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authorJeff Layton <jlayton@primarydata.com>2014-08-22 10:18:45 -0400
committerJeff Layton <jlayton@primarydata.com>2014-10-07 14:06:12 -0400
commit0efaa7e82f02fe69c05ad28e905f31fc86e6f08e (patch)
treebf7e9d91c5800da259fa3ee9907287ba2b2d6cc1 /include/trace
parent415b96c5a1fe31ed9deb0618e95ecbb1df3de54c (diff)
downloadblackbird-op-linux-0efaa7e82f02fe69c05ad28e905f31fc86e6f08e.tar.gz
blackbird-op-linux-0efaa7e82f02fe69c05ad28e905f31fc86e6f08e.zip
locks: generic_delete_lease doesn't need a file_lock at all
Ensure that it's OK to pass in a NULL file_lock double pointer on a F_UNLCK request and convert the vfs_setlease F_UNLCK callers to do just that. Finally, turn the BUG_ON in generic_setlease into a WARN_ON_ONCE with an error return. That's a problem we can handle without crashing the box if it occurs. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/filelock.h14
1 files changed, 7 insertions, 7 deletions
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index 59d11c22f076..a0d008070962 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -53,15 +53,15 @@ DECLARE_EVENT_CLASS(filelock_lease,
),
TP_fast_assign(
- __entry->fl = fl;
+ __entry->fl = fl ? fl : NULL;
__entry->s_dev = inode->i_sb->s_dev;
__entry->i_ino = inode->i_ino;
- __entry->fl_next = fl->fl_next;
- __entry->fl_owner = fl->fl_owner;
- __entry->fl_flags = fl->fl_flags;
- __entry->fl_type = fl->fl_type;
- __entry->fl_break_time = fl->fl_break_time;
- __entry->fl_downgrade_time = fl->fl_downgrade_time;
+ __entry->fl_next = fl ? fl->fl_next : NULL;
+ __entry->fl_owner = fl ? fl->fl_owner : NULL;
+ __entry->fl_flags = fl ? fl->fl_flags : 0;
+ __entry->fl_type = fl ? fl->fl_type : 0;
+ __entry->fl_break_time = fl ? fl->fl_break_time : 0;
+ __entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
),
TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu",
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