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block: remove __sync_blockdev

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Instead offer a new sync_blockdev_nowait helper for the !wait case.
This new helper is exported as it will grow modular callers in a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211019062530.2174626-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2021-10-19 08:25:25 +02:00
committed by Jens Axboe
parent 9a208ba5c9
commit 70164eb6cc
4 changed files with 15 additions and 13 deletions
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fs/sync.c
+4 -3
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@@ -3,6 +3,7 @@
* High-level sync()-related operations
*/
#include <linux/blkdev.h>
#include <linux/kernel.h>
#include <linux/file.h>
#include <linux/fs.h>
@@ -45,7 +46,7 @@ int sync_filesystem(struct super_block *sb)
/*
* Do the filesystem syncing work. For simple filesystems
* writeback_inodes_sb(sb) just dirties buffers with inodes so we have
* to submit I/O for these buffers via __sync_blockdev(). This also
* to submit I/O for these buffers via sync_blockdev(). This also
* speeds up the wait == 1 case since in that case write_inode()
* methods call sync_dirty_buffer() and thus effectively write one block
* at a time.
@@ -53,14 +54,14 @@ int sync_filesystem(struct super_block *sb)
writeback_inodes_sb(sb, WB_REASON_SYNC);
if (sb->s_op->sync_fs)
sb->s_op->sync_fs(sb, 0);
ret = __sync_blockdev(sb->s_bdev, 0);
ret = sync_blockdev_nowait(sb->s_bdev);
if (ret < 0)
return ret;
sync_inodes_sb(sb);
if (sb->s_op->sync_fs)
sb->s_op->sync_fs(sb, 1);
return __sync_blockdev(sb->s_bdev, 1);
return sync_blockdev(sb->s_bdev);
}
EXPORT_SYMBOL(sync_filesystem);