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authorTomi Valkeinen <tomi.valkeinen@ti.com>2012-09-03 09:26:33 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2012-09-03 09:26:33 +0300
commitc50e86ce7c2961a41f2f7aa6e4fd6c99229ba205 (patch)
tree4ea36009719bd8fc523239fe1bdccb90f0dce3ae /kernel/softirq.c
parent14d33d384693eb6083396199de516fdef320f7af (diff)
parent4cbe5a555fa58a79b6ecbb6c531b8bab0650778d (diff)
Merge tag 'v3.6-rc4'
Merge 3.6-rc4 to get latest OMAP and device tree fixes.
Diffstat (limited to 'kernel/softirq.c')
-rw-r--r--kernel/softirq.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 671f9594e36..b73e681df09 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -210,6 +210,14 @@ asmlinkage void __do_softirq(void)
__u32 pending;
int max_restart = MAX_SOFTIRQ_RESTART;
int cpu;
+ unsigned long old_flags = current->flags;
+
+ /*
+ * Mask out PF_MEMALLOC s current task context is borrowed for the
+ * softirq. A softirq handled such as network RX might set PF_MEMALLOC
+ * again if the socket is related to swap
+ */
+ current->flags &= ~PF_MEMALLOC;
pending = local_softirq_pending();
account_system_vtime(current);
@@ -265,6 +273,7 @@ restart:
account_system_vtime(current);
__local_bh_enable(SOFTIRQ_OFFSET);
+ tsk_restore_flags(current, old_flags, PF_MEMALLOC);
}
#ifndef __ARCH_HAS_DO_SOFTIRQ