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linux/fs.h: move member alignment check next to definition of struct filename

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Instead of doing this compile-time check in some slightly arbitrary user
of struct filename, put it next to the definition.

Link: http://lkml.kernel.org/r/20190208203015.29702-3-linux@rasmusvillemoes.dk
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rasmus Villemoes 2019-03-07 16:27:07 -08:00 committed by Linus Torvalds
parent ef27ac18b3
commit f1fffbd447
2 changed files with 3 additions and 2 deletions
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2
fs/namei.c
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@ -39,7 +39,6 @@
#include <linux/bitops.h>
#include <linux/init_task.h>
#include <linux/uaccess.h>
#include <linux/build_bug.h>
#include "internal.h"
#include "mount.h"
@ -131,7 +130,6 @@ getname_flags(const char __user *filename, int flags, int *empty)
struct filename *result;
char *kname;
int len;
BUILD_BUG_ON(offsetof(struct filename, iname) % sizeof(long) != 0);
result = audit_reusename(filename);
if (result)

3
include/linux/fs.h
View File

@ -37,6 +37,8 @@
#include <linux/uuid.h>
#include <linux/errseq.h>
#include <linux/ioprio.h>
#include <linux/build_bug.h>
#include <linux/stddef.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@ -2493,6 +2495,7 @@ struct filename {
struct audit_names *aname;
const char iname[];
};
static_assert(offsetof(struct filename, iname) % sizeof(long) == 0);
extern long vfs_truncate(const struct path *, loff_t);
extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,