From 4a3b0a490d49ada8bbf3f426be1a0ace4dcd0a55 Mon Sep 17 00:00:00 2001 From: Jan Blunck Date: Sat, 10 Feb 2007 01:44:59 -0800 Subject: [PATCH] [PATCH] igrab() should check for I_CLEAR When igrab() is calling __iget() on an inode it should check if clear_inode() has been called on the inode already. Otherwise there is a race window between clear_inode() and destroy_inode() where igrab() calls __iget() which leads to already free inodes on the inode lists. Signed-off-by: Vandana Rungta Signed-off-by: Jan Blunck Cc: Al Viro Cc: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/inode.c b/fs/inode.c index 6cacdab25e0a..062c5f9b6a69 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -709,7 +709,7 @@ EXPORT_SYMBOL(iunique); struct inode *igrab(struct inode *inode) { spin_lock(&inode_lock); - if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) + if (!(inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE))) __iget(inode); else /* -- 2.39.2