* kern_path() returns error in kernel 4.4
@ 2016-06-13 9:12 dongke di
2016-06-13 15:40 ` Al Viro
0 siblings, 1 reply; 2+ messages in thread
From: dongke di @ 2016-06-13 9:12 UTC (permalink / raw)
To: linux-kernel
struct path path;
int r = kern_path( "/tmp/abc.txt", LOOKUP_FOLLOW | LOOKUP_PARENT, &path );
The file abc.txt does not exist.
On Ubuntu 14.04 ( kernel 3.13 ), r is zero (succed).
On Ubuntu 16.04 ( kernel 4.4 ), r is -2 ( fail).
Is it a bug or other else ?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kern_path() returns error in kernel 4.4
2016-06-13 9:12 kern_path() returns error in kernel 4.4 dongke di
@ 2016-06-13 15:40 ` Al Viro
0 siblings, 0 replies; 2+ messages in thread
From: Al Viro @ 2016-06-13 15:40 UTC (permalink / raw)
To: dongke di; +Cc: linux-kernel
On Mon, Jun 13, 2016 at 05:12:27PM +0800, dongke di wrote:
> struct path path;
> int r = kern_path( "/tmp/abc.txt", LOOKUP_FOLLOW | LOOKUP_PARENT, &path );
>
> The file abc.txt does not exist.
>
> On Ubuntu 14.04 ( kernel 3.13 ), r is zero (succed).
> On Ubuntu 16.04 ( kernel 4.4 ), r is -2 ( fail).
>
> Is it a bug or other else ?
It is - in the code that passes LOOKUP_PARENT to kern_path(). What are
is it trying to do there? Need more context...
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-06-13 9:12 kern_path() returns error in kernel 4.4 dongke di
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