From: Marc Aurèle La France <tsi@xxxxxxxxxx> commit 3a987b88a42593875f6345188ca33731c7df728c upstream. After its conversion to the new mount API, debugfs displays "none" in /proc/mounts instead of the actual source. Fix this by recognising its "source" mount option. Signed-off-by: Marc Aurèle La France <tsi@xxxxxxxxxx> Link: https://lore.kernel.org/r/e439fae2-01da-234b-75b9-2a7951671e27@xxxxxxxxxx Fixes: a20971c18752 ("vfs: Convert debugfs to use the new mount API") Cc: stable@xxxxxxxxxxxxxxx # 6.10.x: 49abee5991e1: debugfs: Convert to new uid/gid option parsing helpers Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/debugfs/inode.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -89,12 +89,14 @@ enum { Opt_uid, Opt_gid, Opt_mode, + Opt_source, }; static const struct fs_parameter_spec debugfs_param_specs[] = { fsparam_gid ("gid", Opt_gid), fsparam_u32oct ("mode", Opt_mode), fsparam_uid ("uid", Opt_uid), + fsparam_string ("source", Opt_source), {} }; @@ -126,6 +128,12 @@ static int debugfs_parse_param(struct fs case Opt_mode: opts->mode = result.uint_32 & S_IALLUGO; break; + case Opt_source: + if (fc->source) + return invalfc(fc, "Multiple sources specified"); + fc->source = param->string; + param->string = NULL; + break; /* * We might like to report bad mount options here; * but traditionally debugfs has ignored all mount options Patches currently in stable-queue which might be from tsi@xxxxxxxxxx are queue-6.11/debugfs-show-actual-source-in-proc-mounts.patch
