From owner-svn-src-head@freebsd.org Wed Oct 2 09:03:49 2019 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 6D0C6127C8F; Wed, 2 Oct 2019 09:03:49 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46jqts2FWgz43Hj; Wed, 2 Oct 2019 09:03:49 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 20CBC29376; Wed, 2 Oct 2019 09:03:49 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x9293nRS092276; Wed, 2 Oct 2019 09:03:49 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x9293mHM092273; Wed, 2 Oct 2019 09:03:48 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201910020903.x9293mHM092273@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Wed, 2 Oct 2019 09:03:48 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r352954 - head/sys/contrib/rdma/krping X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/contrib/rdma/krping X-SVN-Commit-Revision: 352954 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Oct 2019 09:03:49 -0000 Author: hselasky Date: Wed Oct 2 09:03:48 2019 New Revision: 352954 URL: https://svnweb.freebsd.org/changeset/base/352954 Log: Notify all sleeping threads of device removal in krping. Implement d_purge for krping_cdevsw. Submitted by: slavash@ MFC after: 3 days Sponsored by: Mellanox Technologies Modified: head/sys/contrib/rdma/krping/krping.c head/sys/contrib/rdma/krping/krping.h head/sys/contrib/rdma/krping/krping_dev.c Modified: head/sys/contrib/rdma/krping/krping.c ============================================================================== --- head/sys/contrib/rdma/krping/krping.c Wed Oct 2 06:15:30 2019 (r352953) +++ head/sys/contrib/rdma/krping/krping.c Wed Oct 2 09:03:48 2019 (r352954) @@ -2189,3 +2189,17 @@ krping_walk_cb_list(void (*f)(struct krping_stats *, v (*f)(cb->pd ? &cb->stats : NULL, arg); mutex_unlock(&krping_mutex); } + +void +krping_cancel_all(void) +{ + struct krping_cb *cb; + + mutex_lock(&krping_mutex); + list_for_each_entry(cb, &krping_cbs, list) { + cb->state = ERROR; + wake_up_interruptible(&cb->sem); + } + mutex_unlock(&krping_mutex); +} + Modified: head/sys/contrib/rdma/krping/krping.h ============================================================================== --- head/sys/contrib/rdma/krping/krping.h Wed Oct 2 06:15:30 2019 (r352953) +++ head/sys/contrib/rdma/krping/krping.h Wed Oct 2 09:03:48 2019 (r352954) @@ -17,3 +17,4 @@ struct krping_stats { int krping_doit(char *); void krping_walk_cb_list(void (*)(struct krping_stats *, void *), void *); int krping_sigpending(void); +void krping_cancel_all(void); Modified: head/sys/contrib/rdma/krping/krping_dev.c ============================================================================== --- head/sys/contrib/rdma/krping/krping_dev.c Wed Oct 2 06:15:30 2019 (r352953) +++ head/sys/contrib/rdma/krping/krping_dev.c Wed Oct 2 09:03:48 2019 (r352954) @@ -40,6 +40,7 @@ static d_open_t krping_open; static d_close_t krping_close; static d_read_t krping_read; static d_write_t krping_write; +static d_purge_t krping_purge; /* Character device entry points */ static struct cdevsw krping_cdevsw = { @@ -48,6 +49,7 @@ static struct cdevsw krping_cdevsw = { .d_close = krping_close, .d_read = krping_read, .d_write = krping_write, + .d_purge = krping_purge, .d_name = "krping", }; @@ -208,6 +210,13 @@ krping_write(struct cdev *dev, struct uio *uio, int io done: free(krpingmsg, M_DEVBUF); return(err); +} + +static void +krping_purge(struct cdev *dev __unused) +{ + + krping_cancel_all(); } int