tree bb6e9e5c0d6297f93617d222ea11f3c134ccab99
parent 960b3991698872f68f09d51f4c2794ad484fe1fd
author Al Viro <viro@ZenIV.linux.org.uk> 1208633636 +0100
committer Avi Kivity <avi@qumranet.com> 1209309706 +0300

KVM: kill file->f_count abuse in kvm

Use kvm own refcounting instead of playing with ->filp->f_count.
That will allow to get rid of a lot of crap in anon_inode_getfd() and
kill a race in kvm_dev_ioctl_create_vm() (file might have been closed
immediately by another thread, so ->filp might point to already freed
struct file when we get around to setting it).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Avi Kivity <avi@qumranet.com>