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(parent: 067dc85) | patch
librbd: explicitly disable readahead for writearound cache 38602/head
authorJason Dillaman <dillaman@redhat.com>
Tue, 15 Dec 2020 19:56:02 +0000 (14:56 -0500)
committerJason Dillaman <dillaman@redhat.com>
Tue, 15 Dec 2020 20:26:45 +0000 (15:26 -0500)
commitb65f6b865044bffc4db07551caff9e81d6fa8f28
tree5dfe7b9359701f4f9e9dd259c4f4736ccaf14cf3tree | snapshot
parent067dc85af4eb6a10e228008c00a7fe3858a6fa42commit | diff
librbd: explicitly disable readahead for writearound cache

The readahead IOs would be wasted effort since the writearound
cache does not service reads.

Fixes: https://tracker.ceph.com/issues/48486
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
src/librbd/ImageCtx.cc diff | blob | history
src/librbd/ImageCtx.h diff | blob | history
src/librbd/image/OpenRequest.cc diff | blob | history
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