From 1a9c4d5d7001638d810dc4c59f2d3e163f4016fb Mon Sep 17 00:00:00 2001
From: yury <yury>
Date: Fri, 27 Oct 2006 07:11:39 +0000
Subject: [PATCH] - drop not directory dentries in ll_drop_dentry(). Let's see
 if it helps with OOM on clients.

---
 lustre/llite/dcache.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lustre/llite/dcache.c b/lustre/llite/dcache.c
index 46e4dbb..5d09d1b 100644
--- a/lustre/llite/dcache.c
+++ b/lustre/llite/dcache.c
@@ -202,6 +202,14 @@ int ll_drop_dentry(struct dentry *dentry)
                  * sys_getcwd() could return -ENOENT -bzzz */
 #ifdef LUSTRE_KERNEL_VERSION
                 dentry->d_flags |= DCACHE_LUSTRE_INVALID;
+
+                /* 
+                 * XXX: Try to drop negative not directory dentries to check if
+                 * this is source of OOM on clients on big numbers of created
+                 * files.  --umka
+                 */
+                if (!dentry->d_inode || !S_ISDIR(dentry->d_inode->i_mode))
+                        __d_drop(dentry);
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
                 __d_drop(dentry);
                 if (dentry->d_inode) {
-- 
1.8.3.1