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

include/linux/raid/pq.h

+0 −8
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@@ -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 */

lib/raid6/algos.c

+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);