From: Jens Axboe <axboe@fb.com>
To: <axboe@kernel.dk>, <linux-kernel@vger.kernel.org>,
<linux-fsdevel@vger.kernel.org>, <linux-block@vger.kernel.org>
Cc: <jack@suse.cz>, <hch@lst.de>, Jens Axboe <axboe@fb.com>
Subject: [PATCH 2/8] writeback: add wbc_to_write_flags()
Date: Tue, 1 Nov 2016 15:08:45 -0600 [thread overview]
Message-ID: <1478034531-28559-3-git-send-email-axboe@fb.com> (raw)
In-Reply-To: <1478034531-28559-1-git-send-email-axboe@fb.com>
Add wbc_to_write_flags(), which returns the write modifier flags to use,
based on a struct writeback_control. No functional changes in this
patch, but it prepares us for factoring other wbc fields for write type.
Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Jan Kara <jack@suse.cz>
---
fs/buffer.c | 2 +-
fs/f2fs/data.c | 2 +-
fs/f2fs/node.c | 2 +-
fs/gfs2/meta_io.c | 3 +--
fs/mpage.c | 2 +-
fs/xfs/xfs_aops.c | 8 ++------
include/linux/writeback.h | 9 +++++++++
mm/page_io.c | 5 +----
8 files changed, 17 insertions(+), 16 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index bc7c2bb30a9b..af5776da814a 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1697,7 +1697,7 @@ int __block_write_full_page(struct inode *inode, struct page *page,
struct buffer_head *bh, *head;
unsigned int blocksize, bbits;
int nr_underway = 0;
- int write_flags = (wbc->sync_mode == WB_SYNC_ALL ? REQ_SYNC : 0);
+ int write_flags = wbc_to_write_flags(wbc);
head = create_page_buffers(page, inode,
(1 << BH_Dirty)|(1 << BH_Uptodate));
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b80bf10603d7..9e5561fa4cb6 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1249,7 +1249,7 @@ static int f2fs_write_data_page(struct page *page,
.sbi = sbi,
.type = DATA,
.op = REQ_OP_WRITE,
- .op_flags = (wbc->sync_mode == WB_SYNC_ALL) ? REQ_SYNC : 0,
+ .op_flags = wbc_to_write_flags(wbc),
.page = page,
.encrypted_page = NULL,
};
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 932f3f8bb57b..d1e29deb4598 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1570,7 +1570,7 @@ static int f2fs_write_node_page(struct page *page,
.sbi = sbi,
.type = NODE,
.op = REQ_OP_WRITE,
- .op_flags = (wbc->sync_mode == WB_SYNC_ALL) ? REQ_SYNC : 0,
+ .op_flags = wbc_to_write_flags(wbc),
.page = page,
.encrypted_page = NULL,
};
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index e562b1191c9c..49db8ef13fdf 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -37,8 +37,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
{
struct buffer_head *bh, *head;
int nr_underway = 0;
- int write_flags = REQ_META | REQ_PRIO |
- (wbc->sync_mode == WB_SYNC_ALL ? REQ_SYNC : 0);
+ int write_flags = REQ_META | REQ_PRIO | wbc_to_write_flags(wbc);
BUG_ON(!PageLocked(page));
BUG_ON(!page_has_buffers(page));
diff --git a/fs/mpage.c b/fs/mpage.c
index f35e2819d0c6..98fc11aa7e0b 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -489,7 +489,7 @@ 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 op_flags = (wbc->sync_mode == WB_SYNC_ALL ? REQ_SYNC : 0);
+ int op_flags = wbc_to_write_flags(wbc);
if (page_has_buffers(page)) {
struct buffer_head *head = page_buffers(page);
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 594e02c485b2..6be5204a06d3 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -495,9 +495,7 @@ xfs_submit_ioend(
ioend->io_bio->bi_private = ioend;
ioend->io_bio->bi_end_io = xfs_end_bio;
- ioend->io_bio->bi_opf = REQ_OP_WRITE;
- if (wbc->sync_mode == WB_SYNC_ALL)
- ioend->io_bio->bi_opf |= REQ_SYNC;
+ ioend->io_bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);
/*
* If we are failing the IO now, just mark the ioend with an
@@ -569,9 +567,7 @@ xfs_chain_bio(
bio_chain(ioend->io_bio, new);
bio_get(ioend->io_bio); /* for xfs_destroy_ioend */
- ioend->io_bio->bi_opf = REQ_OP_WRITE;
- if (wbc->sync_mode == WB_SYNC_ALL)
- ioend->io_bio->bi_opf |= REQ_SYNC;
+ ioend->io_bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);
submit_bio(ioend->io_bio);
ioend->io_bio = new;
}
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index e4c38703bf4e..50c96ee8108f 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -9,6 +9,7 @@
#include <linux/fs.h>
#include <linux/flex_proportions.h>
#include <linux/backing-dev-defs.h>
+#include <linux/blk_types.h>
struct bio;
@@ -102,6 +103,14 @@ struct writeback_control {
#endif
};
+static inline int wbc_to_write_flags(struct writeback_control *wbc)
+{
+ if (wbc->sync_mode == WB_SYNC_ALL)
+ return REQ_SYNC;
+
+ return 0;
+}
+
/*
* A wb_domain represents a domain that wb's (bdi_writeback's) belong to
* and are measured against each other in. There always is one global
diff --git a/mm/page_io.c b/mm/page_io.c
index a2651f58c86a..23f6d0d3470f 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -320,10 +320,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc,
ret = -ENOMEM;
goto out;
}
- if (wbc->sync_mode == WB_SYNC_ALL)
- bio_set_op_attrs(bio, REQ_OP_WRITE, REQ_SYNC);
- else
- bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
+ bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);
count_vm_event(PSWPOUT);
set_page_writeback(page);
unlock_page(page);
--
2.7.4
next prev parent reply other threads:[~2016-11-01 21:09 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-01 21:08 [PATCHSET] Throttled buffered writeback Jens Axboe
2016-11-01 21:08 ` [PATCH 1/8] block: add WRITE_BACKGROUND Jens Axboe
2016-11-02 14:55 ` Christoph Hellwig
2016-11-02 16:22 ` Jens Axboe
2016-11-05 22:27 ` Jan Kara
2016-11-01 21:08 ` Jens Axboe [this message]
2016-11-02 14:56 ` [PATCH 2/8] writeback: add wbc_to_write_flags() Christoph Hellwig
2016-11-01 21:08 ` [PATCH 3/8] writeback: mark background writeback as such Jens Axboe
2016-11-02 14:56 ` Christoph Hellwig
2016-11-05 22:26 ` Jan Kara
2016-11-01 21:08 ` [PATCH 4/8] writeback: track if we're sleeping on progress in balance_dirty_pages() Jens Axboe
2016-11-02 14:57 ` Christoph Hellwig
2016-11-02 14:59 ` Jens Axboe
2016-11-08 13:02 ` Jan Kara
2016-11-01 21:08 ` [PATCH 5/8] block: add code to track actual device queue depth Jens Axboe
2016-11-02 14:59 ` Christoph Hellwig
2016-11-02 15:02 ` Jens Axboe
2016-11-02 16:40 ` Johannes Thumshirn
2016-11-05 22:37 ` Jan Kara
2016-11-01 21:08 ` [PATCH 6/8] block: add scalable completion tracking of requests Jens Axboe
2016-11-08 13:30 ` Jan Kara
2016-11-08 15:25 ` Jens Axboe
2016-11-09 9:01 ` Jan Kara
2016-11-09 16:09 ` Jens Axboe
2016-11-09 19:52 ` Jens Axboe
2016-11-10 19:38 ` Jan Kara
2016-11-12 5:19 ` Jens Axboe
2016-11-01 21:08 ` [PATCH 7/8] blk-wbt: add general throttling mechanism Jens Axboe
2016-11-08 13:39 ` Jan Kara
2016-11-08 15:41 ` Jens Axboe
2016-11-09 8:40 ` Jan Kara
2016-11-09 16:07 ` Jens Axboe
2016-11-09 19:52 ` Jens Axboe
2016-11-10 19:36 ` Jan Kara
2016-11-10 0:00 ` Dave Chinner
2016-11-01 21:08 ` [PATCH 8/8] block: hook up writeback throttling Jens Axboe
2016-11-08 13:42 ` Jan Kara
2016-11-08 15:16 ` Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2016-10-26 20:52 [PATCHSET] block: buffered " Jens Axboe
2016-10-26 20:52 ` [PATCH 2/8] writeback: add wbc_to_write_flags() Jens Axboe
2016-09-07 14:46 [PATCH 0/8] Throttled background buffered writeback v7 Jens Axboe
2016-09-07 14:46 ` [PATCH 2/8] writeback: add wbc_to_write_flags() Jens Axboe
2016-08-31 17:05 [PATCHSET v6] Throttled background buffered writeback Jens Axboe
2016-08-31 17:05 ` [PATCH 2/8] writeback: add wbc_to_write_flags() Jens Axboe
2016-08-31 23:32 ` Omar Sandoval
2016-09-01 3:54 ` Jens Axboe
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