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vfs-7.3-rc1.mount

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Please consider pulling these changes from the signed vfs-7.3-rc1.mount tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.3-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull mount updates from Christian Brauner:

 - Make the legacy mount API notify pollers of propagation changes.

   Changing propagation via change_mnt_propagation() or with
   MOVE_MOUNT_SET_GROUP update the propagation relationship of the
   target mount. But unlike mount_setattr() neither path touched the
   affected mount namespace. So pollers of /proc/<pid>/mountinfo were
   never woken.

 - Also remove a redundant panic() in mnt_init()

* tag 'vfs-7.3-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  mount: remove redundant panic() in mnt_init()
  fs/namespace: notify pollers of legacy propagation changes
This commit is contained in:
Linus Torvalds 2026-08-17 13:26:40 -07:00
commit c3d6d6dde3
1 changed files with 7 additions and 3 deletions
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10
fs/namespace.c
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@ -2908,6 +2908,9 @@ static int do_change_type(const struct path *path, int ms_flags)
for (m = mnt; m; m = (recurse ? next_mnt(m, mnt) : NULL))
change_mnt_propagation(m, type);
guard(mount_locked_reader)();
touch_mnt_namespace(mnt->mnt_ns);
return 0;
}
@ -3481,6 +3484,10 @@ static int do_set_group(const struct path *from_path, const struct path *to_path
list_add(&to->mnt_share, &from->mnt_share);
set_mnt_shared(to);
}
guard(mount_locked_reader)();
touch_mnt_namespace(to->mnt_ns);
return 0;
}
@ -6263,9 +6270,6 @@ void __init mnt_init(void)
HASH_ZERO,
&mp_hash_shift, &mp_hash_mask, 0, 0);
if (!mount_hashtable || !mountpoint_hashtable)
panic("Failed to allocate mount hash table\n");
kernfs_init();
err = sysfs_init();