LU-8993 utils: Use absolute pathname for debug_daemon log file

[fs/lustre-release.git] / lnet / utils / debug.c

diff --git a/lnet/utils/debug.c b/lnet/utils/debug.c
index 8a9f0c2..a0ef7de 100644 (file)
--- a/lnet/utils/debug.c
+++ b/lnet/utils/debug.c
@@ -58,6 +58,7 @@
 #include <libcfs/util/param.h>
 #include <linux/lnet/libcfs_debug.h>
 #include <linux/lnet/lnetctl.h>
+#include <libcfs/util/string.h>
 
 static char rawbuf[8192];
 static char *buf = rawbuf;
@@ -646,6 +647,7 @@ int jt_dbg_debug_daemon(int argc, char **argv)
 {
        int rc;
        int fd;
+       char *resolved_path = NULL;
 
        if (argc <= 1) {
                fprintf(stderr, debug_daemon_usage, argv[0]);
@@ -689,7 +691,15 @@ int jt_dbg_debug_daemon(int argc, char **argv)
                        }
                }
 
-               rc = dbg_write_cmd(fd, argv[2], strlen(argv[2]));
+               rc = cfs_abs_path(argv[2], &resolved_path);
+               if (rc != 0) {
+                       fprintf(stderr,
+                               "%s debug_daemon: cannot resolve path '%s': %s\n",
+                               program_invocation_short_name, argv[2],
+                               strerror(-rc));
+                       goto out;
+               }
+               rc = dbg_write_cmd(fd, resolved_path, strlen(resolved_path));
                if (rc != 0) {
                        fprintf(stderr, "start debug_daemon on %s failed: %s\n",
                                argv[2], strerror(errno));
@@ -714,6 +724,8 @@ int jt_dbg_debug_daemon(int argc, char **argv)
        rc = -1;
 out:
        dbg_close_ctlhandle(fd);
+       if (resolved_path != NULL)
+               free(resolved_path);
        return rc;
 }