| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.4 03/43] ceph: wake up safe waiters when unregistering request | Date | Mon, 6 Jan 2014 14:39:20 -0800 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: "Yan, Zheng" <zheng.z.yan@intel.com>
commit fc55d2c9448b34218ca58733a6f51fbede09575b upstream.
We also need to wake up 'safe' waiters if error occurs or request aborted. Otherwise sync(2)/fsync(2) may hang forever.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/ceph/mds_client.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -609,6 +609,8 @@ static void __unregister_request(struct req->r_unsafe_dir = NULL; } + complete_all(&req->r_safe_completion); + ceph_mdsc_put_request(req); } @@ -2132,7 +2134,6 @@ static void handle_reply(struct ceph_mds if (head->safe) { req->r_got_safe = true; __unregister_request(mdsc, req); - complete_all(&req->r_safe_completion); if (req->r_got_unsafe) { /*
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