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mpage: use bio op accessors 

Separate the op from the rq_flag_bits and have the mpage code
set/get the bio using bio_set_op_attrs/bio_op.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Mike Christie 2016-06-05 14:31:59 -05:00 committed by Jens Axboe
parent 67ed25961c
commit eed25cd5bb
1 changed files with 20 additions and 20 deletions
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40
fs/mpage.c
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@ -56,11 +56,11 @@ static void mpage_end_io(struct bio *bio)
bio_put(bio);
}
static struct bio *mpage_bio_submit(int rw, struct bio *bio)
static struct bio *mpage_bio_submit(int op, int op_flags, struct bio *bio)
{
bio->bi_end_io = mpage_end_io;
bio->bi_rw = rw;
guard_bio_eod(rw, bio);
bio_set_op_attrs(bio, op, op_flags);
guard_bio_eod(op, bio);
submit_bio(bio);
return NULL;
}
@ -270,7 +270,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
* This page will go to BIO. Do we need to send this BIO off first?
*/
if (bio && (*last_block_in_bio != blocks[0] - 1))
bio = mpage_bio_submit(READ, bio);
bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
alloc_new:
if (bio == NULL) {
@ -287,7 +287,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
length = first_hole << blkbits;
if (bio_add_page(bio, page, length, 0) < length) {
bio = mpage_bio_submit(READ, bio);
bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
goto alloc_new;
}
@ -295,7 +295,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
nblocks = map_bh->b_size >> blkbits;
if ((buffer_boundary(map_bh) && relative_block == nblocks) ||
(first_hole != blocks_per_page))
bio = mpage_bio_submit(READ, bio);
bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
else
*last_block_in_bio = blocks[blocks_per_page - 1];
out:
@ -303,7 +303,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
confused:
if (bio)
bio = mpage_bio_submit(READ, bio);
bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
if (!PageUptodate(page))
block_read_full_page(page, get_block);
else
@ -385,7 +385,7 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages,
}
BUG_ON(!list_empty(pages));
if (bio)
mpage_bio_submit(READ, bio);
mpage_bio_submit(REQ_OP_READ, 0, bio);
return 0;
}
EXPORT_SYMBOL(mpage_readpages);
@ -406,7 +406,7 @@ int mpage_readpage(struct page *page, get_block_t get_block)
bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio,
&map_bh, &first_logical_block, get_block, gfp);
if (bio)
mpage_bio_submit(READ, bio);
mpage_bio_submit(REQ_OP_READ, 0, bio);
return 0;
}
EXPORT_SYMBOL(mpage_readpage);
@ -487,7 +487,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
struct buffer_head map_bh;
loff_t i_size = i_size_read(inode);
int ret = 0;
int wr = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
int op_flags = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : 0);
if (page_has_buffers(page)) {
struct buffer_head *head = page_buffers(page);
@ -596,7 +596,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
* This page will go to BIO. Do we need to send this BIO off first?
*/
if (bio && mpd->last_block_in_bio != blocks[0] - 1)
bio = mpage_bio_submit(wr, bio);
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
alloc_new:
if (bio == NULL) {
@ -623,7 +623,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
wbc_account_io(wbc, page, PAGE_SIZE);
length = first_unmapped << blkbits;
if (bio_add_page(bio, page, length, 0) < length) {
bio = mpage_bio_submit(wr, bio);
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
goto alloc_new;
}
@ -633,7 +633,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
set_page_writeback(page);
unlock_page(page);
if (boundary || (first_unmapped != blocks_per_page)) {
bio = mpage_bio_submit(wr, bio);
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
if (boundary_block) {
write_boundary_block(boundary_bdev,
boundary_block, 1 << blkbits);
@ -645,7 +645,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
confused:
if (bio)
bio = mpage_bio_submit(wr, bio);
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
if (mpd->use_writepage) {
ret = mapping->a_ops->writepage(page, wbc);
@ -702,9 +702,9 @@ mpage_writepages(struct address_space *mapping,
ret = write_cache_pages(mapping, wbc, __mpage_writepage, &mpd);
if (mpd.bio) {
int wr = (wbc->sync_mode == WB_SYNC_ALL ?
WRITE_SYNC : WRITE);
mpage_bio_submit(wr, mpd.bio);
int op_flags = (wbc->sync_mode == WB_SYNC_ALL ?
WRITE_SYNC : 0);
mpage_bio_submit(REQ_OP_WRITE, op_flags, mpd.bio);
}
}
blk_finish_plug(&plug);
@ -723,9 +723,9 @@ int mpage_writepage(struct page *page, get_block_t get_block,
};
int ret = __mpage_writepage(page, wbc, &mpd);
if (mpd.bio) {
int wr = (wbc->sync_mode == WB_SYNC_ALL ?
WRITE_SYNC : WRITE);
mpage_bio_submit(wr, mpd.bio);
int op_flags = (wbc->sync_mode == WB_SYNC_ALL ?
WRITE_SYNC : 0);
mpage_bio_submit(REQ_OP_WRITE, op_flags, mpd.bio);
}
return ret;
}