From: Miklos Szeredi Date: Tue, 17 Oct 2006 07:10:09 +0000 (-0700) Subject: [PATCH] fuse: fix spurious BUG X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=265126ba9e1f8e217e61d1017c6609f76828aa7a;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] fuse: fix spurious BUG Fix a spurious BUG in an unlikely race, where at least three parallel lookups return the same inode, but with different file type. This has not yet been observed in real life. Allowing unlimited retries could delay fuse_iget() indefinitely, but this is really for the broken userspace filesystem to worry about. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index e9114237f31f..4ee8f72e6380 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -172,7 +172,6 @@ struct inode *fuse_iget(struct super_block *sb, unsigned long nodeid, struct inode *inode; struct fuse_inode *fi; struct fuse_conn *fc = get_fuse_conn_super(sb); - int retried = 0; retry: inode = iget5_locked(sb, nodeid, fuse_inode_eq, fuse_inode_set, &nodeid); @@ -186,11 +185,9 @@ struct inode *fuse_iget(struct super_block *sb, unsigned long nodeid, fuse_init_inode(inode, attr); unlock_new_inode(inode); } else if ((inode->i_mode ^ attr->mode) & S_IFMT) { - BUG_ON(retried); /* Inode has changed type, any I/O on the old should fail */ make_bad_inode(inode); iput(inode); - retried = 1; goto retry; }