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authorJeff Layton <jeff.layton@primarydata.com>2016-01-06 21:26:10 -0500
committerJeff Layton <jeff.layton@primarydata.com>2016-01-08 11:38:13 -0500
commit1890910fd06fefbfa1cbeaf88357783914af71f6 (patch)
treeef28622f639666a05e89052573f595ca0e45c090 /include/trace
parent0752ba807b04ccd69cb4bc8bbf829a80ee208a3c (diff)
locks: sprinkle some tracepoints around the file locking code
Add some tracepoints around the POSIX locking code. These were useful when tracking down problems when handling the race between setlk and close. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Acked-by: "J. Bruce Fields" <bfields@fieldses.org>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/filelock.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index c72f2dc01d0b..63a7680347cb 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -34,6 +34,83 @@
{ F_WRLCK, "F_WRLCK" }, \
{ F_UNLCK, "F_UNLCK" })
+TRACE_EVENT(locks_get_lock_context,
+ TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx),
+
+ TP_ARGS(inode, type, ctx),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, i_ino)
+ __field(dev_t, s_dev)
+ __field(unsigned char, type)
+ __field(struct file_lock_context *, ctx)
+ ),
+
+ TP_fast_assign(
+ __entry->s_dev = inode->i_sb->s_dev;
+ __entry->i_ino = inode->i_ino;
+ __entry->type = type;
+ __entry->ctx = ctx;
+ ),
+
+ TP_printk("dev=0x%x:0x%x ino=0x%lx type=%s ctx=%p",
+ MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
+ __entry->i_ino, show_fl_type(__entry->type), __entry->ctx)
+);
+
+DECLARE_EVENT_CLASS(filelock_lock,
+ TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
+
+ TP_ARGS(inode, fl, ret),
+
+ TP_STRUCT__entry(
+ __field(struct file_lock *, fl)
+ __field(unsigned long, i_ino)
+ __field(dev_t, s_dev)
+ __field(struct file_lock *, fl_next)
+ __field(fl_owner_t, fl_owner)
+ __field(unsigned int, fl_pid)
+ __field(unsigned int, fl_flags)
+ __field(unsigned char, fl_type)
+ __field(loff_t, fl_start)
+ __field(loff_t, fl_end)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->fl = fl ? fl : NULL;
+ __entry->s_dev = inode->i_sb->s_dev;
+ __entry->i_ino = inode->i_ino;
+ __entry->fl_next = fl ? fl->fl_next : NULL;
+ __entry->fl_owner = fl ? fl->fl_owner : NULL;
+ __entry->fl_pid = fl ? fl->fl_pid : 0;
+ __entry->fl_flags = fl ? fl->fl_flags : 0;
+ __entry->fl_type = fl ? fl->fl_type : 0;
+ __entry->fl_start = fl ? fl->fl_start : 0;
+ __entry->fl_end = fl ? fl->fl_end : 0;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_pid=%u fl_flags=%s fl_type=%s fl_start=%lld fl_end=%lld ret=%d",
+ __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
+ __entry->i_ino, __entry->fl_next, __entry->fl_owner,
+ __entry->fl_pid, show_fl_flags(__entry->fl_flags),
+ show_fl_type(__entry->fl_type),
+ __entry->fl_start, __entry->fl_end, __entry->ret)
+);
+
+DEFINE_EVENT(filelock_lock, posix_lock_inode,
+ TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
+ TP_ARGS(inode, fl, ret));
+
+DEFINE_EVENT(filelock_lock, fcntl_setlk,
+ TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
+ TP_ARGS(inode, fl, ret));
+
+DEFINE_EVENT(filelock_lock, locks_remove_posix,
+ TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
+ TP_ARGS(inode, fl, ret));
+
DECLARE_EVENT_CLASS(filelock_lease,
TP_PROTO(struct inode *inode, struct file_lock *fl),