pnfs: add return_range method

[firefly-linux-kernel-4.4.55.git] / fs / nfs / pnfs.h

diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index a4c530e52149432a00f08eae69579e74b3641f0f..2c2494225930fd430c89044ac20534a5cffcb053 100644 (file)
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -94,6 +94,9 @@ struct pnfs_layoutdriver_type {
        struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr, gfp_t gfp_flags);
        void (*free_lseg) (struct pnfs_layout_segment *lseg);
 
+       void (*return_range) (struct pnfs_layout_hdr *lo,
+                             struct pnfs_layout_range *range);
+
        /* test for nfs page cache coalescing */
        const struct nfs_pageio_ops *pg_read_ops;
        const struct nfs_pageio_ops *pg_write_ops;