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Date: Wed, 23 Aug 2006 20:14:45 +0900
From: Masayuki Saito <m-saito@...s.nec.co.jp>
To: Nathan Scott <nathans@....com>, David Chinner <dgc@....com>
Cc: xfs@....sgi.com, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] Fix i_state of inode is changed after the inode is freed [try #2]
Fix i_state of the inode is changed after the inode is freed.
Signed-off-by: Masayuki Saito <m-saito@...s.nec.co.jp>
Signed-off-by: ASANO Masahiro <masano@...s.nec.co.jp>
---
--- linux-2.6.17.7/fs/xfs/xfs_inode.c.orig 2006-08-21 20:15:58.385211286 +0900
+++ linux-2.6.17.7/fs/xfs/xfs_inode.c 2006-08-21 21:21:22.277033371 +0900
@@ -2751,18 +2751,30 @@ xfs_iunpin(
* call as the inode reclaim may be blocked waiting for
* the inode to become unpinned.
*/
+ int need_iput = 0;
+ struct inode *inode;
+ spin_lock(&ip->i_flags_lock);
if (!(ip->i_flags & (XFS_IRECLAIM|XFS_IRECLAIMABLE))) {
vnode_t *vp = XFS_ITOV_NULL(ip);
/* make sync come back and flush this inode */
if (vp) {
- struct inode *inode = vn_to_inode(vp);
+ inode = vn_to_inode(vp);
- if (!(inode->i_state & I_NEW))
- mark_inode_dirty_sync(inode);
+ if (!(inode->i_state &
+ (I_NEW|I_FREEING|I_CLEAR))) {
+ inode = igrab(inode);
+ if (inode) {
+ need_iput = 1;
+ mark_inode_dirty_sync(inode);
+ }
+ }
}
}
+ spin_unlock(&ip->i_flags_lock);
wake_up(&ip->i_ipin_wait);
+ if (need_iput)
+ iput(inode);
}
}
-
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