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cc13b1d150
wait_barrier() includes a counter, so we must call it precisely once (unless balanced by allow_barrier()) for each request submitted. Since commit20d0189b10block: Introduce new bio_split() in 3.14-rc1, we don't call it for the extra requests generated when we need to split a bio. When this happens the counter goes negative, any resync/recovery will never start, and "mdadm --stop" will hang. Reported-by: Chris Murphy <lists@colorremedies.com> Fixes:20d0189b10Cc: stable@vger.kernel.org (3.14+) Cc: Kent Overstreet <kmo@daterainc.com> Signed-off-by: NeilBrown <neilb@suse.de>
4752 lines
130 KiB
4752 lines
130 KiB