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OpenZFS 9235 - rename zpool_rewind_policy_t to zpool_load_policy_t

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We want to be able to pass various settings during import/open of a
pool, which are not only related to rewind. Instead of adding a new
policy and duplicate a bunch of code, we should just rename
rewind_policy to a more generic term like load_policy.

For instance, we'd like to set spa->spa_import_flags from the nvlist,
rather from a flags parameter passed to spa_import as in some cases we
want those flags not only for the import case, but also for the open
case. One such flag could be ZFS_IMPORT_MISSING_LOG (as used in zdb)
which would allow zfs to open a pool when logs are missing.

Authored by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Matt Ahrens <matt@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://illumos.org/issues/9235
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d2b1e44
Closes #7532
This commit is contained in:
Pavel Zakharov
2017-02-10 17:51:09 -05:00
committed by Brian Behlendorf
parent 85912983a4
commit 8a393be353
9 changed files with 85 additions and 84 deletions
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cmd/zpool/zpool_main.c
+7 -4
View File
@@ -2667,8 +2667,9 @@ zpool_do_import(int argc, char **argv)
/* In the future, we can capture further policy and include it here */
if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, txg) != 0 ||
nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, txg) != 0 ||
nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY,
rewind_policy) != 0)
goto error;
/* check argument count */
@@ -2819,7 +2820,7 @@ zpool_do_import(int argc, char **argv)
if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
continue;
verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY,
verify(nvlist_add_nvlist(config, ZPOOL_LOAD_POLICY,
policy) == 0);
if (argc == 0) {
@@ -5878,8 +5879,10 @@ zpool_do_clear(int argc, char **argv)
/* In future, further rewind policy choices can be passed along here */
if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY,
rewind_policy) != 0) {
return (1);
}
pool = argv[0];
device = argc == 2 ? argv[1] : NULL;