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-rw-r--r--include/linux/fs.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2aa02cad94d4..92efaf1f8977 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -13,6 +13,7 @@
#include <linux/list_lru.h>
#include <linux/llist.h>
#include <linux/radix-tree.h>
+#include <linux/xarray.h>
#include <linux/rbtree.h>
#include <linux/init.h>
#include <linux/pid.h>
@@ -390,12 +391,11 @@ int pagecache_write_end(struct file *, struct address_space *mapping,
struct address_space {
struct inode *host; /* owner: inode, block_device */
- struct radix_tree_root page_tree; /* radix tree of all pages */
- spinlock_t tree_lock; /* and lock protecting it */
+ struct radix_tree_root i_pages; /* cached pages */
atomic_t i_mmap_writable;/* count VM_SHARED mappings */
struct rb_root_cached i_mmap; /* tree of private and shared mappings */
struct rw_semaphore i_mmap_rwsem; /* protect tree, count, list */
- /* Protected by tree_lock together with the radix tree */
+ /* Protected by the i_pages lock */
unsigned long nrpages; /* number of total pages */
/* number of shadow or DAX exceptional entries */
unsigned long nrexceptional;
@@ -1989,7 +1989,7 @@ static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
*
* I_WB_SWITCH Cgroup bdi_writeback switching in progress. Used to
* synchronize competing switching instances and to tell
- * wb stat updates to grab mapping->tree_lock. See
+ * wb stat updates to grab the i_pages lock. See
* inode_switch_wb_work_fn() for details.
*
* I_OVL_INUSE Used by overlayfs to get exclusive ownership on upper