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authorDenis Vlasenko2009-03-28 02:18:49 +0000
committerDenis Vlasenko2009-03-28 02:18:49 +0000
commit020f465cbd997a368f4bb0f82e6025433d2a808a (patch)
treedd8d38524afe1f8a28257e25307dc5f5c74c5574
parent9d04b6b6304f65f4a5118664cc503fdc0f68ea28 (diff)
downloadbusybox-020f465cbd997a368f4bb0f82e6025433d2a808a.zip
busybox-020f465cbd997a368f4bb0f82e6025433d2a808a.tar.gz
mkfs.vfat: small tweak to comments
-rw-r--r--util-linux/mkfs_vfat.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/util-linux/mkfs_vfat.c b/util-linux/mkfs_vfat.c
index 930fd45..95ebcbf 100644
--- a/util-linux/mkfs_vfat.c
+++ b/util-linux/mkfs_vfat.c
@@ -429,6 +429,7 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
// Write filesystem image sequentially (no seeking)
//
{
+ // (a | b) is poor man's max(a, b)
unsigned bufsize = reserved_sect;
//bufsize |= sect_per_fat; // can be quite large
bufsize |= 2; // use this instead
@@ -449,9 +450,10 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
if (volume_size_sect <= 0xffff)
STORE_LE(boot_blk->volume_size_sect, volume_size_sect);
STORE_LE(boot_blk->media_byte, media_byte);
- // Bad: this would make Linux to think that it's fat12/16
+ // wrong: this would make Linux think that it's fat12/16:
//if (sect_per_fat <= 0xffff)
// STORE_LE(boot_blk->sect_per_fat, sect_per_fat);
+ // works:
//STORE_LE(boot_blk->sect_per_fat, 0);
STORE_LE(boot_blk->sect_per_track, sect_per_track);
STORE_LE(boot_blk->heads, heads);