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Implemented zpool sync command

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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.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Alek Pinchuk <apinchuk@datto.com>
Closes #6122
This commit is contained in:
Alek P
2017-05-19 12:33:11 -07:00
committed by Brian Behlendorf
parent 4a283c7f77
commit bec1067d54
20 changed files with 396 additions and 69 deletions
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lib/libzfs/libzfs_pool.c
+22
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@@ -24,6 +24,7 @@
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2014 by Delphix. All rights reserved.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
* Copyright (c) 2017 Datto Inc.
*/
#include <ctype.h>
@@ -3288,6 +3289,27 @@ 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);
}
#if defined(__sun__) || defined(__sun)
/*
* Convert from a devid string to a path.