linux-kernel - [PATCH] aio: remove bare user-triggerable error printk

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Date:	Tue, 27 Mar 2007 15:44:01 -0700 (PDT)
From:	Zach Brown <zach.brown@...cle.com>
To:	linux-aio@...ck.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Jeff Moyer <jmoyer@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] aio: remove bare user-triggerable error printk

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 all, just remove it.

Signed-off-by: Zach Brown <zach.brown@...cle.com>
---

 fs/aio.c |    1 -
 1 file changed, 1 deletion(-)

--- a/fs/aio.c	Tue Mar 27 14:56:08 2007 -0700
+++ b/fs/aio.c	Tue Mar 27 14:56:49 2007 -0700
@@ -136,7 +136,6 @@ static int aio_setup_ring(struct kioctx 
 				  0);
 	if (IS_ERR((void *)info->mmap_base)) {
 		up_write(&ctx->mm->mmap_sem);
-		printk("mmap err: %ld\n", -info->mmap_base);
 		info->mmap_size = 0;
 		aio_free_ring(ctx);
 		return -EAGAIN;
-
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