From 1e76e5778a1885452939a79d9145b80634a5b023 Mon Sep 17 00:00:00 2001 From: Andreas Bombe Date: Wed, 11 May 2016 03:44:58 +0200 Subject: [PATCH] mkfs: Default to 64/32 heads/sectors for targets smaller than 512 MB This may put defaults in certain use cases a little bit more in line with the old defaults in versions up to 3.0.28. It has mostly aesthetic value in most cases. Signed-off-by: Andreas Bombe --- src/mkfs.fat.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/src/mkfs.fat.c +++ b/src/mkfs.fat.c @@ -519,6 +519,16 @@ static void establish_params(struct devi unsigned int cluster_size = 4; /* starting point for FAT12 and FAT16 */ int def_root_dir_entries = 512; + if (info->size < 512 * 1024 * 1024) { + /* + * These values are more or less meaningless, but we can at least + * use less extreme values for smaller filesystems where the large + * dummy values signifying LBA only access are not needed. + */ + sec_per_track = 32; + heads = 64; + } + if (info->type != TYPE_FIXED) { /* enter default parameters for floppy disks if the size matches */ switch (info->size / 1024) {