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block_dev: convert to new aops 

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Piggin 2007-10-16 01:25:04 -07:00 committed by Linus Torvalds
parent 800d15a53e
commit 6272b5a586
1 changed files with 18 additions and 6 deletions
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24
fs/block_dev.c
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@ -378,14 +378,26 @@ static int blkdev_readpage(struct file * file, struct page * page)
return block_read_full_page(page, blkdev_get_block);
}
static int blkdev_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
static int blkdev_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
return block_prepare_write(page, from, to, blkdev_get_block);
*pagep = NULL;
return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
blkdev_get_block);
}
static int blkdev_commit_write(struct file *file, struct page *page, unsigned from, unsigned to)
static int blkdev_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
return block_commit_write(page, from, to);
int ret;
ret = block_write_end(file, mapping, pos, len, copied, page, fsdata);
unlock_page(page);
page_cache_release(page);
return ret;
}
/*
@ -1327,8 +1339,8 @@ const struct address_space_operations def_blk_aops = {
.readpage = blkdev_readpage,
.writepage = blkdev_writepage,
.sync_page = block_sync_page,
.prepare_write = blkdev_prepare_write,
.commit_write = blkdev_commit_write,
.write_begin = blkdev_write_begin,
.write_end = blkdev_write_end,
.writepages = generic_writepages,
.direct_IO = blkdev_direct_IO,
};