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Date: Wed, 19 Jun 2013 15:12:06 +0800 From: majianpeng <majianpeng@...il.com> To: sage <sage@...tank.com> Cc: ceph-devel <ceph-devel@...r.kernel.org>, linux-kernel <linux-kernel@...r.kernel.org> Subject: [PATCH] ceph: avoid meaningless calling ceph_caps_revoking if sync_mode == WB_SYNC_ALL. Signed-off-by: Jianpeng Ma <majianpeng@...il.com> --- fs/ceph/addr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 3e68ac1..25fa8b8 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -677,8 +677,8 @@ static int ceph_writepages_start(struct address_space *mapping, * integrity write (e.g., O_SYNC write or fsync()), or if our * cap is being revoked. */ - do_sync = wbc->sync_mode == WB_SYNC_ALL; - if (ceph_caps_revoking(ci, CEPH_CAP_FILE_BUFFER)) + if ((wbc->sync_mode == WB_SYNC_ALL) || + ceph_caps_revoking(ci, CEPH_CAP_FILE_BUFFER)) do_sync = 1; dout("writepages_start %p dosync=%d (mode=%s)\n", inode, do_sync, -- 1.8.3.rc1.44.gb387c77
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