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authorJeff Layton <jlayton@poochiereds.net>2015-11-25 13:50:11 -0500
committerJiri Slaby <jslaby@suse.cz>2016-01-05 17:48:50 +0100
commit64591d53df06e007c51f25ccdd5e8ed524b59196 (patch)
treed32f7b90298d641708a64bb283588b02a59fa104 /fs
parent90251c0cb6abec49c2e8fe5ad57916214e4da81d (diff)
nfs: if we have no valid attrs, then don't declare the attribute cache valid
commit c812012f9ca7cf89c9e1a1cd512e6c3b5be04b85 upstream. If we pass in an empty nfs_fattr struct to nfs_update_inode, it will (correctly) not update any of the attributes, but it then clears the NFS_INO_INVALID_ATTR flag, which indicates that the attributes are up to date. Don't clear the flag if the fattr struct has no valid attrs to apply. Reviewed-by: Steve French <steve.french@primarydata.com> Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/inode.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 127a6d9d81b7..6f5457245a75 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1668,7 +1668,11 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
nfsi->attrtimeo_timestamp = now;
}
}
- invalid &= ~NFS_INO_INVALID_ATTR;
+
+ /* Don't declare attrcache up to date if there were no attrs! */
+ if (fattr->valid != 0)
+ invalid &= ~NFS_INO_INVALID_ATTR;
+
/* Don't invalidate the data if we were to blame */
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
|| S_ISLNK(inode->i_mode)))