On 05/26/2014 03:48 PM, Siva Durga Prasad Paladugu wrote:

Define the MAX_CLUSTSIZE to default of 65536 only if CONFIG_FS_FAT_MAX_CLUSTSIZE is not defined. This option has been provided to save memory in some memory constrained cases.

Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com

Changes in v3: -Used CONFIG_FS_FAT_MAX_CLUSTSIZE to define MAX_CLUSTSIZE as per review comment.

Changes in v2: -Defined CONFIG_FS_FAT_MAX_CLUSTSIZE and documented as per review comment.

README | 6 ++++++ include/fat.h | 6 +++++- 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/README b/README index 5f89552..2f2aba3 100644 --- a/README +++ b/README @@ -1613,6 +1613,12 @@ CBFS (Coreboot Filesystem) support filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls and cbfsload.

+- FAT(File Allocation Table) filesystem cluster size:

• CONFIG_FS_FAT_MAX_CLUSTSIZE
  

• Define the max cluster size for fat operations else
  

• a default value of 65536 will be defined.
  

• Keyboard Support: CONFIG_ISA_KEYBOARD

diff --git a/include/fat.h b/include/fat.h index 81d9790..63cf787 100644 --- a/include/fat.h +++ b/include/fat.h @@ -18,7 +18,11 @@ #define VFAT_MAXSEQ 9 /* Up to 9 of 13 2-byte UTF-16 entries */ #define PREFETCH_BLOCKS 2

-#define MAX_CLUSTSIZE 65536 +#ifndef CONFIG_FS_FAT_MAX_CLUSTSIZE +#define CONFIG_FS_FAT_MAX_CLUSTSIZE 65536 +#endif +#define MAX_CLUSTSIZE CONFIG_FS_FAT_MAX_CLUSTSIZE

#define DIRENTSPERBLOCK (mydata->sect_size / sizeof(dir_entry)) #define DIRENTSPERCLUST ((mydata->clust_size * mydata->sect_size) / \ sizeof(dir_entry))

Acked-by: Michal Simek monstr@monstr.eu

Thanks, Michal