Thread (20 messages) 20 messages, 4 authors, 2022-03-01
STALE1610d

[RFC PATCH 5/7] NFS: direct-io: convert to FOLL_PIN pages

From: John Hubbard <jhubbard@nvidia.com>
Date: 2022-02-25 08:50:53
Also in: linux-fsdevel, linux-mm, linux-xfs, lkml
Subsystem: filesystems (vfs and infrastructure), nfs, sunrpc, and lockd clients, the rest · Maintainers: Alexander Viro, Christian Brauner, Trond Myklebust, Anna Schumaker, Linus Torvalds

Now that Direct IO's core allocators invoke pin_user_pages_fast(), those
pages must free released via unpin_user_page(), instead of put_page().

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 fs/nfs/direct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index eabfdab543c8..2e0d399c5a5a 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -181,7 +181,7 @@ static void nfs_direct_release_pages(struct page **pages, unsigned int npages)
 {
 	unsigned int i;
 	for (i = 0; i < npages; i++)
-		put_page(pages[i]);
+		dio_w_unpin_user_page(pages[i]);
 }
 
 void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo,
-- 
2.35.1
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