ext4: Convert to generic reserved quota's space management.
This patch also fixes write vs chown race condition.
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ab31e65..56f9271 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -704,6 +704,10 @@
__u16 i_extra_isize;
spinlock_t i_block_reservation_lock;
+#ifdef CONFIG_QUOTA
+ /* quota space reservation, managed internally by quota code */
+ qsize_t i_reserved_quota;
+#endif
/* completed async DIOs that might need unwritten extents handling */
struct list_head i_aio_dio_complete_list;
@@ -1435,7 +1439,7 @@
extern int ext4_block_truncate_page(handle_t *handle,
struct address_space *mapping, loff_t from);
extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
-extern qsize_t ext4_get_reserved_space(struct inode *inode);
+extern qsize_t *ext4_get_reserved_space(struct inode *inode);
extern int flush_aio_dio_completed_IO(struct inode *inode);
/* ioctl.c */
extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
