| commit | 8018c27b26af56af18eb8b2dc600eba825792d8f | |
| author | Ingo Molnar <mingo@elte.hu> | |
| Sat, 30 Dec 2006 00:50:01 +0000 (29 16:50 -0800) | ||
| committer | Linus Torvalds <torvalds@woody.osdl.org> | |
| Sat, 30 Dec 2006 18:56:44 +0000 (30 10:56 -0800) | ||
| tree | 1125fea536282ff9605f101728a880157796692e | treesnapshot (tar.gz zip) |
| parent | 55a54f79e091d52c3c2835985c347ea4d2e1c21f | commitdiff |
[PATCH] kvm: fix GFP_KERNEL allocation in atomic section in kvm_dev_ioctl_create_vcpu()
fix an GFP_KERNEL allocation in atomic section: kvm_dev_ioctl_create_vcpu()
called kvm_mmu_init(), which calls alloc_pages(), while holding the vcpu.
The fix is to set up the MMU state in two phases: kvm_mmu_create() and
kvm_mmu_setup().
(NOTE: free_vcpus does an kvm_mmu_destroy() call so there's no need for any
extra teardown branch on allocation/init failure here.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
fix an GFP_KERNEL allocation in atomic section: kvm_dev_ioctl_create_vcpu()
called kvm_mmu_init(), which calls alloc_pages(), while holding the vcpu.
The fix is to set up the MMU state in two phases: kvm_mmu_create() and
kvm_mmu_setup().
(NOTE: free_vcpus does an kvm_mmu_destroy() call so there's no need for any
extra teardown branch on allocation/init failure here.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| drivers/kvm/kvm.h | diffblobblamehistory | |
| drivers/kvm/kvm_main.c | diffblobblamehistory | |
| drivers/kvm/mmu.c | diffblobblamehistory |