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authorAlex Shi <alex.shi@linaro.org>2018-02-28 12:01:09 +0800
committerAlex Shi <alex.shi@linaro.org>2018-02-28 12:01:09 +0800
commit6e49b7fa3083c30688b7fff1b37ed891cd1c30af (patch)
tree3054864f2e58bcd86000567ce99e25753ddc794a /arch/alpha/kernel/process.c
parent2ba51c6d36ee1b43c1f898c6c48ddf3d33e9ab30 (diff)
parentbe42cd02846a611af533103a3f4b6a7d8c592f49 (diff)
Merge remote-tracking branch 'rt-stable/v4.9-rt' into linux-linaro-lsk-v4.9-rtlsk-v4.9-18.03-rt
Diffstat (limited to 'arch/alpha/kernel/process.c')
-rw-r--r--arch/alpha/kernel/process.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index b483156698d5..60c17b9bf04d 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -265,12 +265,13 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
application calling fork. */
if (clone_flags & CLONE_SETTLS)
childti->pcb.unique = regs->r20;
+ else
+ regs->r20 = 0; /* OSF/1 has some strange fork() semantics. */
childti->pcb.usp = usp ?: rdusp();
*childregs = *regs;
childregs->r0 = 0;
childregs->r19 = 0;
childregs->r20 = 1; /* OSF/1 has some strange fork() semantics. */
- regs->r20 = 0;
stack = ((struct switch_stack *) regs) - 1;
*childstack = *stack;
childstack->r26 = (unsigned long) ret_from_fork;