md/bitmap: centralise allocation of bitmap file pages.

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Instead of allocating pages in read_sb_page, read_page and
bitmap_read_sb, allocate them all in bitmap_init_from disk.

Also replace the hack of calling "attach_page_buffers(page, NULL)" to
ensure that free_buffer() won't complain, by putting a test for
PagePrivate in free_buffer().

Signed-off-by: NeilBrown <neilb@suse.de>

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NeilBrown 2012-05-22 13:55:08 +10:00

parent ef99bf480d

commit 27581e5ae0

1 changed files with 68 additions and 81 deletions

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149

drivers/md/bitmap.c

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