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Options: Add "fusion-shm-populate" to enable usage of MAP_POPULATE for shm buffers.

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This commit is contained in:
Denis Oliver Kropp
2014-01-20 20:36:31 +01:00
parent 74a63b3299
commit 040380b8f2
1 changed files with 5 additions and 1 deletions
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6
src/core/shared_secure_surface_pool.c
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@@ -187,6 +187,7 @@ sharedSecureAllocateBuffer( CoreSurfacePool *pool,
SharedAllocationData *alloc = alloc_data;
char buf[FUSION_SHM_TMPFS_PATH_NAME_LEN + 99];
int fd;
int flags = MAP_SHARED;
D_DEBUG_AT( Core_SharedSecure, "%s()\n", __FUNCTION__ );
@@ -216,7 +217,10 @@ sharedSecureAllocateBuffer( CoreSurfacePool *pool,
return DFB_IO;
}
alloc->master_map = mmap( NULL, alloc->size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );
if (direct_config_get_int_value_with_default( "fusion-shm-populate", 0 ))
flags |= MAP_POPULATE;
alloc->master_map = mmap( NULL, alloc->size, PROT_READ | PROT_WRITE, flags, fd, 0 );
close( fd );