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| author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2011-08-19 09:37:46 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-10-01 21:52:19 +0200 |
| commit | 025421eab453fd41a3cc14a0fc48115b0dc4c287 (patch) | |
| tree | edea3f18319116fc6320b90617844a40f35ce842 /include/fat.h | |
| parent | 40e219165bcdf450cc69976fa129f2ef9889973a (diff) | |
| download | u-boot-midas-025421eab453fd41a3cc14a0fc48115b0dc4c287.tar.gz u-boot-midas-025421eab453fd41a3cc14a0fc48115b0dc4c287.tar.bz2 u-boot-midas-025421eab453fd41a3cc14a0fc48115b0dc4c287.zip | |
fat: replace LINEAR_PREFETCH_SIZE with PREFETCH_BLOCKS
Currently in do_fat_read() when reading FAT sectors, we have to divide down
LINEAR_PREFETCH_SIZE by the sector size, whereas it's defined as 2 sectors
worth of bytes. In order to avoid redundant multiplication/division, introduce
#define PREFETCH_BLOCKS instead of #define LINEAR_PREFETCH_SIZE.
Signed-off-by: Sergei Shtylyov <sshtylyov@mvista.com>
Diffstat (limited to 'include/fat.h')
| -rw-r--r-- | include/fat.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/fat.h b/include/fat.h index c2465d2d3e..15dbf1094c 100644 --- a/include/fat.h +++ b/include/fat.h @@ -33,7 +33,7 @@ /* Maximum Long File Name length supported here is 128 UTF-16 code units */ #define VFAT_MAXLEN_BYTES 256 /* Maximum LFN buffer in bytes */ #define VFAT_MAXSEQ 9 /* Up to 9 of 13 2-byte UTF-16 entries */ -#define LINEAR_PREFETCH_SIZE (mydata->sect_size*2) /* Prefetch buffer size */ +#define PREFETCH_BLOCKS 2 #define MAX_CLUSTSIZE 65536 #define DIRENTSPERBLOCK (mydata->sect_size / sizeof(dir_entry)) |