From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Simmons Date: Thu, 27 Feb 2020 16:10:58 -0500 Subject: [lustre-devel] [PATCH 190/622] lustre: lov: cl_cache could miss initialize In-Reply-To: <1582838290-17243-1-git-send-email-jsimmons@infradead.org> References: <1582838290-17243-1-git-send-email-jsimmons@infradead.org> Message-ID: <1582838290-17243-191-git-send-email-jsimmons@infradead.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lustre-devel@lists.lustre.org From: Yang Sheng The cl_cache may be missed initialize when we mount a client with deactivate osc and then active it. WC-bug-id: https://jira.whamcloud.com/browse/LU-11658 Lustre-commit: 42e83c44eb5a ("LU-11658 lov: cl_cache could miss initialize") Signed-off-by: Yang Sheng Reviewed-on: https://review.whamcloud.com/33650 Reviewed-by: Andreas Dilger Reviewed-by: Patrick Farrell Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- fs/lustre/lov/lov_obd.c | 46 +++++++++++++++++++++++++++++----------------- 1 file changed, 29 insertions(+), 17 deletions(-) diff --git a/fs/lustre/lov/lov_obd.c b/fs/lustre/lov/lov_obd.c index a16c663..08d7edc 100644 --- a/fs/lustre/lov/lov_obd.c +++ b/fs/lustre/lov/lov_obd.c @@ -360,23 +360,6 @@ static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid, tgt = lov->lov_tgts[index]; if (!tgt) continue; - /* - * LU-642, initially inactive OSC could miss the obd_connect, - * we make up for it here. - */ - if (ev == OBD_NOTIFY_ACTIVATE && !tgt->ltd_exp && - obd_uuid_equals(uuid, &tgt->ltd_uuid)) { - struct obd_uuid lov_osc_uuid = {"LOV_OSC_UUID"}; - - obd_connect(NULL, &tgt->ltd_exp, tgt->ltd_obd, - &lov_osc_uuid, &lov->lov_ocd, NULL); - } - if (!tgt->ltd_exp) - continue; - - CDEBUG(D_INFO, "lov idx %d is %s conn %#llx\n", - index, obd_uuid2str(&tgt->ltd_uuid), - tgt->ltd_exp->exp_handle.h_cookie); if (obd_uuid_equals(uuid, &tgt->ltd_uuid)) break; } @@ -389,6 +372,31 @@ static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid, if (ev == OBD_NOTIFY_DEACTIVATE || ev == OBD_NOTIFY_ACTIVATE) { activate = (ev == OBD_NOTIFY_ACTIVATE) ? 1 : 0; + /* + * LU-642, initially inactive OSC could miss the obd_connect, + * we make up for it here. + */ + if (activate && !tgt->ltd_exp) { + int rc; + struct obd_uuid lov_osc_uuid = {"LOV_OSC_UUID"}; + + rc = obd_connect(NULL, &tgt->ltd_exp, tgt->ltd_obd, + &lov_osc_uuid, &lov->lov_ocd, NULL); + if (rc || !tgt->ltd_exp) { + index = rc; + goto out; + } + rc = obd_set_info_async(NULL, tgt->ltd_exp, + sizeof(KEY_CACHE_SET), + KEY_CACHE_SET, + sizeof(struct cl_client_cache), + lov->lov_cache, NULL); + if (rc < 0) { + index = rc; + goto out; + } + } + if (lov->lov_tgts[index]->ltd_activate == activate) { CDEBUG(D_INFO, "OSC %s already %sactivate!\n", uuid->uuid, activate ? "" : "de"); @@ -421,6 +429,10 @@ static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid, CERROR("Unknown event(%d) for uuid %s", ev, uuid->uuid); } + if (tgt->ltd_exp) + CDEBUG(D_INFO, "%s: lov idx %d conn %llx\n", obd_uuid2str(uuid), + index, tgt->ltd_exp->exp_handle.h_cookie); + out: lov_tgts_putref(obd); return index; -- 1.8.3.1