diff options
Diffstat (limited to 'module/zfs/zfs_vnops.c')
| -rw-r--r-- | module/zfs/zfs_vnops.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c index 7344c9a80..b55445e0a 100644 --- a/module/zfs/zfs_vnops.c +++ b/module/zfs/zfs_vnops.c @@ -18,11 +18,12 @@ * * CDDL HEADER END */ + /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012, 2015 by Delphix. All rights reserved. - * Copyright 2014 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2015 by Chunwei Chen. All rights reserved. + * Copyright 2017 Nexenta Systems, Inc. */ /* Portions Copyright 2007 Jeremy Teo */ @@ -1157,7 +1158,15 @@ zfs_lookup(struct inode *dip, char *nm, struct inode **ipp, int flags, zfs_sb_t *zsb = ITOZSB(dip); int error = 0; - /* fast path */ + /* + * Fast path lookup, however we must skip DNLC lookup + * for case folding or normalizing lookups because the + * DNLC code only stores the passed in name. This means + * creating 'a' and removing 'A' on a case insensitive + * file system would work, but DNLC still thinks 'a' + * exists and won't let you create it again on the next + * pass through fast path. + */ if (!(flags & (LOOKUP_XATTR | FIGNORECASE))) { if (!S_ISDIR(dip->i_mode)) { @@ -1175,7 +1184,9 @@ zfs_lookup(struct inode *dip, char *nm, struct inode **ipp, int flags, } return (error); #ifdef HAVE_DNLC - } else { + } else if (!zdp->z_zfsvfs->z_norm && + (zdp->z_zfsvfs->z_case == ZFS_CASE_SENSITIVE)) { + vnode_t *tvp = dnlc_lookup(dvp, nm); if (tvp) { |