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mkfs.vfat: mkdosfs compat with choosing clyster size

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This commit is contained in:
Denis Vlasenko 2009-03-28 03:22:08 +00:00
parent 14ee4e65f1
commit f54dd09171
1 changed files with 5 additions and 5 deletions
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10
util-linux/mkfs_vfat.c
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@ -198,7 +198,6 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
char *buf;
char *device_name;
uoff_t volume_size_bytes;
uoff_t volume_size_blocks;
uoff_t volume_size_sect;
uint32_t total_clust;
uint32_t volume_id;
@ -293,7 +292,6 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
bb_error_msg_and_die("image size is too big");
volume_size_bytes *= 1024;
}
volume_size_blocks = (volume_size_bytes >> BLOCK_SIZE_BITS);
volume_size_sect = volume_size_bytes / bytes_per_sect;
//
@ -325,9 +323,9 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
* fs size <= 16G: 8k clusters
* fs size > 16G: 16k clusters
*/
sect_per_clust = volume_size_bytes > ((off_t)16)*1024*1024*1024 ? 32 :
volume_size_bytes > ((off_t)8)*1024*1024*1024 ? 16 :
volume_size_bytes > 260*1024*1024 ? 8 : 1;
sect_per_clust = volume_size_bytes >= ((off_t)16)*1024*1024*1024 ? 32 :
volume_size_bytes >= ((off_t)8)*1024*1024*1024 ? 16 :
volume_size_bytes >= 260*1024*1024 ? 8 : 1;
} else {
int not_floppy = ioctl(dev, FDGETPRM, &param);
if (not_floppy == 0) {
@ -531,6 +529,7 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
#if 0
if (opts & OPT_c) {
uoff_t volume_size_blocks;
unsigned start_data_sector;
unsigned start_data_block;
unsigned badblocks = 0;
@ -538,6 +537,7 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
off_t currently_testing;
char *blkbuf = xmalloc(BLOCK_SIZE * TEST_BUFFER_BLOCKS);
volume_size_blocks = (volume_size_bytes >> BLOCK_SIZE_BITS);
// N.B. the two following vars are in hard sectors, i.e. SECTOR_SIZE byte sectors!
start_data_sector = (reserved_sect + NUM_FATS * sect_per_fat) * (bytes_per_sect / SECTOR_SIZE);
start_data_block = (start_data_sector + SECTORS_PER_BLOCK - 1) / SECTORS_PER_BLOCK;