提交 28defbea 编写于 作者: Z Zach Brown 提交者: Linus Torvalds

[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: NZach Brown <zach.brown@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 d4590940
...@@ -136,7 +136,6 @@ static int aio_setup_ring(struct kioctx *ctx) ...@@ -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;
......
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