summaryrefslogtreecommitdiffstats
path: root/target/linux/generic/patches-4.1/130-MIPS-kernel-fix-sched_getaffinity-with-MT-FPAFF-enab.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic/patches-4.1/130-MIPS-kernel-fix-sched_getaffinity-with-MT-FPAFF-enab.patch')
-rw-r--r--target/linux/generic/patches-4.1/130-MIPS-kernel-fix-sched_getaffinity-with-MT-FPAFF-enab.patch35
1 files changed, 0 insertions, 35 deletions
diff --git a/target/linux/generic/patches-4.1/130-MIPS-kernel-fix-sched_getaffinity-with-MT-FPAFF-enab.patch b/target/linux/generic/patches-4.1/130-MIPS-kernel-fix-sched_getaffinity-with-MT-FPAFF-enab.patch
deleted file mode 100644
index a7bfef347c..0000000000
--- a/target/linux/generic/patches-4.1/130-MIPS-kernel-fix-sched_getaffinity-with-MT-FPAFF-enab.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From: Felix Fietkau <nbd@openwrt.org>
-Date: Sun, 19 Jul 2015 00:21:57 +0200
-Subject: [PATCH] MIPS: kernel: fix sched_getaffinity with MT FPAFF enabled
-
-p->thread.user_cpus_allowed is zero-initialized and is only filled on
-the first sched_setaffinity call.
-
-To avoid adding overhead in the task initialization codepath, simply OR
-the returned mask in sched_getaffinity with p->cpus_allowed.
-
-Cc: stable@vger.kernel.org
-Signed-off-by: Felix Fietkau <nbd@openwrt.org>
----
-
---- a/arch/mips/kernel/mips-mt-fpaff.c
-+++ b/arch/mips/kernel/mips-mt-fpaff.c
-@@ -154,7 +154,7 @@ asmlinkage long mipsmt_sys_sched_getaffi
- unsigned long __user *user_mask_ptr)
- {
- unsigned int real_len;
-- cpumask_t mask;
-+ cpumask_t allowed, mask;
- int retval;
- struct task_struct *p;
-
-@@ -173,7 +173,8 @@ asmlinkage long mipsmt_sys_sched_getaffi
- if (retval)
- goto out_unlock;
-
-- cpumask_and(&mask, &p->thread.user_cpus_allowed, cpu_possible_mask);
-+ cpumask_or(&allowed, &p->thread.user_cpus_allowed, &p->cpus_allowed);
-+ cpumask_and(&mask, &allowed, cpu_active_mask);
-
- out_unlock:
- read_unlock(&tasklist_lock);