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Use atomic ops instead of mutexes where appropriate.

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Submitted by:	mav@
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala 2014-04-01 21:54:20 +00:00
parent ecba49ddfc
commit 01a111f447
1 changed files with 3 additions and 7 deletions
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10
sys/cam/ctl/ctl_frontend_iscsi.c
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@ -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 "