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From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
To: linux-block@vger.kernel.org, linux-nvme@lists.infradead.org
Cc: hch@lst.de, sagi@grimberg.me, damien.lemoal@wdc.com,
	Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Subject: [PATCH V2 1/9] block: export __bio_iov_append_get_pages()
Date: Sun, 29 Nov 2020 19:29:01 -0800	[thread overview]
Message-ID: <20201130032909.40638-2-chaitanya.kulkarni@wdc.com> (raw)
In-Reply-To: <20201130032909.40638-1-chaitanya.kulkarni@wdc.com>

In this prep patch we exoprt the __bio_iov_append_get_pages() so that
NVMeOF target can use the core logic of building Zone Append bios for
REQ_OP_ZONE_APPEND without repeating the code.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 block/bio.c         | 3 ++-
 include/linux/bio.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/block/bio.c b/block/bio.c
index fa01bef35bb1..de356fa28315 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1033,7 +1033,7 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	return 0;
 }
 
-static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
+int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
 {
 	unsigned short nr_pages = bio->bi_max_vecs - bio->bi_vcnt;
 	unsigned short entries_left = bio->bi_max_vecs - bio->bi_vcnt;
@@ -1079,6 +1079,7 @@ static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
 	iov_iter_advance(iter, size - left);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(__bio_iov_append_get_pages);
 
 /**
  * bio_iov_iter_get_pages - add user or kernel pages to a bio
diff --git a/include/linux/bio.h b/include/linux/bio.h
index c6d765382926..47247c1b0b85 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -446,6 +446,7 @@ bool __bio_try_merge_page(struct bio *bio, struct page *page,
 		unsigned int len, unsigned int off, bool *same_page);
 void __bio_add_page(struct bio *bio, struct page *page,
 		unsigned int len, unsigned int off);
+int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter);
 int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter);
 void bio_release_pages(struct bio *bio, bool mark_dirty);
 extern void bio_set_pages_dirty(struct bio *bio);
-- 
2.22.1


WARNING: multiple messages have this Message-ID (diff)
From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
To: linux-block@vger.kernel.org, linux-nvme@lists.infradead.org
Cc: damien.lemoal@wdc.com, hch@lst.de,
	Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>,
	sagi@grimberg.me
Subject: [PATCH V2 1/9] block: export __bio_iov_append_get_pages()
Date: Sun, 29 Nov 2020 19:29:01 -0800	[thread overview]
Message-ID: <20201130032909.40638-2-chaitanya.kulkarni@wdc.com> (raw)
In-Reply-To: <20201130032909.40638-1-chaitanya.kulkarni@wdc.com>

In this prep patch we exoprt the __bio_iov_append_get_pages() so that
NVMeOF target can use the core logic of building Zone Append bios for
REQ_OP_ZONE_APPEND without repeating the code.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 block/bio.c         | 3 ++-
 include/linux/bio.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/block/bio.c b/block/bio.c
index fa01bef35bb1..de356fa28315 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1033,7 +1033,7 @@ static int __bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 	return 0;
 }
 
-static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
+int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
 {
 	unsigned short nr_pages = bio->bi_max_vecs - bio->bi_vcnt;
 	unsigned short entries_left = bio->bi_max_vecs - bio->bi_vcnt;
@@ -1079,6 +1079,7 @@ static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
 	iov_iter_advance(iter, size - left);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(__bio_iov_append_get_pages);
 
 /**
  * bio_iov_iter_get_pages - add user or kernel pages to a bio
diff --git a/include/linux/bio.h b/include/linux/bio.h
index c6d765382926..47247c1b0b85 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -446,6 +446,7 @@ bool __bio_try_merge_page(struct bio *bio, struct page *page,
 		unsigned int len, unsigned int off, bool *same_page);
 void __bio_add_page(struct bio *bio, struct page *page,
 		unsigned int len, unsigned int off);
+int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter);
 int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter);
 void bio_release_pages(struct bio *bio, bool mark_dirty);
 extern void bio_set_pages_dirty(struct bio *bio);
-- 
2.22.1


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  reply	other threads:[~2020-11-30  3:30 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-30  3:29 [PATCH 0/9] nvmet: add genblk ZBD backend Chaitanya Kulkarni
2020-11-30  3:29 ` Chaitanya Kulkarni
2020-11-30  3:29 ` Chaitanya Kulkarni [this message]
2020-11-30  3:29   ` [PATCH V2 1/9] block: export __bio_iov_append_get_pages() Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 2/9] nvmet: add ZNS support for bdev-ns Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30 11:57   ` Damien Le Moal
2020-11-30 11:57     ` Damien Le Moal
2020-12-01  3:38     ` Chaitanya Kulkarni
2020-12-01  3:38       ` Chaitanya Kulkarni
2020-12-01  5:44       ` Damien Le Moal
2020-12-01  5:44         ` Damien Le Moal
2020-12-01 22:37         ` Chaitanya Kulkarni
2020-12-01 22:37           ` Chaitanya Kulkarni
2020-11-30 12:29   ` Johannes Thumshirn
2020-11-30 12:29     ` Johannes Thumshirn
2020-12-01  3:49     ` Chaitanya Kulkarni
2020-12-01  3:49       ` Chaitanya Kulkarni
2020-12-01  7:51       ` Johannes Thumshirn
2020-12-01  7:51         ` Johannes Thumshirn
2020-12-01 22:36         ` Chaitanya Kulkarni
2020-12-01 22:36           ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 3/9] nvmet: trim down id-desclist to use req->ns Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 4/9] nvmet: add NVME_CSI_ZNS in ns-desc for zbdev Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 5/9] nvmet: add cns-cs-ctrl in id-ctrl for ZNS bdev Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 6/9] nvmet: add cns-cs-ns " Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 7/9] nvmet: add zns cmd effects to support zbdev Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 8/9] nvmet: add zns bdev config support Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30 12:02   ` Damien Le Moal
2020-11-30 12:02     ` Damien Le Moal
2020-12-01  3:40     ` Chaitanya Kulkarni
2020-12-01  3:40       ` Chaitanya Kulkarni
2020-11-30  3:29 ` [PATCH V2 9/9] nvmet: add ZNS based I/O cmds handlers Chaitanya Kulkarni
2020-11-30  3:29   ` Chaitanya Kulkarni
2020-11-30  6:51 ` [PATCH 0/9] nvmet: add genblk ZBD backend Damien Le Moal
2020-11-30  6:51   ` Damien Le Moal
2020-12-01  3:42   ` Chaitanya Kulkarni
2020-12-01  3:42     ` Chaitanya Kulkarni

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