From: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Subject: kernel/fork: use vfree_atomic() to free thread stack vfree() is going to use sleeping lock. Thread stack freed in atomic context, therefore we must use vfree_atomic() here. Link: http://lkml.kernel.org/r/1479474236-4139-6-git-send-email-hch@xxxxxx Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Signed-off-by: Christoph Hellwig <hch@xxxxxx> Cc: Joel Fernandes <joelaf@xxxxxxxxxx> Cc: Jisheng Zhang <jszhang@xxxxxxxxxxx> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Cc: John Dias <joaodias@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/fork.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN kernel/fork.c~kernel-fork-use-vfree_atomic-to-free-thread-stack kernel/fork.c --- a/kernel/fork.c~kernel-fork-use-vfree_atomic-to-free-thread-stack +++ a/kernel/fork.c @@ -229,7 +229,7 @@ static inline void free_thread_stack(str } local_irq_restore(flags); - vfree(tsk->stack); + vfree_atomic(tsk->stack); return; } #endif _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
