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zpool reopen should detect expanded devices

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Update bdev_capacity to have wholedisk vdevs query the
size of the underlying block device (correcting for the size
of the efi parition and partition alignment) and therefore detect
expanded space.

Correct vdev_get_stats_ex so that the expandsize is aligned
to metaslab size and new space is only reported if it is large
enough for a new metaslab.

Reviewed by: Don Brady <don.brady@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: John Wren Kennedy <jwk404@gmail.com>
Signed-off-by: sara hartse <sara.hartse@delphix.com>
External-issue: LX-165
Closes #7546
Issue #7582
This commit is contained in:
Sara Hartse
2018-05-31 10:36:37 -07:00
committed by Tony Hutter
parent 3350a33908
commit 2a16d4cfaf
6 changed files with 106 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/vdev.c
+1 -2
View File
@@ -21,7 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright 2017 Nexenta Systems, Inc.
* Copyright (c) 2014 Integros [integros.com]
* Copyright 2016 Toomas Soome <tsoome@me.com>
@@ -3039,7 +3039,6 @@ vdev_get_stats_ex(vdev_t *vd, vdev_stat_t *vs, vdev_stat_ex_t *vsx)
vd->vdev_max_asize - vd->vdev_asize,
1ULL << tvd->vdev_ms_shift);
}
vs->vs_esize = vd->vdev_max_asize - vd->vdev_asize;
if (vd->vdev_aux == NULL && vd == vd->vdev_top &&
!vd->vdev_ishole) {
vs->vs_fragmentation = vd->vdev_mg->mg_fragmentation;
module/zfs/vdev_disk.c
+34 -10
View File
@@ -23,7 +23,7 @@
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Rewritten for Linux by Brian Behlendorf <behlendorf1@llnl.gov>.
* LLNL-CODE-403049.
* Copyright (c) 2012, 2015 by Delphix. All rights reserved.
* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
*/
#include <sys/zfs_context.h>
@@ -35,10 +35,14 @@
#include <sys/zio.h>
#include <sys/sunldi.h>
#include <linux/mod_compat.h>
#include <linux/msdos_fs.h>
char *zfs_vdev_scheduler = VDEV_SCHEDULER;
static void *zfs_vdev_holder = VDEV_HOLDER;
/* size of the "reserved" partition, in blocks */
#define EFI_MIN_RESV_SIZE (16 * 1024)
/*
* Virtual device vector for disks.
*/
@@ -82,17 +86,39 @@ vdev_bdev_mode(int smode)
}
#endif /* HAVE_OPEN_BDEV_EXCLUSIVE */
/* The capacity (in bytes) of a bdev that is available to be used by a vdev */
static uint64_t
bdev_capacity(struct block_device *bdev)
bdev_capacity(struct block_device *bdev, boolean_t wholedisk)
{
struct hd_struct *part = bdev->bd_part;
uint64_t sectors = get_capacity(bdev->bd_disk);
/* If there are no paritions, return the entire device capacity */
if (part == NULL)
return (sectors << SECTOR_BITS);
/* The partition capacity referenced by the block device */
if (part)
return (part->nr_sects << 9);
/*
* If there are partitions, decide if we are using a `wholedisk`
* layout (composed of part1 and part9) or just a single partition.
*/
if (wholedisk) {
/* Verify the expected device layout */
ASSERT3P(bdev, !=, bdev->bd_contains);
/*
* Sectors used by the EFI partition (part9) as well as
* partion alignment.
*/
uint64_t used = EFI_MIN_RESV_SIZE + NEW_START_BLOCK +
PARTITION_END_ALIGNMENT;
/* Otherwise assume the full device capacity */
return (get_capacity(bdev->bd_disk) << 9);
/* Space available to the vdev, i.e. the size of part1 */
if (sectors <= used)
return (0);
uint64_t available = sectors - used;
return (available << SECTOR_BITS);
} else {
/* The partition capacity referenced by the block device */
return (part->nr_sects << SECTOR_BITS);
}
}
static void
@@ -328,9 +354,7 @@ skip_open:
v->vdev_nonrot = blk_queue_nonrot(bdev_get_queue(vd->vd_bdev));
/* Physical volume size in bytes */
*psize = bdev_capacity(vd->vd_bdev);
/* TODO: report possible expansion size */
*psize = bdev_capacity(vd->vd_bdev, v->vdev_wholedisk);
*max_psize = *psize;
/* Based on the minimum sector size set the block size */