diff options
| author | Mark Brown <broonie@linaro.org> | 2013-12-09 11:37:00 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-12-09 11:37:00 +0000 |
| commit | eed4bafd63b5584adb832a582a931ecba41dec55 (patch) | |
| tree | 5855807caaf53aec80037b2635eb2e2c0744565b /fs/fat/inode.c | |
| parent | 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff) | |
| parent | 2c06cb20454795a38876be5bd93dd6a8ddcc9d98 (diff) | |
Merge branch 'android-3.10' of https://android.googlesource.com/kernel/common into lsk-v3.10-aosp
Diffstat (limited to 'fs/fat/inode.c')
| -rw-r--r-- | fs/fat/inode.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 5d4513cb1b3..a14dd4c0528 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -1252,6 +1252,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, struct inode *fsinfo_inode = NULL; struct buffer_head *bh; struct fat_boot_sector *b; + struct fat_boot_bsx *bsx; struct msdos_sb_info *sbi; u16 logical_sector_size; u32 total_sectors, total_clusters, fat_clusters, rootdir_sectors; @@ -1398,6 +1399,8 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, goto out_fail; } + bsx = (struct fat_boot_bsx *)(bh->b_data + FAT32_BSX_OFFSET); + fsinfo = (struct fat_boot_fsinfo *)fsinfo_bh->b_data; if (!IS_FSINFO(fsinfo)) { fat_msg(sb, KERN_WARNING, "Invalid FSINFO signature: " @@ -1413,8 +1416,14 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, } brelse(fsinfo_bh); + } else { + bsx = (struct fat_boot_bsx *)(bh->b_data + FAT16_BSX_OFFSET); } + /* interpret volume ID as a little endian 32 bit integer */ + sbi->vol_id = (((u32)bsx->vol_id[0]) | ((u32)bsx->vol_id[1] << 8) | + ((u32)bsx->vol_id[2] << 16) | ((u32)bsx->vol_id[3] << 24)); + sbi->dir_per_block = sb->s_blocksize / sizeof(struct msdos_dir_entry); sbi->dir_per_block_bits = ffs(sbi->dir_per_block) - 1; |