On Tue, 2007-01-09 at 15:02 +0530, Srinivasa Ds wrote:
> Tomasz Kvarsin wrote:
> > This I got during boot with 2.6.20-rc4:
> > =============================================
> > [ INFO: possible recursive locking detected ]
...
> So below patch should fix this problem,please test this. Let me know
> your comments on this.
I'm sure there are several other places in the jfs code that need the
same treatment. I've put this off too long already. I'll get a
comprehensive lock annotation patch out today, starting with this one.
>
> Signed-off-by: Srinivasa DS <[email protected]>
Thanks,
Shaggy
>
>
> plain text document attachment (jfs.fix)
> namei.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> Index: linux-2.6.20-rc4/fs/jfs/namei.c
> ===================================================================
> --- linux-2.6.20-rc4.orig/fs/jfs/namei.c
> +++ linux-2.6.20-rc4/fs/jfs/namei.c
> @@ -104,8 +104,8 @@ static int jfs_create(struct inode *dip,
>
> tid = txBegin(dip->i_sb, 0);
>
> - mutex_lock(&JFS_IP(dip)->commit_mutex);
> - mutex_lock(&JFS_IP(ip)->commit_mutex);
> + mutex_lock_nested(&JFS_IP(dip)->commit_mutex, I_MUTEX_PARENT);
> + mutex_lock_nested(&JFS_IP(ip)->commit_mutex, I_MUTEX_CHILD);
>
> rc = jfs_init_acl(tid, ip, dip);
> if (rc)
--
David Kleikamp
IBM Linux Technology Center
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