github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-01 02:53:36 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ovl: Replace offsetof() with struct_size() in ovl_stack_free()

Browse Source 
Compared to offsetof(), struct_size() provides additional compile-time
checks for structs with flexible arrays (e.g., __must_be_array()).

No functional changes intended.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Thorsten Blum 2025-05-03 13:52:44 +02:00 committed by Miklos Szeredi
parent 5aaf6a8cc3
commit 7314166ee7
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
fs/overlayfs/util.c
View File

@ -15,6 +15,7 @@
#include <linux/uuid.h>
#include <linux/namei.h>
#include <linux/ratelimit.h>
#include <linux/overflow.h>
#include "overlayfs.h"
/* Get write access to upper mnt - may fail if upper sb was remounted ro */
@ -145,9 +146,9 @@ void ovl_stack_free(struct ovl_path *stack, unsigned int n)
struct ovl_entry *ovl_alloc_entry(unsigned int numlower)
{
size_t size = offsetof(struct ovl_entry, __lowerstack[numlower]);
struct ovl_entry *oe = kzalloc(size, GFP_KERNEL);
struct ovl_entry *oe;
oe = kzalloc(struct_size(oe, __lowerstack, numlower), GFP_KERNEL);
if (oe)
oe->__numlower = numlower;