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md: fix bitmap-on-external-file bug.

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commit a2ed9615e3222645007fc19991aedf30eed3ecfd
fixed a bug with 'internal' bitmaps, but in the process broke
'in a file' bitmaps.  So they are broken in 2.6.28

This fixes it, and needs to go in 2.6.28-stable.

Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
This commit is contained in:
NeilBrown 2009-01-09 08:31:05 +11:00
parent 9e42d0cf50
commit 538452700d
1 changed files with 5 additions and 3 deletions
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8
drivers/md/bitmap.c
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@ -964,9 +964,11 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
*/
page = bitmap->sb_page;
offset = sizeof(bitmap_super_t);
read_sb_page(bitmap->mddev, bitmap->offset,
page,
index, count);
if (!file)
read_sb_page(bitmap->mddev,
bitmap->offset,
page,
index, count);
} else if (file) {
page = read_page(file, index, bitmap, count);
offset = 0;