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changelist should be able to iter on mounts

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Modified changelist_gather()ing for the mountpoint property.
Now instead of iterating on all dataset descendants, we read
/proc/self/mounts and iterate on the mounted descendant datasets only.

Switched changelist implementation from a uu_list_* to uu_avl_* in
order to  reduce changlist code-path's worst case time complexity.

Reviewed by: Don Brady <don.brady@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alek Pinchuk <apinchuk@datto.com>
Closes #7967
This commit is contained in:
Alek P
2018-10-02 15:30:58 -04:00
committed by Brian Behlendorf
parent 838bd5ff35
commit 0c6d09361d
6 changed files with 366 additions and 68 deletions
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include/libzfs.h
+2 -1
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@@ -26,8 +26,8 @@
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2016, Intel Corporation.
* Copyright 2016 Nexenta Systems, Inc.
* Copyright (c) 2017 Datto Inc.
* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
* Copyright (c) 2018 Datto Inc.
*/
#ifndef _LIBZFS_H
@@ -621,6 +621,7 @@ extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *);
extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *);
extern int zfs_iter_mounted(zfs_handle_t *, zfs_iter_f, void *);
typedef struct get_all_cb {
zfs_handle_t **cb_handles;