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[Xen-devel] you patch "block: push down BKL into .open and .release" and
| To: | <arnd@xxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] you patch "block: push down BKL into .open and .release" and its changes to xen-blkfront.c |
| From: | "Jan Beulich" <JBeulich@xxxxxxxxxx> |
| Date: | Wed, 25 Aug 2010 11:59:23 +0100 |
| Cc: | jaxboe@xxxxxxxxxxxx, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Daniel Stodden <daniel.stodden@xxxxxxxxxx> |
| Delivery-date: | Wed, 25 Aug 2010 04:00:56 -0700 |
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Arnd,
what was the point of adding {,un}lock_kernel() to blkif_open() and
blkif_release()? Afaict, the associated bdev is protected by a mutex
anyway, so even without Daniel's addition of a mutex to these
paths I don't see the need for the BKL here.
Thanks, Jan
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