Commit-ID: 76ae054c69a745ded388fc4ae70422d74c5bc77d Gitweb: http://git.kernel.org/tip/76ae054c69a745ded388fc4ae70422d74c5bc77d Author: Shaohua Li <[email protected]> AuthorDate: Fri, 2 Dec 2016 14:21:06 -0800 Committer: Thomas Gleixner <[email protected]> CommitDate: Fri, 9 Dec 2016 14:12:18 +0100
x86/intel_rdt: Implement show_options() for resctrlfs Implement show_options() callback for intel resource control filesystem to expose the active mount options in /proc/ Signed-off-by: Shaohua Li <[email protected]> Cc: Fenghua Yu <[email protected]> Link: http://lkml.kernel.org/r/7dce7c1886ac9289442d254ea18322c92bd968da.1480717072.git.s...@fb.com Signed-off-by: Thomas Gleixner <[email protected]> --- arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c index 1afd3f3..8af04af 100644 --- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c +++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c @@ -1036,9 +1036,17 @@ out: return ret; } +static int rdtgroup_show_options(struct seq_file *seq, struct kernfs_root *kf) +{ + if (rdt_resources_all[RDT_RESOURCE_L3DATA].enabled) + seq_puts(seq, ",cdp"); + return 0; +} + static struct kernfs_syscall_ops rdtgroup_kf_syscall_ops = { - .mkdir = rdtgroup_mkdir, - .rmdir = rdtgroup_rmdir, + .mkdir = rdtgroup_mkdir, + .rmdir = rdtgroup_rmdir, + .show_options = rdtgroup_show_options, }; static int __init rdtgroup_setup_root(void)
