diff options
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/xattr.c | 152 |
1 files changed, 82 insertions, 70 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index 38e3e5e..b2e25a8 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -1427,51 +1427,6 @@ out: } -static int ocfs2_xattr_free_block(handle_t *handle, - struct ocfs2_super *osb, - struct ocfs2_xattr_block *xb) -{ - struct inode *xb_alloc_inode; - struct buffer_head *xb_alloc_bh = NULL; - u64 blk = le64_to_cpu(xb->xb_blkno); - u16 bit = le16_to_cpu(xb->xb_suballoc_bit); - u64 bg_blkno = ocfs2_which_suballoc_group(blk, bit); - int ret = 0; - - xb_alloc_inode = ocfs2_get_system_file_inode(osb, - EXTENT_ALLOC_SYSTEM_INODE, - le16_to_cpu(xb->xb_suballoc_slot)); - if (!xb_alloc_inode) { - ret = -ENOMEM; - mlog_errno(ret); - goto out; - } - mutex_lock(&xb_alloc_inode->i_mutex); - - ret = ocfs2_inode_lock(xb_alloc_inode, &xb_alloc_bh, 1); - if (ret < 0) { - mlog_errno(ret); - goto out_mutex; - } - ret = ocfs2_extend_trans(handle, OCFS2_SUBALLOC_FREE); - if (ret < 0) { - mlog_errno(ret); - goto out_unlock; - } - ret = ocfs2_free_suballoc_bits(handle, xb_alloc_inode, xb_alloc_bh, - bit, bg_blkno, 1); - if (ret < 0) - mlog_errno(ret); -out_unlock: - ocfs2_inode_unlock(xb_alloc_inode, 1); - brelse(xb_alloc_bh); -out_mutex: - mutex_unlock(&xb_alloc_inode->i_mutex); - iput(xb_alloc_inode); -out: - return ret; -} - static int ocfs2_remove_value_outside(struct inode*inode, struct buffer_head *bh, struct ocfs2_xattr_header *header) @@ -1533,6 +1488,84 @@ static int ocfs2_xattr_block_remove(struct inode *inode, return ret; } +static int ocfs2_xattr_free_block(struct inode *inode, + u64 block) +{ + struct inode *xb_alloc_inode; + struct buffer_head *xb_alloc_bh = NULL; + struct buffer_head *blk_bh = NULL; + struct ocfs2_xattr_block *xb; + struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); + handle_t *handle; + int ret = 0; + u64 blk, bg_blkno; + u16 bit; + + ret = ocfs2_read_block(osb, block, &blk_bh, + OCFS2_BH_CACHED, inode); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + + /*Verify the signature of xattr block*/ + if (memcmp((void *)blk_bh->b_data, OCFS2_XATTR_BLOCK_SIGNATURE, + strlen(OCFS2_XATTR_BLOCK_SIGNATURE))) { + ret = -EFAULT; + goto out; + } + + ret = ocfs2_xattr_block_remove(inode, blk_bh); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + + xb = (struct ocfs2_xattr_block *)blk_bh->b_data; + blk = le64_to_cpu(xb->xb_blkno); + bit = le16_to_cpu(xb->xb_suballoc_bit); + bg_blkno = ocfs2_which_suballoc_group(blk, bit); + + xb_alloc_inode = ocfs2_get_system_file_inode(osb, + EXTENT_ALLOC_SYSTEM_INODE, + le16_to_cpu(xb->xb_suballoc_slot)); + if (!xb_alloc_inode) { + ret = -ENOMEM; + mlog_errno(ret); + goto out; + } + mutex_lock(&xb_alloc_inode->i_mutex); + + ret = ocfs2_inode_lock(xb_alloc_inode, &xb_alloc_bh, 1); + if (ret < 0) { + mlog_errno(ret); + goto out_mutex; + } + + handle = ocfs2_start_trans(osb, OCFS2_SUBALLOC_FREE); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); + mlog_errno(ret); + goto out_unlock; + } + + ret = ocfs2_free_suballoc_bits(handle, xb_alloc_inode, xb_alloc_bh, + bit, bg_blkno, 1); + if (ret < 0) + mlog_errno(ret); + + ocfs2_commit_trans(osb, handle); +out_unlock: + ocfs2_inode_unlock(xb_alloc_inode, 1); + brelse(xb_alloc_bh); +out_mutex: + mutex_unlock(&xb_alloc_inode->i_mutex); + iput(xb_alloc_inode); +out: + brelse(blk_bh); + return ret; +} + /* * ocfs2_xattr_remove() * @@ -1540,9 +1573,6 @@ static int ocfs2_xattr_block_remove(struct inode *inode, */ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh) { - struct ocfs2_xattr_block *xb; - struct buffer_head *blk_bh = NULL; - struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; handle_t *handle; @@ -1561,22 +1591,10 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh) goto out; } } - if (di->i_xattr_loc) { - ret = ocfs2_read_block(OCFS2_SB(inode->i_sb), - le64_to_cpu(di->i_xattr_loc), - &blk_bh, OCFS2_BH_CACHED, inode); - if (ret < 0) { - mlog_errno(ret); - return ret; - } - /*Verify the signature of xattr block*/ - if (memcmp((void *)blk_bh->b_data, OCFS2_XATTR_BLOCK_SIGNATURE, - strlen(OCFS2_XATTR_BLOCK_SIGNATURE))) { - ret = -EFAULT; - goto out; - } - ret = ocfs2_xattr_block_remove(inode, blk_bh); + if (di->i_xattr_loc) { + ret = ocfs2_xattr_free_block(inode, + le64_to_cpu(di->i_xattr_loc)); if (ret < 0) { mlog_errno(ret); goto out; @@ -1597,11 +1615,7 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh) goto out_commit; } - if (di->i_xattr_loc) { - xb = (struct ocfs2_xattr_block *)blk_bh->b_data; - ocfs2_xattr_free_block(handle, osb, xb); - di->i_xattr_loc = cpu_to_le64(0); - } + di->i_xattr_loc = 0; spin_lock(&oi->ip_lock); oi->ip_dyn_features &= ~(OCFS2_INLINE_XATTR_FL | OCFS2_HAS_XATTR_FL); @@ -1614,8 +1628,6 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh) out_commit: ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle); out: - brelse(blk_bh); - return ret; } |
