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may_follow_link() should use nd->inode
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 5 Aug 2015 03:23:50 +0000 (23:23 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 5 Aug 2015 03:23:50 +0000 (23:23 -0400)
commitaa65fa35ba6b589a12a6025739c2d935dd743b5a
tree08badbdb13e71dfd4a60d1bb4545f115ec2277b7
parent97242f99a013950af63effa0732f8ef7db4e31ec
may_follow_link() should use nd->inode

Now that we can get there in RCU mode, we shouldn't play with
nd->path.dentry->d_inode - it's not guaranteed to be stable.
Use nd->inode instead.

Reported-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/namei.c