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| author | David S. Miller <davem@davemloft.net> | 2017-12-09 22:09:55 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-09 22:09:55 -0500 |
| commit | 51e18a453f5f59a40c721d4aeab082b4e2e9fac6 (patch) | |
| tree | 540d37e6f7a83466677ab6095fcdd2d6f72583c4 /arch/arm64/kernel/process.c | |
| parent | 5e54b3c1202765ae62de24a160f1eaf6b0ebf9d4 (diff) | |
| parent | f335195adf043168ee69d78ea72ac3e30f0c57ce (diff) | |
| download | linux-51e18a453f5f59a40c721d4aeab082b4e2e9fac6.tar.gz linux-51e18a453f5f59a40c721d4aeab082b4e2e9fac6.tar.bz2 linux-51e18a453f5f59a40c721d4aeab082b4e2e9fac6.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflict was two parallel additions of include files to sch_generic.c,
no biggie.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64/kernel/process.c')
| -rw-r--r-- | arch/arm64/kernel/process.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index b2adcce7bc18..6b7dcf4310ac 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -314,6 +314,15 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start, clear_tsk_thread_flag(p, TIF_SVE); p->thread.sve_state = NULL; + /* + * In case p was allocated the same task_struct pointer as some + * other recently-exited task, make sure p is disassociated from + * any cpu that may have run that now-exited task recently. + * Otherwise we could erroneously skip reloading the FPSIMD + * registers for p. + */ + fpsimd_flush_task_state(p); + if (likely(!(p->flags & PF_KTHREAD))) { *childregs = *current_pt_regs(); childregs->regs[0] = 0; |