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(parent: ebd8324) | patch
rbd: flush dcache after zeroing page data
authorAlex Elder <elder@inktank.com>
Thu, 23 May 2013 01:54:25 +0000 (20:54 -0500)
committerAlex Elder <elder@inktank.com>
Wed, 29 May 2013 14:12:47 +0000 (09:12 -0500)
commit81d7ac5e09dd6bce8de43272de102aafdb3481c6
tree1ec41ac8ee6fb5ec424b5ada0981a710b40e362atree | snapshot
parentebd83240e16220ebb796be0a2736b4b917222b6dcommit | diff
rbd: flush dcache after zeroing page data

Neither zero_bio_chain() nor zero_pages() contains a call to flush
caches after zeroing a portion of a page.  This can cause problems
on architectures that have caches that allow virtual address
aliasing.

This resolves:
    http://tracker.ceph.com/issues/4777

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
drivers/block/rbd.c diff | blob | history
Linux kernel for KaRo TX COM modules