]> git.baikalelectronics.ru Git - kernel.git/commit
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)
commit23995a49fb15847cc653fea32367e3e032e1f132
tree0570b566eede6848db5042f3af8c500a45496532
parentbe64553cec3f338d866975ab9e6b1b42b094c6c3
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: 82b55824e3a1c ("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