6.1-stable review patch. If anyone has any objections, please let me know.
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From: Christoph Hellwig hch@lst.de
[ Upstream commit 1898efcdbed32bb1c67269c985a50bab0dbc9493 ]
Propagate the per-queue stable_write flags into each bdev inode in bdev_add. This makes sure devices that require stable writes have it set for I/O on the block device node as well.
Note that this doesn't cover the case of a flag changing on a live device yet. We should handle that as well, but I plan to cover it as part of a more general rework of how changing runtime paramters on block devices works.
Fixes: 1cb039f3dc16 ("bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag") Reported-by: Ilya Dryomov idryomov@gmail.com Signed-off-by: Christoph Hellwig hch@lst.de Link: https://lore.kernel.org/r/20231025141020.192413-3-hch@lst.de Tested-by: Ilya Dryomov idryomov@gmail.com Reviewed-by: Darrick J. Wong djwong@kernel.org Signed-off-by: Christian Brauner brauner@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- block/bdev.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/block/bdev.c b/block/bdev.c index d699ecdb32604..b61502ec8da06 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -507,6 +507,8 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)
void bdev_add(struct block_device *bdev, dev_t dev) { + if (bdev_stable_writes(bdev)) + mapping_set_stable_writes(bdev->bd_inode->i_mapping); bdev->bd_dev = dev; bdev->bd_inode->i_rdev = dev; bdev->bd_inode->i_ino = dev;