11:26 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 11/13] common: cdev-alias: rename struct Sascha Hauer
2025-12-15 11:27 ` Ahmad Fatoum
2025-12-09 12:51 ` [PATCH v2 12/13] fs: replace cdev links with aliases Sascha Hauer
2025-12-15 11:31 ` Ahmad Fatoum
2025-12-15 12:17 ` Sascha Hauer
2025-12-09 12:51 ` [PATCH v2 13/13] ls: use ~0 for FILE_SIZE_STREAM Sascha Hauer
2025-12-15 11:32 ` Ahmad Fatoum
2025-12-15 12:16 ` [PATCH v2 00/13] fs: Use device special nodes for devfs Sascha Hauer
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