svn commit: r355283 - in stable/12: cddl/contrib/opensolaris/cmd/zpool cddl/contrib/opensolaris/lib/libzfs/common cddl/contrib/opensolaris/lib/libzfs_core/common sys/cddl/contrib/opensolaris/uts/co...
Andriy Gapon
avg at FreeBSD.org
Mon Dec 2 07:39:57 UTC 2019
Author: avg
Date: Mon Dec 2 07:39:55 2019
New Revision: 355283
URL: https://svnweb.freebsd.org/changeset/base/355283
Log:
MFC r354436: MFV r354377: 10554 Implemented zpool sync command
This addition will enable us to sync an open TXG to the main pool on
demand. The functionality is similar to sync(2) but 'zpool sync' will
return when data has hit the main storage instead of potentially just
the ZIL as is the case with the sync(2) cmd.
Modified:
stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool.8
stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c
stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c
stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h
stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
stable/12/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool.8
==============================================================================
--- stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool.8 Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool.8 Mon Dec 2 07:39:55 2019 (r355283)
@@ -193,6 +193,9 @@
.Ar ...
.Op Ar interval Op Ar count
.Nm
+.Cm sync
+.Oo Ar pool Oc Ns ...
+.Nm
.Cm upgrade
.Op Fl v
.Nm
@@ -1907,6 +1910,19 @@ unavailable.
Warnings about pools not using the latest on-disk format, having non-native
block size or disabled features will not be included.
.El
+.It Xo
+.Nm
+.Cm sync
+.Oo Ar pool Oc Ns ...
+.Xc
+Forces all in-core dirty data to be written to the primary pool storage and
+not the ZIL.
+It will also update administrative information including quota reporting.
+Without arguments,
+.Nm zpool Cm sync
+will sync all pools on the system.
+Otherwise, it will only sync the specified
+.Ar pool .
.It Xo
.Nm
.Cm upgrade
Modified: stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
==============================================================================
--- stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c Mon Dec 2 07:39:55 2019 (r355283)
@@ -100,6 +100,8 @@ static int zpool_do_history(int, char **);
static int zpool_do_get(int, char **);
static int zpool_do_set(int, char **);
+static int zpool_do_sync(int, char **);
+
/*
* These libumem hooks provide a reasonable set of defaults for the allocator's
* debugging facilities.
@@ -144,6 +146,7 @@ typedef enum {
HELP_GET,
HELP_SET,
HELP_SPLIT,
+ HELP_SYNC,
HELP_REGUID,
HELP_REOPEN
} zpool_help_t;
@@ -200,6 +203,7 @@ static zpool_command_t command_table[] = {
{ "history", zpool_do_history, HELP_HISTORY },
{ "get", zpool_do_get, HELP_GET },
{ "set", zpool_do_set, HELP_SET },
+ { "sync", zpool_do_sync, HELP_SYNC },
};
#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
@@ -285,6 +289,8 @@ get_usage(zpool_help_t idx)
"[<device> ...]\n"));
case HELP_REGUID:
return (gettext("\treguid <pool>\n"));
+ case HELP_SYNC:
+ return (gettext("\tsync [pool] ...\n"));
}
abort();
@@ -2646,6 +2652,45 @@ error:
free(searchdirs);
return (err ? 1 : 0);
+}
+
+/*
+ * zpool sync [-f] [pool] ...
+ *
+ * -f (undocumented) force uberblock (and config including zpool cache file)
+ * update.
+ *
+ * Sync the specified pool(s).
+ * Without arguments "zpool sync" will sync all pools.
+ * This command initiates TXG sync(s) and will return after the TXG(s) commit.
+ *
+ */
+static int
+zpool_do_sync(int argc, char **argv)
+{
+ int ret;
+ boolean_t force = B_FALSE;
+
+ /* check options */
+ while ((ret = getopt(argc, argv, "f")) != -1) {
+ switch (ret) {
+ case 'f':
+ force = B_TRUE;
+ break;
+ case '?':
+ (void) fprintf(stderr, gettext("invalid option '%c'\n"),
+ optopt);
+ usage(B_FALSE);
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ /* if argc == 0 we will execute zpool_sync_one on all pools */
+ ret = for_each_pool(argc, argv, B_FALSE, NULL, zpool_sync_one, &force);
+
+ return (ret);
}
typedef struct iostat_cbdata {
Modified: stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
==============================================================================
--- stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h Mon Dec 2 07:39:55 2019 (r355283)
@@ -271,6 +271,8 @@ extern int zpool_clear(zpool_handle_t *, const char *,
extern int zpool_reguid(zpool_handle_t *);
extern int zpool_reopen(zpool_handle_t *);
+extern int zpool_sync_one(zpool_handle_t *, void *);
+
extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
vdev_state_t *);
extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
Modified: stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c
==============================================================================
--- stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c Mon Dec 2 07:39:55 2019 (r355283)
@@ -3515,6 +3515,27 @@ zpool_reopen(zpool_handle_t *zhp)
return (zpool_standard_error(hdl, errno, msg));
}
+/* call into libzfs_core to execute the sync IOCTL per pool */
+int
+zpool_sync_one(zpool_handle_t *zhp, void *data)
+{
+ int ret;
+ libzfs_handle_t *hdl = zpool_get_handle(zhp);
+ const char *pool_name = zpool_get_name(zhp);
+ boolean_t *force = data;
+ nvlist_t *innvl = fnvlist_alloc();
+
+ fnvlist_add_boolean_value(innvl, "force", *force);
+ if ((ret = lzc_sync(pool_name, innvl, NULL)) != 0) {
+ nvlist_free(innvl);
+ return (zpool_standard_error_fmt(hdl, ret,
+ dgettext(TEXT_DOMAIN, "sync '%s' failed"), pool_name));
+ }
+ nvlist_free(innvl);
+
+ return (0);
+}
+
/*
* Convert from a devid string to a path.
*/
Modified: stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c
==============================================================================
--- stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c Mon Dec 2 07:39:55 2019 (r355283)
@@ -24,6 +24,7 @@
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2014 Integros [integros.com]
* Copyright 2017 RackTop Systems.
+ * Copyright (c) 2017 Datto Inc.
*/
/*
@@ -137,16 +138,17 @@ lzc_ioctl(zfs_ioc_t ioc, const char *name,
{
zfs_cmd_t zc = { 0 };
int error = 0;
- char *packed;
+ char *packed = NULL;
#ifdef __FreeBSD__
nvlist_t *oldsource;
#endif
- size_t size;
+ size_t size = 0;
ASSERT3S(g_refcount, >, 0);
VERIFY3S(g_fd, !=, -1);
- (void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));
+ if (name != NULL)
+ (void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));
#ifdef __FreeBSD__
if (zfs_ioctl_version == ZFS_IOCVER_UNDEF)
@@ -160,9 +162,11 @@ lzc_ioctl(zfs_ioc_t ioc, const char *name,
}
#endif
- packed = fnvlist_pack(source, &size);
- zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed;
- zc.zc_nvlist_src_size = size;
+ if (source != NULL) {
+ packed = fnvlist_pack(source, &size);
+ zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed;
+ zc.zc_nvlist_src_size = size;
+ }
if (resultp != NULL) {
*resultp = NULL;
@@ -463,6 +467,18 @@ lzc_exists(const char *dataset)
}
/*
+ * outnvl is unused.
+ * It was added to preserve the function signature in case it is
+ * needed in the future.
+ */
+/*ARGSUSED*/
+int
+lzc_sync(const char *pool_name, nvlist_t *innvl, nvlist_t **outnvl)
+{
+ return (lzc_ioctl(ZFS_IOC_POOL_SYNC, pool_name, innvl, NULL));
+}
+
+/*
* Create "user holds" on snapshots. If there is a hold on a snapshot,
* the snapshot can not be destroyed. (However, it can be marked for deletion
* by lzc_destroy_snaps(defer=B_TRUE).)
@@ -562,11 +578,7 @@ lzc_release(nvlist_t *holds, nvlist_t **errlist)
int
lzc_get_holds(const char *snapname, nvlist_t **holdsp)
{
- int error;
- nvlist_t *innvl = fnvlist_alloc();
- error = lzc_ioctl(ZFS_IOC_GET_HOLDS, snapname, innvl, holdsp);
- fnvlist_free(innvl);
- return (error);
+ return (lzc_ioctl(ZFS_IOC_GET_HOLDS, snapname, NULL, holdsp));
}
/*
Modified: stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h
==============================================================================
--- stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.h Mon Dec 2 07:39:55 2019 (r355283)
@@ -23,6 +23,7 @@
* Copyright (c) 2012, 2016 by Delphix. All rights reserved.
* Copyright (c) 2013 by Martin Matuska <mm at FreeBSD.org>. All rights reserved.
* Copyright 2017 RackTop Systems.
+ * Copyright (c) 2017 Datto Inc.
*/
#ifndef _LIBZFS_CORE_H
@@ -90,6 +91,8 @@ boolean_t lzc_exists(const char *);
int lzc_rollback(const char *, char *, int);
int lzc_rollback_to(const char *, const char *);
+
+int lzc_sync(const char *, nvlist_t *, nvlist_t **);
int lzc_rename(const char *, const char *);
int lzc_destroy(const char *);
Modified: stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
==============================================================================
--- stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Mon Dec 2 07:39:55 2019 (r355283)
@@ -5836,6 +5836,7 @@ zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_
static int
zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl)
{
+ ASSERT3P(args, ==, NULL);
return (dsl_dataset_get_holds(snapname, outnvl));
}
@@ -6134,6 +6135,44 @@ out:
return (error);
}
+/*
+ * Sync the currently open TXG to disk for the specified pool.
+ * This is somewhat similar to 'zfs_sync()'.
+ * For cases that do not result in error this ioctl will wait for
+ * the currently open TXG to commit before returning back to the caller.
+ *
+ * innvl: {
+ * "force" -> when true, force uberblock update even if there is no dirty data.
+ * In addition this will cause the vdev configuration to be written
+ * out including updating the zpool cache file. (boolean_t)
+ * }
+ *
+ * onvl is unused
+ */
+/* ARGSUSED */
+static int
+zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
+{
+ int err;
+ boolean_t force;
+ spa_t *spa;
+
+ if ((err = spa_open(pool, &spa, FTAG)) != 0)
+ return (err);
+
+ force = fnvlist_lookup_boolean_value(innvl, "force");
+ if (force) {
+ spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER);
+ vdev_config_dirty(spa->spa_root_vdev);
+ spa_config_exit(spa, SCL_CONFIG, FTAG);
+ }
+ txg_wait_synced(spa_get_dsl(spa), 0);
+
+ spa_close(spa, FTAG);
+
+ return (err);
+}
+
static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
static void
@@ -6323,6 +6362,10 @@ zfs_ioctl_init(void)
zfs_ioctl_register("initialize", ZFS_IOC_POOL_INITIALIZE,
zfs_ioc_pool_initialize, zfs_secpolicy_config, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
+
+ zfs_ioctl_register("sync", ZFS_IOC_POOL_SYNC,
+ zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME,
+ POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
/* IOCTLS that use the legacy function signature */
Modified: stable/12/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h
==============================================================================
--- stable/12/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h Mon Dec 2 07:22:01 2019 (r355282)
+++ stable/12/sys/cddl/contrib/opensolaris/uts/common/sys/fs/zfs.h Mon Dec 2 07:39:55 2019 (r355283)
@@ -1016,6 +1016,7 @@ typedef enum zfs_ioc {
ZFS_IOC_POOL_CHECKPOINT,
ZFS_IOC_POOL_DISCARD_CHECKPOINT,
ZFS_IOC_POOL_INITIALIZE,
+ ZFS_IOC_POOL_SYNC,
ZFS_IOC_LAST
} zfs_ioc_t;
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