Commit 42271ca3 authored by Giulio Benetti's avatar Giulio Benetti Committed by Song Liu
Browse files

lib/raid6: drop RAID6_USE_EMPTY_ZERO_PAGE



RAID6_USE_EMPTY_ZERO_PAGE is unused and hardcoded to 0, so let's drop it.

Signed-off-by: default avatarGiulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarSong Liu <song@kernel.org>
parent 9487a0f6
Loading
Loading
Loading
Loading
+0 −8
Original line number Diff line number Diff line
@@ -10,17 +10,9 @@

#ifdef __KERNEL__

/* Set to 1 to use kernel-wide empty_zero_page */
#define RAID6_USE_EMPTY_ZERO_PAGE 0
#include <linux/blkdev.h>

/* We need a pre-zeroed page... if we don't want to use the kernel-provided
   one define it here */
#if RAID6_USE_EMPTY_ZERO_PAGE
# define raid6_empty_zero_page empty_zero_page
#else
extern const char raid6_empty_zero_page[PAGE_SIZE];
#endif

#else /* ! __KERNEL__ */
/* Used for testing in user space */
+0 −2
Original line number Diff line number Diff line
@@ -18,12 +18,10 @@
#else
#include <linux/module.h>
#include <linux/gfp.h>
#if !RAID6_USE_EMPTY_ZERO_PAGE
/* In .bss so it's zeroed */
const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(256)));
EXPORT_SYMBOL(raid6_empty_zero_page);
#endif
#endif

struct raid6_calls raid6_call;
EXPORT_SYMBOL_GPL(raid6_call);