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for-5.18/alloc-cleanups-2022-03-18

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Merge tag 'for-5.18/alloc-cleanups-2022-03-18' of git://git.kernel.dk/linux-block

Pull bio_alloc() cleanups from Jens Axboe:
 "Filesystem cleanups to pass the bio op to bio_alloc() instead of
  setting it just before bio submission".

* tag 'for-5.18/alloc-cleanups-2022-03-18' of git://git.kernel.dk/linux-block:
  f2fs: pass the bio operation to bio_alloc_bioset
  f2fs: don't pass a bio to f2fs_target_device
  nilfs2: pass the operation to bio_alloc
  ext4: pass the operation to bio_alloc
  mpage: pass the operation to bio_alloc
This commit is contained in:
Linus Torvalds 2022-03-21 17:21:05 -07:00
commit d347ee54a7
5 changed files with 73 additions and 95 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
fs/ext4/page-io.c
View File

@ -371,10 +371,9 @@ void ext4_io_submit(struct ext4_io_submit *io)
struct bio *bio = io->io_bio;
if (bio) {
int io_op_flags = io->io_wbc->sync_mode == WB_SYNC_ALL ?
REQ_SYNC : 0;
if (io->io_wbc->sync_mode == WB_SYNC_ALL)
io->io_bio->bi_opf |= REQ_SYNC;
io->io_bio->bi_write_hint = io->io_end->inode->i_write_hint;
bio_set_op_attrs(io->io_bio, REQ_OP_WRITE, io_op_flags);
submit_bio(io->io_bio);
}
io->io_bio = NULL;
@ -397,7 +396,7 @@ static void io_submit_init_bio(struct ext4_io_submit *io,
* bio_alloc will _always_ be able to allocate a bio if
* __GFP_DIRECT_RECLAIM is set, see comments for bio_alloc_bioset().
*/
bio = bio_alloc(bh->b_bdev, BIO_MAX_VECS, 0, GFP_NOIO);
bio = bio_alloc(bh->b_bdev, BIO_MAX_VECS, REQ_OP_WRITE, GFP_NOIO);
fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO);
bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_end_io = ext4_end_bio;

89
fs/f2fs/data.c
View File

@ -354,7 +354,7 @@ static void f2fs_write_end_io(struct bio *bio)
}
struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
block_t blk_addr, struct bio *bio)
block_t blk_addr, sector_t *sector)
{
struct block_device *bdev = sbi->sb->s_bdev;
int i;
@ -369,10 +369,9 @@ struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
}
}
}
if (bio) {
bio_set_dev(bio, bdev);
bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(blk_addr);
}
if (sector)
*sector = SECTOR_FROM_BLOCK(blk_addr);
return bdev;
}
@ -389,14 +388,40 @@ int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr)
return 0;
}
static void __attach_io_flag(struct f2fs_io_info *fio, unsigned int io_flag)
{
unsigned int temp_mask = (1 << NR_TEMP_TYPE) - 1;
unsigned int fua_flag = io_flag & temp_mask;
unsigned int meta_flag = (io_flag >> NR_TEMP_TYPE) & temp_mask;
/*
* data/node io flag bits per temp:
* REQ_META | REQ_FUA |
* 5 | 4 | 3 | 2 | 1 | 0 |
* Cold | Warm | Hot | Cold | Warm | Hot |
*/
if ((1 << fio->temp) & meta_flag)
fio->op_flags |= REQ_META;
if ((1 << fio->temp) & fua_flag)
fio->op_flags |= REQ_FUA;
}
static struct bio *__bio_alloc(struct f2fs_io_info *fio, int npages)
{
struct f2fs_sb_info *sbi = fio->sbi;
struct block_device *bdev;
sector_t sector;
struct bio *bio;
bio = bio_alloc_bioset(NULL, npages, 0, GFP_NOIO, &f2fs_bioset);
if (fio->type == DATA)
__attach_io_flag(fio, sbi->data_io_flag);
else if (fio->type == NODE)
__attach_io_flag(fio, sbi->node_io_flag);
f2fs_target_device(sbi, fio->new_blkaddr, bio);
bdev = f2fs_target_device(sbi, fio->new_blkaddr, &sector);
bio = bio_alloc_bioset(bdev, npages, fio->op | fio->op_flags, GFP_NOIO,
&f2fs_bioset);
bio->bi_iter.bi_sector = sector;
if (is_read_io(fio->op)) {
bio->bi_end_io = f2fs_read_end_io;
bio->bi_private = NULL;
@ -500,34 +525,6 @@ void f2fs_submit_bio(struct f2fs_sb_info *sbi,
__submit_bio(sbi, bio, type);
}
static void __attach_io_flag(struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = fio->sbi;
unsigned int temp_mask = (1 << NR_TEMP_TYPE) - 1;
unsigned int io_flag, fua_flag, meta_flag;
if (fio->type == DATA)
io_flag = sbi->data_io_flag;
else if (fio->type == NODE)
io_flag = sbi->node_io_flag;
else
return;
fua_flag = io_flag & temp_mask;
meta_flag = (io_flag >> NR_TEMP_TYPE) & temp_mask;
/*
* data/node io flag bits per temp:
* REQ_META | REQ_FUA |
* 5 | 4 | 3 | 2 | 1 | 0 |
* Cold | Warm | Hot | Cold | Warm | Hot |
*/
if ((1 << fio->temp) & meta_flag)
fio->op_flags |= REQ_META;
if ((1 << fio->temp) & fua_flag)
fio->op_flags |= REQ_FUA;
}
static void __submit_merged_bio(struct f2fs_bio_info *io)
{
struct f2fs_io_info *fio = &io->fio;
@ -535,9 +532,6 @@ static void __submit_merged_bio(struct f2fs_bio_info *io)
if (!io->bio)
return;
__attach_io_flag(fio);
bio_set_op_attrs(io->bio, fio->op, fio->op_flags);
if (is_read_io(fio->op))
trace_f2fs_prepare_read_bio(io->sbi->sb, fio->type, io->bio);
else
@ -595,10 +589,9 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
/* change META to META_FLUSH in the checkpoint procedure */
if (type >= META_FLUSH) {
io->fio.type = META_FLUSH;
io->fio.op = REQ_OP_WRITE;
io->fio.op_flags = REQ_META | REQ_PRIO | REQ_SYNC;
io->bio->bi_opf |= REQ_META | REQ_PRIO | REQ_SYNC;
if (!test_opt(sbi, NOBARRIER))
io->fio.op_flags |= REQ_PREFLUSH | REQ_FUA;
io->bio->bi_opf |= REQ_PREFLUSH | REQ_FUA;
}
__submit_merged_bio(io);
up_write(&io->io_rwsem);
@ -679,9 +672,6 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
if (fio->io_wbc && !is_read_io(fio->op))
wbc_account_cgroup_owner(fio->io_wbc, page, PAGE_SIZE);
__attach_io_flag(fio);
bio_set_op_attrs(bio, fio->op, fio->op_flags);
inc_page_count(fio->sbi, is_read_io(fio->op) ?
__read_io_type(page): WB_DATA_TYPE(fio->page));
@ -875,10 +865,8 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio)
alloc_new:
if (!bio) {
bio = __bio_alloc(fio, BIO_MAX_VECS);
__attach_io_flag(fio);
f2fs_set_bio_crypt_ctx(bio, fio->page->mapping->host,
fio->page->index, fio, GFP_NOIO);
bio_set_op_attrs(bio, fio->op, fio->op_flags);
add_bio_entry(fio->sbi, bio, page, fio->temp);
} else {
@ -984,15 +972,16 @@ static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
struct bio *bio;
struct bio_post_read_ctx *ctx = NULL;
unsigned int post_read_steps = 0;
sector_t sector;
struct block_device *bdev = f2fs_target_device(sbi, blkaddr, &sector);
bio = bio_alloc_bioset(NULL, bio_max_segs(nr_pages), REQ_OP_READ,
bio = bio_alloc_bioset(bdev, bio_max_segs(nr_pages),
REQ_OP_READ | op_flag,
for_write ? GFP_NOIO : GFP_KERNEL, &f2fs_bioset);
if (!bio)
return ERR_PTR(-ENOMEM);
bio->bi_iter.bi_sector = sector;
f2fs_set_bio_crypt_ctx(bio, inode, first_idx, NULL, GFP_NOFS);
f2fs_target_device(sbi, blkaddr, bio);
bio->bi_end_io = f2fs_read_end_io;
if (fscrypt_inode_uses_fs_layer_crypto(inode))

2
fs/f2fs/f2fs.h
View File

@ -3631,7 +3631,7 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio);
int f2fs_merge_page_bio(struct f2fs_io_info *fio);
void f2fs_submit_page_write(struct f2fs_io_info *fio);
struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
block_t blk_addr, struct bio *bio);
block_t blk_addr, sector_t *sector);
int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);

50
fs/mpage.c
View File

@ -57,10 +57,9 @@ static void mpage_end_io(struct bio *bio)
bio_put(bio);
}
static struct bio *mpage_bio_submit(int op, int op_flags, struct bio *bio)
static struct bio *mpage_bio_submit(struct bio *bio)
{
bio->bi_end_io = mpage_end_io;
bio_set_op_attrs(bio, op, op_flags);
guard_bio_eod(bio);
submit_bio(bio);
return NULL;
@ -146,16 +145,15 @@ static struct bio *do_mpage_readpage(struct mpage_readpage_args *args)
struct block_device *bdev = NULL;
int length;
int fully_mapped = 1;
int op_flags;
int op = REQ_OP_READ;
unsigned nblocks;
unsigned relative_block;
gfp_t gfp;
if (args->is_readahead) {
op_flags = REQ_RAHEAD;
op |= REQ_RAHEAD;
gfp = readahead_gfp_mask(page->mapping);
} else {
op_flags = 0;
gfp = mapping_gfp_constraint(page->mapping, GFP_KERNEL);
}
@ -264,7 +262,7 @@ static struct bio *do_mpage_readpage(struct mpage_readpage_args *args)
* This page will go to BIO. Do we need to send this BIO off first?
*/
if (args->bio && (args->last_block_in_bio != blocks[0] - 1))
args->bio = mpage_bio_submit(REQ_OP_READ, op_flags, args->bio);
args->bio = mpage_bio_submit(args->bio);
alloc_new:
if (args->bio == NULL) {
@ -273,7 +271,7 @@ alloc_new:
page))
goto out;
}
args->bio = bio_alloc(bdev, bio_max_segs(args->nr_pages), 0,
args->bio = bio_alloc(bdev, bio_max_segs(args->nr_pages), op,
gfp);
if (args->bio == NULL)
goto confused;
@ -282,7 +280,7 @@ alloc_new:
length = first_hole << blkbits;
if (bio_add_page(args->bio, page, length, 0) < length) {
args->bio = mpage_bio_submit(REQ_OP_READ, op_flags, args->bio);
args->bio = mpage_bio_submit(args->bio);
goto alloc_new;
}
@ -290,7 +288,7 @@ alloc_new:
nblocks = map_bh->b_size >> blkbits;
if ((buffer_boundary(map_bh) && relative_block == nblocks) ||
(first_hole != blocks_per_page))
args->bio = mpage_bio_submit(REQ_OP_READ, op_flags, args->bio);
args->bio = mpage_bio_submit(args->bio);
else
args->last_block_in_bio = blocks[blocks_per_page - 1];
out:
@ -298,7 +296,7 @@ out:
confused:
if (args->bio)
args->bio = mpage_bio_submit(REQ_OP_READ, op_flags, args->bio);
args->bio = mpage_bio_submit(args->bio);
if (!PageUptodate(page))
block_read_full_page(page, args->get_block);
else
@ -361,7 +359,7 @@ void mpage_readahead(struct readahead_control *rac, get_block_t get_block)
put_page(page);
}
if (args.bio)
mpage_bio_submit(REQ_OP_READ, REQ_RAHEAD, args.bio);
mpage_bio_submit(args.bio);
}
EXPORT_SYMBOL(mpage_readahead);
@ -378,7 +376,7 @@ int mpage_readpage(struct page *page, get_block_t get_block)
args.bio = do_mpage_readpage(&args);
if (args.bio)
mpage_bio_submit(REQ_OP_READ, 0, args.bio);
mpage_bio_submit(args.bio);
return 0;
}
EXPORT_SYMBOL(mpage_readpage);
@ -469,7 +467,6 @@ 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 op_flags = wbc_to_write_flags(wbc);
if (page_has_buffers(page)) {
struct buffer_head *head = page_buffers(page);
@ -577,7 +574,7 @@ page_is_mapped:
* 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(REQ_OP_WRITE, op_flags, bio);
bio = mpage_bio_submit(bio);
alloc_new:
if (bio == NULL) {
@ -586,9 +583,10 @@ alloc_new:
page, wbc))
goto out;
}
bio = bio_alloc(bdev, BIO_MAX_VECS, 0, GFP_NOFS);
bio = bio_alloc(bdev, BIO_MAX_VECS,
REQ_OP_WRITE | wbc_to_write_flags(wbc),
GFP_NOFS);
bio->bi_iter.bi_sector = blocks[0] << (blkbits - 9);
wbc_init_bio(wbc, bio);
bio->bi_write_hint = inode->i_write_hint;
}
@ -601,7 +599,7 @@ alloc_new:
wbc_account_cgroup_owner(wbc, page, PAGE_SIZE);
length = first_unmapped << blkbits;
if (bio_add_page(bio, page, length, 0) < length) {
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
bio = mpage_bio_submit(bio);
goto alloc_new;
}
@ -611,7 +609,7 @@ alloc_new:
set_page_writeback(page);
unlock_page(page);
if (boundary || (first_unmapped != blocks_per_page)) {
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
bio = mpage_bio_submit(bio);
if (boundary_block) {
write_boundary_block(boundary_bdev,
boundary_block, 1 << blkbits);
@ -623,7 +621,7 @@ alloc_new:
confused:
if (bio)
bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
bio = mpage_bio_submit(bio);
if (mpd->use_writepage) {
ret = mapping->a_ops->writepage(page, wbc);
@ -679,11 +677,8 @@ mpage_writepages(struct address_space *mapping,
};
ret = write_cache_pages(mapping, wbc, __mpage_writepage, &mpd);
if (mpd.bio) {
int op_flags = (wbc->sync_mode == WB_SYNC_ALL ?
REQ_SYNC : 0);
mpage_bio_submit(REQ_OP_WRITE, op_flags, mpd.bio);
}
if (mpd.bio)
mpage_bio_submit(mpd.bio);
}
blk_finish_plug(&plug);
return ret;
@ -700,11 +695,8 @@ int mpage_writepage(struct page *page, get_block_t get_block,
.use_writepage = 0,
};
int ret = __mpage_writepage(page, wbc, &mpd);
if (mpd.bio) {
int op_flags = (wbc->sync_mode == WB_SYNC_ALL ?
REQ_SYNC : 0);
mpage_bio_submit(REQ_OP_WRITE, op_flags, mpd.bio);
}
if (mpd.bio)
mpage_bio_submit(mpd.bio);
return ret;
}
EXPORT_SYMBOL(mpage_writepage);

20
fs/nilfs2/segbuf.c
View File

@ -337,8 +337,7 @@ static void nilfs_end_bio_write(struct bio *bio)
}
static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf,
struct nilfs_write_info *wi, int mode,
int mode_flags)
struct nilfs_write_info *wi)
{
struct bio *bio = wi->bio;
int err;
@ -356,7 +355,6 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf,
bio->bi_end_io = nilfs_end_bio_write;
bio->bi_private = segbuf;
bio_set_op_attrs(bio, mode, mode_flags);
submit_bio(bio);
segbuf->sb_nbio++;
@ -384,15 +382,15 @@ static void nilfs_segbuf_prepare_write(struct nilfs_segment_buffer *segbuf,
static int nilfs_segbuf_submit_bh(struct nilfs_segment_buffer *segbuf,
struct nilfs_write_info *wi,
struct buffer_head *bh, int mode)
struct buffer_head *bh)
{
int len, err;
BUG_ON(wi->nr_vecs <= 0);
repeat:
if (!wi->bio) {
wi->bio = bio_alloc(wi->nilfs->ns_bdev, wi->nr_vecs, 0,
GFP_NOIO);
wi->bio = bio_alloc(wi->nilfs->ns_bdev, wi->nr_vecs,
REQ_OP_WRITE, GFP_NOIO);
wi->bio->bi_iter.bi_sector = (wi->blocknr + wi->end) <<
(wi->nilfs->ns_blocksize_bits - 9);
}
@ -403,7 +401,7 @@ static int nilfs_segbuf_submit_bh(struct nilfs_segment_buffer *segbuf,
return 0;
}
/* bio is FULL */
err = nilfs_segbuf_submit_bio(segbuf, wi, mode, 0);
err = nilfs_segbuf_submit_bio(segbuf, wi);
/* never submit current bh */
if (likely(!err))
goto repeat;
@ -433,13 +431,13 @@ static int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf,
nilfs_segbuf_prepare_write(segbuf, &wi);
list_for_each_entry(bh, &segbuf->sb_segsum_buffers, b_assoc_buffers) {
res = nilfs_segbuf_submit_bh(segbuf, &wi, bh, REQ_OP_WRITE);
res = nilfs_segbuf_submit_bh(segbuf, &wi, bh);
if (unlikely(res))
goto failed_bio;
}
list_for_each_entry(bh, &segbuf->sb_payload_buffers, b_assoc_buffers) {
res = nilfs_segbuf_submit_bh(segbuf, &wi, bh, REQ_OP_WRITE);
res = nilfs_segbuf_submit_bh(segbuf, &wi, bh);
if (unlikely(res))
goto failed_bio;
}
@ -449,8 +447,8 @@ static int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf,
* Last BIO is always sent through the following
* submission.
*/
res = nilfs_segbuf_submit_bio(segbuf, &wi, REQ_OP_WRITE,
REQ_SYNC);
wi.bio->bi_opf |= REQ_SYNC;
res = nilfs_segbuf_submit_bio(segbuf, &wi);
}
failed_bio: