Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'tomoyo-pr-20251212' of git://git.code.sf.net/p/tomoyo/tomoyo
Pull tomoyo update from Tetsuo Handa:
"Trivial optimization"
* tag 'tomoyo-pr-20251212' of git://git.code.sf.net/p/tomoyo/tomoyo:
tomoyo: Use local kmap in tomoyo_dump_page()
+2
-7
+2
-7
security/tomoyo/domain.c
+2
-7
security/tomoyo/domain.c
···
934
934
#endif
935
935
if (page != dump->page) {
936
936
const unsigned int offset = pos % PAGE_SIZE;
937
-
/*
938
-
* Maybe kmap()/kunmap() should be used here.
939
-
* But remove_arg_zero() uses kmap_atomic()/kunmap_atomic().
940
-
* So do I.
941
-
*/
942
-
char *kaddr = kmap_atomic(page);
937
+
char *kaddr = kmap_local_page(page);
943
938
944
939
dump->page = page;
945
940
memcpy(dump->data + offset, kaddr + offset,
946
941
PAGE_SIZE - offset);
947
-
kunmap_atomic(kaddr);
942
+
kunmap_local(kaddr);
948
943
}
949
944
/* Same with put_arg_page(page) in fs/exec.c */
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945
#ifdef CONFIG_MMU