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path: root/fs/gfs2/glock.c
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Diffstat (limited to 'fs/gfs2/glock.c')
-rw-r--r--fs/gfs2/glock.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 2bf62bcc518..297421c0427 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -39,6 +39,8 @@
#include "super.h"
#include "util.h"
#include "bmap.h"
+#define CREATE_TRACE_POINTS
+#include "trace_gfs2.h"
struct gfs2_gl_hash_bucket {
struct hlist_head hb_list;
@@ -155,7 +157,7 @@ static void glock_free(struct gfs2_glock *gl)
if (aspace)
gfs2_aspace_put(aspace);
-
+ trace_gfs2_glock_put(gl);
sdp->sd_lockstruct.ls_ops->lm_put_lock(gfs2_glock_cachep, gl);
}
@@ -317,14 +319,17 @@ restart:
return 2;
gh->gh_error = ret;
list_del_init(&gh->gh_list);
+ trace_gfs2_glock_queue(gh, 0);
gfs2_holder_wake(gh);
goto restart;
}
set_bit(HIF_HOLDER, &gh->gh_iflags);
+ trace_gfs2_promote(gh, 1);
gfs2_holder_wake(gh);
goto restart;
}
set_bit(HIF_HOLDER, &gh->gh_iflags);
+ trace_gfs2_promote(gh, 0);
gfs2_holder_wake(gh);
continue;
}
@@ -354,6 +359,7 @@ static inline void do_error(struct gfs2_glock *gl, const int ret)
else
continue;
list_del_init(&gh->gh_list);
+ trace_gfs2_glock_queue(gh, 0);
gfs2_holder_wake(gh);
}
}
@@ -422,6 +428,7 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
int rv;
spin_lock(&gl->gl_spin);
+ trace_gfs2_glock_state_change(gl, state);
state_change(gl, state);
gh = find_first_waiter(gl);
@@ -851,6 +858,7 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
gl->gl_demote_state != state) {
gl->gl_demote_state = LM_ST_UNLOCKED;
}
+ trace_gfs2_demote_rq(gl);
}
/**
@@ -936,6 +944,7 @@ fail:
goto do_cancel;
return;
}
+ trace_gfs2_glock_queue(gh, 1);
list_add_tail(&gh->gh_list, insert_pt);
do_cancel:
gh = list_entry(gl->gl_holders.next, struct gfs2_holder, gh_list);
@@ -1032,6 +1041,7 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
!test_bit(GLF_DEMOTE, &gl->gl_flags))
fast_path = 1;
}
+ trace_gfs2_glock_queue(gh, 0);
spin_unlock(&gl->gl_spin);
if (likely(fast_path))
return;