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* block: don't return -EINVAL for not found names in devt_from_devnameChristoph Hellwig2023-06-221-2/+2
| | | | | | | | | | | | When we didn't find a device and didn't guess it might be a partition, it might still show up later, so don't disable rootwait for it by returning -EINVAL. Fixes: 079caa35f786 ("init: clear root_wait on all invalid root= strings") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20230622150644.600327-1-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: Improve kernel-doc headersBart Van Assche2023-06-211-1/+2
| | | | | | | | | | | | | | | | Fix the documentation of the devt_from_partuuid() return value. Fix the following two recently introduced kernel-doc warnings: block/bdev.c:570: warning: Function parameter or member 'hops' not described in 'bd_finish_claiming' block/early-lookup.c:46: warning: Function parameter or member 'devt' not described in 'devt_from_partuuid' Cc: Christoph Hellwig <hch@lst.de> Fixes: 0718afd47f70 ("block: introduce holder ops") Fixes: cf056a431215 ("init: improve the name_to_dev_t interface") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20230621165054.743815-1-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: fix rootwait= againChristoph Hellwig2023-06-091-1/+1
| | | | | | | | | | | | | | The previous rootwait fix added an -EINVAL return to a completely bogus superflous branch, fix this. Fixes: 1341c7d2ccf4 ("block: fix rootwait=") Reported-by: Mark Brown <broonie@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Fabio Estevam <festevam@gmail.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230609051737.328930-1-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: fix rootwait=Christoph Hellwig2023-06-071-2/+2
| | | | | | | | | | | | Failures to look up the gendisk must return -ENODEV so that rootwait retries the lookup instead of -EINVAL which exits early. Fixes: cf056a431215 ("init: improve the name_to_dev_t interface") Reported-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20230607135746.92995-1-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: mark early_lookup_bdev as __initChristoph Hellwig2023-06-051-10/+9
| | | | | | | | | early_lookup_bdev is now only used during the early boot code as it should, so mark it __init to not waste run time memory on it. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20230531125535.676098-25-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: move more code to early-lookup.cChristoph Hellwig2023-06-051-0/+92
| | | | | | | | | | | | blk_lookup_devt is only used by code in early-lookup.c, so move it there. printk_all_partitions and it's helper bdevt_str are only used by the early init code in init/do_mounts.c, so they should go there as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20230531125535.676098-17-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
* block: move the code to do early boot lookup of block devices to block/Christoph Hellwig2023-06-051-0/+224
Create a new block/early-lookup.c to keep the early block device lookup code instead of having this code sit with the early mount code. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20230531125535.676098-16-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>