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[PATCH] md: fix bug when raid1 attempts a partial reconstruct.
The logic here is wrong. if fullsync is 0, it WILL BUG. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1237,13 +1237,16 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
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len = (max_sector - sector_nr) << 9;
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if (len == 0)
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break;
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if (!conf->fullsync && sync_blocks == 0)
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if (!bitmap_start_sync(mddev->bitmap,
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sector_nr, &sync_blocks))
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break;
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if (sync_blocks < (PAGE_SIZE>>9))
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BUG();
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if (len > (sync_blocks<<9)) len = sync_blocks<<9;
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if (!conf->fullsync) {
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if (sync_blocks == 0) {
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if (!bitmap_start_sync(mddev->bitmap,
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sector_nr, &sync_blocks))
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break;
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if (sync_blocks < (PAGE_SIZE>>9))
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BUG();
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if (len > (sync_blocks<<9)) len = sync_blocks<<9;
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}
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}
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for (i=0 ; i < conf->raid_disks; i++) {
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bio = r1_bio->bios[i];
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