Illumos 3897 - zfs filesystem and snapshot limits

3897 zfs filesystem and snapshot limits
Author: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Christopher Siden <christopher.siden@delphix.com>

References:
  https://www.illumos.org/issues/3897
  https://github.com/illumos/illumos-gate/commit/a2afb61

Porting Notes:

dsl_dataset_snapshot_check(): reduce stack usage using kmem_alloc().

Ported-by: Chris Dunlop <chris@onthe.net.au>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Jerry Jelinek
2015-04-02 00:07:48 +11:00
committed by Brian Behlendorf
parent 308a451f7f
commit 788eb90c4c
19 changed files with 1021 additions and 27 deletions
+10 -1
View File
@@ -22,6 +22,7 @@
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2014 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
* Copyright (c) 2013, Joyent, Inc. All rights reserved.
*/
/* Portions Copyright 2010 Robert Milkowski */
@@ -780,9 +781,11 @@ dmu_objset_create_check(void *arg, dmu_tx_t *tx)
dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EEXIST));
}
error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
doca->doca_cred);
dsl_dir_rele(pdd, FTAG);
return (0);
return (error);
}
static void
@@ -866,6 +869,12 @@ dmu_objset_clone_check(void *arg, dmu_tx_t *tx)
dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EXDEV));
}
error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
doca->doca_cred);
if (error != 0) {
dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EDQUOT));
}
dsl_dir_rele(pdd, FTAG);
error = dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin);