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Diffstat (limited to 'include/linux/nfs_page.h')
-rw-r--r--include/linux/nfs_page.h17
1 files changed, 12 insertions, 5 deletions
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 25311b3bedf8..e2791a27a901 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -55,20 +55,28 @@ struct nfs_page {
55 struct nfs_writeverf wb_verf; /* Commit cookie */ 55 struct nfs_writeverf wb_verf; /* Commit cookie */
56}; 56};
57 57
58struct nfs_pageio_descriptor;
59struct nfs_pageio_ops {
60 void (*pg_init)(struct nfs_pageio_descriptor *, struct nfs_page *);
61 bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
62 int (*pg_doio)(struct nfs_pageio_descriptor *);
63};
64
58struct nfs_pageio_descriptor { 65struct nfs_pageio_descriptor {
59 struct list_head pg_list; 66 struct list_head pg_list;
60 unsigned long pg_bytes_written; 67 unsigned long pg_bytes_written;
61 size_t pg_count; 68 size_t pg_count;
62 size_t pg_bsize; 69 size_t pg_bsize;
63 unsigned int pg_base; 70 unsigned int pg_base;
64 char pg_moreio; 71 unsigned char pg_moreio : 1,
72 pg_recoalesce : 1;
65 73
66 struct inode *pg_inode; 74 struct inode *pg_inode;
67 int (*pg_doio)(struct nfs_pageio_descriptor *); 75 const struct nfs_pageio_ops *pg_ops;
68 int pg_ioflags; 76 int pg_ioflags;
69 int pg_error; 77 int pg_error;
78 const struct rpc_call_ops *pg_rpc_callops;
70 struct pnfs_layout_segment *pg_lseg; 79 struct pnfs_layout_segment *pg_lseg;
71 bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
72}; 80};
73 81
74#define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags)) 82#define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags))
@@ -85,7 +93,7 @@ extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst,
85 pgoff_t idx_start, unsigned int npages, int tag); 93 pgoff_t idx_start, unsigned int npages, int tag);
86extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc, 94extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
87 struct inode *inode, 95 struct inode *inode,
88 int (*doio)(struct nfs_pageio_descriptor *desc), 96 const struct nfs_pageio_ops *pg_ops,
89 size_t bsize, 97 size_t bsize,
90 int how); 98 int how);
91extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *, 99extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *,
@@ -100,7 +108,6 @@ extern void nfs_unlock_request(struct nfs_page *req);
100extern int nfs_set_page_tag_locked(struct nfs_page *req); 108extern int nfs_set_page_tag_locked(struct nfs_page *req);
101extern void nfs_clear_page_tag_locked(struct nfs_page *req); 109extern void nfs_clear_page_tag_locked(struct nfs_page *req);
102 110
103
104/* 111/*
105 * Lock the page of an asynchronous request without getting a new reference 112 * Lock the page of an asynchronous request without getting a new reference
106 */ 113 */