NFS: Use pgoff_t in structures and functions that pass page cache offsets

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 096efd7..d846d39 100644 (file)
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -383,12 +383,12 @@ void nfs_pageio_complete(struct nfs_pageio_descriptor *desc)
  * You must be holding the inode's req_lock when calling this function
  */
 int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *head,
-               struct list_head *dst, unsigned long idx_start,
+               struct list_head *dst, pgoff_t idx_start,
                unsigned int npages)
 {
        struct nfs_page *pgvec[NFS_SCAN_MAXENTRIES];
        struct nfs_page *req;
-       unsigned long idx_end;
+       pgoff_t idx_end;
        int found, i;
        int res;
 

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 424c4ce..5d44b8b 100644 (file)
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -139,7 +139,7 @@ static void nfs_grow_file(struct page *page, unsigned int offset, unsigned int c
 {
        struct inode *inode = page->mapping->host;
        loff_t end, i_size = i_size_read(inode);
-       unsigned long end_index = (i_size - 1) >> PAGE_CACHE_SHIFT;
+       pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT;
 
        if (i_size > 0 && page->index < end_index)
                return;
@@ -511,11 +511,11 @@ int nfs_reschedule_unstable_write(struct nfs_page *req)
  *
  * Interruptible by signals only if mounted with intr flag.
  */
-static int nfs_wait_on_requests_locked(struct inode *inode, unsigned long idx_start, unsigned int npages)
+static int nfs_wait_on_requests_locked(struct inode *inode, pgoff_t idx_start, unsigned int npages)
 {
        struct nfs_inode *nfsi = NFS_I(inode);
        struct nfs_page *req;
-       unsigned long           idx_end, next;
+       pgoff_t idx_end, next;
        unsigned int            res = 0;
        int                     error;
 
@@ -570,7 +570,7 @@ static void nfs_cancel_commit_list(struct list_head *head)
  * The requests are *not* checked to ensure that they form a contiguous set.
  */
 static int
-nfs_scan_commit(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
+nfs_scan_commit(struct inode *inode, struct list_head *dst, pgoff_t idx_start, unsigned int npages)
 {
        struct nfs_inode *nfsi = NFS_I(inode);
        int res = 0;
@@ -584,7 +584,7 @@ nfs_scan_commit(struct inode *inode, struct list_head *dst, unsigned long idx_st
        return res;
 }
 #else
-static inline int nfs_scan_commit(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
+static inline int nfs_scan_commit(struct inode *inode, struct list_head *dst, pgoff_t idx_start, unsigned int npages)
 {
        return 0;
 }
@@ -604,7 +604,7 @@ static struct nfs_page * nfs_update_request(struct nfs_open_context* ctx,
        struct inode *inode = mapping->host;
        struct nfs_inode *nfsi = NFS_I(inode);
        struct nfs_page         *req, *new = NULL;
-       unsigned long           rqend, end;
+       pgoff_t         rqend, end;
 
        end = offset + bytes;
 
@@ -1292,7 +1292,7 @@ long nfs_sync_mapping_wait(struct address_space *mapping, struct writeback_contr
 {
        struct inode *inode = mapping->host;
        struct nfs_inode *nfsi = NFS_I(inode);
-       unsigned long idx_start, idx_end;
+       pgoff_t idx_start, idx_end;
        unsigned int npages = 0;
        LIST_HEAD(head);
        int nocommit = how & FLUSH_NOCOMMIT;
@@ -1305,10 +1305,10 @@ long nfs_sync_mapping_wait(struct address_space *mapping, struct writeback_contr
                idx_start = wbc->range_start >> PAGE_CACHE_SHIFT;
                idx_end = wbc->range_end >> PAGE_CACHE_SHIFT;
                if (idx_end > idx_start) {
-                       unsigned long l_npages = 1 + idx_end - idx_start;
+                       pgoff_t l_npages = 1 + idx_end - idx_start;
                        npages = l_npages;
                        if (sizeof(npages) != sizeof(l_npages) &&
-                                       (unsigned long)npages != l_npages)
+                                       (pgoff_t)npages != l_npages)
                                npages = 0;
                }
        }

diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 8e9e7bc..41afab6 100644 (file)
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -38,7 +38,7 @@ struct nfs_page {
        struct page             *wb_page;       /* page to read in/write out */
        struct nfs_open_context *wb_context;    /* File state context info */
        atomic_t                wb_complete;    /* i/os we're waiting for */
-       unsigned long           wb_index;       /* Offset >> PAGE_CACHE_SHIFT */
+       pgoff_t                 wb_index;       /* Offset >> PAGE_CACHE_SHIFT */
        unsigned int            wb_offset,      /* Offset & ~PAGE_CACHE_MASK */
                                wb_pgbase,      /* Start of page data */
                                wb_bytes;       /* Length of request */
@@ -72,7 +72,7 @@ extern        void nfs_release_request(struct nfs_page *req);
 
 
 extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *head, struct list_head *dst,
-                         unsigned long idx_start, unsigned int npages);
+                         pgoff_t 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 *, unsigned int, size_t, int),