From: Tahsin Erdogan Date: Thu, 22 Jun 2017 02:05:44 +0000 (-0400) Subject: ext4: fix ext4_xattr_make_inode_space() value size calculation X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9bb21cedda7cd69789e1f93d7d918f5ca48ba165;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ext4: fix ext4_xattr_make_inode_space() value size calculation ext4_xattr_make_inode_space() is interested in calculating the inline space used in an inode. When a xattr entry refers to an external inode the value size indicates the external inode size, not the value size in the inline area. Change the function to take this into account. Signed-off-by: Tahsin Erdogan Signed-off-by: Theodore Ts'o --- diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 13b7fa4cbf16..2be891ffeda1 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1745,9 +1745,10 @@ static int ext4_xattr_make_inode_space(handle_t *handle, struct inode *inode, last = IFIRST(header); /* Find the entry best suited to be pushed into EA block */ for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) { - total_size = - EXT4_XATTR_SIZE(le32_to_cpu(last->e_value_size)) + - EXT4_XATTR_LEN(last->e_name_len); + total_size = EXT4_XATTR_LEN(last->e_name_len); + if (!last->e_value_inum) + total_size += EXT4_XATTR_SIZE( + le32_to_cpu(last->e_value_size)); if (total_size <= bfree && total_size < min_total_size) { if (total_size + ifree < isize_diff) { @@ -1766,8 +1767,10 @@ static int ext4_xattr_make_inode_space(handle_t *handle, struct inode *inode, } entry_size = EXT4_XATTR_LEN(entry->e_name_len); - total_size = entry_size + - EXT4_XATTR_SIZE(le32_to_cpu(entry->e_value_size)); + total_size = entry_size; + if (!entry->e_value_inum) + total_size += EXT4_XATTR_SIZE( + le32_to_cpu(entry->e_value_size)); error = ext4_xattr_move_to_block(handle, inode, raw_inode, entry); if (error)