tree d7fa97e32f52862d91318f30bd4f3163aa8d7c61
parent 86b58d13134ef14f09f8c8f37797ccc37cf823a3
author Li Wang <liwang@ubuntukylin.com> 1384327334 +0800
committer Sage Weil <sage@inktank.com> 1386954698 -0800

ceph: Avoid data inconsistency due to d-cache aliasing in readpage()

If the length of data to be read in readpage() is exactly
PAGE_CACHE_SIZE, the original code does not flush d-cache
for data consistency after finishing reading. This patches fixes
this.

Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Signed-off-by: Sage Weil <sage@inktank.com>