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| author | Yuezhang Mo <Yuezhang.Mo@sony.com> | 2022-04-12 12:23:10 +0900 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2022-05-23 11:17:30 +0900 |
| commit | 97d6fb1b48f5e6f6d58028593defe8a23641b0b4 (patch) | |
| tree | 25ac3bf238f7da9006951e87b6c359a1d04b6f6b /block | |
| parent | 9b002894b4c252169abc26720452bf3746114b20 (diff) | |
| download | lwn-97d6fb1b48f5e6f6d58028593defe8a23641b0b4.tar.gz lwn-97d6fb1b48f5e6f6d58028593defe8a23641b0b4.zip | |
block: add sync_blockdev_range()
sync_blockdev_range() is to support syncing multiple sectors
with as few block device requests as possible, it is helpful
to make the block device to give full play to its performance.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bdev.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/block/bdev.c b/block/bdev.c index 13de871fa816..8b549b071bd6 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -200,6 +200,13 @@ int sync_blockdev(struct block_device *bdev) } EXPORT_SYMBOL(sync_blockdev); +int sync_blockdev_range(struct block_device *bdev, loff_t lstart, loff_t lend) +{ + return filemap_write_and_wait_range(bdev->bd_inode->i_mapping, + lstart, lend); +} +EXPORT_SYMBOL(sync_blockdev_range); + /* * Write out and wait upon all dirty data associated with this * device. Filesystem data as well as the underlying block |