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Code Issues Releases Activity

4638 Panic in ZFS via rfs3_setattr()/rfs3_write(): dirtying snapshot!

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illumos/illumos-gate@2144b121c0
This commit is contained in:
Xin LI 2014-03-10 21:37:07 +00:00
parent 6ae71ff4db
commit 4d386a222c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor-sys/illumos/dist/; revision=262983
1 changed files with 21 additions and 1 deletions
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22
uts/common/fs/zfs/zfs_vnops.c
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@ -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 */
@ -643,6 +643,16 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct)
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
&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
*/
@ -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);