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fs: remove the NULL get_block case in mpage_writepages 

No one calls mpage_writepages with a NULL get_block paramter, so remove
support for that case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Christoph Hellwig 2022-06-13 07:37:15 +02:00 committed by Matthew Wilcox (Oracle)
parent f2d3e573bf
commit cf5e7a6521
1 changed files with 6 additions and 16 deletions
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22
fs/mpage.c
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@ -638,8 +638,6 @@ out:
* @mapping: address space structure to write
* @wbc: subtract the number of written pages from *@wbc->nr_to_write
* @get_block: the filesystem's block mapper function.
* If this is NULL then use a_ops->writepage. Otherwise, go
* direct-to-BIO.
*
* This is a library function, which implements the writepages()
* address_space_operation.
@ -656,24 +654,16 @@ int
mpage_writepages(struct address_space *mapping,
struct writeback_control *wbc, get_block_t get_block)
{
struct mpage_data mpd = {
.get_block = get_block,
};
struct blk_plug plug;
int ret;
blk_start_plug(&plug);
if (!get_block)
ret = generic_writepages(mapping, wbc);
else {
struct mpage_data mpd = {
.bio = NULL,
.last_block_in_bio = 0,
.get_block = get_block,
};
ret = write_cache_pages(mapping, wbc, __mpage_writepage, &mpd);
if (mpd.bio)
mpage_bio_submit(mpd.bio);
}
ret = write_cache_pages(mapping, wbc, __mpage_writepage, &mpd);
if (mpd.bio)
mpage_bio_submit(mpd.bio);
blk_finish_plug(&plug);
return ret;
}