ext4: fold quota accounting into ext4_xattr_inode_lookup_create()

[ Upstream commit 8208c41c ]

When allocating EA inode, quota accounting is done just before
ext4_xattr_inode_lookup_create(). Logically these two operations belong
together so just fold quota accounting into
ext4_xattr_inode_lookup_create(). We also make
ext4_xattr_inode_lookup_create() return the looked up / created inode to
convert the function to a more standard calling convention.

Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240209112107.10585-1-jack@suse.cz


Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Stable-dep-of: 0a46ef23 ("ext4: do not create EA inode under buffer lock")
Signed-off-by: Sasha Levin <sashal@kernel.org>