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_CLUSTSIZEDefine the max cluster size for fat operations elsea 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