add ext3-orphan_lock-2.4.19.patch

diff --git a/lustre/kernel_patches/patches/ext3-orphan_lock-2.4.19.patch b/lustre/kernel_patches/patches/ext3-orphan_lock-2.4.19.patch
new file mode 100644 (file)
index 0000000..05c7e14
--- /dev/null
+++ b/lustre/kernel_patches/patches/ext3-orphan_lock-2.4.19.patch
@@ -0,0 +1,79 @@
+ 0 files changed
+
+--- linux/fs/ext3/namei.c~ext3-orphan_lock-2.4.19      2003-06-04 18:02:30.000000000 +0800
++++ linux-root/fs/ext3/namei.c 2003-06-04 18:06:06.000000000 +0800
+@@ -1747,8 +1747,8 @@ int ext3_orphan_add(handle_t *handle, st
+       struct super_block *sb = inode->i_sb;
+       struct ext3_iloc iloc;
+       int err = 0, rc;
+-      
+-      lock_super(sb);
++
++      down(&EXT3_SB(sb)->s_orphan_lock);
+       if (!list_empty(&EXT3_I(inode)->i_orphan))
+               goto out_unlock;
+ 
+@@ -1796,7 +1796,7 @@ int ext3_orphan_add(handle_t *handle, st
+       jbd_debug(4, "orphan inode %ld will point to %d\n",
+                       inode->i_ino, NEXT_ORPHAN(inode));
+ out_unlock:
+-      unlock_super(sb);
++      up(&EXT3_SB(sb)->s_orphan_lock);
+       ext3_std_error(inode->i_sb, err);
+       return err;
+ }
+@@ -1809,20 +1809,19 @@ int ext3_orphan_del(handle_t *handle, st
+ {
+       struct list_head *prev;
+       struct ext3_inode_info *ei = EXT3_I(inode);
+-      struct ext3_sb_info *sbi;
++      struct ext3_sb_info *sbi = EXT3_SB(inode->i_sb);
+       ino_t ino_next; 
+       struct ext3_iloc iloc;
+       int err = 0;
+       
+-      lock_super(inode->i_sb);
++      down(&sbi->s_orphan_lock);
+       if (list_empty(&ei->i_orphan)) {
+-              unlock_super(inode->i_sb);
++              up(&sbi->s_orphan_lock);
+               return 0;
+       }
+ 
+       ino_next = NEXT_ORPHAN(inode);
+       prev = ei->i_orphan.prev;
+-      sbi = EXT3_SB(inode->i_sb);
+ 
+       jbd_debug(4, "remove inode %ld from orphan list\n", inode->i_ino);
+ 
+@@ -1871,7 +1870,7 @@ int ext3_orphan_del(handle_t *handle, st
+ out_err:      
+       ext3_std_error(inode->i_sb, err);
+ out:
+-      unlock_super(inode->i_sb);
++      up(&sbi->s_orphan_lock);
+       return err;
+ 
+ out_brelse:
+--- linux/fs/ext3/super.c~ext3-orphan_lock-2.4.19      2003-06-04 18:02:22.000000000 +0800
++++ linux-root/fs/ext3/super.c 2003-06-04 18:03:18.000000000 +0800
+@@ -1144,6 +1144,7 @@ struct super_block * ext3_read_super (st
+        */
+       sb->s_op = &ext3_sops;
+       INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
++      sema_init(&sbi->s_orphan_lock, 1);
+ 
+       sb->s_root = 0;
+ 
+--- linux/include/linux/ext3_fs_sb.h~ext3-orphan_lock-2.4.19   2003-06-04 18:02:22.000000000 +0800
++++ linux-root/include/linux/ext3_fs_sb.h      2003-06-04 18:03:18.000000000 +0800
+@@ -69,6 +69,7 @@ struct ext3_sb_info {
+       struct inode * s_journal_inode;
+       struct journal_s * s_journal;
+       struct list_head s_orphan;
++      struct semaphore s_orphan_lock;
+       unsigned long s_commit_interval;
+       struct block_device *journal_bdev;
+ #ifdef CONFIG_JBD_DEBUG
+
+_