diff options
| -rw-r--r-- | fs/ufs/inode.c | 62 |
1 files changed, 16 insertions, 46 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index 6866b904f148..25d47df934e2 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -337,8 +337,8 @@ repeat2: /** * ufs_inode_getblock() - allocate new block * @inode: pointer to inode - * @bh: pointer to block which hold "pointer" to new allocated block - * @index: number of pointer in the indirect block + * @ind_block: block number of the indirect block + * @index: number of pointer within the indirect block * @new_fragment: number of new allocated fragment * (block will hold this fragment and also uspi->s_fpb-1) * @err: see ufs_inode_getfrag() @@ -347,23 +347,25 @@ repeat2: * @locked_page: see ufs_inode_getfrag() */ static u64 -ufs_inode_getblock(struct inode *inode, struct buffer_head *bh, +ufs_inode_getblock(struct inode *inode, u64 ind_block, unsigned index, sector_t new_fragment, int *err, long *phys, int *new, struct page *locked_page) { struct super_block *sb = inode->i_sb; struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; + int shift = uspi->s_apbshift - uspi->s_fpbshift; u64 tmp = 0, goal; + struct buffer_head *bh; void *p; - if (!bh) - goto out; - if (!buffer_uptodate(bh)) { - ll_rw_block (READ, 1, &bh); - wait_on_buffer (bh); - if (!buffer_uptodate(bh)) - goto out; - } + if (!ind_block) + return 0; + + bh = sb_bread(sb, ind_block + (index >> shift)); + if (unlikely(!bh)) + return 0; + + index &= uspi->s_apbmask >> uspi->s_fpbshift; if (uspi->fs_magic == UFS2_MAGIC) p = (__fs64 *)bh->b_data + index; else @@ -459,12 +461,6 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift), fragment, uspi->s_fpb, &err, NULL, NULL, bh_result->b_page); - if (phys64) { - phys64 += (ptr >> uspi->s_apbshift) & uspi->s_fpbmask; - bh = sb_getblk(sb, phys64); - } else { - bh = NULL; - } goto get_indirect; } ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift); @@ -473,12 +469,6 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift), fragment, uspi->s_fpb, &err, NULL, NULL, bh_result->b_page); - if (phys64) { - phys64 += (ptr >> uspi->s_2apbshift) & uspi->s_fpbmask; - bh = sb_getblk(sb, phys64); - } else { - bh = NULL; - } goto get_double; } ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift); @@ -486,33 +476,13 @@ static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buff UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift), fragment, uspi->s_fpb, &err, NULL, NULL, bh_result->b_page); - if (phys64) { - phys64 += (ptr >> uspi->s_3apbshift) & uspi->s_fpbmask; - bh = sb_getblk(sb, phys64); - } else { - bh = NULL; - } - phys64 = ufs_inode_getblock(inode, bh, - offsets[1] & mask, + phys64 = ufs_inode_getblock(inode, phys64, offsets[1], fragment, &err, NULL, NULL, NULL); - if (phys64) { - phys64 += (ptr >> uspi->s_2apbshift) & uspi->s_fpbmask, - bh = sb_getblk(sb, phys64); - } else { - bh = NULL; - } get_double: - phys64 = ufs_inode_getblock(inode, bh, - offsets[depth - 2] & mask, + phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 2], fragment, &err, NULL, NULL, NULL); - if (phys64) { - phys64 += (ptr >> uspi->s_apbshift) & uspi->s_fpbmask, - bh = sb_getblk(sb, phys64); - } else { - bh = NULL; - } get_indirect: - phys64 = ufs_inode_getblock(inode, bh, offsets[depth - 1] & mask, + phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1], fragment, &err, &phys, &new, bh_result->b_page); if (phys64) { phys64 += frag; |