diff options
Diffstat (limited to 'fs/ufs')
| -rw-r--r-- | fs/ufs/inode.c | 50 |
1 files changed, 17 insertions, 33 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index d652f64885fd..c05cf14ef8ff 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -242,10 +242,8 @@ ufs_extend_tail(struct inode *inode, u64 writes_to, /** * ufs_inode_getfrag() - allocate new fragment(s) * @inode: pointer to inode - * @fragment: number of `fragment' which hold pointer - * to new allocated fragment(s) + * @index: number of block pointer within the inode's array. * @new_fragment: number of new allocated fragment(s) - * @required: how many fragment(s) we require * @err: we set it if something wrong * @phys: pointer to where we save physical number of new allocated fragments, * NULL if we allocate not data(indirect blocks for example). @@ -253,15 +251,14 @@ ufs_extend_tail(struct inode *inode, u64 writes_to, * @locked_page: for ufs_new_fragments() */ static u64 -ufs_inode_getfrag(struct inode *inode, u64 fragment, - sector_t new_fragment, unsigned int required, int *err, +ufs_inode_getfrag(struct inode *inode, unsigned index, + sector_t new_fragment, int *err, long *phys, int *new, struct page *locked_page) { struct ufs_inode_info *ufsi = UFS_I(inode); struct super_block *sb = inode->i_sb; struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; - unsigned blockoff; - u64 tmp, goal, lastfrag, block; + u64 tmp, goal, lastfrag; unsigned nfrags = uspi->s_fpb; void *p; @@ -270,9 +267,7 @@ ufs_inode_getfrag(struct inode *inode, u64 fragment, goto ufs2; */ - block = ufs_fragstoblks (fragment); - blockoff = ufs_fragnum (fragment); - p = ufs_get_direct_data_ptr(uspi, ufsi, block); + p = ufs_get_direct_data_ptr(uspi, ufsi, index); tmp = ufs_data_ptr_to_cpu(sb, p); if (tmp) goto out; @@ -284,13 +279,13 @@ ufs_inode_getfrag(struct inode *inode, u64 fragment, nfrags = (new_fragment & uspi->s_fpbmask) + 1; goal = 0; - if (block) { + if (index) { goal = ufs_data_ptr_to_cpu(sb, - ufs_get_direct_data_ptr(uspi, ufsi, block - 1)); + ufs_get_direct_data_ptr(uspi, ufsi, index - 1)); if (goal) goal += uspi->s_fpb; } - tmp = ufs_new_fragments(inode, p, fragment - blockoff, + tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal, uspi->s_fpb, err, phys != NULL ? locked_page : NULL); @@ -408,7 +403,7 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff int ret, err, new; unsigned offsets[4]; int depth = ufs_block_to_path(inode, fragment >> uspi->s_fpbshift, offsets); - unsigned long ptr,phys; + unsigned long phys; u64 phys64 = 0; unsigned frag = fragment & uspi->s_fpbmask; @@ -446,38 +441,27 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff } } - ptr = fragment; - if (depth == 1) { - phys64 = ufs_inode_getfrag(inode, ptr, fragment, 1, &err, &phys, - &new, bh_result->b_page); + phys64 = ufs_inode_getfrag(inode, offsets[0], fragment, + &err, &phys, &new, bh_result->b_page); if (phys64) { phys64 += frag; phys = phys64; } goto out; } - ptr -= UFS_NDIR_FRAGMENT; if (depth == 2) { - phys64 = ufs_inode_getfrag(inode, - UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift), - fragment, uspi->s_fpb, &err, NULL, NULL, - bh_result->b_page); + phys64 = ufs_inode_getfrag(inode, offsets[0], fragment, + &err, NULL, NULL, bh_result->b_page); goto get_indirect; } - ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift); if (depth == 3) { - phys64 = ufs_inode_getfrag(inode, - UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift), - fragment, uspi->s_fpb, &err, NULL, NULL, - bh_result->b_page); + phys64 = ufs_inode_getfrag(inode, offsets[0], fragment, + &err, NULL, NULL, bh_result->b_page); goto get_double; } - ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift); - phys64 = ufs_inode_getfrag(inode, - UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift), - fragment, uspi->s_fpb, &err, NULL, NULL, - bh_result->b_page); + phys64 = ufs_inode_getfrag(inode, offsets[0], fragment, + &err, NULL, NULL, bh_result->b_page); phys64 = ufs_inode_getblock(inode, phys64, offsets[1], fragment, &err, NULL, NULL, NULL); get_double: |