From: Jeff Layton Date: Fri, 7 Aug 2020 19:47:17 +0000 (-0400) Subject: ceph: make d_revalidate call fscrypt revalidator for encrypted dentries X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c526760181ca083dbd607d2e694b43080a8b1585;p=users%2Fjedix%2Flinux-maple.git ceph: make d_revalidate call fscrypt revalidator for encrypted dentries If we have a dentry which represents a no-key name, then we need to test whether the parent directory's encryption key has since been added. Do that before we test anything else about the dentry. Signed-off-by: Jeff Layton Reviewed-by: Xiubo Li Reviewed-and-tested-by: Luís Henriques Reviewed-by: Milind Changire Signed-off-by: Ilya Dryomov --- diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index cd2ca26e31597..9a03426975959 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1782,6 +1782,10 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags) struct inode *dir, *inode; struct ceph_mds_client *mdsc; + valid = fscrypt_d_revalidate(dentry, flags); + if (valid <= 0) + return valid; + if (flags & LOOKUP_RCU) { parent = READ_ONCE(dentry->d_parent); dir = d_inode_rcu(parent); @@ -1794,8 +1798,9 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags) inode = d_inode(dentry); } - dout("d_revalidate %p '%pd' inode %p offset 0x%llx\n", dentry, - dentry, inode, ceph_dentry(dentry)->offset); + dout("d_revalidate %p '%pd' inode %p offset 0x%llx nokey %d\n", dentry, + dentry, inode, ceph_dentry(dentry)->offset, + !!(dentry->d_flags & DCACHE_NOKEY_NAME)); mdsc = ceph_sb_to_client(dir->i_sb)->mdsc;