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kernel os linux

[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: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

authored by

Zach Brown and committed by
Linus Torvalds
28defbea d4590940

-1
-1
fs/aio.c
··· 136 136 0); 137 137 if (IS_ERR((void *)info->mmap_base)) { 138 138 up_write(&ctx->mm->mmap_sem); 139 - printk("mmap err: %ld\n", -info->mmap_base); 140 139 info->mmap_size = 0; 141 140 aio_free_ring(ctx); 142 141 return -EAGAIN;