diff options
| author | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2006-09-27 01:50:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-27 08:26:17 -0700 |
| commit | 6a1d9805ec506d8b9d04450997707da5f643d87c (patch) | |
| tree | 244a37aa522076010d1d95523a42cdfb17540b73 | |
| parent | 7e96287ddc4f42081e18248b6167041c0908004c (diff) | |
[PATCH] fat: cleanup fat_get_block(s)
get_blocks() was removed. So, this removes it on fat, and will take
advantage of the multi block mapping.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | fs/fat/inode.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index d30151190434..e1035a590664 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -50,14 +50,14 @@ static int fat_add_cluster(struct inode *inode) return err; } -static int __fat_get_blocks(struct inode *inode, sector_t iblock, - unsigned long *max_blocks, - struct buffer_head *bh_result, int create) +static inline int __fat_get_block(struct inode *inode, sector_t iblock, + unsigned long *max_blocks, + struct buffer_head *bh_result, int create) { struct super_block *sb = inode->i_sb; struct msdos_sb_info *sbi = MSDOS_SB(sb); - sector_t phys; unsigned long mapped_blocks; + sector_t phys; int err, offset; err = fat_bmap(inode, iblock, &phys, &mapped_blocks); @@ -73,7 +73,7 @@ static int __fat_get_blocks(struct inode *inode, sector_t iblock, if (iblock != MSDOS_I(inode)->mmu_private >> sb->s_blocksize_bits) { fat_fs_panic(sb, "corrupted file size (i_pos %lld, %lld)", - MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private); + MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private); return -EIO; } @@ -93,34 +93,29 @@ static int __fat_get_blocks(struct inode *inode, sector_t iblock, err = fat_bmap(inode, iblock, &phys, &mapped_blocks); if (err) return err; + BUG_ON(!phys); BUG_ON(*max_blocks != mapped_blocks); set_buffer_new(bh_result); map_bh(bh_result, sb, phys); + return 0; } -static int fat_get_blocks(struct inode *inode, sector_t iblock, - struct buffer_head *bh_result, int create) +static int fat_get_block(struct inode *inode, sector_t iblock, + struct buffer_head *bh_result, int create) { struct super_block *sb = inode->i_sb; - int err; unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; + int err; - err = __fat_get_blocks(inode, iblock, &max_blocks, bh_result, create); + err = __fat_get_block(inode, iblock, &max_blocks, bh_result, create); if (err) return err; bh_result->b_size = max_blocks << sb->s_blocksize_bits; return 0; } -static int fat_get_block(struct inode *inode, sector_t iblock, - struct buffer_head *bh_result, int create) -{ - unsigned long max_blocks = 1; - return __fat_get_blocks(inode, iblock, &max_blocks, bh_result, create); -} - static int fat_writepage(struct page *page, struct writeback_control *wbc) { return block_write_full_page(page, fat_get_block, wbc); @@ -188,7 +183,7 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, * condition of fat_get_block() and ->truncate(). */ return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, - offset, nr_segs, fat_get_blocks, NULL); + offset, nr_segs, fat_get_block, NULL); } static sector_t _fat_bmap(struct address_space *mapping, sector_t block) |