drop queue-4.19/block-introduce-multi-page-bvec-helpers.patch

diff --git a/queue-4.19/block-introduce-multi-page-bvec-helpers.patch b/queue-4.19/block-introduce-multi-page-bvec-helpers.patch
deleted file mode 100644 (file)
index cf9f6c2..0000000
--- a/queue-4.19/block-introduce-multi-page-bvec-helpers.patch
+++ /dev/null
@@ -1,117 +0,0 @@
-From 8ae400c0add40e6d7fd80c616b3f6f7974b2f254 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Fri, 15 Feb 2019 19:13:10 +0800
-Subject: block: introduce multi-page bvec helpers
-
-From: Ming Lei <ming.lei@redhat.com>
-
-[ Upstream commit 3d75ca0adef4280650c6690a0c4702a74a6f3c95 ]
-
-This patch introduces helpers of 'mp_bvec_iter_*' for multi-page bvec
-support.
-
-The introduced helpers treate one bvec as real multi-page segment,
-which may include more than one pages.
-
-The existed helpers of bvec_iter_* are interfaces for supporting current
-bvec iterator which is thought as single-page by drivers, fs, dm and
-etc. These introduced helpers will build single-page bvec in flight, so
-this way won't break current bio/bvec users, which needn't any change.
-
-Follows some multi-page bvec background:
-
-- bvecs stored in bio->bi_io_vec is always multi-page style
-
-- bvec(struct bio_vec) represents one physically contiguous I/O
-  buffer, now the buffer may include more than one page after
-  multi-page bvec is supported, and all these pages represented
-  by one bvec is physically contiguous. Before multi-page bvec
-  support, at most one page is included in one bvec, we call it
-  single-page bvec.
-
-- .bv_page of the bvec points to the 1st page in the multi-page bvec
-
-- .bv_offset of the bvec is the offset of the buffer in the bvec
-
-The effect on the current drivers/filesystem/dm/bcache/...:
-
-- almost everyone supposes that one bvec only includes one single
-  page, so we keep the sp interface not changed, for example,
-  bio_for_each_segment() still returns single-page bvec
-
-- bio_for_each_segment_all() will return single-page bvec too
-
-- during iterating, iterator variable(struct bvec_iter) is always
-  updated in multi-page bvec style, and bvec_iter_advance() is kept
-  not changed
-
-- returned(copied) single-page bvec is built in flight by bvec
-  helpers from the stored multi-page bvec
-
-Reviewed-by: Christoph Hellwig <hch@lst.de>
-Reviewed-by: Omar Sandoval <osandov@fb.com>
-Signed-off-by: Ming Lei <ming.lei@redhat.com>
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- include/linux/bvec.h | 30 +++++++++++++++++++++++++++---
- 1 file changed, 27 insertions(+), 3 deletions(-)
-
-diff --git a/include/linux/bvec.h b/include/linux/bvec.h
-index bc1f16e9f3f4d..cd43c03e31129 100644
---- a/include/linux/bvec.h
-+++ b/include/linux/bvec.h
-@@ -23,6 +23,7 @@
- #include <linux/kernel.h>
- #include <linux/bug.h>
- #include <linux/errno.h>
-+#include <linux/mm.h>
- 
- /*
-  * was unsigned short, but we might as well be ready for > 64kB I/O pages
-@@ -52,16 +53,39 @@ struct bvec_iter {
-  */
- #define __bvec_iter_bvec(bvec, iter)  (&(bvec)[(iter).bi_idx])
- 
--#define bvec_iter_page(bvec, iter)                            \
-+/* multi-page (mp_bvec) helpers */
-+#define mp_bvec_iter_page(bvec, iter)                         \
-       (__bvec_iter_bvec((bvec), (iter))->bv_page)
- 
--#define bvec_iter_len(bvec, iter)                             \
-+#define mp_bvec_iter_len(bvec, iter)                          \
-       min((iter).bi_size,                                     \
-           __bvec_iter_bvec((bvec), (iter))->bv_len - (iter).bi_bvec_done)
- 
--#define bvec_iter_offset(bvec, iter)                          \
-+#define mp_bvec_iter_offset(bvec, iter)                               \
-       (__bvec_iter_bvec((bvec), (iter))->bv_offset + (iter).bi_bvec_done)
- 
-+#define mp_bvec_iter_page_idx(bvec, iter)                     \
-+      (mp_bvec_iter_offset((bvec), (iter)) / PAGE_SIZE)
-+
-+#define mp_bvec_iter_bvec(bvec, iter)                         \
-+((struct bio_vec) {                                           \
-+      .bv_page        = mp_bvec_iter_page((bvec), (iter)),    \
-+      .bv_len         = mp_bvec_iter_len((bvec), (iter)),     \
-+      .bv_offset      = mp_bvec_iter_offset((bvec), (iter)),  \
-+})
-+
-+/* For building single-page bvec in flight */
-+ #define bvec_iter_offset(bvec, iter)                         \
-+      (mp_bvec_iter_offset((bvec), (iter)) % PAGE_SIZE)
-+
-+#define bvec_iter_len(bvec, iter)                             \
-+      min_t(unsigned, mp_bvec_iter_len((bvec), (iter)),               \
-+            PAGE_SIZE - bvec_iter_offset((bvec), (iter)))
-+
-+#define bvec_iter_page(bvec, iter)                            \
-+      nth_page(mp_bvec_iter_page((bvec), (iter)),             \
-+               mp_bvec_iter_page_idx((bvec), (iter)))
-+
- #define bvec_iter_bvec(bvec, iter)                            \
- ((struct bio_vec) {                                           \
-       .bv_page        = bvec_iter_page((bvec), (iter)),       \
--- 
-2.42.0
-

diff --git a/queue-4.19/series b/queue-4.19/series
index 4c45080f8af2bc97383c171757d49784623d8011..63d7111d408b30e2076f8602241fa67fabb0e03e 100644 (file)
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -3,7 +3,6 @@ spi-imx-move-wml-setting-to-later-than-setup_transfe.patch
 spi-imx-correct-wml-as-the-last-sg-length.patch
 spi-imx-mx51-ecspi-move-some-initialisation-to-prepa.patch
 media-davinci-vpif_capture-fix-potential-double-free.patch
-block-introduce-multi-page-bvec-helpers.patch
 hrtimers-push-pending-hrtimers-away-from-outgoing-cp.patch
 netfilter-ipset-fix-race-condition-between-swap-dest.patch
 tg3-move-the-rt-x_dropped-counters-to-tg3_napi.patch