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| author | Namjae Jeon <linkinjeon@gmail.com> | 2011-08-17 19:10:09 +0900 |
|---|---|---|
| committer | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2011-08-17 19:35:00 +0900 |
| commit | 710d4403a45c4040a9aa86971d50958f5ae6ed40 (patch) | |
| tree | 5cbbfedf3357c057f8d0043964e45b2e7597f0f6 /fs/fat/inode.c | |
| parent | 186b53701ca5a843b07ca44a8d954dc6043c70f4 (diff) | |
| download | op-kernel-dev-710d4403a45c4040a9aa86971d50958f5ae6ed40.zip op-kernel-dev-710d4403a45c4040a9aa86971d50958f5ae6ed40.tar.gz | |
fat: fat16 support maximum 4GB file/vol size as WinXP or 7.
FAT16 support maximum 4GB vol/file size with 64KB cluster size.
Win NT/XP/7 increased the maximum cluster size to 64KB, and file/vol
size increased 4GB also. Although increasing, the file size of linux
FAT is still limited at 2GB.
I found that it is limited by sb->maxbytes(0x7fffffff) when partition
is formatted by FAT16. sb->s_maxbytes in fill_super should be set to
0xffffffff like fat32.
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Diffstat (limited to 'fs/fat/inode.c')
| -rw-r--r-- | fs/fat/inode.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 52bcf58..017493b 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -1365,6 +1365,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, sbi->free_clusters = -1; /* Don't know yet */ sbi->free_clus_valid = 0; sbi->prev_free = FAT_START_ENT; + sb->s_maxbytes = 0xffffffff; if (!sbi->fat_length && b->fat32_length) { struct fat_boot_fsinfo *fsinfo; @@ -1375,8 +1376,6 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat, sbi->fat_length = le32_to_cpu(b->fat32_length); sbi->root_cluster = le32_to_cpu(b->root_cluster); - sb->s_maxbytes = 0xffffffff; - /* MC - if info_sector is 0, don't multiply by 0 */ sbi->fsinfo_sector = le16_to_cpu(b->info_sector); if (sbi->fsinfo_sector == 0) |
