ext4: ea_inode owner should be the same as the inode owner
Quota charging is based on the ownership of the inode. Currently, the
xattr inode owner is set to the caller which may be different from the
parent inode owner. This is inconsistent with how quota is charged for
xattr block and regular data block writes.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 0b77ab9..a29e682 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -824,6 +824,7 @@
struct inode *inode)
{
struct inode *ea_inode = NULL;
+ uid_t owner[2] = { i_uid_read(inode), i_gid_read(inode) };
int err;
/*
@@ -831,7 +832,7 @@
* in the same group, or nearby one.
*/
ea_inode = ext4_new_inode(handle, inode->i_sb->s_root->d_inode,
- S_IFREG | 0600, NULL, inode->i_ino + 1, NULL,
+ S_IFREG | 0600, NULL, inode->i_ino + 1, owner,
EXT4_EA_INODE_FL);
if (!IS_ERR(ea_inode)) {
ea_inode->i_op = &ext4_file_inode_operations;