[PATCH] 2.5.29: Oops at boot after mount of root fs (JFS)

[Dave Kleikamp <shaggy@austin.ibm.com>]

On Monday 29 July 2002 10:16, Axel Siebenwirth wrote:
> Hi,
>
> I get an oops during boot of 2.5.29. Since I have problems with JFS I
> guessed it might be related to JFS. It happens right after rw mount
> of my jfs root filesystem. At another attempt to boot not the rm
> process oops but mount itself oopsed.

JFS had two incorrect calls to d_delete in jfs_rmdir and jfs_unlink.  They
were needed in the 2.2 kernel, and somehow they didn't do any apparent
harm until now.

Here is that patch I sent to Linus:

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.511   -> 1.512  
#	      fs/jfs/namei.c	1.13    -> 1.14   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/07/29	shaggy@kleikamp.austin.ibm.com	1.512
# Remove d_delete call from jfs_rmdir and jfs_unlink
# 
# jfs_rmdir and jfs_unlink have always called d_delete, but it hasn't
# caused a problem until 2.5.28.  The call is an artifact of the 2.2
# kernel, which had gone unnoticed in 2.4 and 2.5.
# --------------------------------------------
#
diff -Nru a/fs/jfs/namei.c b/fs/jfs/namei.c
--- a/fs/jfs/namei.c	Mon Jul 29 09:18:53 2002
+++ b/fs/jfs/namei.c	Mon Jul 29 09:18:53 2002
@@ -399,8 +399,6 @@
 
 	IWRITE_UNLOCK(dip);
 
-	d_delete(dentry);
-
       out2:
 	free_UCSname(&dname);
 
@@ -542,8 +540,6 @@
 	}
 
 	IWRITE_UNLOCK(dip);
-
-	d_delete(dentry);
 
       out1:
 	free_UCSname(&dname);