diff options
author | Xin LI <delphij@FreeBSD.org> | 2014-03-10 21:37:07 +0000 |
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committer | Xin LI <delphij@FreeBSD.org> | 2014-03-10 21:37:07 +0000 |
commit | 4d386a222c27084b5ddaf13d2b9dd7f879038525 (patch) | |
tree | 086419f6d173728c244bbb4be3177e7358bd480f /uts | |
parent | 6ae71ff4dbd0820eaa831169444be9e6c8814fe2 (diff) | |
download | src-4d386a222c27084b5ddaf13d2b9dd7f879038525.tar.gz src-4d386a222c27084b5ddaf13d2b9dd7f879038525.zip |
Notes
Diffstat (limited to 'uts')
-rw-r--r-- | uts/common/fs/zfs/zfs_vnops.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/uts/common/fs/zfs/zfs_vnops.c b/uts/common/fs/zfs/zfs_vnops.c index 6b5c6f852cc2..767d3f765d07 100644 --- a/uts/common/fs/zfs/zfs_vnops.c +++ b/uts/common/fs/zfs/zfs_vnops.c @@ -21,7 +21,7 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2013 by Delphix. All rights reserved. - * Copyright 2013 Nexenta Systems, Inc. All rights reserved. + * Copyright 2014 Nexenta Systems, Inc. All rights reserved. */ /* Portions Copyright 2007 Jeremy Teo */ @@ -644,6 +644,16 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) &zp->z_pflags, 8); /* + * In a case vp->v_vfsp != zp->z_zfsvfs->z_vfs (e.g. snapshots) our + * callers might not be able to detect properly that we are read-only, + * so check it explicitly here. + */ + if (zfsvfs->z_vfs->vfs_flag & VFS_RDONLY) { + ZFS_EXIT(zfsvfs); + return (SET_ERROR(EROFS)); + } + + /* * If immutable or not appending then return EPERM */ if ((zp->z_pflags & (ZFS_IMMUTABLE | ZFS_READONLY)) || @@ -4750,6 +4760,16 @@ zfs_space(vnode_t *vp, int cmd, flock64_t *bfp, int flag, return (SET_ERROR(EINVAL)); } + /* + * In a case vp->v_vfsp != zp->z_zfsvfs->z_vfs (e.g. snapshots) our + * callers might not be able to detect properly that we are read-only, + * so check it explicitly here. + */ + if (zfsvfs->z_vfs->vfs_flag & VFS_RDONLY) { + ZFS_EXIT(zfsvfs); + return (SET_ERROR(EROFS)); + } + if (error = convoff(vp, bfp, 0, offset)) { ZFS_EXIT(zfsvfs); return (error); |