From 79788c698b290426320e60374ed1324e4b5c69eb Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Tue, 2 Feb 2010 16:34:04 -0800 Subject: [PATCH 1/1] ceph: release all pages after successful osd write response We release all the pages, even if the osd response was different than the number of pages written. This could only happen due to truncation that arrives the osd in different order, for which we want the pages released anyway. Signed-off-by: Yehuda Sadeh Signed-off-by: Sage Weil --- fs/ceph/addr.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index a3bd9deb555c..8065dc92c611 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -524,9 +524,13 @@ static void writepages_finish(struct ceph_osd_request *req, bytes = le64_to_cpu(op->extent.length); if (rc >= 0) { - wrote = (bytes + (offset & ~PAGE_CACHE_MASK) + ~PAGE_CACHE_MASK) - >> PAGE_CACHE_SHIFT; - WARN_ON(wrote != req->r_num_pages); + /* + * Assume we wrote the pages we originally sent. The + * osd might reply with fewer pages if our writeback + * raced with a truncation and was adjusted at the osd, + * so don't believe the reply. + */ + wrote = req->r_num_pages; } else { wrote = 0; mapping_set_error(mapping, rc); -- 2.39.2