From: majianpeng <majianpeng@gmail.com>
Date: Thu, 27 Jun 2013 07:56:06 +0000 (+0800)
Subject: ceph: Don't use ceph-sync-mode for synchronous-fs.
X-Git-Tag: v3.12-rc1~90^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ab9b3807097fcb87b0e85a9ad82b12322d9cc63;p=pandora-kernel.git

ceph: Don't use ceph-sync-mode for synchronous-fs.

Sending reads and writes through the sync read/write paths bypasses the
page cache, which is not expected or generally a good idea.  Removing
the write check is safe as there is a conditional vfs_fsync_range() later
in ceph_aio_write that already checks for the same flag (via
IS_SYNC(inode)).

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---

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