LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
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


  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190429045359.8923-10-ira.weiny@intel.com \
    --to=ira.weiny@intel.com \
    --cc=dan.j.williams@intel.com \
    --cc=jack@suse.cz \
    --cc=jglisse@redhat.com \
    --cc=jhubbard@nvidia.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=lsf-pc@lists.linux-foundation.org \
    --cc=mhocko@suse.com \
    --subject='Re: [RFC PATCH 09/10] fs/locks: Add tracepoint for SIGBUS on LONGTERM expiration' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).