From 5f5a5ec8805598bb59fa9bb0a8d777c1cde95a35 Mon Sep 17 00:00:00 2001
From: nic <nic>
Date: Thu, 18 Mar 2004 01:31:33 +0000
Subject: [PATCH] b=2123

add dcache_refcount_debug patch to hp-pnnl series
---
 .../patches/dcache_refcount_debug.patch            | 24 ++++++++++++++++++++++
 lustre/kernel_patches/series/hp-pnnl-2.4.20        |  1 +
 2 files changed, 25 insertions(+)
 create mode 100644 lustre/kernel_patches/patches/dcache_refcount_debug.patch

diff --git a/lustre/kernel_patches/patches/dcache_refcount_debug.patch b/lustre/kernel_patches/patches/dcache_refcount_debug.patch
new file mode 100644
index 0000000..0eddc23
--- /dev/null
+++ b/lustre/kernel_patches/patches/dcache_refcount_debug.patch
@@ -0,0 +1,24 @@
+--- ./fs/dcache.c.orig	2004-01-30 14:54:45.000000000 -0700
++++ ./fs/dcache.c	2004-02-20 14:49:18.000000000 -0700
+@@ -348,8 +348,20 @@
+ 		dentry_stat.nr_unused--;
+ 
+ 		/* Unused dentry with a count? */
+-		if (atomic_read(&dentry->d_count))
++		if (atomic_read(&dentry->d_count)) {
++			struct inode *inode = dentry->d_inode;
++			printk(KERN_CRIT "dentry %*s %p->%lu/%u(%p/%s) ct %d\n",
++			       dentry->d_name.len, dentry->d_name.name, dentry,
++			       inode ? inode->i_ino : 0,
++			       inode ? inode->i_generation : 0, inode,
++			       inode ? inode->i_sb ?
++					inode->i_sb->s_type->name : "" : "",
++			       atomic_read(&dentry->d_count));
++			spin_unlock(&dcache_lock);
++			set_task_state(current, TASK_UNINTERRUPTIBLE);
++			schedule();
+ 			BUG();
++		}
+ 
+ 		prune_one_dentry(dentry);
+ 		if (!--count)
diff --git a/lustre/kernel_patches/series/hp-pnnl-2.4.20 b/lustre/kernel_patches/series/hp-pnnl-2.4.20
index f1130c6..cb9c74c 100644
--- a/lustre/kernel_patches/series/hp-pnnl-2.4.20
+++ b/lustre/kernel_patches/series/hp-pnnl-2.4.20
@@ -43,3 +43,4 @@ ext3-xattr-ptr-arith-fix.patch
 procfs-ndynamic-2.4.patch
 ext3-truncate-buffer-head.patch
 inode-max-readahead-2.4.24.patch
+dcache_refcount_debug.patch
-- 
1.8.3.1