diff options
| -rw-r--r-- | fs/ocfs2/xattr.c | 147 |
1 files changed, 76 insertions, 71 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index a9339eb94a2..bfa7ee20885 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -157,7 +157,7 @@ static int ocfs2_xattr_index_block_find(struct inode *inode, struct ocfs2_xattr_search *xs); static int ocfs2_xattr_tree_list_index_block(struct inode *inode, - struct ocfs2_xattr_tree_root *xt, + struct buffer_head *blk_bh, char *buffer, size_t buffer_size); @@ -170,8 +170,23 @@ static int ocfs2_xattr_set_entry_index_block(struct inode *inode, struct ocfs2_xattr_search *xs, struct ocfs2_xattr_set_ctxt *ctxt); -static int ocfs2_delete_xattr_index_block(struct inode *inode, - struct buffer_head *xb_bh); +typedef int (xattr_tree_rec_func)(struct inode *inode, + struct buffer_head *root_bh, + u64 blkno, u32 cpos, u32 len, void *para); +static int ocfs2_iterate_xattr_index_block(struct inode *inode, + struct buffer_head *root_bh, + xattr_tree_rec_func *rec_func, + void *para); +static int ocfs2_delete_xattr_in_bucket(struct inode *inode, + struct ocfs2_xattr_bucket *bucket, + void *para); +static int ocfs2_rm_xattr_cluster(struct inode *inode, + struct buffer_head *root_bh, + u64 blkno, + u32 cpos, + u32 len, + void *para); + static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle, u64 src_blk, u64 last_blk, u64 to_blk, unsigned int start_bucket, @@ -870,11 +885,9 @@ static int ocfs2_xattr_block_list(struct inode *inode, struct ocfs2_xattr_header *header = &xb->xb_attrs.xb_header; ret = ocfs2_xattr_list_entries(inode, header, buffer, buffer_size); - } else { - struct ocfs2_xattr_tree_root *xt = &xb->xb_attrs.xb_root; - ret = ocfs2_xattr_tree_list_index_block(inode, xt, + } else + ret = ocfs2_xattr_tree_list_index_block(inode, blk_bh, buffer, buffer_size); - } brelse(blk_bh); @@ -1801,7 +1814,10 @@ static int ocfs2_xattr_block_remove(struct inode *inode, struct ocfs2_xattr_header *header = &(xb->xb_attrs.xb_header); ret = ocfs2_remove_value_outside(inode, &vb, header); } else - ret = ocfs2_delete_xattr_index_block(inode, blk_bh); + ret = ocfs2_iterate_xattr_index_block(inode, + blk_bh, + ocfs2_rm_xattr_cluster, + NULL); return ret; } @@ -3298,22 +3314,19 @@ static int ocfs2_list_xattr_bucket(struct inode *inode, return ret; } -static int ocfs2_xattr_tree_list_index_block(struct inode *inode, - struct ocfs2_xattr_tree_root *xt, - char *buffer, - size_t buffer_size) +static int ocfs2_iterate_xattr_index_block(struct inode *inode, + struct buffer_head *blk_bh, + xattr_tree_rec_func *rec_func, + void *para) { - struct ocfs2_extent_list *el = &xt->xt_list; + struct ocfs2_xattr_block *xb = + (struct ocfs2_xattr_block *)blk_bh->b_data; + struct ocfs2_extent_list *el = &xb->xb_attrs.xb_root.xt_list; int ret = 0; u32 name_hash = UINT_MAX, e_cpos = 0, num_clusters = 0; u64 p_blkno = 0; - struct ocfs2_xattr_tree_list xl = { - .buffer = buffer, - .buffer_size = buffer_size, - .result = 0, - }; - if (le16_to_cpu(el->l_next_free_rec) == 0) + if (!el->l_next_free_rec || !rec_func) return 0; while (name_hash > 0) { @@ -3321,16 +3334,15 @@ static int ocfs2_xattr_tree_list_index_block(struct inode *inode, &e_cpos, &num_clusters, el); if (ret) { mlog_errno(ret); - goto out; + break; } - ret = ocfs2_iterate_xattr_buckets(inode, p_blkno, num_clusters, - ocfs2_list_xattr_bucket, - &xl); + ret = rec_func(inode, blk_bh, p_blkno, e_cpos, + num_clusters, para); if (ret) { if (ret != -ERANGE) mlog_errno(ret); - goto out; + break; } if (e_cpos == 0) @@ -3339,6 +3351,37 @@ static int ocfs2_xattr_tree_list_index_block(struct inode *inode, name_hash = e_cpos - 1; } + return ret; + +} + +static int ocfs2_list_xattr_tree_rec(struct inode *inode, + struct buffer_head *root_bh, + u64 blkno, u32 cpos, u32 len, void *para) +{ + return ocfs2_iterate_xattr_buckets(inode, blkno, len, + ocfs2_list_xattr_bucket, para); +} + +static int ocfs2_xattr_tree_list_index_block(struct inode *inode, + struct buffer_head *blk_bh, + char *buffer, + size_t buffer_size) +{ + int ret; + struct ocfs2_xattr_tree_list xl = { + .buffer = buffer, + .buffer_size = buffer_size, + .result = 0, + }; + + ret = ocfs2_iterate_xattr_index_block(inode, blk_bh, + ocfs2_list_xattr_tree_rec, &xl); + if (ret) { + mlog_errno(ret); + goto out; + } + ret = xl.result; out: return ret; @@ -4897,7 +4940,8 @@ static int ocfs2_rm_xattr_cluster(struct inode *inode, struct buffer_head *root_bh, u64 blkno, u32 cpos, - u32 len) + u32 len, + void *para) { int ret; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); @@ -4909,6 +4953,13 @@ static int ocfs2_rm_xattr_cluster(struct inode *inode, struct ocfs2_cached_dealloc_ctxt dealloc; struct ocfs2_extent_tree et; + ret = ocfs2_iterate_xattr_buckets(inode, blkno, len, + ocfs2_delete_xattr_in_bucket, NULL); + if (ret) { + mlog_errno(ret); + return ret; + } + ocfs2_init_xattr_tree_extent_tree(&et, INODE_CACHE(inode), root_bh); ocfs2_init_dealloc_ctxt(&dealloc); @@ -5331,52 +5382,6 @@ static int ocfs2_delete_xattr_in_bucket(struct inode *inode, return ret; } -static int ocfs2_delete_xattr_index_block(struct inode *inode, - struct buffer_head *xb_bh) -{ - struct ocfs2_xattr_block *xb = - (struct ocfs2_xattr_block *)xb_bh->b_data; - struct ocfs2_extent_list *el = &xb->xb_attrs.xb_root.xt_list; - int ret = 0; - u32 name_hash = UINT_MAX, e_cpos, num_clusters; - u64 p_blkno; - - if (le16_to_cpu(el->l_next_free_rec) == 0) - return 0; - - while (name_hash > 0) { - ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, - &e_cpos, &num_clusters, el); - if (ret) { - mlog_errno(ret); - goto out; - } - - ret = ocfs2_iterate_xattr_buckets(inode, p_blkno, num_clusters, - ocfs2_delete_xattr_in_bucket, - NULL); - if (ret) { - mlog_errno(ret); - goto out; - } - - ret = ocfs2_rm_xattr_cluster(inode, xb_bh, - p_blkno, e_cpos, num_clusters); - if (ret) { - mlog_errno(ret); - break; - } - - if (e_cpos == 0) - break; - - name_hash = e_cpos - 1; - } - -out: - return ret; -} - /* * Whenever we modify a xattr value root in the bucket(e.g, CoW * or change the extent record flag), we need to recalculate |