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part_dos: align disk buffers on cache line to enable DMA and cache 

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Eric Nelson 2012-03-03 12:02:20 +00:00 committed by Anatolij Gustschin
parent 330a091c11
commit dec049d924
1 changed files with 3 additions and 3 deletions
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6
disk/part_dos.c
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@ -87,7 +87,7 @@ static int test_block_type(unsigned char *buffer)
int test_part_dos (block_dev_desc_t *dev_desc) int test_part_dos (block_dev_desc_t *dev_desc)
{ {
unsigned char buffer[dev_desc->blksz]; ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
if ((dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *) buffer) != 1) || if ((dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *) buffer) != 1) ||
(buffer[DOS_PART_MAGIC_OFFSET + 0] != 0x55) || (buffer[DOS_PART_MAGIC_OFFSET + 0] != 0x55) ||
@ -102,7 +102,7 @@ int test_part_dos (block_dev_desc_t *dev_desc)
static void print_partition_extended (block_dev_desc_t *dev_desc, int ext_part_sector, int relative, static void print_partition_extended (block_dev_desc_t *dev_desc, int ext_part_sector, int relative,
int part_num) int part_num)
{ {
unsigned char buffer[dev_desc->blksz]; ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
dos_partition_t *pt; dos_partition_t *pt;
int i; int i;
@ -166,7 +166,7 @@ static int get_partition_info_extended (block_dev_desc_t *dev_desc, int ext_part
int relative, int part_num, int relative, int part_num,
int which_part, disk_partition_t *info) int which_part, disk_partition_t *info)
{ {
unsigned char buffer[dev_desc->blksz]; ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
dos_partition_t *pt; dos_partition_t *pt;
int i; int i;