diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-05-31 14:55:24 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-06-05 10:56:46 -0600 |
| commit | cf056a43121559d3642419917d405c3237ded90a (patch) | |
| tree | cf61d333adf4d030bf719d814a9aec20e99fe00b /Documentation | |
| parent | c0c1a7dcb6f5db4500e6574294674213bc24940c (diff) | |
init: improve the name_to_dev_t interface
name_to_dev_t has a very misleading name, that doesn't make clear
it should only be used by the early init code, and also has a bad
calling convention that doesn't allow returning different kinds of
errors. Rename it to early_lookup_bdev to make the use case clear,
and return an errno, where -EINVAL means the string could not be
parsed, and -ENODEV means it the string was valid, but there was
no device found for it.
Also stub out the whole call for !CONFIG_BLOCK as all the non-block
root cases are always covered in the caller.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230531125535.676098-14-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 457c342d1597..a6bc31349cbb 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5453,8 +5453,8 @@ root= [KNL] Root filesystem Usually this a a block device specifier of some kind, - see the name_to_dev_t comment in init/do_mounts.c for - details. + see the early_lookup_bdev comment in init/do_mounts.c + for details. Alternatively this can be "ram" for the legacy initial ramdisk, "nfs" and "cifs" for root on a network file system, or "mtd" and "ubi" for mounting from raw flash. |