diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-03-17 17:02:28 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-09 22:57:54 -0700 |
| commit | 1857fcc847443b0238cb64584b43d8c3a9049a0a (patch) | |
| tree | facc98106e54bfaaa4c769772f912aab58255c17 /include/linux | |
| parent | 41a7f737685eed2700654720d3faaffdf0132135 (diff) | |
lib/raid6: replace custom zero page with ZERO_PAGE
Use the system-wide zero page instead of a custom zero page.
[herbert@gondor.apana.org.au: update lib/raid6/recov_rvv.c, per Klara]
Link: https://lkml.kernel.org/r/aFkUnXWtxcgOTVkw@gondor.apana.org.au
Link: https://lkml.kernel.org/r/Z9flJNkWQICx0PXk@gondor.apana.org.au
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Song Liu <song@kernel.org>
Cc: Yu Kuai <yukuai3@huawei.com>
Cc: Klara Modin <klarasmodin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/raid/pq.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index 72ff44cca864..2467b3be15c9 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -11,8 +11,13 @@ #ifdef __KERNEL__ #include <linux/blkdev.h> +#include <linux/mm.h> -extern const char raid6_empty_zero_page[PAGE_SIZE]; +/* This should be const but the raid6 code is too convoluted for that. */ +static inline void *raid6_get_zero_page(void) +{ + return page_address(ZERO_PAGE(0)); +} #else /* ! __KERNEL__ */ /* Used for testing in user space */ @@ -191,6 +196,11 @@ static inline uint32_t raid6_jiffies(void) return tv.tv_sec*1000 + tv.tv_usec/1000; } +static inline void *raid6_get_zero_page(void) +{ + return raid6_empty_zero_page; +} + #endif /* ! __KERNEL__ */ #endif /* LINUX_RAID_RAID6_H */ |