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| author |   Palmer Dabbelt <palmer@sifive.com> | 2018-10-02 12:15:02 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2018-10-22 17:03:36 -0700 |
| commit | 46373cb442c56d2f8a4c8b3f777c89d20546c9d5 (patch) | |
| tree | 54268e1abc962ff72a2c835cde3df095587b3d46 /arch/riscv/kernel/smpboot.c | |
| parent | RISC-V: Rename im_okay_therefore_i_am to found_boot_cpu (diff) | |
| download | linux-dev-46373cb442c56d2f8a4c8b3f777c89d20546c9d5.tar.xz linux-dev-46373cb442c56d2f8a4c8b3f777c89d20546c9d5.zip | |
RISC-V: Use mmgrab()
commit f1f1007644ff ("mm: add new mmgrab() helper") added a
helper that we missed out on.
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/riscv/kernel/smpboot.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c index 4a232600cedb..17e748312afd 100644 --- a/arch/riscv/kernel/smpboot.c +++ b/arch/riscv/kernel/smpboot.c @@ -30,6 +30,7 @@ #include <linux/irq.h> #include <linux/of.h> #include <linux/sched/task_stack.h> +#include <linux/sched/mm.h> #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> @@ -101,7 +102,7 @@ asmlinkage void __init smp_callin(void) struct mm_struct *mm = &init_mm; /* All kernel threads share the same mm context. */ - atomic_inc(&mm->mm_count); + mmgrab(mm); current->active_mm = mm; trap_init(); |