I did my coding/testing/debugging on RHEL 6. There is no direct support
for this system call :(, hence I used syscall (man page also suggests
so).
chandra
On Tue, 2010-10-12 at 03:34 +0900, FUJITA Tomonori wrote:
> On Mon, 27 Sep 2010 14:07:19 -0700
> Chandra Seetharaman <sekharan@xxxxxxxxxx> wrote:
>
> > Use bs_finish data structure in iSCSI thread per target context.
> >
> > Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
> > Signed-off-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
> >
> > ---
> > usr/bs.c | 1 +
> > usr/iscsi/iscsid.h | 2 ++
> > usr/iscsi/target.c | 17 ++++++++++++++++-
> > 3 files changed, 19 insertions(+), 1 deletion(-)
> >
> > Index: tgt-102236c/usr/bs.c
> > ===================================================================
> > --- tgt-102236c.orig/usr/bs.c
> > +++ tgt-102236c/usr/bs.c
> > @@ -34,6 +34,7 @@
> >
> > #include "list.h"
> > #include "tgtd.h"
> > +#include "target.h"
> > #include "tgtadm_error.h"
> > #include "util.h"
> > #include "target.h"
> > Index: tgt-102236c/usr/iscsi/iscsid.h
> > ===================================================================
> > --- tgt-102236c.orig/usr/iscsi/iscsid.h
> > +++ tgt-102236c/usr/iscsi/iscsid.h
> > @@ -259,6 +259,8 @@ struct iscsi_target {
> >
> > pthread_t thread;
> > int stop_pthread;
> > +
> > + struct bs_finish bsfin;
> > };
> >
> > enum task_flags {
> > Index: tgt-102236c/usr/iscsi/target.c
> > ===================================================================
> > --- tgt-102236c.orig/usr/iscsi/target.c
> > +++ tgt-102236c/usr/iscsi/target.c
> > @@ -384,6 +384,7 @@ void iscsi_target_destroy(int tid)
> > pthread_kill(target->thread, SIGUSR2);
> >
> > pthread_join(target->thread, NULL);
> > + pthread_mutex_destroy(&target->bsfin.finished_lock);
> > }
> >
> > close(target->efd);
> > @@ -405,6 +406,18 @@ static void *iscsi_thread_fn(void *arg)
> > sigaddset(&mask, SIGUSR2);
> > pthread_sigmask(SIG_BLOCK, &mask, NULL);
> >
> > + pthread_mutex_init(&t->bsfin.finished_lock, NULL);
> > + INIT_LIST_HEAD(&t->bsfin.finished_list);
> > +
> > + t->bsfin.th_id = syscall(SYS_gettid);
>
> Can we simply use gettid here?
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