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block: default BLOCK_LEGACY_AUTOLOAD to y 

As Luis reported, losetup currently doesn't properly create the loop
device without this if the device node already exists because old
scripts created it manually.  So default to y for now and remove the
aggressive removal schedule.

Reported-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220225181440.1351591-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2022-02-25 19:14:40 +01:00 committed by Jens Axboe
parent 86d7331299
commit 451f0b6f4c
2 changed files with 4 additions and 6 deletions
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8
block/Kconfig
View File

@ -28,15 +28,13 @@ if BLOCK
config BLOCK_LEGACY_AUTOLOAD
bool "Legacy autoloading support"
default y
help
Enable loading modules and creating block device instances based on
accesses through their device special file. This is a historic Linux
feature and makes no sense in a udev world where device files are
created on demand.
Say N here unless booting or other functionality broke without it, in
which case you should also send a report to your distribution and
linux-block@vger.kernel.org.
created on demand, but scripts that manually create device nodes and
then call losetup might rely on this behavior.
config BLK_RQ_ALLOC_TIME
bool

2
block/bdev.c
View File

@ -738,7 +738,7 @@ struct block_device *blkdev_get_no_open(dev_t dev)
inode = ilookup(blockdev_superblock, dev);
if (inode)
pr_warn_ratelimited(
"block device autoloading is deprecated. It will be removed in Linux 5.19\n");
"block device autoloading is deprecated and will be removed.\n");
}
if (!inode)
return NULL;