Messages in this thread | | | Subject | Re: [PATCH 3/3] ext4: Add support for FS_IOC_GETFSSYSFSPATH | From | "Kiselev, Oleg" <> | Date | Mon, 18 Mar 2024 21:51:04 +0000 |
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On 3/15/24, 09:51, "Kent Overstreet" <kent.overstreet@linux.dev <mailto:kent.overstreet@linux.dev>> wrote: > On Fri, Mar 15, 2024 at 12:45:50PM -0400, Theodore Ts'o wrote: > > On Thu, Mar 14, 2024 at 11:53:02PM -0400, Kent Overstreet wrote: > > > the new sysfs path ioctl lets us get the /sys/fs/ path for a given > > > filesystem in a fs agnostic way, potentially nudging us towards > > > standarizing some of our reporting. > > > > > > --- a/fs/ext4/super.c > > > +++ b/fs/ext4/super.c > > > @@ -5346,6 +5346,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb) > > > sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; > > > #endif > > > super_set_uuid(sb, es->s_uuid, sizeof(es->s_uuid)); > > > + super_set_sysfs_name_bdev(sb); > > > > Should we perhaps be hoisting this call up to the VFS layer, so that > > all file systems would benefit? > > > I did as much hoisting as I could. For some filesystems (single device > filesystems) the sysfs name is the block device, for the multi device > filesystems I've looked at it's the UUID.
Why not use the fs UUID for all cases, single device and multi device? -- Oleg Kiselev
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