From: ira.weiny@intel.com
To: lsf-pc@lists.linux-foundation.org
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, "Dan Williams" <dan.j.williams@intel.com>,
"Jan Kara" <jack@suse.cz>, "Jérôme Glisse" <jglisse@redhat.com>,
"John Hubbard" <jhubbard@nvidia.com>,
"Michal Hocko" <mhocko@suse.com>,
"Ira Weiny" <ira.weiny@intel.com>
Subject: [RFC PATCH 09/10] fs/locks: Add tracepoint for SIGBUS on LONGTERM expiration
Date: Sun, 28 Apr 2019 21:53:58 -0700 [thread overview]
Message-ID: <20190429045359.8923-10-ira.weiny@intel.com> (raw)
In-Reply-To: <20190429045359.8923-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
---
fs/locks.c | 1 +
include/trace/events/filelock.h | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/locks.c b/fs/locks.c
index c77eee081d11..42b96bfc71fa 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1592,6 +1592,7 @@ static void time_out_leases(struct inode *inode, struct list_head *dispose)
if (fl->fl_flags & FL_LONGTERM) {
tsk = find_task_by_vpid(fl->fl_pid);
fl->fl_break_time = 1 + jiffies + lease_break_time * HZ;
+ trace_longterm_sigbus(fl);
lease_modify_longterm(fl, F_UNLCK, dispose);
kill_pid(tsk->thread_pid, SIGBUS, 0);
} else {
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index c6f39f03cb8b..626386dbe599 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -271,7 +271,9 @@ DEFINE_EVENT(longterm_lease, take_longterm_lease,
DEFINE_EVENT(longterm_lease, release_longterm_lease,
TP_PROTO(struct file_lock *fl),
TP_ARGS(fl));
-
+DEFINE_EVENT(longterm_lease, longterm_sigbus,
+ TP_PROTO(struct file_lock *fl),
+ TP_ARGS(fl));
#endif /* _TRACE_FILELOCK_H */
--
2.20.1
next prev parent reply other threads:[~2019-04-29 4:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-29 4:53 [RFC PATCH 00/10] RDMA/FS DAX "LONGTERM" lease proposal ira.weiny
2019-04-29 4:53 ` [RFC PATCH 01/10] fs/locks: Add trace_leases_conflict ira.weiny
2019-04-29 4:53 ` [RFC PATCH 02/10] fs/locks: Introduce FL_LONGTERM file lease ira.weiny
2019-04-29 4:53 ` [RFC PATCH 03/10] mm/gup: Pass flags down to __gup_device_huge* calls ira.weiny
2019-04-29 4:53 ` [RFC PATCH 04/10] WIP: mm/gup: Ensure F_LONGTERM lease is held on GUP pages ira.weiny
2019-04-29 4:53 ` [RFC PATCH 05/10] mm/gup: Take FL_LONGTERM lease if not set by user ira.weiny
2019-04-29 4:53 ` [RFC PATCH 06/10] fs/locks: Add longterm lease traces ira.weiny
2019-04-29 4:53 ` [RFC PATCH 07/10] fs/dax: Create function dax_mapping_is_dax() ira.weiny
2019-04-29 4:53 ` [RFC PATCH 08/10] mm/gup: fs: Send SIGBUS on truncate of active file ira.weiny
2019-04-29 4:53 ` ira.weiny [this message]
2019-04-29 4:53 ` [RFC PATCH 10/10] mm/gup: Remove FOLL_LONGTERM DAX exclusion ira.weiny
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