diff options
| author | Eduardo Habkost <ehabkost@redhat.com> | 2015-11-06 20:11:21 -0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-12-17 15:24:34 +0100 |
| commit | 2f3a2bb15e665f23c885985226c4147db4ea35db (patch) | |
| tree | 3eafedd886c07a5ed8b39e683328592e1af5ca62 /exec.c | |
| parent | fc3e7665d7fe1b2f842441d250d7afec26b8a910 (diff) | |
exec: Remove unnecessary RAM_FILE flag
The only code that sets RAMBlock.fd is file_ram_alloc(), and the only
code that calls file_ram_alloc() sets the RAM_FILE flag. That means the
flag is always set when RAMBlock.fd >= 0, and the munmap() call at
reclaim_ramblock() is dead code that never runs.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446847881-9385-1-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 10 |
1 files changed, 1 insertions, 9 deletions
@@ -88,9 +88,6 @@ static MemoryRegion io_mem_unassigned; */ #define RAM_RESIZEABLE (1 << 2) -/* RAM is backed by an mmapped file. - */ -#define RAM_FILE (1 << 3) #endif struct CPUTailQ cpus = QTAILQ_HEAD_INITIALIZER(cpus); @@ -1601,7 +1598,6 @@ ram_addr_t qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr, new_block->used_length = size; new_block->max_length = size; new_block->flags = share ? RAM_SHARED : 0; - new_block->flags |= RAM_FILE; new_block->host = file_ram_alloc(new_block, size, mem_path, errp); if (!new_block->host) { @@ -1684,11 +1680,7 @@ static void reclaim_ramblock(RAMBlock *block) xen_invalidate_map_cache_entry(block->host); #ifndef _WIN32 } else if (block->fd >= 0) { - if (block->flags & RAM_FILE) { - qemu_ram_munmap(block->host, block->max_length); - } else { - munmap(block->host, block->max_length); - } + qemu_ram_munmap(block->host, block->max_length); close(block->fd); #endif } else { |