+++ /dev/null
-Index: linux-stage/fs/ext4/ext4.h
-===================================================================
---- linux-stage.orig/fs/ext4/ext4.h
-+++ linux-stage/fs/ext4/ext4.h
-@@ -1599,6 +1599,19 @@ extern int ext4_orphan_add(handle_t *, s
- extern int ext4_orphan_del(handle_t *, struct inode *);
- extern int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
- __u32 start_minor_hash, __u32 *next_hash);
-+extern struct inode *ext4_create_inode(handle_t *handle,
-+ struct inode * dir, int mode);
-+extern int ext4_add_entry(handle_t *handle, struct dentry *dentry,
-+ struct inode *inode);
-+extern int ext4_delete_entry(handle_t *handle, struct inode * dir,
-+ struct ext4_dir_entry_2 * de_del,
-+ struct buffer_head * bh);
-+extern struct buffer_head * ext4_find_entry(struct inode *dir,
-+ const struct qstr *d_name,
-+ struct ext4_dir_entry_2 ** res_dir);
-+#define ll_ext4_find_entry(inode, dentry, res_dir) ext4_find_entry(inode, &(dentry)->d_name, res_dir)
-+extern int ext4_add_dot_dotdot(handle_t *handle, struct inode *dir,
-+ struct inode *inode);
-
- /* resize.c */
- extern int ext4_group_add(struct super_block *sb,
-Index: linux-stage/fs/ext4/namei.c
-===================================================================
---- linux-stage.orig/fs/ext4/namei.c
-+++ linux-stage/fs/ext4/namei.c
-@@ -24,6 +24,7 @@
- * Theodore Ts'o, 2002
- */
-
-+#include <linux/module.h>
- #include <linux/fs.h>
- #include <linux/pagemap.h>
- #include <linux/jbd2.h>
-@@ -873,9 +874,9 @@ static inline int search_dirblock(struct
- * The returned buffer_head has ->b_count elevated. The caller is expected
- * to brelse() it when appropriate.
- */
--static struct buffer_head * ext4_find_entry (struct inode *dir,
-- const struct qstr *d_name,
-- struct ext4_dir_entry_2 ** res_dir)
-+struct buffer_head * ext4_find_entry(struct inode *dir,
-+ const struct qstr *d_name,
-+ struct ext4_dir_entry_2 ** res_dir)
- {
- struct super_block *sb;
- struct buffer_head *bh_use[NAMEI_RA_SIZE];
-@@ -981,6 +982,7 @@ cleanup_and_exit:
- brelse(bh_use[ra_ptr]);
- return ret;
- }
-+EXPORT_SYMBOL(ext4_find_entry);
-
- static struct buffer_head * ext4_dx_find_entry(struct inode *dir, const struct qstr *d_name,
- struct ext4_dir_entry_2 **res_dir, int *err)
-@@ -1503,8 +1505,8 @@ static int make_indexed_dir(handle_t *ha
- * may not sleep between calling this and putting something into
- * the entry, as someone else might have used it while you slept.
- */
--static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
-- struct inode *inode)
-+int ext4_add_entry(handle_t *handle, struct dentry *dentry,
-+ struct inode *inode)
- {
- struct inode *dir = dentry->d_parent->d_inode;
- struct buffer_head *bh;
-@@ -1553,6 +1555,7 @@ static int ext4_add_entry(handle_t *hand
- brelse(bh);
- return retval;
- }
-+EXPORT_SYMBOL(ext4_add_entry);
-
- /*
- * Returns 0 for success, or a negative error value
-@@ -1692,10 +1695,10 @@ cleanup:
- * ext4_delete_entry deletes a directory entry by merging it with the
- * previous entry
- */
--static int ext4_delete_entry(handle_t *handle,
-- struct inode *dir,
-- struct ext4_dir_entry_2 *de_del,
-- struct buffer_head *bh)
-+int ext4_delete_entry(handle_t *handle,
-+ struct inode *dir,
-+ struct ext4_dir_entry_2 *de_del,
-+ struct buffer_head *bh)
- {
- struct ext4_dir_entry_2 *de, *pde;
- unsigned int blocksize = dir->i_sb->s_blocksize;
-@@ -1730,7 +1733,7 @@ static int ext4_delete_entry(handle_t *h
- }
- return -ENOENT;
- }
--
-+EXPORT_SYMBOL(ext4_delete_entry);
- /*
- * DIR_NLINK feature is set if 1) nlinks > EXT4_LINK_MAX or 2) nlinks == 2,
- * since this indicates that nlinks count was previously 1.
-@@ -1795,6 +1798,27 @@ static unsigned ext4_dentry_goal(struct
- return inum;
- }
-
-+struct inode * ext4_create_inode(handle_t *handle, struct inode * dir, int mode)
-+{
-+ struct inode *inode;
-+
-+ inode = ext4_new_inode(handle, dir, mode, 0, EXT4_SB(dir->i_sb)->s_inode_goal);
-+ if (!IS_ERR(inode)) {
-+ if (S_ISCHR(mode) || S_ISBLK(mode) || S_ISFIFO(mode)) {
-+#ifdef CONFIG_LDISKFS_FS_XATTR
-+ inode->i_op = &ext4_special_inode_operations;
-+#endif
-+ } else {
-+ inode->i_op = &ext4_file_inode_operations;
-+ inode->i_fop = &ext4_file_operations;
-+ ext4_set_aops(inode);
-+ }
-+ unlock_new_inode(inode);
-+ }
-+ return inode;
-+}
-+EXPORT_SYMBOL(ext4_create_inode);
-+
- /*
- * By the time this is called, we already have created
- * the directory cache entry for the new file, but it
-@@ -1871,40 +1895,33 @@ retry:
- return err;
- }
-
--static int ext4_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-+/* Initialize @inode as a subdirectory of @dir, and add the
-+ * "." and ".." entries into the first directory block. */
-+int ext4_add_dot_dotdot(handle_t *handle, struct inode * dir,
-+ struct inode *inode)
- {
-- handle_t *handle;
-- struct inode *inode;
-- struct buffer_head *dir_block;
-- struct ext4_dir_entry_2 *de;
-+ struct buffer_head * dir_block;
-+ struct ext4_dir_entry_2 * de;
- unsigned int blocksize = dir->i_sb->s_blocksize;
-- int err, retries = 0;
--
-- if (EXT4_DIR_LINK_MAX(dir))
-- return -EMLINK;
-+ int err = 0;
-
--retry:
-- handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
-- EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-- EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
- if (IS_ERR(handle))
- return PTR_ERR(handle);
-
- if (IS_DIRSYNC(dir))
- ext4_handle_sync(handle);
-
-- inode = ext4_new_inode(handle, dir, S_IFDIR | mode,
-- &dentry->d_name, ext4_dentry_goal(dir->i_sb, dentry));
-- err = PTR_ERR(inode);
-- if (IS_ERR(inode))
-- goto out_stop;
-
- inode->i_op = &ext4_dir_inode_operations;
- inode->i_fop = &ext4_dir_operations;
- inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize;
- dir_block = ext4_bread(handle, inode, 0, 1, &err);
-- if (!dir_block)
-- goto out_clear_inode;
-+ if (!dir_block) {
-+ clear_nlink(inode);
-+ ext4_mark_inode_dirty(handle, inode);
-+ iput (inode);
-+ goto get_out;
-+ }
- BUFFER_TRACE(dir_block, "get_write_access");
- ext4_journal_get_write_access(handle, dir_block);
- de = (struct ext4_dir_entry_2 *) dir_block->b_data;
-@@ -1926,9 +1943,45 @@ retry:
- ext4_handle_dirty_metadata(handle, dir, dir_block);
- brelse(dir_block);
- ext4_mark_inode_dirty(handle, inode);
-+get_out:
-+ return err;
-+}
-+EXPORT_SYMBOL(ext4_add_dot_dotdot);
-+
-+
-+static int ext4_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-+{
-+ handle_t *handle;
-+ struct inode *inode;
-+ int err, retries = 0;
-+
-+ if (EXT4_DIR_LINK_MAX(dir))
-+ return -EMLINK;
-+
-+retry:
-+ handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
-+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-+ 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb));
-+ if (IS_ERR(handle))
-+ return PTR_ERR(handle);
-+
-+ if (IS_DIRSYNC(dir))
-+ handle->h_sync = 1;
-+
-+ inode = ext4_new_inode(handle, dir, S_IFDIR | mode,
-+ &dentry->d_name, ext4_dentry_goal(dir->i_sb, dentry));
-+ err = PTR_ERR(inode);
-+ if (IS_ERR(inode))
-+ goto out_stop;
-+
-+ err = ext4_add_dot_dotdot(handle, dir, inode);
-+ if (err) {
-+ unlock_new_inode(inode);
-+ goto out_stop;
-+ }
-+
- err = ext4_add_entry(handle, dentry, inode);
- if (err) {
--out_clear_inode:
- clear_nlink(inode);
- unlock_new_inode(inode);
- ext4_mark_inode_dirty(handle, inode);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff