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ZVOL: Unify zvol minors operations and improve error handling

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Now zvol minors creation logic is passed thru spa_zvol_taskq, like it
is doing for remove/rename zvol minors functions. Appropriate
zvol minors creation functions are refactored:
- The zvol_create_minor()/zvol_minors_create_recursive() were removed.
- The single zvol_create_minors() is added instead.

Also, it become possible to collect zvol minors subtasks status, to
detect, if some zvol minor subtask is failed in the subtasks chain.
The appropriate message is reported to zfs_dbgmsg buffer in this case.

Sponsored-by: vStack, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes #17575
This commit is contained in:
Fedor Uporov
2025-08-06 17:10:52 +03:00
committed by GitHub
parent 0f8a1105ee
commit 0b6fd024a7
12 changed files with 265 additions and 180 deletions
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module/zfs/dsl_dataset.c
+2 -2
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@@ -2005,7 +2005,7 @@ dsl_dataset_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t *errors)
if (error == 0) {
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
pair = nvlist_next_nvpair(snaps, pair)) {
zvol_create_minor(nvpair_name(pair));
zvol_create_minors(nvpair_name(pair));
}
}
@@ -3413,7 +3413,7 @@ dsl_dataset_clone(const char *clone, const char *origin)
6, ZFS_SPACE_CHECK_NORMAL);
if (rv == 0)
zvol_create_minor(clone);
zvol_create_minors(clone);
crfree(cr);