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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>
hifive-unleashed-5.1
Tahsin Erdogan 2017-06-21 21:27:00 -04:00 committed by Theodore Ts'o
parent bd3b963b27
commit 9e1ba00161
1 changed files with 2 additions and 1 deletions
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3
fs/ext4/xattr.c
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@ -824,6 +824,7 @@ static struct inode *ext4_xattr_inode_create(handle_t *handle,
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 @@ static struct inode *ext4_xattr_inode_create(handle_t *handle,
* 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;