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-rw-r--r--fs/smb/client/fscache.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/fs/smb/client/fscache.c b/fs/smb/client/fscache.c
index 1a895e6243..01424a5cdb 100644
--- a/fs/smb/client/fscache.c
+++ b/fs/smb/client/fscache.c
@@ -170,112 +170,3 @@ void cifs_fscache_release_inode_cookie(struct inode *inode)
cifsi->netfs.cache = NULL;
}
}
-
-/*
- * Fallback page reading interface.
- */
-static int fscache_fallback_read_page(struct inode *inode, struct page *page)
-{
- struct netfs_cache_resources cres;
- struct fscache_cookie *cookie = cifs_inode_cookie(inode);
- struct iov_iter iter;
- struct bio_vec bvec;
- int ret;
-
- memset(&cres, 0, sizeof(cres));
- bvec_set_page(&bvec, page, PAGE_SIZE, 0);
- iov_iter_bvec(&iter, ITER_DEST, &bvec, 1, PAGE_SIZE);
-
- ret = fscache_begin_read_operation(&cres, cookie);
- if (ret < 0)
- return ret;
-
- ret = fscache_read(&cres, page_offset(page), &iter, NETFS_READ_HOLE_FAIL,
- NULL, NULL);
- fscache_end_operation(&cres);
- return ret;
-}
-
-/*
- * Fallback page writing interface.
- */
-static int fscache_fallback_write_pages(struct inode *inode, loff_t start, size_t len,
- bool no_space_allocated_yet)
-{
- struct netfs_cache_resources cres;
- struct fscache_cookie *cookie = cifs_inode_cookie(inode);
- struct iov_iter iter;
- int ret;
-
- memset(&cres, 0, sizeof(cres));
- iov_iter_xarray(&iter, ITER_SOURCE, &inode->i_mapping->i_pages, start, len);
-
- ret = fscache_begin_write_operation(&cres, cookie);
- if (ret < 0)
- return ret;
-
- ret = cres.ops->prepare_write(&cres, &start, &len, len, i_size_read(inode),
- no_space_allocated_yet);
- if (ret == 0)
- ret = fscache_write(&cres, start, &iter, NULL, NULL);
- fscache_end_operation(&cres);
- return ret;
-}
-
-/*
- * Retrieve a page from FS-Cache
- */
-int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
-{
- int ret;
-
- cifs_dbg(FYI, "%s: (fsc:%p, p:%p, i:0x%p\n",
- __func__, cifs_inode_cookie(inode), page, inode);
-
- ret = fscache_fallback_read_page(inode, page);
- if (ret < 0)
- return ret;
-
- /* Read completed synchronously */
- SetPageUptodate(page);
- return 0;
-}
-
-void __cifs_readahead_to_fscache(struct inode *inode, loff_t pos, size_t len)
-{
- cifs_dbg(FYI, "%s: (fsc: %p, p: %llx, l: %zx, i: %p)\n",
- __func__, cifs_inode_cookie(inode), pos, len, inode);
-
- fscache_fallback_write_pages(inode, pos, len, true);
-}
-
-/*
- * Query the cache occupancy.
- */
-int __cifs_fscache_query_occupancy(struct inode *inode,
- pgoff_t first, unsigned int nr_pages,
- pgoff_t *_data_first,
- unsigned int *_data_nr_pages)
-{
- struct netfs_cache_resources cres;
- struct fscache_cookie *cookie = cifs_inode_cookie(inode);
- loff_t start, data_start;
- size_t len, data_len;
- int ret;
-
- ret = fscache_begin_read_operation(&cres, cookie);
- if (ret < 0)
- return ret;
-
- start = first * PAGE_SIZE;
- len = nr_pages * PAGE_SIZE;
- ret = cres.ops->query_occupancy(&cres, start, len, PAGE_SIZE,
- &data_start, &data_len);
- if (ret == 0) {
- *_data_first = data_start / PAGE_SIZE;
- *_data_nr_pages = len / PAGE_SIZE;
- }
-
- fscache_end_operation(&cres);
- return ret;
-}