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Commit 28defbea authored by Zach Brown's avatar Zach Brown Committed by Linus Torvalds
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[PATCH] aio: remove bare user-triggerable error printk 



The user can generate console output if they cause do_mmap() to fail
during sys_io_setup().  This was seen in a regression test that does
exactly that by spinning calling mmap() until it gets -ENOMEM before
calling io_setup().

We don't need this printk at all, just remove it.

Signed-off-by: default avatarZach Brown <zach.brown@oracle.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d4590940

fs/aio.c

+0 −1
Original line number Original line Diff line number Diff line
@@ -136,7 +136,6 @@ static int aio_setup_ring(struct kioctx *ctx) 
				  0);

				  0);

	if (IS_ERR((void *)info->mmap_base)) {

	if (IS_ERR((void *)info->mmap_base)) {

		up_write(&ctx->mm->mmap_sem);

		up_write(&ctx->mm->mmap_sem);

		printk("mmap err: %ld\n", -info->mmap_base);

		info->mmap_size = 0;

		info->mmap_size = 0;

		aio_free_ring(ctx);

		aio_free_ring(ctx);

		return -EAGAIN;

		return -EAGAIN;