aio: simplify KIOCB_KEY handling

No need to pass the key field to lookup_iocb to compare it with KIOCB_KEY,
as we can do that right after retrieving it from userspace.  Also move the
KIOCB_KEY definition to aio.c as it is an internal value not used by any
other place in the kernel.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2018-03-30 11:19:25 +02:00
parent 3deb642f0d
commit f3a2752a43
2 changed files with 7 additions and 9 deletions

View file

@ -8,8 +8,6 @@ struct kioctx;
struct kiocb;
struct mm_struct;
#define KIOCB_KEY 0
typedef int (kiocb_cancel_fn)(struct kiocb *);
/* prototypes */