From: David Howells <dhowells@redhat.com>
Date: Wed, 4 Apr 2018 12:41:25 +0000 (+0100)
Subject: afs: Invalidate cache on server data change
X-Git-Tag: v4.17-rc1~90^2~11
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c1515999bdf9a91a4b7c82623a068ffe770a17b9;p=users%2Fhch%2Fmisc.git

afs: Invalidate cache on server data change

Invalidate any data stored in fscache for a vnode that changes on the
server so that we don't end up with the cache in a bad state locally.

Signed-off-by: David Howells <dhowells@redhat.com>
---

diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 6b39d0255b72..42f83fd5a896 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -343,6 +343,10 @@ void afs_zap_data(struct afs_vnode *vnode)
 {
 	_enter("{%x:%u}", vnode->fid.vid, vnode->fid.vnode);
 
+#ifdef CONFIG_AFS_FSCACHE
+	fscache_invalidate(vnode->cache);
+#endif
+
 	/* nuke all the non-dirty pages that aren't locked, mapped or being
 	 * written back in a regular file and completely discard the pages in a
 	 * directory or symlink */