The patch titled
Subject: userfaultfd: fix UFFDIO_CONTINUE ioctl request definition
has been added to the -mm tree. Its filename is
userfaultfd-fix-uffdio_continue-ioctl-request-definition.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/userfaultfd-fix-uffdio_continue-ioctl-request-definition.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/userfaultfd-fix-uffdio_continue-ioctl-request-definition.patch
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------------------------------------------------------
From: Gleb Fotengauer-Malinovskiy <glebfm@xxxxxxxxxxxx>
Subject: userfaultfd: fix UFFDIO_CONTINUE ioctl request definition
This ioctl request writes to uffdio_continue structure which justifies
_IOC_WRITE flag. See NOTEs in include/uapi/asm-generic/ioctl.h for more
information.
Link: https://lkml.kernel.org/r/20210531140146.481553-1-glebfm@xxxxxxxxxxxx
Fixes: f619147104c8 ("userfaultfd: add UFFDIO_CONTINUE ioctl")
Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@xxxxxxxxxxxx>
Acked-by: Peter Xu <peterx@xxxxxxxxxx>
Cc: Axel Rasmussen <axelrasmussen@xxxxxxxxxx>
Cc: Daniel Colascione <dancol@xxxxxxxxxx>
Cc: Lokesh Gidra <lokeshgidra@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/uapi/linux/userfaultfd.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/uapi/linux/userfaultfd.h~userfaultfd-fix-uffdio_continue-ioctl-request-definition
+++ a/include/uapi/linux/userfaultfd.h
@@ -81,8 +81,8 @@
struct uffdio_zeropage)
#define UFFDIO_WRITEPROTECT _IOWR(UFFDIO, _UFFDIO_WRITEPROTECT, \
struct uffdio_writeprotect)
-#define UFFDIO_CONTINUE _IOR(UFFDIO, _UFFDIO_CONTINUE, \
- struct uffdio_continue)
+#define UFFDIO_CONTINUE _IOWR(UFFDIO, _UFFDIO_CONTINUE, \
+ struct uffdio_continue)
/* read() structure */
struct uffd_msg {
_
Patches currently in -mm which might be from glebfm@xxxxxxxxxxxx are
userfaultfd-fix-uffdio_continue-ioctl-request-definition.patch
