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Subject[PATCH 13/13] resctrl: don't ignore options
The options "sync", "async", "dirsync", "lazytime", "nolazytime", "mand"
and "nomand" make no sense for the resctrl filesystem. If these options
are supplied to fsconfig(FSCONFIG_SET_FLAG), then return -EINVAL instead of
silently ignoring the option.

Any implementation, such as mount(8) that needs to parse this option
without failing should simply ignore the return value from fsconfig().

Signed-off-by: Miklos Szeredi <>
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 83d3c358f95e..16b110d31457 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -2053,7 +2053,7 @@ static int rdt_parse_param(struct fs_context *fc, struct fs_parameter *param)
struct fs_parse_result result;
int ret, opt;

- ret = vfs_parse_sb_flag(fc, param);
+ ret = vfs_parse_ro_rw(fc, param);
if (ret != -ENOPARAM)
return ret;

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