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md: remove __clear_page_buffers and use attach/detach_page_private 

After introduction attach/detach_page_private in pagemap.h, we can remove
the duplicated code and call the new functions.

Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Song Liu <song@kernel.org>
Link: http://lkml.kernel.org/r/20200517214718.468-3-guoqing.jiang@cloud.ionos.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Guoqing Jiang 2020-06-01 21:47:42 -07:00 committed by Linus Torvalds
parent b03143accd
commit db2c1d86cc
1 changed files with 2 additions and 10 deletions
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12
drivers/md/md-bitmap.c
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@ -324,14 +324,6 @@ static void end_bitmap_write(struct buffer_head *bh, int uptodate)
wake_up(&bitmap->write_wait);
}
/* copied from buffer.c */
static void
__clear_page_buffers(struct page *page)
{
ClearPagePrivate(page);
set_page_private(page, 0);
put_page(page);
}
static void free_buffers(struct page *page)
{
struct buffer_head *bh;
@ -345,7 +337,7 @@ static void free_buffers(struct page *page)
free_buffer_head(bh);
bh = next;
}
__clear_page_buffers(page);
detach_page_private(page);
put_page(page);
}
@ -374,7 +366,7 @@ static int read_page(struct file *file, unsigned long index,
ret = -ENOMEM;
goto out;
}
attach_page_buffers(page, bh);
attach_page_private(page, bh);
blk_cur = index << (PAGE_SHIFT - inode->i_blkbits);
while (bh) {
block = blk_cur;