From 599b4840b0ea453c7d11e1798dcc8f494dcfd58a Mon Sep 17 00:00:00 2001 From: Zev Weiss Date: Sun, 26 Jun 2016 16:13:23 -0500 Subject: [PATCH] sched/core: Fix sched_getaffinity() return value kerneldoc comment Previous version was probably written referencing the man page for glibc's wrapper, but the wrapper's behavior differs from that of the syscall itself in this case. Signed-off-by: Zev Weiss Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/1466975603-25408-1-git-send-email-zev@bewilderbeest.net Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 4ede4fc65653..28da50a5bc76 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4759,7 +4759,8 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask) * @len: length in bytes of the bitmask pointed to by user_mask_ptr * @user_mask_ptr: user-space pointer to hold the current cpu mask * - * Return: 0 on success. An error code otherwise. + * Return: size of CPU mask copied to user_mask_ptr on success. An + * error code otherwise. */ SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len, unsigned long __user *, user_mask_ptr) -- GitLab