LU-3110 osd-ldiskfs: Dynamic LBUG in osd declares tracking

[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_lproc.c

diff --git a/lustre/osd-ldiskfs/osd_lproc.c b/lustre/osd-ldiskfs/osd_lproc.c
index 0f522d8..773b3e7 100644 (file)
--- a/lustre/osd-ldiskfs/osd_lproc.c
+++ b/lustre/osd-ldiskfs/osd_lproc.c
@@ -442,6 +442,31 @@ static int lprocfs_osd_wr_auto_scrub(struct file *file, const char *buffer,
        return count;
 }
 
+static int lprocfs_osd_rd_track_declares_assert(char *page, char **start,
+                                               off_t off, int count,
+                                               int *eof, void *data)
+{
+       *eof = 1;
+
+       return snprintf(page, count, "%d\n", ldiskfs_track_declares_assert);
+}
+
+static int lprocfs_osd_wr_track_declares_assert(struct file *file,
+                                               const char *buffer,
+                                               unsigned long count, void *data)
+{
+       int     track_declares_assert;
+       int     rc;
+
+       rc = lprocfs_write_helper(buffer, count, &track_declares_assert);
+       if (rc != 0)
+               return rc;
+
+       ldiskfs_track_declares_assert = !!track_declares_assert;
+
+       return count;
+}
+
 static int lprocfs_osd_rd_oi_scrub(char *page, char **start, off_t off,
                                   int count, int *eof, void *data)
 {
@@ -514,6 +539,9 @@ struct lprocfs_vars lprocfs_osd_obd_vars[] = {
 
 struct lprocfs_vars lprocfs_osd_module_vars[] = {
         { "num_refs",        lprocfs_rd_numrefs,     0, 0 },
+       { "track_declares_assert",      lprocfs_osd_rd_track_declares_assert,
+                                       lprocfs_osd_wr_track_declares_assert,
+                                       0 },
         { 0 }
 };