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Commit 1bc0af60 authored by Eric Biggers's avatar Eric Biggers Committed by Theodore Ts'o
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ext4: trim return value and 'dir' argument from ext4_insert_dentry() 



In the initial implementation of ext4 encryption, the filename was
encrypted in ext4_insert_dentry(), which could fail and also required
access to the 'dir' inode.  Since then ext4 filename encryption has been
changed to encrypt the filename earlier, so we can revert the additions
to ext4_insert_dentry().

Signed-off-by: default avatarEric Biggers <ebiggers@google.com>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent 5052b069

fs/ext4/ext4.h

+4 −5
Original line number Diff line number Diff line
@@ -2356,8 +2356,7 @@ extern int ext4_find_dest_de(struct inode *dir, struct inode *inode, 
			     void *buf, int buf_size,

			     struct ext4_filename *fname,

			     struct ext4_dir_entry_2 **dest_de);

int ext4_insert_dentry(struct inode *dir,

		       struct inode *inode,

void ext4_insert_dentry(struct inode *inode,

			struct ext4_dir_entry_2 *de,

			int buf_size,

			struct ext4_filename *fname);

fs/ext4/inline.c

+1 −1
Original line number Diff line number Diff line
@@ -1034,7 +1034,7 @@ static int ext4_add_dirent_to_inline(handle_t *handle, 
	err = ext4_journal_get_write_access(handle, iloc->bh);

	if (err)

		return err;

	ext4_insert_dentry(dir, inode, de, inline_size, fname);

	ext4_insert_dentry(inode, de, inline_size, fname);



	ext4_show_inline_dir(dir, iloc->bh, inline_start, inline_size);

fs/ext4/namei.c

+6 −11
Original line number Diff line number Diff line
@@ -1869,8 +1869,7 @@ int ext4_find_dest_de(struct inode *dir, struct inode *inode, 
	return res;

}



int ext4_insert_dentry(struct inode *dir,

		       struct inode *inode,

void ext4_insert_dentry(struct inode *inode,

			struct ext4_dir_entry_2 *de,

			int buf_size,

			struct ext4_filename *fname)
@@ -1892,7 +1891,6 @@ int ext4_insert_dentry(struct inode *dir, 
	ext4_set_de_type(inode->i_sb, de, inode->i_mode);

	de->name_len = fname_len(fname);

	memcpy(de->name, fname_name(fname), fname_len(fname));

	return 0;

}



/*
@@ -1928,11 +1926,8 @@ static int add_dirent_to_buf(handle_t *handle, struct ext4_filename *fname, 
		return err;

	}



	/* By now the buffer is marked for journaling. Due to crypto operations,

	 * the following function call may fail */

	err = ext4_insert_dentry(dir, inode, de, blocksize, fname);

	if (err < 0)

		return err;

	/* By now the buffer is marked for journaling */

	ext4_insert_dentry(inode, de, blocksize, fname);



	/*

	 * XXX shouldn't update any times until successful