Commit 3a987b88 authored by Marc Aurèle La France's avatar Marc Aurèle La France Committed by Christian Brauner
Browse files

debugfs show actual source in /proc/mounts 



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: default avatarMarc Aurèle La France <tsi@tuyoix.net>
Link: https://lore.kernel.org/r/e439fae2-01da-234b-75b9-2a7951671e27@tuyoix.net


Fixes: a20971c1 ("vfs: Convert debugfs to use the new mount API")
Cc: stable@vger.kernel.org # 6.10.x: 49abee59: debugfs: Convert to new uid/gid option parsing helpers
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 1c48d441

fs/debugfs/inode.c

+8 −0
Original line number Diff line number Diff line
@@ -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_context *fc, struct fs_parameter *param 
	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