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fat: add extended fileds to struct fat_boot_sector

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Later we will need "state" field to check if volume was cleanly unmounted.

Signed-off-by: Oleksij Rempel <[email protected]>
Signed-off-by: OGAWA Hirofumi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Oleksij Rempel 2013-02-27 17:03:07 -08:00 • committed by Linus Torvalds
commit 6b46419b04
2 changed files with 32 additions and 12 deletions
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8
fs/fat/inode.c
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@ -1298,17 +1298,17 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
sbi->prev_free = FAT_START_ENT;
sb->s_maxbytes = 0xffffffff;
if (!sbi->fat_length && b->fat32_length) {
if (!sbi->fat_length && b->fat32.length) {
struct fat_boot_fsinfo *fsinfo;
struct buffer_head *fsinfo_bh;
/* Must be FAT32 */
sbi->fat_bits = 32;
sbi->fat_length = le32_to_cpu(b->fat32_length);
sbi->root_cluster = le32_to_cpu(b->root_cluster);
sbi->fat_length = le32_to_cpu(b->fat32.length);
sbi->root_cluster = le32_to_cpu(b->fat32.root_cluster);
/* MC - if info_sector is 0, don't multiply by 0 */
sbi->fsinfo_sector = le16_to_cpu(b->info_sector);
sbi->fsinfo_sector = le16_to_cpu(b->fat32.info_sector);
if (sbi->fsinfo_sector == 0)
sbi->fsinfo_sector = 1;