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git://sourceware.org/git/lvm2.git
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lvconvert: move poll code in before refactoring
This commit has no impact on functionality. Code required to be visible outside lvconvert.c is just moved into new file lvconvert_poll.c and some calls are made non-static and declared in new header file lvconvert.h
This commit is contained in:
Ondrej Kozina
parent
a098aa419f
commit
5190f56605
@ -21,6 +21,7 @@ SOURCES =\
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formats.c \
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lvchange.c \
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lvconvert.c \
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lvconvert_poll.c \
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lvcreate.c \
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lvdisplay.c \
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lvextend.c \
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2005-2014 Red Hat, Inc. All rights reserved.
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* Copyright (C) 2005-2015 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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@ -15,6 +15,7 @@
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#include "tools.h"
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#include "polldaemon.h"
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#include "lv_alloc.h"
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#include "lvconvert_poll.h"
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struct lvconvert_params {
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int cache;
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@ -698,221 +699,25 @@ static int _read_params(struct cmd_context *cmd, int argc, char **argv,
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return 1;
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}
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static struct volume_group *_get_lvconvert_vg(struct cmd_context *cmd,
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const char *name,
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const char *uuid __attribute__((unused)))
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{
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dev_close_all();
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if (name && !strchr(name, '/'))
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return vg_read_for_update(cmd, name, NULL, 0);
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/* 'name' is the full LV name; must extract_vgname() */
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return vg_read_for_update(cmd, extract_vgname(cmd, name),
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NULL, 0);
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}
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static struct logical_volume *_get_lvconvert_lv(struct cmd_context *cmd __attribute__((unused)),
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struct volume_group *vg,
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const char *name,
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const char *uuid,
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uint64_t lv_type __attribute__((unused)))
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{
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struct logical_volume *lv = find_lv(vg, name);
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if (!lv || (uuid && strcmp(uuid, (char *)&lv->lvid)))
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return NULL;
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return lv;
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}
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static int _finish_lvconvert_mirror(struct cmd_context *cmd,
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struct volume_group *vg,
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struct logical_volume *lv,
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struct dm_list *lvs_changed __attribute__((unused)))
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{
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if (!lv_is_converting(lv))
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return 1;
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if (!collapse_mirrored_lv(lv)) {
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log_error("Failed to remove temporary sync layer.");
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return 0;
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}
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lv->status &= ~CONVERTING;
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if (!lv_update_and_reload(lv))
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return_0;
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log_print_unless_silent("Logical volume %s converted.", lv->name);
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return 1;
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}
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/* Swap lvid and LV names */
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static int _swap_lv_identifiers(struct cmd_context *cmd,
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struct logical_volume *a, struct logical_volume *b)
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{
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union lvid lvid;
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const char *name;
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lvid = a->lvid;
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a->lvid = b->lvid;
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b->lvid = lvid;
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name = a->name;
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a->name = b->name;
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if (!lv_rename_update(cmd, b, name, 0))
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return_0;
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return 1;
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}
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static void _move_lv_attributes(struct logical_volume *to, struct logical_volume *from)
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{
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/* Maybe move this code into _finish_thin_merge() */
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to->status = from->status; // FIXME maybe some masking ?
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to->alloc = from->alloc;
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to->profile = from->profile;
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to->read_ahead = from->read_ahead;
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to->major = from->major;
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to->minor = from->minor;
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to->timestamp = from->timestamp;
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to->hostname = from->hostname;
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/* Move tags */
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dm_list_init(&to->tags);
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dm_list_splice(&to->tags, &from->tags);
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/* Anything else to preserve? */
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}
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/* Finalise merging of lv into merge_lv */
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static int _finish_thin_merge(struct cmd_context *cmd,
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struct logical_volume *merge_lv,
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struct logical_volume *lv)
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{
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if (!_swap_lv_identifiers(cmd, merge_lv, lv)) {
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log_error("Failed to swap %s with merging %s.",
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lv->name, merge_lv->name);
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return 0;
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}
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/* Preserve origins' attributes */
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_move_lv_attributes(lv, merge_lv);
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/* Removed LV has to be visible */
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if (!lv_remove_single(cmd, merge_lv, DONT_PROMPT, 1))
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return_0;
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return 1;
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}
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static int _finish_lvconvert_merge(struct cmd_context *cmd,
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struct volume_group *vg,
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struct logical_volume *lv,
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struct dm_list *lvs_changed __attribute__((unused)))
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{
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struct lv_segment *snap_seg = find_snapshot(lv);
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if (!lv_is_merging_origin(lv)) {
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log_error("Logical volume %s has no merging snapshot.", lv->name);
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return 0;
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}
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log_print_unless_silent("Merge of snapshot into logical volume %s has finished.", lv->name);
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if (seg_is_thin_volume(snap_seg)) {
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clear_snapshot_merge(lv);
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if (!_finish_thin_merge(cmd, lv, snap_seg->lv))
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return_0;
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} else if (!lv_remove_single(cmd, snap_seg->cow, DONT_PROMPT, 0)) {
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log_error("Could not remove snapshot %s merged into %s.",
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snap_seg->cow->name, lv->name);
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return 0;
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}
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return 1;
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}
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static progress_t _poll_merge_progress(struct cmd_context *cmd,
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struct logical_volume *lv,
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const char *name __attribute__((unused)),
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struct daemon_parms *parms)
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{
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dm_percent_t percent = DM_PERCENT_0;
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if (!lv_is_merging_origin(lv) ||
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!lv_snapshot_percent(lv, &percent)) {
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log_error("%s: Failed query for merging percentage. Aborting merge.", lv->name);
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return PROGRESS_CHECK_FAILED;
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} else if (percent == DM_PERCENT_INVALID) {
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log_error("%s: Merging snapshot invalidated. Aborting merge.", lv->name);
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return PROGRESS_CHECK_FAILED;
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} else if (percent == LVM_PERCENT_MERGE_FAILED) {
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log_error("%s: Merge failed. Retry merge or inspect manually.", lv->name);
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return PROGRESS_CHECK_FAILED;
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}
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if (parms->progress_display)
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log_print_unless_silent("%s: %s: %.1f%%", lv->name, parms->progress_title,
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100.0 - dm_percent_to_float(percent));
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else
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log_verbose("%s: %s: %.1f%%", lv->name, parms->progress_title,
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100.0 - dm_percent_to_float(percent));
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if (percent == DM_PERCENT_0)
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return PROGRESS_FINISHED_ALL;
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return PROGRESS_UNFINISHED;
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}
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static progress_t _poll_thin_merge_progress(struct cmd_context *cmd,
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struct logical_volume *lv,
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const char *name __attribute__((unused)),
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struct daemon_parms *parms)
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{
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uint32_t device_id;
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if (!lv_thin_device_id(lv, &device_id)) {
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stack;
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return PROGRESS_CHECK_FAILED;
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}
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/*
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* There is no need to poll more than once,
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* a thin snapshot merge is immediate.
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*/
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if (device_id != find_snapshot(lv)->device_id) {
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log_error("LV %s is not merged.", lv->name);
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return PROGRESS_CHECK_FAILED;
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}
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return PROGRESS_FINISHED_ALL; /* Merging happend */
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}
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static struct poll_functions _lvconvert_mirror_fns = {
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.get_copy_vg = _get_lvconvert_vg,
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.get_copy_lv = _get_lvconvert_lv,
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.get_copy_vg = lvconvert_get_copy_vg,
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.get_copy_lv = lvconvert_get_copy_lv,
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.poll_progress = poll_mirror_progress,
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.finish_copy = _finish_lvconvert_mirror,
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.finish_copy = lvconvert_mirror_finish,
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};
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static struct poll_functions _lvconvert_merge_fns = {
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.get_copy_vg = _get_lvconvert_vg,
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.get_copy_lv = _get_lvconvert_lv,
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.poll_progress = _poll_merge_progress,
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.finish_copy = _finish_lvconvert_merge,
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.get_copy_vg = lvconvert_get_copy_vg,
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.get_copy_lv = lvconvert_get_copy_lv,
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.poll_progress = poll_merge_progress,
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.finish_copy = lvconvert_merge_finish,
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};
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static struct poll_functions _lvconvert_thin_merge_fns = {
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.get_copy_vg = _get_lvconvert_vg,
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.get_copy_lv = _get_lvconvert_lv,
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.poll_progress = _poll_thin_merge_progress,
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.finish_copy = _finish_lvconvert_merge,
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.get_copy_vg = lvconvert_get_copy_vg,
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.get_copy_lv = lvconvert_get_copy_lv,
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.poll_progress = poll_thin_merge_progress,
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.finish_copy = lvconvert_merge_finish,
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};
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int lvconvert_poll(struct cmd_context *cmd, struct logical_volume *lv,
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@ -2421,7 +2226,7 @@ static int _lvconvert_merge_thin_snapshot(struct cmd_context *cmd,
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* Both thin snapshot and origin are inactive,
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* replace the origin LV with its snapshot LV.
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*/
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if (!_finish_thin_merge(cmd, origin, lv))
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if (!thin_merge_finish(cmd, origin, lv))
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goto_out;
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if (origin_is_active && !activate_lv(cmd, lv)) {
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@ -2626,7 +2431,7 @@ deactivate_pmslv:
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if (!detach_pool_metadata_lv(first_seg(pool_lv), &mlv))
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return_0;
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if (!_swap_lv_identifiers(cmd, mlv, pmslv))
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if (!swap_lv_identifiers(cmd, mlv, pmslv))
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return_0;
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/* Used _pmspare will become _tmeta */
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@ -2718,7 +2523,7 @@ static int _lvconvert_thin(struct cmd_context *cmd,
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* which could be easily removed by the user after i.e. power-off
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*/
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if (!_swap_lv_identifiers(cmd, torigin_lv, lv)) {
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if (!swap_lv_identifiers(cmd, torigin_lv, lv)) {
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stack;
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goto revert_new_lv;
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}
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@ -2744,7 +2549,7 @@ static int _lvconvert_thin(struct cmd_context *cmd,
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return 1;
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deactivate_and_revert_new_lv:
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if (!_swap_lv_identifiers(cmd, torigin_lv, lv))
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if (!swap_lv_identifiers(cmd, torigin_lv, lv))
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stack;
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if (!deactivate_lv(cmd, torigin_lv)) {
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@ -3414,13 +3219,13 @@ static struct logical_volume *get_vg_lock_and_logical_volume(struct cmd_context
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struct volume_group *vg;
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struct logical_volume* lv = NULL;
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vg = _get_lvconvert_vg(cmd, vg_name, NULL);
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vg = lvconvert_get_copy_vg(cmd, vg_name, NULL);
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if (vg_read_error(vg)) {
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release_vg(vg);
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return_NULL;
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}
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if (!(lv = _get_lvconvert_lv(cmd, vg, lv_name, NULL, 0))) {
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if (!(lv = lvconvert_get_copy_lv(cmd, vg, lv_name, NULL, 0))) {
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log_error("Can't find LV %s in VG %s", lv_name, vg_name);
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unlock_and_release_vg(cmd, vg, vg_name);
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return NULL;
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213
tools/lvconvert_poll.c
Normal file
213
tools/lvconvert_poll.c
Normal file
@ -0,0 +1,213 @@
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/*
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* Copyright (C) 2015 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "libdevmapper.h"
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#include "lvconvert_poll.h"
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#include "tools.h"
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struct volume_group *lvconvert_get_copy_vg(struct cmd_context *cmd,
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const char *name,
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const char *uuid __attribute__((unused)))
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{
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dev_close_all();
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if (name && !strchr(name, '/'))
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return vg_read_for_update(cmd, name, NULL, 0);
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/* 'name' is the full LV name; must extract_vgname() */
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return vg_read_for_update(cmd, extract_vgname(cmd, name),
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NULL, 0);
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}
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struct logical_volume *lvconvert_get_copy_lv(struct cmd_context *cmd __attribute__((unused)),
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struct volume_group *vg,
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const char *name,
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const char *uuid,
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uint64_t lv_type __attribute__((unused)))
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{
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struct logical_volume *lv = find_lv(vg, name);
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if (!lv || (uuid && strcmp(uuid, (char *)&lv->lvid)))
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return NULL;
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return lv;
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}
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int lvconvert_mirror_finish(struct cmd_context *cmd,
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struct volume_group *vg,
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struct logical_volume *lv,
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struct dm_list *lvs_changed __attribute__((unused)))
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{
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if (!lv_is_converting(lv))
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return 1;
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if (!collapse_mirrored_lv(lv)) {
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log_error("Failed to remove temporary sync layer.");
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return 0;
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}
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lv->status &= ~CONVERTING;
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if (!lv_update_and_reload(lv))
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return_0;
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log_print_unless_silent("Logical volume %s converted.", lv->name);
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return 1;
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}
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/* Swap lvid and LV names */
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int swap_lv_identifiers(struct cmd_context *cmd,
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struct logical_volume *a, struct logical_volume *b)
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{
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union lvid lvid;
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const char *name;
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lvid = a->lvid;
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a->lvid = b->lvid;
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b->lvid = lvid;
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name = a->name;
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a->name = b->name;
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if (!lv_rename_update(cmd, b, name, 0))
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return_0;
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return 1;
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}
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static void _move_lv_attributes(struct logical_volume *to, struct logical_volume *from)
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{
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/* Maybe move this code into thin_merge_finish() */
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to->status = from->status; // FIXME maybe some masking ?
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to->alloc = from->alloc;
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to->profile = from->profile;
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to->read_ahead = from->read_ahead;
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to->major = from->major;
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to->minor = from->minor;
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to->timestamp = from->timestamp;
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to->hostname = from->hostname;
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/* Move tags */
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dm_list_init(&to->tags);
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dm_list_splice(&to->tags, &from->tags);
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/* Anything else to preserve? */
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}
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/* Finalise merging of lv into merge_lv */
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int thin_merge_finish(struct cmd_context *cmd,
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struct logical_volume *merge_lv,
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struct logical_volume *lv)
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{
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if (!swap_lv_identifiers(cmd, merge_lv, lv)) {
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log_error("Failed to swap %s with merging %s.",
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lv->name, merge_lv->name);
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return 0;
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}
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/* Preserve origins' attributes */
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_move_lv_attributes(lv, merge_lv);
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/* Removed LV has to be visible */
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if (!lv_remove_single(cmd, merge_lv, DONT_PROMPT, 1))
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return_0;
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return 1;
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}
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int lvconvert_merge_finish(struct cmd_context *cmd,
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struct volume_group *vg,
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struct logical_volume *lv,
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struct dm_list *lvs_changed __attribute__((unused)))
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{
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struct lv_segment *snap_seg = find_snapshot(lv);
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if (!lv_is_merging_origin(lv)) {
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log_error("Logical volume %s has no merging snapshot.", lv->name);
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return 0;
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}
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log_print_unless_silent("Merge of snapshot into logical volume %s has finished.", lv->name);
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if (seg_is_thin_volume(snap_seg)) {
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clear_snapshot_merge(lv);
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if (!thin_merge_finish(cmd, lv, snap_seg->lv))
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return_0;
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} else if (!lv_remove_single(cmd, snap_seg->cow, DONT_PROMPT, 0)) {
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log_error("Could not remove snapshot %s merged into %s.",
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snap_seg->cow->name, lv->name);
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return 0;
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}
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return 1;
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}
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progress_t poll_merge_progress(struct cmd_context *cmd,
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struct logical_volume *lv,
|
||||
const char *name __attribute__((unused)),
|
||||
struct daemon_parms *parms)
|
||||
{
|
||||
dm_percent_t percent = DM_PERCENT_0;
|
||||
|
||||
if (!lv_is_merging_origin(lv) ||
|
||||
!lv_snapshot_percent(lv, &percent)) {
|
||||
log_error("%s: Failed query for merging percentage. Aborting merge.", lv->name);
|
||||
return PROGRESS_CHECK_FAILED;
|
||||
} else if (percent == DM_PERCENT_INVALID) {
|
||||
log_error("%s: Merging snapshot invalidated. Aborting merge.", lv->name);
|
||||
return PROGRESS_CHECK_FAILED;
|
||||
} else if (percent == LVM_PERCENT_MERGE_FAILED) {
|
||||
log_error("%s: Merge failed. Retry merge or inspect manually.", lv->name);
|
||||
return PROGRESS_CHECK_FAILED;
|
||||
}
|
||||
|
||||
if (parms->progress_display)
|
||||
log_print_unless_silent("%s: %s: %.1f%%", lv->name, parms->progress_title,
|
||||
100.0 - dm_percent_to_float(percent));
|
||||
else
|
||||
log_verbose("%s: %s: %.1f%%", lv->name, parms->progress_title,
|
||||
100.0 - dm_percent_to_float(percent));
|
||||
|
||||
if (percent == DM_PERCENT_0)
|
||||
return PROGRESS_FINISHED_ALL;
|
||||
|
||||
return PROGRESS_UNFINISHED;
|
||||
}
|
||||
|
||||
progress_t poll_thin_merge_progress(struct cmd_context *cmd,
|
||||
struct logical_volume *lv,
|
||||
const char *name __attribute__((unused)),
|
||||
struct daemon_parms *parms)
|
||||
{
|
||||
uint32_t device_id;
|
||||
|
||||
if (!lv_thin_device_id(lv, &device_id)) {
|
||||
stack;
|
||||
return PROGRESS_CHECK_FAILED;
|
||||
}
|
||||
|
||||
/*
|
||||
* There is no need to poll more than once,
|
||||
* a thin snapshot merge is immediate.
|
||||
*/
|
||||
|
||||
if (device_id != find_snapshot(lv)->device_id) {
|
||||
log_error("LV %s is not merged.", lv->name);
|
||||
return PROGRESS_CHECK_FAILED;
|
||||
}
|
||||
|
||||
return PROGRESS_FINISHED_ALL; /* Merging happend */
|
||||
}
|
||||
61
tools/lvconvert_poll.h
Normal file
61
tools/lvconvert_poll.h
Normal file
@ -0,0 +1,61 @@
|
||||
/*
|
||||
* Copyright (C) 2015 Red Hat, Inc. All rights reserved.
|
||||
*
|
||||
* This file is part of LVM2.
|
||||
*
|
||||
* This copyrighted material is made available to anyone wishing to use,
|
||||
* modify, copy, or redistribute it subject to the terms and conditions
|
||||
* of the GNU Lesser General Public License v.2.1.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with this program; if not, write to the Free Software Foundation,
|
||||
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef _LVM_LVCONVERT_H
|
||||
#define _LVM_LVCONVERT_H
|
||||
|
||||
#include "polldaemon.h"
|
||||
|
||||
struct cmd_context;
|
||||
struct logical_volume;
|
||||
struct volume_group;
|
||||
|
||||
struct volume_group *lvconvert_get_copy_vg(struct cmd_context *cmd,
|
||||
const char *name,
|
||||
const char *uuid __attribute__((unused)));
|
||||
|
||||
struct logical_volume *lvconvert_get_copy_lv(struct cmd_context *cmd __attribute__((unused)),
|
||||
struct volume_group *vg,
|
||||
const char *name,
|
||||
const char *uuid,
|
||||
uint64_t lv_type __attribute__((unused)));
|
||||
|
||||
int lvconvert_mirror_finish(struct cmd_context *cmd,
|
||||
struct volume_group *vg,
|
||||
struct logical_volume *lv,
|
||||
struct dm_list *lvs_changed __attribute__((unused)));
|
||||
|
||||
int swap_lv_identifiers(struct cmd_context *cmd,
|
||||
struct logical_volume *a, struct logical_volume *b);
|
||||
|
||||
int thin_merge_finish(struct cmd_context *cmd,
|
||||
struct logical_volume *merge_lv,
|
||||
struct logical_volume *lv);
|
||||
|
||||
int lvconvert_merge_finish(struct cmd_context *cmd,
|
||||
struct volume_group *vg,
|
||||
struct logical_volume *lv,
|
||||
struct dm_list *lvs_changed __attribute__((unused)));
|
||||
|
||||
progress_t poll_merge_progress(struct cmd_context *cmd,
|
||||
struct logical_volume *lv,
|
||||
const char *name __attribute__((unused)),
|
||||
struct daemon_parms *parms);
|
||||
|
||||
progress_t poll_thin_merge_progress(struct cmd_context *cmd,
|
||||
struct logical_volume *lv,
|
||||
const char *name __attribute__((unused)),
|
||||
struct daemon_parms *parms);
|
||||
|
||||
#endif /* _LVM_LVCONVERT_H */
|
||||
Loading…
Reference in New Issue
Block a user