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authorChristoph Hellwig <hch@lst.de>2021-10-19 09:25:30 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-04-27 15:38:50 +0300
commit6eb927ee189f39746bcb02123d270ef04457eab6 (patch)
tree3d42199f152bf2f8c88ad8bab796bd9b54a639ee /fs
parent7877e7a5a52e1c9716326b94dfe6c7e6cd7bce5a (diff)
downloadlinux-6eb927ee189f39746bcb02123d270ef04457eab6.tar.xz
block: simplify the block device syncing code
[ Upstream commit 1e03a36bdff4709c1bbf0f57f60ae3f776d51adf ] Get rid of the indirections and just provide a sync_bdevs helper for the generic sync code. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211019062530.2174626-8-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/internal.h6
-rw-r--r--fs/sync.c23
2 files changed, 4 insertions, 25 deletions
diff --git a/fs/internal.h b/fs/internal.h
index b5caa16f4645..cdd83d4899bb 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -23,17 +23,11 @@ struct pipe_inode_info;
#ifdef CONFIG_BLOCK
extern void __init bdev_cache_init(void);
-void iterate_bdevs(void (*)(struct block_device *, void *), void *);
void emergency_thaw_bdev(struct super_block *sb);
#else
static inline void bdev_cache_init(void)
{
}
-
-static inline void iterate_bdevs(void (*f)(struct block_device *, void *),
- void *arg)
-{
-}
static inline int emergency_thaw_bdev(struct super_block *sb)
{
return 0;
diff --git a/fs/sync.c b/fs/sync.c
index a621089eb07e..3ce8e2137f31 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -78,21 +78,6 @@ static void sync_fs_one_sb(struct super_block *sb, void *arg)
sb->s_op->sync_fs(sb, *(int *)arg);
}
-static void fdatawrite_one_bdev(struct block_device *bdev, void *arg)
-{
- filemap_fdatawrite(bdev->bd_inode->i_mapping);
-}
-
-static void fdatawait_one_bdev(struct block_device *bdev, void *arg)
-{
- /*
- * We keep the error status of individual mapping so that
- * applications can catch the writeback error using fsync(2).
- * See filemap_fdatawait_keep_errors() for details.
- */
- filemap_fdatawait_keep_errors(bdev->bd_inode->i_mapping);
-}
-
/*
* Sync everything. We start by waking flusher threads so that most of
* writeback runs on all devices in parallel. Then we sync all inodes reliably
@@ -111,8 +96,8 @@ void ksys_sync(void)
iterate_supers(sync_inodes_one_sb, NULL);
iterate_supers(sync_fs_one_sb, &nowait);
iterate_supers(sync_fs_one_sb, &wait);
- iterate_bdevs(fdatawrite_one_bdev, NULL);
- iterate_bdevs(fdatawait_one_bdev, NULL);
+ sync_bdevs(false);
+ sync_bdevs(true);
if (unlikely(laptop_mode))
laptop_sync_completion();
}
@@ -133,10 +118,10 @@ static void do_sync_work(struct work_struct *work)
*/
iterate_supers(sync_inodes_one_sb, &nowait);
iterate_supers(sync_fs_one_sb, &nowait);
- iterate_bdevs(fdatawrite_one_bdev, NULL);
+ sync_bdevs(false);
iterate_supers(sync_inodes_one_sb, &nowait);
iterate_supers(sync_fs_one_sb, &nowait);
- iterate_bdevs(fdatawrite_one_bdev, NULL);
+ sync_bdevs(false);
printk("Emergency Sync complete\n");
kfree(work);
}