From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Sat, 19 Apr 2008 19:33:56 +0000 (+0100)
Subject: KVM: kill file->f_count abuse in kvm
X-Git-Tag: v2.6.26-rc1~1028^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66c0b394f08fd89236515c1c84485ea712a157be;p=pandora-kernel.git

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>
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