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Date: Tue, 22 Feb 2022 14:17:17 +1100
From: NeilBrown <neilb@...e.de>
To: Andrew Morton <akpm@...ux-foundation.org>, Jan Kara <jack@...e.cz>,
Wu Fengguang <fengguang.wu@...el.com>,
Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
Jeff Layton <jlayton@...nel.org>,
Ilya Dryomov <idryomov@...il.com>,
Miklos Szeredi <miklos@...redi.hu>,
Trond Myklebust <trond.myklebust@...merspace.com>,
Anna Schumaker <anna.schumaker@...app.com>,
Ryusuke Konishi <konishi.ryusuke@...il.com>,
"Darrick J. Wong" <djwong@...nel.org>,
Philipp Reisner <philipp.reisner@...bit.com>,
Lars Ellenberg <lars.ellenberg@...bit.com>,
Paolo Valente <paolo.valente@...aro.org>,
Jens Axboe <axboe@...nel.dk>
Cc: linux-doc@...r.kernel.org, linux-mm@...ck.org,
linux-nilfs@...r.kernel.org, linux-nfs@...r.kernel.org,
linux-fsdevel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net, linux-ext4@...r.kernel.org,
ceph-devel@...r.kernel.org, drbd-dev@...ts.linbit.com,
linux-kernel@...r.kernel.org
Subject: [PATCH 09/11] f2fs: replace congestion_wait() calls with
io_schedule_timeout()
As congestion is no longer tracked, congestion_wait() is effectively
equivalent to io_schedule_timeout().
So introduce f2fs_io_schedule_timeout() which sets TASK_UNINTERRUPTIBLE
and call that instead.
Signed-off-by: NeilBrown <neilb@...e.de>
---
fs/f2fs/compress.c | 4 +---
fs/f2fs/data.c | 3 +--
fs/f2fs/f2fs.h | 6 ++++++
fs/f2fs/segment.c | 8 +++-----
fs/f2fs/super.c | 6 ++----
5 files changed, 13 insertions(+), 14 deletions(-)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index d0c3aeba5945..2f95559025ad 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1505,9 +1505,7 @@ static int f2fs_write_raw_pages(struct compress_ctx *cc,
if (IS_NOQUOTA(cc->inode))
return 0;
ret = 0;
- cond_resched();
- congestion_wait(BLK_RW_ASYNC,
- DEFAULT_IO_TIMEOUT);
+ f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
goto retry_write;
}
return ret;
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 8c417864c66a..d428ddfd42ee 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3047,8 +3047,7 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
} else if (ret == -EAGAIN) {
ret = 0;
if (wbc->sync_mode == WB_SYNC_ALL) {
- cond_resched();
- congestion_wait(BLK_RW_ASYNC,
+ f2fs_io_schedule_timeout(
DEFAULT_IO_TIMEOUT);
goto retry_write;
}
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 68b44015514f..467f5dbdc7d1 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4426,6 +4426,12 @@ static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
}
+static inline void f2fs_io_schedule_timeout(long timeout)
+{
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ io_schedule_timeout(timeout);
+}
+
#define EFSBADCRC EBADMSG /* Bad CRC detected */
#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 1dabc8244083..6ff20da44ad7 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -313,8 +313,7 @@ void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure)
skip:
iput(inode);
}
- congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
- cond_resched();
+ f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
if (gc_failure) {
if (++looped >= count)
return;
@@ -803,8 +802,7 @@ int f2fs_flush_device_cache(struct f2fs_sb_info *sbi)
do {
ret = __submit_flush_wait(sbi, FDEV(i).bdev);
if (ret)
- congestion_wait(BLK_RW_ASYNC,
- DEFAULT_IO_TIMEOUT);
+ f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
} while (ret && --count);
if (ret) {
@@ -3133,7 +3131,7 @@ static unsigned int __issue_discard_cmd_range(struct f2fs_sb_info *sbi,
blk_finish_plug(&plug);
mutex_unlock(&dcc->cmd_lock);
trimmed += __wait_all_discard_cmd(sbi, NULL);
- congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
+ f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
goto next;
}
skip:
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index baefd398ec1a..ebd32daf052c 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2135,8 +2135,7 @@ static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
/* we should flush all the data to keep data consistency */
do {
sync_inodes_sb(sbi->sb);
- cond_resched();
- congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
+ f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
} while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
if (unlikely(retry < 0))
@@ -2504,8 +2503,7 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
&page, &fsdata);
if (unlikely(err)) {
if (err == -ENOMEM) {
- congestion_wait(BLK_RW_ASYNC,
- DEFAULT_IO_TIMEOUT);
+ f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
goto retry;
}
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
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