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Commit b640b2c5 authored by Miao Xie's avatar Miao Xie Committed by Theodore Ts'o
Browse files

ext4: cleanup ext4_expand_extra_isize_ea() 



Clean up some goto statement, make ext4_expand_extra_isize_ea() clearer.

Signed-off-by: default avatarMiao Xie <miaoxie@huawei.com>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
Reviewed-by: default avatarWang Shilong <wshilong@ddn.com>
parent cf0a5e81

fs/ext4/xattr.c

+5 −9
Original line number Diff line number Diff line
@@ -2637,7 +2637,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, 
			       struct ext4_inode *raw_inode, handle_t *handle)

{

	struct ext4_xattr_ibody_header *header;

	struct buffer_head *bh = NULL;

	struct buffer_head *bh;

	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);

	static unsigned int mnt_count;

	size_t min_offs;
@@ -2651,7 +2651,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, 
retry:

	isize_diff = new_extra_isize - EXT4_I(inode)->i_extra_isize;

	if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)

		goto out;

		return 0;



	header = IHDR(inode, raw_inode);
@@ -2686,6 +2686,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, 
			EXT4_ERROR_INODE(inode, "bad block %llu",

					 EXT4_I(inode)->i_file_acl);

			error = -EFSCORRUPTED;

			brelse(bh);

			goto cleanup;

		}

		base = BHDR(bh);
@@ -2693,11 +2694,11 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, 
		min_offs = end - base;

		bfree = ext4_xattr_free_space(BFIRST(bh), &min_offs, base,

					      NULL);

		brelse(bh);

		if (bfree + ifree < isize_diff) {

			if (!tried_min_extra_isize && s_min_extra_isize) {

				tried_min_extra_isize++;

				new_extra_isize = s_min_extra_isize;

				brelse(bh);

				goto retry;

			}

			error = -ENOSPC;
@@ -2715,7 +2716,6 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, 
		    s_min_extra_isize) {

			tried_min_extra_isize++;

			new_extra_isize = s_min_extra_isize;

			brelse(bh);

			goto retry;

		}

		goto cleanup;
@@ -2727,13 +2727,9 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, 
			EXT4_GOOD_OLD_INODE_SIZE + new_extra_isize,

			(void *)header, total_ino);

	EXT4_I(inode)->i_extra_isize = new_extra_isize;

	brelse(bh);

out:

	return 0;



cleanup:

	brelse(bh);

	if (mnt_count != le16_to_cpu(sbi->s_es->s_mnt_count)) {

	if (error && (mnt_count != le16_to_cpu(sbi->s_es->s_mnt_count))) {

		ext4_warning(inode->i_sb, "Unable to expand inode %lu. Delete some EAs or run e2fsck.",

			     inode->i_ino);

		mnt_count = le16_to_cpu(sbi->s_es->s_mnt_count);