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Illumos #3829

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3829 fix for 3740 changed behavior of zfs destroy/hold/release ioctl
Reviewed by: Matt Amdur <matt.amdur@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

References:
  https://www.illumos.org/issues/3829
  illumos/illumos-gate@bb6e70758d

Ported-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1775
This commit is contained in:
Matthew Ahrens
2013-06-20 14:43:17 -08:00
committed by Brian Behlendorf
parent 34ffbed88c
commit 1a077756e8
4 changed files with 25 additions and 36 deletions
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lib/libzfs_core/libzfs_core.c
+6 -17
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@@ -255,11 +255,8 @@ lzc_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t **errlist)
* marked for deferred destruction, and will be destroyed when the last hold
* or clone is removed/destroyed.
*
* The return value will be ENOENT if none of the snapshots existed.
*
* The return value will be 0 if all snapshots were destroyed (or marked for
* later destruction if 'defer' is set) or didn't exist to begin with and
* at least one snapshot was destroyed.
* later destruction if 'defer' is set) or didn't exist to begin with.
*
* Otherwise the return value will be the errno of a (unspecified) snapshot
* that failed, no snapshots will be destroyed, and the errlist will have an
@@ -350,15 +347,10 @@ lzc_exists(const char *dataset)
* or imported.
*
* Holds for snapshots which don't exist will be skipped and have an entry
* added to errlist, but will not cause an overall failure, except in the
* case that all holds where skipped.
* added to errlist, but will not cause an overall failure.
*
* The return value will be ENOENT if none of the snapshots for the requested
* holds existed.
*
* The return value will be 0 if the nvl holds was empty or all holds, for
* snapshots that existed, were succesfully created and at least one hold
* was created.
* The return value will be 0 if all holds, for snapshots that existed,
* were succesfully created.
*
* Otherwise the return value will be the errno of a (unspecified) hold that
* failed and no holds will be created.
@@ -402,13 +394,10 @@ lzc_hold(nvlist_t *holds, int cleanup_fd, nvlist_t **errlist)
* The value is a nvlist whose keys are the holds to remove.
*
* Holds which failed to release because they didn't exist will have an entry
* added to errlist, but will not cause an overall failure, except in the
* case that all releases where skipped.
*
* The return value will be ENOENT if none of the specified holds existed.
* added to errlist, but will not cause an overall failure.
*
* The return value will be 0 if the nvl holds was empty or all holds that
* existed, were successfully removed and at least one hold was removed.
* existed, were successfully removed.
*
* Otherwise the return value will be the errno of a (unspecified) hold that
* failed to release and no holds will be released.