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Message-ID: <614300.1719228243@warthog.procyon.org.uk>
Date: Mon, 24 Jun 2024 12:24:03 +0100
From: David Howells <dhowells@...hat.com>
To: Christian Brauner <christian@...uner.io>,
Matthew Wilcox <willy@...radead.org>
cc: dhowells@...hat.com, Jeff Layton <jlayton@...nel.org>,
netfs@...ts.linux.dev, v9fs@...ts.linux.dev,
linux-afs@...ts.infradead.org, linux-cifs@...r.kernel.org,
linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] netfs: Fix netfs_page_mkwrite() to flush conflicting data, not wait
Fix netfs_page_mkwrite() to use filemap_fdatawrite_range(), not
filemap_fdatawait_range() to flush conflicting data.
Fixes: 102a7e2c598c ("netfs: Allow buffered shared-writeable mmap through netfs_page_mkwrite()")
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Matthew Wilcox <willy@...radead.org>
cc: Jeff Layton <jlayton@...nel.org>
cc: netfs@...ts.linux.dev
cc: v9fs@...ts.linux.dev
cc: linux-afs@...ts.infradead.org
cc: linux-cifs@...r.kernel.org
cc: linux-mm@...ck.org
cc: linux-fsdevel@...r.kernel.org
---
fs/netfs/buffered_write.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c
index 05745bcc54c6..9cbbeeee6170 100644
--- a/fs/netfs/buffered_write.c
+++ b/fs/netfs/buffered_write.c
@@ -554,9 +554,9 @@ vm_fault_t netfs_page_mkwrite(struct vm_fault *vmf, struct netfs_group *netfs_gr
group = netfs_folio_group(folio);
if (group != netfs_group && group != NETFS_FOLIO_COPY_TO_CACHE) {
folio_unlock(folio);
- err = filemap_fdatawait_range(mapping,
- folio_pos(folio),
- folio_pos(folio) + folio_size(folio));
+ err = filemap_fdatawrite_range(mapping,
+ folio_pos(folio),
+ folio_pos(folio) + folio_size(folio));
switch (err) {
case 0:
ret = VM_FAULT_RETRY;
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