linux-kernel - [PATCH] scripts/gdb: fix lx-lsmod refcnt

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Date:	Wed, 20 May 2015 16:42:15 +0200
From:	Adrien Schildknecht <adrien+dev@...ischi.me>
To:	jan.kiszka@...mens.com, akpm@...ux-foundation.org,
	pktoss@...il.com, adrien+dev@...ischi.me
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] scripts/gdb: fix lx-lsmod refcnt

Commit 2f35c41f58a9 ("module: Replace module_ref with atomic_t refcnt")
changes the way refcnt is handled but did not update the gdb script to use
the new variable.

Since refcnt is not per-cpu anymore, we can directly read its value.

Signed-off-by: Adrien Schildknecht <adrien+dev@...ischi.me>
---
 scripts/gdb/linux/modules.py | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/scripts/gdb/linux/modules.py b/scripts/gdb/linux/modules.py
index a1504c4..25db8cf 100644
--- a/scripts/gdb/linux/modules.py
+++ b/scripts/gdb/linux/modules.py
@@ -73,18 +73,11 @@ class LxLsmod(gdb.Command):
                 "        " if utils.get_long_type().sizeof == 8 else ""))
 
         for module in module_list():
-            ref = 0
-            module_refptr = module['refptr']
-            for cpu in cpus.cpu_list("cpu_possible_mask"):
-                refptr = cpus.per_cpu(module_refptr, cpu)
-                ref += refptr['incs']
-                ref -= refptr['decs']
-
             gdb.write("{address} {name:<19} {size:>8}  {ref}".format(
                 address=str(module['module_core']).split()[0],
                 name=module['name'].string(),
                 size=str(module['core_size']),
-                ref=str(ref)))
+                ref=str(module['refcnt']['counter'])))
 
             source_list = module['source_list']
             t = self._module_use_type.get_type().pointer()
-- 
2.4.1

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