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author | Michael Brown | 2007-01-18 13:54:18 +0100 |
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committer | Michael Brown | 2007-01-18 13:54:18 +0100 |
commit | 35776f481c02caa700369db0e884bd9f7c7d3c0e (patch) | |
tree | 1deb52c624ab9bf9c56f5c26520d198a29e228f0 /src/core/malloc.c | |
parent | Switch from calloc() to malloc()+memset() to match the practices used (diff) | |
download | ipxe-35776f481c02caa700369db0e884bd9f7c7d3c0e.tar.gz ipxe-35776f481c02caa700369db0e884bd9f7c7d3c0e.tar.xz ipxe-35776f481c02caa700369db0e884bd9f7c7d3c0e.zip |
Don't always zero memory in malloc(). This saves around 2us on a
full-length PKB allocation.
Diffstat (limited to 'src/core/malloc.c')
-rw-r--r-- | src/core/malloc.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/core/malloc.c b/src/core/malloc.c index bb34db31..db2b500c 100644 --- a/src/core/malloc.c +++ b/src/core/malloc.c @@ -134,8 +134,6 @@ void * alloc_memblock ( size_t size, size_t align ) { */ if ( pre_size < MIN_MEMBLOCK_SIZE ) list_del ( &pre->list ); - /* Zero allocated memory, for calloc() */ - memset ( block, 0, size ); DBG ( "Allocated [%p,%p)\n", block, ( ( ( void * ) block ) + size ) ); return block; @@ -298,6 +296,23 @@ void free ( void *ptr ) { } /** + * Allocate cleared memory + * + * @v size Requested size + * @ret ptr Allocated memory + * + * Allocate memory as per malloc(), and zero it. + */ +void * _calloc ( size_t size ) { + void *data; + + data = malloc ( size ); + if ( data ) + memset ( data, 0, size ); + return data; +} + +/** * Add memory to allocation pool * * @v start Start address |