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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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11
block/bdev.c
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@@ -185,14 +185,13 @@ int sb_min_blocksize(struct super_block *sb, int size)
EXPORT_SYMBOL(sb_min_blocksize);
int __sync_blockdev(struct block_device *bdev, int wait)
int sync_blockdev_nowait(struct block_device *bdev)
{
if (!bdev)
return 0;
if (!wait)
return filemap_flush(bdev->bd_inode->i_mapping);
return filemap_write_and_wait(bdev->bd_inode->i_mapping);
return filemap_flush(bdev->bd_inode->i_mapping);
}
EXPORT_SYMBOL_GPL(sync_blockdev_nowait);
/*
* Write out and wait upon all the dirty data associated with a block
@@ -200,7 +199,9 @@ int __sync_blockdev(struct block_device *bdev, int wait)
*/
int sync_blockdev(struct block_device *bdev)
{
return __sync_blockdev(bdev, 1);
if (!bdev)
return 0;
return filemap_write_and_wait(bdev->bd_inode->i_mapping);
}
EXPORT_SYMBOL(sync_blockdev);