Revision d3fccc7ef831d1d829b4da5eaa081db55b1e38f3 authored by Ard Biesheuvel on 10 November 2014, 08:33:56 UTC, committed by Paolo Bonzini on 26 November 2014, 13:40:45 UTC
This reverts commit 85c8555ff0 ("KVM: check for !is_zero_pfn() in
kvm_is_mmio_pfn()") and renames the function to kvm_is_reserved_pfn.
The problem being addressed by the patch above was that some ARM code
based the memory mapping attributes of a pfn on the return value of
kvm_is_mmio_pfn(), whose name indeed suggests that such pfns should
be mapped as device memory.
However, kvm_is_mmio_pfn() doesn't do quite what it says on the tin,
and the existing non-ARM users were already using it in a way which
suggests that its name should probably have been 'kvm_is_reserved_pfn'
from the beginning, e.g., whether or not to call get_page/put_page on
it etc. This means that returning false for the zero page is a mistake
and the patch above should be reverted.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent bb55e9b
| File | Mode | Size |
|---|---|---|
| partitions | ||
| Kconfig | -rw-r--r-- | 3.7 KB |
| Kconfig.iosched | -rw-r--r-- | 1.6 KB |
| Makefile | -rw-r--r-- | 923 bytes |
| bio-integrity.c | -rw-r--r-- | 13.9 KB |
| bio.c | -rw-r--r-- | 50.4 KB |
| blk-cgroup.c | -rw-r--r-- | 29.6 KB |
| blk-cgroup.h | -rw-r--r-- | 16.6 KB |
| blk-core.c | -rw-r--r-- | 89.3 KB |
| blk-exec.c | -rw-r--r-- | 3.5 KB |
| blk-flush.c | -rw-r--r-- | 14.8 KB |
| blk-integrity.c | -rw-r--r-- | 12.4 KB |
| blk-ioc.c | -rw-r--r-- | 10.2 KB |
| blk-iopoll.c | -rw-r--r-- | 5.8 KB |
| blk-lib.c | -rw-r--r-- | 7.3 KB |
| blk-map.c | -rw-r--r-- | 8.2 KB |
| blk-merge.c | -rw-r--r-- | 14.9 KB |
| blk-mq-cpu.c | -rw-r--r-- | 1.6 KB |
| blk-mq-cpumap.c | -rw-r--r-- | 2.5 KB |
| blk-mq-sysfs.c | -rw-r--r-- | 10.6 KB |
| blk-mq-tag.c | -rw-r--r-- | 13.6 KB |
| blk-mq-tag.h | -rw-r--r-- | 2.0 KB |
| blk-mq.c | -rw-r--r-- | 48.7 KB |
| blk-mq.h | -rw-r--r-- | 3.1 KB |
| blk-settings.c | -rw-r--r-- | 27.2 KB |
| blk-softirq.c | -rw-r--r-- | 4.4 KB |
| blk-sysfs.c | -rw-r--r-- | 15.5 KB |
| blk-tag.c | -rw-r--r-- | 9.4 KB |
| blk-throttle.c | -rw-r--r-- | 45.8 KB |
| blk-timeout.c | -rw-r--r-- | 5.7 KB |
| blk.h | -rw-r--r-- | 8.6 KB |
| bounce.c | -rw-r--r-- | 6.5 KB |
| bsg-lib.c | -rw-r--r-- | 6.0 KB |
| bsg.c | -rw-r--r-- | 23.6 KB |
| cfq-iosched.c | -rw-r--r-- | 120.1 KB |
| cmdline-parser.c | -rw-r--r-- | 4.9 KB |
| compat_ioctl.c | -rw-r--r-- | 20.8 KB |
| deadline-iosched.c | -rw-r--r-- | 11.3 KB |
| elevator.c | -rw-r--r-- | 23.7 KB |
| genhd.c | -rw-r--r-- | 44.1 KB |
| ioctl.c | -rw-r--r-- | 10.7 KB |
| ioprio.c | -rw-r--r-- | 5.0 KB |
| noop-iosched.c | -rw-r--r-- | 2.7 KB |
| partition-generic.c | -rw-r--r-- | 14.0 KB |
| scsi_ioctl.c | -rw-r--r-- | 19.6 KB |
| t10-pi.c | -rw-r--r-- | 5.1 KB |
Computing file changes ...
