The patch titled
Subject: mm/kasan/kasan.c: rename XXX_is_zero to XXX_is_nonzero
has been added to the -mm tree. Its filename is
mm-kasan-rename-xxx_is_zero-to-xxx_is_nonzero.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-kasan-rename-xxx_is_zero-to-xxx_is_nonzero.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-kasan-rename-xxx_is_zero-to-xxx_is_nonzero.patch
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------------------------------------------------------
From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Subject: mm/kasan/kasan.c: rename XXX_is_zero to XXX_is_nonzero
They return positive value, that is, true, if non-zero value is found.
Rename them to reduce confusion.
Link: http://lkml.kernel.org/r/20170516012350.GA16015@js1304-desktop
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/kasan.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff -puN mm/kasan/kasan.c~mm-kasan-rename-xxx_is_zero-to-xxx_is_nonzero mm/kasan/kasan.c
--- a/mm/kasan/kasan.c~mm-kasan-rename-xxx_is_zero-to-xxx_is_nonzero
+++ a/mm/kasan/kasan.c
@@ -224,7 +224,7 @@ static __always_inline bool memory_is_po
return false;
}
-static __always_inline unsigned long bytes_is_zero(const u8 *start,
+static __always_inline unsigned long bytes_is_nonzero(const u8 *start,
size_t size)
{
while (size) {
@@ -237,7 +237,7 @@ static __always_inline unsigned long byt
return 0;
}
-static __always_inline unsigned long memory_is_zero(const void *start,
+static __always_inline unsigned long memory_is_nonzero(const void *start,
const void *end)
{
unsigned int words;
@@ -245,11 +245,11 @@ static __always_inline unsigned long mem
unsigned int prefix = (unsigned long)start % 8;
if (end - start <= 16)
- return bytes_is_zero(start, end - start);
+ return bytes_is_nonzero(start, end - start);
if (prefix) {
prefix = 8 - prefix;
- ret = bytes_is_zero(start, prefix);
+ ret = bytes_is_nonzero(start, prefix);
if (unlikely(ret))
return ret;
start += prefix;
@@ -258,12 +258,12 @@ static __always_inline unsigned long mem
words = (end - start) / 8;
while (words) {
if (unlikely(*(u64 *)start))
- return bytes_is_zero(start, 8);
+ return bytes_is_nonzero(start, 8);
start += 8;
words--;
}
- return bytes_is_zero(start, (end - start) % 8);
+ return bytes_is_nonzero(start, (end - start) % 8);
}
static __always_inline bool memory_is_poisoned_n(unsigned long addr,
@@ -271,7 +271,7 @@ static __always_inline bool memory_is_po
{
unsigned long ret;
- ret = memory_is_zero(kasan_mem_to_shadow((void *)addr),
+ ret = memory_is_nonzero(kasan_mem_to_shadow((void *)addr),
kasan_mem_to_shadow((void *)addr + size - 1) + 1);
if (unlikely(ret)) {
_
Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are
zram-introduce-zram_entry-to-prepare-dedup-functionality.patch
zram-implement-deduplication-in-zram.patch
zram-make-deduplication-feature-optional.patch
zram-compare-all-the-entries-with-same-checksum-for-deduplication.patch
mm-kasan-use-kasan_zero_pud-for-p4d-table.patch
mm-kasan-rename-xxx_is_zero-to-xxx_is_nonzero.patch
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