Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...

[pandora-kernel.git] / fs / btrfs / inode.c

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 4822b31..6541339 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -93,13 +93,14 @@ static noinline int cow_file_range(struct inode *inode,
                                   unsigned long *nr_written, int unlock);
 
 static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
-                                    struct inode *inode,  struct inode *dir)
+                                    struct inode *inode,  struct inode *dir,
+                                    const struct qstr *qstr)
 {
        int err;
 
        err = btrfs_init_acl(trans, inode, dir);
        if (!err)
-               err = btrfs_xattr_security_init(trans, inode, dir);
+               err = btrfs_xattr_security_init(trans, inode, dir, qstr);
        return err;
 }
 
@@ -111,6 +112,7 @@ static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
 static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
                                struct btrfs_root *root, struct inode *inode,
                                u64 start, size_t size, size_t compressed_size,
+                               int compress_type,
                                struct page **compressed_pages)
 {
        struct btrfs_key key;
@@ -125,12 +127,9 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
        size_t cur_size = size;
        size_t datasize;
        unsigned long offset;
-       int compress_type = BTRFS_COMPRESS_NONE;
 
-       if (compressed_size && compressed_pages) {
-               compress_type = root->fs_info->compress_type;
+       if (compressed_size && compressed_pages)
                cur_size = compressed_size;
-       }
 
        path = btrfs_alloc_path();
        if (!path)
@@ -220,7 +219,7 @@ fail:
 static noinline int cow_file_range_inline(struct btrfs_trans_handle *trans,
                                 struct btrfs_root *root,
                                 struct inode *inode, u64 start, u64 end,
-                                size_t compressed_size,
+                                size_t compressed_size, int compress_type,
                                 struct page **compressed_pages)
 {
        u64 isize = i_size_read(inode);
@@ -253,7 +252,7 @@ static noinline int cow_file_range_inline(struct btrfs_trans_handle *trans,
                inline_len = min_t(u64, isize, actual_end);
        ret = insert_inline_extent(trans, root, inode, start,
                                   inline_len, compressed_size,
-                                  compressed_pages);
+                                  compress_type, compressed_pages);
        BUG_ON(ret);
        btrfs_delalloc_release_metadata(inode, end + 1 - start);
        btrfs_drop_extent_cache(inode, start, aligned_end - 1, 0);
@@ -432,12 +431,13 @@ again:
                         * to make an uncompressed inline extent.
                         */
                        ret = cow_file_range_inline(trans, root, inode,
-                                                   start, end, 0, NULL);
+                                                   start, end, 0, 0, NULL);
                } else {
                        /* try making a compressed inline extent */
                        ret = cow_file_range_inline(trans, root, inode,
                                                    start, end,
-                                                   total_compressed, pages);
+                                                   total_compressed,
+                                                   compress_type, pages);
                }
                if (ret == 0) {
                        /*
@@ -791,7 +791,7 @@ static noinline int cow_file_range(struct inode *inode,
        if (start == 0) {
                /* lets try to make an inline extent */
                ret = cow_file_range_inline(trans, root, inode,
-                                           start, end, 0, NULL);
+                                           start, end, 0, 0, NULL);
                if (ret == 0) {
                        extent_clear_unlock_delalloc(inode,
                                     &BTRFS_I(inode)->io_tree,
@@ -2221,8 +2221,6 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
                        insert = 1;
 #endif
                insert = 1;
-       } else {
-               WARN_ON(!BTRFS_I(inode)->orphan_meta_reserved);
        }
 
        if (!BTRFS_I(inode)->orphan_meta_reserved) {
@@ -4084,7 +4082,6 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
                BTRFS_I(inode)->root = root;
                memcpy(&BTRFS_I(inode)->location, location, sizeof(*location));
                btrfs_read_locked_inode(inode);
-
                inode_tree_add(inode);
                unlock_new_inode(inode);
                if (new)
@@ -4728,7 +4725,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
        if (IS_ERR(inode))
                goto out_unlock;
 
-       err = btrfs_init_inode_security(trans, inode, dir);
+       err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
        if (err) {
                drop_inode = 1;
                goto out_unlock;
@@ -4789,7 +4786,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
        if (IS_ERR(inode))
                goto out_unlock;
 
-       err = btrfs_init_inode_security(trans, inode, dir);
+       err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
        if (err) {
                drop_inode = 1;
                goto out_unlock;
@@ -4830,13 +4827,13 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
        int err;
        int drop_inode = 0;
 
-       if (inode->i_nlink == 0)
-               return -ENOENT;
-
        /* do not allow sys_link's with other subvols of the same device */
        if (root->objectid != BTRFS_I(inode)->root->objectid)
                return -EXDEV;
 
+       if (inode->i_nlink == ~0U)
+               return -EMLINK;
+
        btrfs_inc_nlink(inode);
        inode->i_ctime = CURRENT_TIME;
 
@@ -4918,7 +4915,7 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
        drop_on_err = 1;
 
-       err = btrfs_init_inode_security(trans, inode, dir);
+       err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
        if (err)
                goto out_fail;
 
@@ -6958,8 +6955,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         * should cover the worst case number of items we'll modify.
         */
        trans = btrfs_start_transaction(root, 20);
-       if (IS_ERR(trans))
-               return PTR_ERR(trans);
+       if (IS_ERR(trans)) {
+                ret = PTR_ERR(trans);
+                goto out_notrans;
+        }
 
        btrfs_set_trans_block_group(trans, new_dir);
 
@@ -7059,7 +7058,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
        }
 out_fail:
        btrfs_end_transaction_throttle(trans, root);
-
+out_notrans:
        if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
                up_read(&root->fs_info->subvol_sem);
 
@@ -7211,7 +7210,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
        if (IS_ERR(inode))
                goto out_unlock;
 
-       err = btrfs_init_inode_security(trans, inode, dir);
+       err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
        if (err) {
                drop_inode = 1;
                goto out_unlock;
@@ -7447,7 +7446,6 @@ static const struct address_space_operations btrfs_aops = {
        .writepage      = btrfs_writepage,
        .writepages     = btrfs_writepages,
        .readpages      = btrfs_readpages,
-       .sync_page      = block_sync_page,
        .direct_IO      = btrfs_direct_IO,
        .invalidatepage = btrfs_invalidatepage,
        .releasepage    = btrfs_releasepage,