Date: Tue, 1 Apr 2014 21:54:21 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r264024 - head/sys/cam/ctl Message-ID: <201404012154.s31LsLDc003335@svn.freebsd.org>
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Author: trasz Date: Tue Apr 1 21:54:20 2014 New Revision: 264024 URL: http://svnweb.freebsd.org/changeset/base/264024 Log: Use atomic ops instead of mutexes where appropriate. Submitted by: mav@ Sponsored by: The FreeBSD Foundation Modified: head/sys/cam/ctl/ctl_frontend_iscsi.c Modified: head/sys/cam/ctl/ctl_frontend_iscsi.c ============================================================================== --- head/sys/cam/ctl/ctl_frontend_iscsi.c Tue Apr 1 21:47:22 2014 (r264023) +++ head/sys/cam/ctl/ctl_frontend_iscsi.c Tue Apr 1 21:54:20 2014 (r264024) @@ -967,9 +967,7 @@ cfiscsi_callout(void *context) callout_schedule(&cs->cs_callout, 1 * hz); - CFISCSI_SESSION_LOCK(cs); - cs->cs_timeout++; - CFISCSI_SESSION_UNLOCK(cs); + atomic_add_int(&cs->cs_timeout, 1); #ifdef ICL_KERNEL_PROXY if (cs->cs_waiting_for_ctld || cs->cs_login_phase) { @@ -2522,10 +2520,8 @@ cfiscsi_datamove_out(union ctl_io *io) */ PDU_TOTAL_TRANSFER_LEN(request) = io->scsiio.kern_total_len; - CFISCSI_SESSION_LOCK(cs); - target_transfer_tag = cs->cs_target_transfer_tag; - cs->cs_target_transfer_tag++; - CFISCSI_SESSION_UNLOCK(cs); + target_transfer_tag = + atomic_fetchadd_32(&cs->cs_target_transfer_tag, 1); #if 0 CFISCSI_SESSION_DEBUG(cs, "expecting Data-Out with initiator "
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