From fc3d4d7cfbe647cff07e8da119bdfe754d9056ec Mon Sep 17 00:00:00 2001
From: adilger <adilger>
Date: Mon, 9 Feb 2004 22:03:02 +0000
Subject: [PATCH] Update b_smallfix from HEAD (20040209_1433) (merge of
 b_recovery)

---
 lustre/include/linux/lvfs_linux.h | 18 ++++++------
 lustre/lvfs/lvfs_linux.c          | 60 +++++++++++++++++++++------------------
 2 files changed, 42 insertions(+), 36 deletions(-)

diff --git a/lustre/include/linux/lvfs_linux.h b/lustre/include/linux/lvfs_linux.h
index b38d6f0..71fc431 100644
--- a/lustre/include/linux/lvfs_linux.h
+++ b/lustre/include/linux/lvfs_linux.h
@@ -1,3 +1,6 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ */ 
 #ifndef __LVFS_LINUX_H__
 #define __LVFS_LINUX_H__
 
@@ -22,17 +25,14 @@ struct l_file *l_dentry_open(struct obd_run_ctxt *, struct l_dentry *,
                              int flags);
 
 struct l_linux_dirent {
-        ino_t           d_ino;
-        unsigned long   d_off;
-        unsigned short  d_reclen;
-        char            d_name[1]; 
+        struct list_head lld_list;
+        ino_t           lld_ino;
+        unsigned long   lld_off;
+        char            lld_name[LL_FID_NAMELEN];
 };
-
 struct l_readdir_callback {
-        struct l_linux_dirent *current_dir;
-        struct l_linux_dirent *previous;
-        int count;
-        int error;
+        struct l_linux_dirent *lrc_dirent;
+        struct list_head      *lrc_list;
 };
 
 #endif
diff --git a/lustre/lvfs/lvfs_linux.c b/lustre/lvfs/lvfs_linux.c
index 61cd57c..935548e 100644
--- a/lustre/lvfs/lvfs_linux.c
+++ b/lustre/lvfs/lvfs_linux.c
@@ -50,6 +50,10 @@
 #include <linux/obd.h>
 #include <linux/lustre_lib.h>
 
+atomic_t obd_memory;
+int obd_memmax;
+
+
 /* Debugging check only needed during development */
 #ifdef OBD_CTXT_DEBUG
 # define ASSERT_CTXT_MAGIC(magic) LASSERT((magic) == OBD_RUN_CTXT_MAGIC)
@@ -308,49 +312,45 @@ static int l_filldir(void *__buf, const char *name, int namlen, loff_t offset,
 {
         struct l_linux_dirent *dirent;
         struct l_readdir_callback *buf = (struct l_readdir_callback *)__buf;
-        int reclen = size_round(offsetof(struct l_linux_dirent, d_name) + namlen + 1);
         
-        buf->error = -EINVAL;
-        if (reclen > buf->count)
-                return -EINVAL;
-        dirent = buf->previous;
+        dirent = buf->lrc_dirent;
         if (dirent)
-               dirent->d_off = offset; 
-        dirent = buf->current_dir;
-        buf->previous = dirent;
-        dirent->d_ino = ino;
-        dirent->d_reclen = reclen;
-        memcpy(dirent->d_name, name, namlen);
-        ((char *)dirent) += reclen;
-        buf->current_dir = dirent;
-        buf->count -= reclen; 
+               dirent->lld_off = offset; 
+
+        OBD_ALLOC(dirent, sizeof(*dirent));
+
+        list_add_tail(&dirent->lld_list, buf->lrc_list);
+
+        buf->lrc_dirent = dirent;
+        dirent->lld_ino = ino;
+        LASSERT(sizeof(dirent->lld_name) >= namlen + 1);
+        memcpy(dirent->lld_name, name, namlen);
+
         return 0;
 }
 
-long l_readdir(struct file * file, void * dirent, unsigned int count)
+long l_readdir(struct file *file, struct list_head *dentry_list)
 {
-        struct l_linux_dirent * lastdirent;
+        struct l_linux_dirent *lastdirent;
         struct l_readdir_callback buf;
         int error;
 
-        buf.current_dir = (struct l_linux_dirent *)dirent;
-        buf.previous = NULL;
-        buf.count = count;
-        buf.error = 0;
+        buf.lrc_dirent = NULL;
+        buf.lrc_list = dentry_list; 
 
         error = vfs_readdir(file, l_filldir, &buf);
         if (error < 0)
                 return error;
-        error = buf.error;
-        lastdirent = buf.previous;
 
-        if (lastdirent) {
-                lastdirent->d_off = file->f_pos;
-                error = count - buf.count;        
-        }
-        return error; 
+        lastdirent = buf.lrc_dirent;
+        if (lastdirent)
+                lastdirent->lld_off = file->f_pos;
+
+        return 0; 
 }
 EXPORT_SYMBOL(l_readdir);
+EXPORT_SYMBOL(obd_memory);
+EXPORT_SYMBOL(obd_memmax);
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
 
@@ -361,6 +361,12 @@ static int __init lvfs_linux_init(void)
 
 static void __exit lvfs_linux_exit(void)
 {
+        int leaked;
+        ENTRY;
+
+        leaked = atomic_read(&obd_memory);
+        CDEBUG(leaked ? D_ERROR : D_INFO,
+               "obd mem max: %d leaked: %d\n", obd_memmax, leaked);
 
         return;
 }
-- 
1.8.3.1