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path: root/ci/cleanmaas.sh
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#!/bin/bash

set -ex

maasver=$(apt-cache policy maas | grep Installed | cut -d ':' -f 2 | sed -e 's/^[ ]*//')

if [[ "$maasver" > "2" ]]; then
    echo "removing existing maas ..."
    sudo apt-get purge maas maas-cli maas-common maas-dhcp maas-dns maas-proxy maas-rack-controller maas-region-api maas-region-controller  -y
    sudo rm -rf /var/lib/maas
fi
e22e } /* Name.Function.Magic */ .highlight .vc { color: #f8f8f2 } /* Name.Variable.Class */ .highlight .vg { color: #f8f8f2 } /* Name.Variable.Global */ .highlight .vi { color: #f8f8f2 } /* Name.Variable.Instance */ .highlight .vm { color: #f8f8f2 } /* Name.Variable.Magic */ .highlight .il { color: #ae81ff } /* Literal.Number.Integer.Long */ } @media (prefers-color-scheme: light) { .highlight .hll { background-color: #ffffcc } .highlight .c { color: #888888 } /* Comment */ .highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; 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font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; 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background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
/*
 * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
 */

/*
 * Written by Alexander Zarochentcev.
 *
 * The kernel part of the (on-line) reiserfs resizer.
 */

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/string.h>
#include <linux/errno.h>
#include "reiserfs.h"
#include <linux/buffer_head.h>

int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
{
	int err = 0;
	struct reiserfs_super_block *sb;
	struct reiserfs_bitmap_info *bitmap;
	struct reiserfs_bitmap_info *info;
	struct reiserfs_bitmap_info *old_bitmap = SB_AP_BITMAP(s);
	struct buffer_head *bh;
	struct reiserfs_transaction_handle th;
	unsigned int bmap_nr_new, bmap_nr;
	unsigned int block_r_new, block_r;

	struct reiserfs_list_bitmap *jb;
	struct reiserfs_list_bitmap jbitmap[JOURNAL_NUM_BITMAPS];

	unsigned long int block_count, free_blocks;
	int i;
	int copy_size;
	int depth;

	sb = SB_DISK_SUPER_BLOCK(s);

	if (SB_BLOCK_COUNT(s) >= block_count_new) {
		printk("can\'t shrink filesystem on-line\n");
		return -EINVAL;
	}

	/* check the device size */
	depth = reiserfs_write_unlock_nested(s);
	bh = sb_bread(s, block_count_new - 1);
	reiserfs_write_lock_nested(s, depth);
	if (!bh) {
		printk("reiserfs_resize: can\'t read last block\n");
		return -EINVAL;
	}
	bforget(bh);

	/*
	 * old disk layout detection; those partitions can be mounted, but
	 * cannot be resized
	 */
	if (SB_BUFFER_WITH_SB(s)->b_blocknr * SB_BUFFER_WITH_SB(s)->b_size
	    != REISERFS_DISK_OFFSET_IN_BYTES) {
		printk
		    ("reiserfs_resize: unable to resize a reiserfs without distributed bitmap (fs version < 3.5.12)\n");
		return -ENOTSUPP;
	}

	/* count used bits in last bitmap block */
	block_r = SB_BLOCK_COUNT(s) -
			(reiserfs_bmap_count(s) - 1) * s->s_blocksize * 8;

	/* count bitmap blocks in new fs */
	bmap_nr_new = block_count_new / (s->s_blocksize * 8);
	block_r_new = block_count_new - bmap_nr_new * s->s_blocksize * 8;
	if (block_r_new)
		bmap_nr_new++;
	else
		block_r_new = s->s_blocksize * 8;

	/* save old values */
	block_count = SB_BLOCK_COUNT(s);
	bmap_nr = reiserfs_bmap_count(s);

	/* resizing of reiserfs bitmaps (journal and real), if needed */
	if (bmap_nr_new > bmap_nr) {
		/* reallocate journal bitmaps */
		if (reiserfs_allocate_list_bitmaps(s, jbitmap, bmap_nr_new) < 0) {
			printk
			    ("reiserfs_resize: unable to allocate memory for journal bitmaps\n");
			return -ENOMEM;
		}
		/*
		 * the new journal bitmaps are zero filled, now we copy i
		 * the bitmap node pointers from the old journal bitmap
		 * structs, and then transfer the new data structures
		 * into the journal struct.
		 *
		 * using the copy_size var below allows this code to work for
		 * both shrinking and expanding the FS.
		 */
		copy_size = bmap_nr_new < bmap_nr ? bmap_nr_new : bmap_nr;
		copy_size =
		    copy_size * sizeof(struct reiserfs_list_bitmap_node *);
		for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) {
			struct reiserfs_bitmap_node **node_tmp;
			jb = SB_JOURNAL(s)->j_list_bitmap + i;
			memcpy(jbitmap[i].bitmaps, jb->bitmaps, copy_size);

			/*
			 * just in case vfree schedules on us, copy the new
			 * pointer into the journal struct before freeing the
			 * old one
			 */
			node_tmp = jb->bitmaps;
			jb->bitmaps = jbitmap[i].bitmaps;
			vfree(node_tmp);
		}

		/*
		 * allocate additional bitmap blocks, reallocate
		 * array of bitmap block pointers
		 */
		bitmap =
		    vzalloc(sizeof(struct reiserfs_bitmap_info) * bmap_nr_new);
		if (!bitmap) {
			/*
			 * Journal bitmaps are still supersized, but the
			 * memory isn't leaked, so I guess it's ok
			 */
			printk("reiserfs_resize: unable to allocate memory.\n");
			return -ENOMEM;
		}
		for (i = 0; i < bmap_nr; i++)
			bitmap[i] = old_bitmap[i];

		/*
		 * This doesn't go through the journal, but it doesn't have to.
		 * The changes are still atomic: We're synced up when the
		 * journal transaction begins, and the new bitmaps don't
		 * matter if the transaction fails.
		 */
		for (i = bmap_nr; i < bmap_nr_new; i++) {
			int depth;
			/*
			 * don't use read_bitmap_block since it will cache
			 * the uninitialized bitmap
			 */
			depth = reiserfs_write_unlock_nested(s);
			bh = sb_bread(s, i * s->s_blocksize * 8);
			reiserfs_write_lock_nested(s, depth);
			if (!bh) {
				vfree(bitmap);
				return -EIO;
			}
			memset(bh->b_data, 0, sb_blocksize(sb));
			reiserfs_set_le_bit(0, bh->b_data);
			reiserfs_cache_bitmap_metadata(s, bh, bitmap + i);

			set_buffer_uptodate(bh);
			mark_buffer_dirty(bh);
			depth = reiserfs_write_unlock_nested(s);
			sync_dirty_buffer(bh);
			reiserfs_write_lock_nested(s, depth);
			/* update bitmap_info stuff */
			bitmap[i].free_count = sb_blocksize(sb) * 8 - 1;
			brelse(bh);
		}
		/* free old bitmap blocks array */
		SB_AP_BITMAP(s) = bitmap;
		vfree(old_bitmap);
	}

	/*
	 * begin transaction, if there was an error, it's fine. Yes, we have
	 * incorrect bitmaps now, but none of it is ever going to touch the
	 * disk anyway.
	 */
	err = journal_begin(&th, s, 10);
	if (err)
		return err;

	/* Extend old last bitmap block - new blocks have been made available */
	info = SB_AP_BITMAP(s) + bmap_nr - 1;
	bh = reiserfs_read_bitmap_block(s, bmap_nr - 1);
	if (!bh) {
		int jerr = journal_end(&th);
		if (jerr)
			return jerr;
		return -EIO;
	}

	reiserfs_prepare_for_journal(s, bh, 1);
	for (i = block_r; i < s->s_blocksize * 8; i++)
		reiserfs_clear_le_bit(i, bh->b_data);
	info->free_count += s->s_blocksize * 8 - block_r;

	journal_mark_dirty(&th, bh);
	brelse(bh);

	/* Correct new last bitmap block - It may not be full */
	info = SB_AP_BITMAP(s) + bmap_nr_new - 1;
	bh = reiserfs_read_bitmap_block(s, bmap_nr_new - 1);
	if (!bh) {
		int jerr = journal_end(&th);
		if (jerr)
			return jerr;
		return -EIO;
	}

	reiserfs_prepare_for_journal(s, bh, 1);
	for (i = block_r_new; i < s->s_blocksize * 8; i++)
		reiserfs_set_le_bit(i, bh->b_data);
	journal_mark_dirty(&th, bh);
	brelse(bh);

	info->free_count -= s->s_blocksize * 8 - block_r_new;
	/* update super */
	reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
	free_blocks = SB_FREE_BLOCKS(s);
	PUT_SB_FREE_BLOCKS(s,
			   free_blocks + (block_count_new - block_count -
					  (bmap_nr_new - bmap_nr)));
	PUT_SB_BLOCK_COUNT(s, block_count_new);
	PUT_SB_BMAP_NR(s, bmap_would_wrap(bmap_nr_new) ? : bmap_nr_new);

	journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));

	SB_JOURNAL(s)->j_must_wait = 1;
	return journal_end(&th);
}