This is a note to let you know that I've just added the patch titled
md/bitmap: revert a patch
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
md-bitmap-revert-a-patch.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 938b533d479e7428b7fa1b8179283646d2e2c53d Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@xxxxxx>
Date: Mon, 16 Oct 2017 19:03:44 -0700
Subject: md/bitmap: revert a patch
From: Shaohua Li <shli@xxxxxx>
commit 938b533d479e7428b7fa1b8179283646d2e2c53d upstream.
This reverts commit 8031c3ddc70a. That patches doesn't work well if PAGE_SIZE >
4k. We will fix the original problem with a different approach.
Fix: 8031c3ddc70a(md/bitmap: copy correct data for bitmap super)
Reported-by: Joshua Kinard <kumba@xxxxxxxxxx>
Suggested-by: Neil Brown <neilb@xxxxxxxx>
Signed-off-by: Shaohua Li <shli@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/bitmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -625,7 +625,7 @@ re_read:
err = read_sb_page(bitmap->mddev,
offset,
sb_page,
- 0, PAGE_SIZE);
+ 0, sizeof(bitmap_super_t));
}
if (err)
return err;
@@ -2123,7 +2123,7 @@ int bitmap_resize(struct bitmap *bitmap,
if (store.sb_page && bitmap->storage.sb_page)
memcpy(page_address(store.sb_page),
page_address(bitmap->storage.sb_page),
- PAGE_SIZE);
+ sizeof(bitmap_super_t));
bitmap_file_unmap(&bitmap->storage);
bitmap->storage = store;
Patches currently in stable-queue which might be from shli@xxxxxx are
queue-4.14/md-fix-deadlock-error-in-recent-patch.patch
queue-4.14/raid1-prevent-freeze_array-wait_all_barriers-deadlock.patch
queue-4.14/md-bitmap-revert-a-patch.patch
queue-4.14/md-don-t-check-md_sb_change_clean-in-md_allow_write.patch