diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-05-13 16:19:56 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-05-14 08:53:31 -0500 |
| commit | e7a09b92b70786f9e8c5fbf787e0248c6ebbe707 (patch) | |
| tree | 4a24722a71dd1194a7f7cb455ef48e504925d34d /util | |
| parent | 6eebf958abf3f3f701116d4524ef88bb9fd6e341 (diff) | |
osdep: introduce qemu_anon_ram_free to free qemu_anon_ram_alloc-ed memory
We switched from qemu_memalign to mmap() but then we don't modify
qemu_vfree() to do a munmap() over free(). Which we cannot do
because qemu_vfree() frees memory allocated by qemu_{mem,block}align.
Introduce a new function that does the munmap(), luckily the size is
available in the RAMBlock.
Reported-by: Amos Kong <akong@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1368454796-14989-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'util')
| -rw-r--r-- | util/oslib-posix.c | 8 | ||||
| -rw-r--r-- | util/oslib-win32.c | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 6acbbef971..631a1dea33 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -135,6 +135,14 @@ void qemu_vfree(void *ptr) free(ptr); } +void qemu_anon_ram_free(void *ptr, size_t size) +{ + trace_qemu_anon_ram_free(ptr, size); + if (ptr) { + munmap(ptr, size); + } +} + void qemu_set_block(int fd) { int f; diff --git a/util/oslib-win32.c b/util/oslib-win32.c index 5b1fc20cc6..df2ecbdffb 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -76,6 +76,14 @@ void qemu_vfree(void *ptr) } } +void qemu_anon_ram_free(void *ptr, size_t size) +{ + trace_qemu_anon_ram_free(ptr, size); + if (ptr) { + VirtualFree(ptr, 0, MEM_RELEASE); + } +} + /* FIXME: add proper locking */ struct tm *gmtime_r(const time_t *timep, struct tm *result) { |