diff options
author | mav <mav@FreeBSD.org> | 2016-03-20 20:31:30 +0000 |
---|---|---|
committer | mav <mav@FreeBSD.org> | 2016-03-20 20:31:30 +0000 |
commit | 1beb94523f33f7fc09d572d4cd0c38d00c12b9c8 (patch) | |
tree | 7ec980b36a548359cede91d0c37af6ebeeecc3a3 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c | |
parent | ca01d985f9cae346664d14127fa50005f3ad223a (diff) | |
download | FreeBSD-src-1beb94523f33f7fc09d572d4cd0c38d00c12b9c8.zip FreeBSD-src-1beb94523f33f7fc09d572d4cd0c38d00c12b9c8.tar.gz |
MFC r262990: MFV r262983:
4638 Panic in ZFS via rfs3_setattr()/rfs3_write(): dirtying snapshot!
illumos/illumos-gate@2144b121c08e0eb676cc6ca4662ebbc9f9c22fe3
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c index 4f6b4bf..91eebb1 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c +++ b/sys/cddl/contrib/opensolaris/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) 2012, 2015 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 */ @@ -894,6 +894,16 @@ 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)) || @@ -5176,6 +5186,16 @@ 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); |