| To: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH] xfs: buffer ->bi_end_io function requires irq-safe lock |
| From: | Brian Foster <bfoster@xxxxxxxxxx> |
| Date: | Fri, 15 Apr 2016 14:28:28 -0400 |
| Cc: | xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <20160415180820.GA20260@xxxxxxxxxxxxx> |
| References: | <1460736519-39428-1-git-send-email-bfoster@xxxxxxxxxx> <20160415180820.GA20260@xxxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.24 (2015-08-30) |
On Fri, Apr 15, 2016 at 11:08:20AM -0700, Christoph Hellwig wrote:
> How about just doing a cmpxchg on bi_error?
Hmm, good idea. Something like this I take it..?
if (bio->bi_error)
cmpxchg(&bp->b_io_error, 0, bio->bi_error);
Brian
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