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md: fix an unsigned compare to allow creation of bitmaps with v1.0 metadata
As page->index is unsigned, this all becomes an unsigned comparison, which almost always returns an error. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Stable <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -274,7 +274,7 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait)
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if (bitmap->offset < 0) {
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/* DATA BITMAP METADATA */
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if (bitmap->offset
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+ page->index * (PAGE_SIZE/512)
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+ (long)(page->index * (PAGE_SIZE/512))
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+ size/512 > 0)
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/* bitmap runs in to metadata */
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return -EINVAL;
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