Re: [PATCH 02/19] nilfs2: remove nilfs_alloc_seg_bio
On Mon, Jan 24, 2022 at 6:11 PM Christoph Hellwig wrote: > > bio_alloc will never fail when it can sleep. Remove the now simple > nilfs_alloc_seg_bio helper and open code it in the only caller. > > Signed-off-by: Christoph Hellwig > --- > fs/nilfs2/segbuf.c | 31 --- > 1 file changed, 4 insertions(+), 27 deletions(-) Acked-by: Ryusuke Konishi Thanks! Ryusuke Konishi
[PATCH 02/19] nilfs2: remove nilfs_alloc_seg_bio
bio_alloc will never fail when it can sleep. Remove the now simple
nilfs_alloc_seg_bio helper and open code it in the only caller.
Signed-off-by: Christoph Hellwig
---
fs/nilfs2/segbuf.c | 31 ---
1 file changed, 4 insertions(+), 27 deletions(-)
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 43287b0d3e9b6..53b7c6d21cdd8 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -371,29 +371,6 @@ static int nilfs_segbuf_submit_bio(struct
nilfs_segment_buffer *segbuf,
return err;
}
-/**
- * nilfs_alloc_seg_bio - allocate a new bio for writing log
- * @nilfs: nilfs object
- * @start: start block number of the bio
- * @nr_vecs: request size of page vector.
- *
- * Return Value: On success, pointer to the struct bio is returned.
- * On error, NULL is returned.
- */
-static struct bio *nilfs_alloc_seg_bio(struct the_nilfs *nilfs, sector_t start,
- int nr_vecs)
-{
- struct bio *bio;
-
- bio = bio_alloc(GFP_NOIO, nr_vecs);
- if (likely(bio)) {
- bio_set_dev(bio, nilfs->ns_bdev);
- bio->bi_iter.bi_sector =
- start << (nilfs->ns_blocksize_bits - 9);
- }
- return bio;
-}
-
static void nilfs_segbuf_prepare_write(struct nilfs_segment_buffer *segbuf,
struct nilfs_write_info *wi)
{
@@ -414,10 +391,10 @@ static int nilfs_segbuf_submit_bh(struct
nilfs_segment_buffer *segbuf,
BUG_ON(wi->nr_vecs <= 0);
repeat:
if (!wi->bio) {
- wi->bio = nilfs_alloc_seg_bio(wi->nilfs, wi->blocknr + wi->end,
- wi->nr_vecs);
- if (unlikely(!wi->bio))
- return -ENOMEM;
+ wi->bio = bio_alloc(GFP_NOIO, wi->nr_vecs);
+ bio_set_dev(wi->bio, wi->nilfs->ns_bdev);
+ wi->bio->bi_iter.bi_sector = (wi->blocknr + wi->end) <<
+ (wi->nilfs->ns_blocksize_bits - 9);
}
len = bio_add_page(wi->bio, bh->b_page, bh->b_size, bh_offset(bh));
--
2.30.2
[PATCH 02/19] nilfs2: remove nilfs_alloc_seg_bio
bio_alloc will never fail when it can sleep. Remove the now simple
nilfs_alloc_seg_bio helper and open code it in the only caller.
Signed-off-by: Christoph Hellwig
---
fs/nilfs2/segbuf.c | 31 ---
1 file changed, 4 insertions(+), 27 deletions(-)
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 43287b0d3e9b6..53b7c6d21cdd8 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -371,29 +371,6 @@ static int nilfs_segbuf_submit_bio(struct
nilfs_segment_buffer *segbuf,
return err;
}
-/**
- * nilfs_alloc_seg_bio - allocate a new bio for writing log
- * @nilfs: nilfs object
- * @start: start block number of the bio
- * @nr_vecs: request size of page vector.
- *
- * Return Value: On success, pointer to the struct bio is returned.
- * On error, NULL is returned.
- */
-static struct bio *nilfs_alloc_seg_bio(struct the_nilfs *nilfs, sector_t start,
- int nr_vecs)
-{
- struct bio *bio;
-
- bio = bio_alloc(GFP_NOIO, nr_vecs);
- if (likely(bio)) {
- bio_set_dev(bio, nilfs->ns_bdev);
- bio->bi_iter.bi_sector =
- start << (nilfs->ns_blocksize_bits - 9);
- }
- return bio;
-}
-
static void nilfs_segbuf_prepare_write(struct nilfs_segment_buffer *segbuf,
struct nilfs_write_info *wi)
{
@@ -414,10 +391,10 @@ static int nilfs_segbuf_submit_bh(struct
nilfs_segment_buffer *segbuf,
BUG_ON(wi->nr_vecs <= 0);
repeat:
if (!wi->bio) {
- wi->bio = nilfs_alloc_seg_bio(wi->nilfs, wi->blocknr + wi->end,
- wi->nr_vecs);
- if (unlikely(!wi->bio))
- return -ENOMEM;
+ wi->bio = bio_alloc(GFP_NOIO, wi->nr_vecs);
+ bio_set_dev(wi->bio, wi->nilfs->ns_bdev);
+ wi->bio->bi_iter.bi_sector = (wi->blocknr + wi->end) <<
+ (wi->nilfs->ns_blocksize_bits - 9);
}
len = bio_add_page(wi->bio, bh->b_page, bh->b_size, bh_offset(bh));
--
2.30.2
