diff options
| -rw-r--r-- | fs/fat/fat.c | 9 | ||||
| -rw-r--r-- | include/fat.h | 2 |
2 files changed, 5 insertions, 6 deletions
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index aa0be18b8..756ac64a8 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -440,10 +440,9 @@ get_vfatname (fsdata *mydata, int curclust, __u8 *cluster, { dir_entry *realdent; dir_slot *slotptr = (dir_slot *)retdent; - __u8 *buflimit = cluster + ((curclust == 0) ? - LINEAR_PREFETCH_SIZE : - (mydata->clust_size * mydata->sect_size) - ); + __u8 *buflimit = cluster + mydata->sect_size * ((curclust == 0) ? + PREFETCH_BLOCKS : + mydata->clust_size); __u8 counter = (slotptr->id & ~LAST_LONG_ENTRY_MASK) & 0xff; int idx = 0; @@ -880,7 +879,7 @@ do_fat_read (const char *filename, void *buffer, unsigned long maxsize, if (disk_read(cursect, (mydata->fatsize == 32) ? (mydata->clust_size) : - LINEAR_PREFETCH_SIZE / mydata->sect_size, + PREFETCH_BLOCKS, do_fat_read_block) < 0) { debug("Error: reading rootdir block\n"); goto exit; diff --git a/include/fat.h b/include/fat.h index c2465d2d3..15dbf1094 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)) |