+ nilfs2-add-support-for-fs_ioc_getuuid.patch added to mm-nonmm-unstable branch

+ nilfs2-add-support-for-fs_ioc_getuuid.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: nilfs2: add support for FS_IOC_GETUUID
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     nilfs2-add-support-for-fs_ioc_getuuid.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/nilfs2-add-support-for-fs_ioc_getuuid.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Subject: nilfs2: add support for FS_IOC_GETUUID
Date: Thu, 15 Aug 2024 16:44:05 +0900

Patch series "nilfs2: add support for some common ioctls".

This series adds support for common ioctls to nilfs2 for getting the
volume UUID and the relative path of an FS instance within the sysfs
namespace, and also implements ioctls for nilfs2 to get and set the volume
label.


This patch (of 2):

Expose the UUID of a file system instance using the super_set_uuid helper
and support the FS_IOC_GETUUID ioctl.

Link: https://lkml.kernel.org/r/20240815074408.5550-1-konishi.ryusuke@gmail.com
Link: https://lkml.kernel.org/r/20240815074408.5550-2-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/nilfs2/super.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/nilfs2/super.c~nilfs2-add-support-for-fs_ioc_getuuid
+++ a/fs/nilfs2/super.c
@@ -1063,6 +1063,9 @@ nilfs_fill_super(struct super_block *sb,
 	if (err)
 		goto failed_nilfs;
 
+	super_set_uuid(sb, nilfs->ns_sbp[0]->s_uuid,
+		       sizeof(nilfs->ns_sbp[0]->s_uuid));
+
 	cno = nilfs_last_cno(nilfs);
 	err = nilfs_attach_checkpoint(sb, cno, true, &fsroot);
 	if (err) {
_

Patches currently in -mm which might be from konishi.ryusuke@gmail.com are

nilfs2-protect-references-to-superblock-parameters-exposed-in-sysfs.patch
nilfs2-fix-missing-cleanup-on-rollforward-recovery-error.patch
nilfs2-fix-state-management-in-error-path-of-log-writing-function.patch
nilfs2-add-support-for-fs_ioc_getuuid.patch
nilfs2-add-support-for-fs_ioc_getfssysfspath.patch
nilfs2-add-support-for-fs_ioc_getfslabel.patch
nilfs2-add-support-for-fs_ioc_setfslabel.patch