X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fnfs_page.h;h=91c7b18c47d8daad732b62e999f09b0fe65b82f4;hb=bcb71bba7e64f0442d0ca339d7d3117a7060589f;hp=66e2ed6585274ec92f75dea7b9272d5b59b4bd48;hpb=9fdb62af92c741addbea15545f214a6e89460865;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 66e2ed658527..91c7b18c47d8 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -13,7 +13,6 @@
 #include <linux/list.h>
 #include <linux/pagemap.h>
 #include <linux/wait.h>
-#include <linux/nfs_fs_sb.h>
 #include <linux/sunrpc/auth.h>
 #include <linux/nfs_xdr.h>
 
@@ -31,6 +30,7 @@
 #define PG_BUSY			0
 #define PG_NEED_COMMIT		1
 #define PG_NEED_RESCHED		2
+#define PG_NEED_FLUSH		3
 
 struct nfs_inode;
 struct nfs_page {
@@ -48,9 +48,20 @@ struct nfs_page {
 	struct nfs_writeverf	wb_verf;	/* Commit cookie */
 };
 
+struct nfs_pageio_descriptor {
+	struct list_head	pg_list;
+	unsigned long		pg_bytes_written;
+	size_t			pg_count;
+	size_t			pg_bsize;
+	unsigned int		pg_base;
+
+	struct inode		*pg_inode;
+	int			(*pg_doio)(struct inode *, struct list_head *, size_t, int);
+	int 			pg_ioflags;
+	int			pg_error;
+};
+
 #define NFS_WBACK_BUSY(req)	(test_bit(PG_BUSY,&(req)->wb_flags))
-#define NFS_NEED_COMMIT(req)	(test_bit(PG_NEED_COMMIT,&(req)->wb_flags))
-#define NFS_NEED_RESCHED(req)	(test_bit(PG_NEED_RESCHED,&(req)->wb_flags))
 
 extern	struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
 					    struct inode *inode,
@@ -61,12 +72,19 @@ extern	void nfs_clear_request(struct nfs_page *req);
 extern	void nfs_release_request(struct nfs_page *req);
 
 
-extern  int nfs_scan_lock_dirty(struct nfs_inode *nfsi, struct list_head *dst,
-				unsigned long idx_start, unsigned int npages);
-extern	int nfs_scan_list(struct list_head *, struct list_head *,
-			  unsigned long, unsigned int);
-extern	int nfs_coalesce_requests(struct list_head *, struct list_head *,
-				  unsigned int);
+extern	long nfs_scan_dirty(struct address_space *mapping,
+				struct writeback_control *wbc,
+				struct list_head *dst);
+extern	int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *head, struct list_head *dst,
+			  unsigned long idx_start, unsigned int npages);
+extern	void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
+			     struct inode *inode,
+			     int (*doio)(struct inode *, struct list_head *, size_t, int),
+			     size_t bsize,
+			     int how);
+extern	void nfs_pageio_add_list(struct nfs_pageio_descriptor *,
+				 struct list_head *);
+extern	void nfs_pageio_complete(struct nfs_pageio_descriptor *desc);
 extern  int nfs_wait_on_request(struct nfs_page *);
 extern	void nfs_unlock_request(struct nfs_page *req);
 extern  int nfs_set_page_writeback_locked(struct nfs_page *req);
@@ -120,34 +138,6 @@ nfs_list_remove_request(struct nfs_page *req)
 	req->wb_list_head = NULL;
 }
 
-static inline int
-nfs_defer_commit(struct nfs_page *req)
-{
-	return !test_and_set_bit(PG_NEED_COMMIT, &req->wb_flags);
-}
-
-static inline void
-nfs_clear_commit(struct nfs_page *req)
-{
-	smp_mb__before_clear_bit();
-	clear_bit(PG_NEED_COMMIT, &req->wb_flags);
-	smp_mb__after_clear_bit();
-}
-
-static inline int
-nfs_defer_reschedule(struct nfs_page *req)
-{
-	return !test_and_set_bit(PG_NEED_RESCHED, &req->wb_flags);
-}
-
-static inline void
-nfs_clear_reschedule(struct nfs_page *req)
-{
-	smp_mb__before_clear_bit();
-	clear_bit(PG_NEED_RESCHED, &req->wb_flags);
-	smp_mb__after_clear_bit();
-}
-
 static inline struct nfs_page *
 nfs_list_entry(struct list_head *head)
 {