From: NeilBrown <neilb@suse.de>
To: linux-raid@vger.kernel.org
Subject: [md PATCH 24/24] md/raid5: Allow reshape while a bitmap is present.
Date: Tue, 17 Apr 2012 18:43:43 +1000 [thread overview]
Message-ID: <20120417084342.6433.44955.stgit@notabene.brown> (raw)
In-Reply-To: <20120417084324.6433.68345.stgit@notabene.brown>
We always should have allowed this. A raid5 reshape doesn't change
the size of the bitmap, so not need to restrict it.
Also add a test to make sure we don't try to start a reshape on a
failed array.
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/raid5.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index eab6168..8fba57e 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5559,9 +5559,6 @@ static int check_reshape(struct mddev *mddev)
mddev->new_layout == mddev->layout &&
mddev->new_chunk_sectors == mddev->chunk_sectors)
return 0; /* nothing to do */
- if (mddev->bitmap)
- /* Cannot grow a bitmap yet */
- return -EBUSY;
if (has_failed(conf))
return -EINVAL;
if (mddev->delta_disks < 0) {
@@ -5596,6 +5593,9 @@ static int raid5_start_reshape(struct mddev *mddev)
if (!check_stripe_cache(mddev))
return -ENOSPC;
+ if (has_failed(conf))
+ return -EINVAL;
+
rdev_for_each(rdev, mddev) {
if (!test_bit(In_sync, &rdev->flags)
&& !test_bit(Faulty, &rdev->flags))
next prev parent reply other threads:[~2012-04-17 8:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-17 8:43 [md PATCH 00/24] Allow bitmaps to be resized NeilBrown
2012-04-17 8:43 ` [md PATCH 01/24] md/bitmap: disentangle two different 'pending' flags NeilBrown
2012-04-17 8:43 ` [md PATCH 02/24] md/bitmap: add new 'space' attribute for bitmaps NeilBrown
2012-04-17 8:43 ` [md PATCH 07/24] md/bitmap: store bytes in file rather than just in last page NeilBrown
2012-04-17 8:43 ` [md PATCH 08/24] md/bitmap: separate bitmap file allocation to its own function NeilBrown
2012-04-17 8:43 ` [md PATCH 06/24] md/bitmap: move some fields of 'struct bitmap' into a 'storage' substruct NeilBrown
2012-04-17 8:43 ` [md PATCH 03/24] md/bitmap: allow a bitmap with no backing storage NeilBrown
2012-04-17 8:43 ` [md PATCH 05/24] md/bitmap: change *_page_attr() to take a page number, not a page NeilBrown
2012-04-17 8:43 ` [md PATCH 04/24] md/bitmap: centralise allocation of bitmap file pages NeilBrown
2012-04-17 8:43 ` [md PATCH 09/24] md/bitmap: move storage allocation from bitmap_load to bitmap_create NeilBrown
2012-04-17 8:43 ` [md PATCH 16/24] md/bitmap: make _page_attr bitops atomic NeilBrown
2012-04-17 8:43 ` [md PATCH 11/24] md/bitmap: remove single-bit manipulation on sb->state NeilBrown
2012-04-17 8:43 ` [md PATCH 10/24] md/bitmap: remove bitmap_mask_state NeilBrown
2012-04-17 8:43 ` [md PATCH 13/24] md/bitmap: convert some spin_lock_irqsave to spin_lock_irq NeilBrown
2012-04-17 8:43 ` [md PATCH 14/24] md/bitmap: remove async freeing of bitmap file NeilBrown
2012-04-17 8:43 ` [md PATCH 12/24] md/bitmap: use set_bit, test_bit, etc for operation on bitmap->flags NeilBrown
2012-04-17 8:43 ` [md PATCH 15/24] md/bitmap: merge bitmap_file_unmap and bitmap_file_put NeilBrown
2012-04-17 8:43 ` [md PATCH 23/24] md/raid10: resize bitmap when required during reshape NeilBrown
2012-04-17 8:43 ` [md PATCH 17/24] md/bitmap: make bitmap bitops atomic NeilBrown
2012-04-17 8:43 ` [md PATCH 18/24] md/bitmap: create a 'struct bitmap_counts' substructure of 'struct bitmap' NeilBrown
2012-04-17 8:43 ` [md PATCH 20/24] md/bitmap: add bitmap_resize function to allow bitmap resizing NeilBrown
2012-04-17 8:43 ` [md PATCH 19/24] md/bitmap: use DIV_ROUND_UP instead of open-code NeilBrown
2012-04-17 8:43 ` [md PATCH 22/24] md: allow array to be resized while bitmap is present NeilBrown
2012-04-17 8:43 ` [md PATCH 21/24] md/bitmap: make sure reshape request are reflected in superblock NeilBrown
2012-04-17 8:43 ` NeilBrown [this message]
2012-04-18 2:07 ` [md PATCH 00/24] Allow bitmaps to be resized Jack Wang
2012-04-18 3:35 ` NeilBrown
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