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f2fs: Use struct_size() to improve f2fs_acl_clone()

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Use struct_size() to calculate the number of bytes to allocate for a
cloned acl.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Thorsten Blum 2024-10-07 13:46:37 +02:00 committed by Jaegeuk Kim
parent b19ee72722
commit 527a4ded09
1 changed files with 2 additions and 3 deletions
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5
fs/f2fs/acl.c
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@ -296,9 +296,8 @@ static struct posix_acl *f2fs_acl_clone(const struct posix_acl *acl,
struct posix_acl *clone = NULL;
if (acl) {
int size = sizeof(struct posix_acl) + acl->a_count *
sizeof(struct posix_acl_entry);
clone = kmemdup(acl, size, flags);
clone = kmemdup(acl, struct_size(acl, a_entries, acl->a_count),
flags);
if (clone)
refcount_set(&clone->a_refcount, 1);
}