pnfs/blocklayout: return layouts on setattr

This speads up truncate-heavy workloads like fsx by multiple orders of
magnitude.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index d3c3c5c972c31c4a288ba963fc33bbc481e968f4..bdd73fbacf48f734db7e2c9731f4ac3f5593e3f7 100644 (file)
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -799,7 +799,8 @@ static struct pnfs_layoutdriver_type blocklayout_type = {
        .id                             = LAYOUT_BLOCK_VOLUME,
        .name                           = "LAYOUT_BLOCK_VOLUME",
        .owner                          = THIS_MODULE,
-       .flags                          = PNFS_READ_WHOLE_PAGE,
+       .flags                          = PNFS_LAYOUTRET_ON_SETATTR |
+                                         PNFS_READ_WHOLE_PAGE,
        .read_pagelist                  = bl_read_pagelist,
        .write_pagelist                 = bl_write_pagelist,
        .alloc_layout_hdr               = bl_alloc_layout_hdr,