From 3890dce1d3a8b9fe3bc36de99496792e468cd079 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Wed, 9 Nov 2016 16:42:48 +0800 Subject: libceph: fix legacy layout decode with pool 0 If your data pool was pool 0, ceph_file_layout_from_legacy() transform that to -1 unconditionally, which broke upgrades. We only want do that for a fully zeroed ceph_file_layout, so that it still maps to a file_layout_t. If any fields are set, though, we trust the fl_pgpool to be a valid pool. Fixes: 7627151ea30bc ("libceph: define new ceph_file_layout structure") Link: http://tracker.ceph.com/issues/17825 Signed-off-by: Yan, Zheng Signed-off-by: Ilya Dryomov --- net/ceph/ceph_fs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net') diff --git a/net/ceph/ceph_fs.c b/net/ceph/ceph_fs.c index 7d54e94..dcbe67f 100644 --- a/net/ceph/ceph_fs.c +++ b/net/ceph/ceph_fs.c @@ -34,7 +34,8 @@ void ceph_file_layout_from_legacy(struct ceph_file_layout *fl, fl->stripe_count = le32_to_cpu(legacy->fl_stripe_count); fl->object_size = le32_to_cpu(legacy->fl_object_size); fl->pool_id = le32_to_cpu(legacy->fl_pg_pool); - if (fl->pool_id == 0) + if (fl->pool_id == 0 && fl->stripe_unit == 0 && + fl->stripe_count == 0 && fl->object_size == 0) fl->pool_id = -1; } EXPORT_SYMBOL(ceph_file_layout_from_legacy); -- cgit v1.1 From 264048afab27d7c27eedf5394714e0b396d787f7 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Tue, 8 Nov 2016 15:15:24 +0100 Subject: libceph: initialize last_linger_id with a large integer osdc->last_linger_id is a counter for lreq->linger_id, which is used for watch cookies. Starting with a large integer should ease the task of telling apart kernel and userspace clients. Signed-off-by: Ilya Dryomov --- net/ceph/osd_client.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net') diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index d9bf7a1..e6ae15b 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -4094,6 +4094,7 @@ int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) osd_init(&osdc->homeless_osd); osdc->homeless_osd.o_osdc = osdc; osdc->homeless_osd.o_osd = CEPH_HOMELESS_OSD; + osdc->last_linger_id = CEPH_LINGER_ID_START; osdc->linger_requests = RB_ROOT; osdc->map_checks = RB_ROOT; osdc->linger_map_checks = RB_ROOT; -- cgit v1.1