Re: [PATCH 5/4] cifs: Fix missing fscache invalidation

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A network filesystem needs to implement a netfslib hook to invalidate
fscache if it's to be able to use the cache.

Fix cifs to implement the cache invalidation hook.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Steve French <sfrench@xxxxxxxxx>
cc: Paulo Alcantara <pc@xxxxxxxxxxxxx>
cc: Jeff Layton <jlayton@xxxxxxxxxx>
cc: linux-cifs@xxxxxxxxxxxxxxx
cc: netfs@xxxxxxxxxxxxxxx
cc: linux-fsdevel@xxxxxxxxxxxxxxx
Fixes: 3ee1a1fc3981 ("cifs: Cut over to using netfslib")
---
 fs/smb/client/file.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index f8d6ad88335e..b2405dd4d4d4 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -133,6 +133,11 @@ static void cifs_issue_write(struct netfs_io_subrequest *subreq)
 	goto out;
 }
 
+static void cifs_netfs_invalidate_cache(struct netfs_io_request *wreq)
+{
+	cifs_invalidate_cache(wreq->inode, 0);
+}
+
 /*
  * Split the read up according to how many credits we can get for each piece.
  * It's okay to sleep here if we need to wait for more credit to become
@@ -337,6 +342,7 @@ const struct netfs_request_ops cifs_req_ops = {
 	.begin_writeback	= cifs_begin_writeback,
 	.prepare_write		= cifs_prepare_write,
 	.issue_write		= cifs_issue_write,
+	.invalidate_cache	= cifs_netfs_invalidate_cache,
 };
 
 /*






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