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authorSteven Whitehouse <swhiteho@redhat.com>2011-04-14 17:09:52 +0400
committerSteven Whitehouse <swhiteho@redhat.com>2011-04-20 12:00:59 +0400
commit627c10b7e471b5dcfb7101d6cc74d219619c9bc4 (patch)
tree28b485c2ce46035da616c1a20f4ac92bae96427a /fs/gfs2/meta_io.c
parentdba898b02defa66e5fe493d58ec0293a940f9c93 (diff)
downloadlinux-627c10b7e471b5dcfb7101d6cc74d219619c9bc4.tar.xz
GFS2: Improve tracing support (adds two flags)
This adds support for two new flags. One keeps track of whether the glock is on the LRU list or not. The other isn't really a flag as such, but an indication of whether the glock has an attached object or not. This indication is reported without any locking, which is ok since we do not dereference the object pointer but merely report whether it is NULL or not. Also, this fixes one place where a tracepoint was missing, which was at the point we remove deallocated blocks from the journal. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/meta_io.c')
-rw-r--r--fs/gfs2/meta_io.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 675349b5a133..747238cd9f96 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -31,6 +31,7 @@
#include "rgrp.h"
#include "trans.h"
#include "util.h"
+#include "trace_gfs2.h"
static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wbc)
{
@@ -310,6 +311,7 @@ void gfs2_remove_from_journal(struct buffer_head *bh, struct gfs2_trans *tr, int
struct gfs2_bufdata *bd = bh->b_private;
if (test_clear_buffer_pinned(bh)) {
+ trace_gfs2_pin(bd, 0);
atomic_dec(&sdp->sd_log_pinned);
list_del_init(&bd->bd_le.le_list);
if (meta) {