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SubjectRe: "fs/namei.c: keep track of nd->root refcount status" causes boot panic
On Tue, Sep 03, 2019 at 01:37:19PM +0100, Al Viro wrote:
> On Tue, Sep 03, 2019 at 12:21:36AM -0400, Qian Cai wrote:
> > The linux-next commit "fs/namei.c: keep track of nd->root refcount status” [1] causes boot panic on all
> > architectures here on today’s linux-next (0902). Reverted it will fix the issue.
> <swearing>
> OK, I see what's going on. Incremental to be folded in:

... or, better yet,

diff --git a/include/linux/namei.h b/include/linux/namei.h
index 20ce2f917ef4..397a08ade6a2 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
#define LOOKUP_NO_REVAL 0x0080
#define LOOKUP_JUMPED 0x1000
#define LOOKUP_ROOT 0x2000
-#define LOOKUP_ROOT_GRABBED 0x4000
+#define LOOKUP_ROOT_GRABBED 0x0008

extern int path_pts(struct path *path);

to avoid breaking out-of-tree stuff for now good reason.
Folded and pushed out.

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