From d233c7dd1682437ba4b430b04766aa6eef9aef67 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 3 Dec 2018 10:14:43 +0100 Subject: fuse: fix revalidation of attributes for permission check fuse_invalidate_attr() now sets fi->inval_mask instead of fi->i_time, hence we need to check the inval mask in fuse_permission() as well. Signed-off-by: Miklos Szeredi Fixes: 2f1e81965fd0 ("fuse: allow fine grained attr cache invaldation") --- fs/fuse/dir.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 56931dfdcc46..dc4e83d8ace7 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1119,8 +1119,10 @@ static int fuse_permission(struct inode *inode, int mask) if (fc->default_permissions || ((mask & MAY_EXEC) && S_ISREG(inode->i_mode))) { struct fuse_inode *fi = get_fuse_inode(inode); + u32 perm_mask = STATX_MODE | STATX_UID | STATX_GID; - if (time_before64(fi->i_time, get_jiffies_64())) { + if (perm_mask & READ_ONCE(fi->inval_mask) || + time_before64(fi->i_time, get_jiffies_64())) { refreshed = true; err = fuse_perm_getattr(inode, mask); -- cgit v1.2.3