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(parent: f0e7c4b) | patch
ptr_ring: try vmalloc() when kmalloc() fails
authorJason Wang <jasowang@redhat.com>
Fri, 9 Feb 2018 09:45:50 +0000 (17:45 +0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 9 Feb 2018 19:28:57 +0000 (14:28 -0500)
commit01b5ad5b23b65139da85bfb2a07bcc1bf3eea9a1
tree0570b566eede6848db5042f3af8c500a45496532tree | snapshot
parentf0e7c4b04688ded174fd1f0b7aba9e1b0dcefe9bcommit | diff
ptr_ring: try vmalloc() when kmalloc() fails

This patch switch to use kvmalloc_array() for using a vmalloc()
fallback to help in case kmalloc() fails.

Reported-by: syzbot+e4d4f9ddd4295539735d@syzkaller.appspotmail.com
Fixes: 6b7f9e897a1b3 ("ptr_ring: array based FIFO for pointers")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/ptr_ring.h diff | blob | history
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