Commit e875a2dd authored by Michael Halcrow's avatar Michael Halcrow Committed by Theodore Ts'o
Browse files

ext4 crypto: export ext4_empty_dir() 



Required for future encryption xattr changes.

Signed-off-by: default avatarMichael Halcrow <mhalcrow@google.com>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent b17655fb

fs/ext4/ext4.h

+1 −0
Original line number Diff line number Diff line
@@ -2199,6 +2199,7 @@ extern int ext4_generic_delete_entry(handle_t *handle, 
				     void *entry_buf,

				     int buf_size,

				     int csum_size);

extern int ext4_empty_dir(struct inode *inode);



/* resize.c */

extern int ext4_group_add(struct super_block *sb,

fs/ext4/namei.c

+6 −5
Original line number Diff line number Diff line
@@ -2457,7 +2457,7 @@ out_stop: 
/*

 * routine to check that the specified directory is empty (for rmdir)

 */

static int empty_dir(struct inode *inode)

int ext4_empty_dir(struct inode *inode)

{

	unsigned int offset;

	struct buffer_head *bh;
@@ -2725,7 +2725,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry) 
		goto end_rmdir;



	retval = -ENOTEMPTY;

	if (!empty_dir(inode))

	if (!ext4_empty_dir(inode))

		goto end_rmdir;



	handle = ext4_journal_start(dir, EXT4_HT_DIR,
@@ -3285,7 +3285,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, 
	if (S_ISDIR(old.inode->i_mode)) {

		if (new.inode) {

			retval = -ENOTEMPTY;

			if (!empty_dir(new.inode))

			if (!ext4_empty_dir(new.inode))

				goto end_rename;

		} else {

			retval = -EMLINK;
@@ -3359,8 +3359,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, 


		ext4_dec_count(handle, old.dir);

		if (new.inode) {

			/* checked empty_dir above, can't have another parent,

			 * ext4_dec_count() won't work for many-linked dirs */

			/* checked ext4_empty_dir above, can't have another

			 * parent, ext4_dec_count() won't work for many-linked

			 * dirs */

			clear_nlink(new.inode);

		} else {

			ext4_inc_count(handle, new.dir);