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[PATCH] ufs2 write: block allocation update

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Patch adds ability to work with 64bit metadata, this made by replacing work
with 32bit pointers by inline functions.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Evgeniy Dushistov
2007-02-12 00:54:32 -08:00
committed by Linus Torvalds
parent 3313e29267
commit 54fb996ac1
6 changed files with 320 additions and 190 deletions
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57
fs/ufs/util.h
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@@ -305,8 +305,22 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
(((__fs32*)((ubh)->bh[(begin) >> (uspi->s_fshift-2)]->b_data)) + \
((begin) & ((uspi->s_fsize>>2) - 1)))
#define ubh_get_addr64(ubh,begin) \
(((__fs64*)((ubh)->bh[(begin) >> (uspi->s_fshift-3)]->b_data)) + \
((begin) & ((uspi->s_fsize>>3) - 1)))
#define ubh_get_addr ubh_get_addr8
static inline void *ubh_get_data_ptr(struct ufs_sb_private_info *uspi,
struct ufs_buffer_head *ubh,
u64 blk)
{
if (uspi->fs_magic == UFS2_MAGIC)
return ubh_get_addr64(ubh, blk);
else
return ubh_get_addr32(ubh, blk);
}
#define ubh_blkmap(ubh,begin,bit) \
((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
@@ -507,3 +521,46 @@ static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
if (fragsize > 0 && fragsize < uspi->s_fpb)
fs32_add(sb, &fraglist[fragsize], cnt);
}
static inline void *ufs_get_direct_data_ptr(struct ufs_sb_private_info *uspi,
struct ufs_inode_info *ufsi,
unsigned blk)
{
BUG_ON(blk > UFS_TIND_BLOCK);
return uspi->fs_magic == UFS2_MAGIC ?
(void *)&ufsi->i_u1.u2_i_data[blk] :
(void *)&ufsi->i_u1.i_data[blk];
}
static inline u64 ufs_data_ptr_to_cpu(struct super_block *sb, void *p)
{
return UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC ?
fs64_to_cpu(sb, *(__fs64 *)p) :
fs32_to_cpu(sb, *(__fs32 *)p);
}
static inline void ufs_cpu_to_data_ptr(struct super_block *sb, void *p, u64 val)
{
if (UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC)
*(__fs64 *)p = cpu_to_fs64(sb, val);
else
*(__fs32 *)p = cpu_to_fs32(sb, val);
}
static inline void ufs_data_ptr_clear(struct ufs_sb_private_info *uspi,
void *p)
{
if (uspi->fs_magic == UFS2_MAGIC)
*(__fs64 *)p = 0;
else
*(__fs32 *)p = 0;
}
static inline int ufs_is_data_ptr_zero(struct ufs_sb_private_info *uspi,
void *p)
{
if (uspi->fs_magic == UFS2_MAGIC)
return *(__fs64 *)p == 0;
else
return *(__fs32 *)p == 0;
}