diff options
| author | Ezequiel Garcia <ezequiel@collabora.com> | 2021-08-01 20:45:07 -0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2021-08-06 22:05:10 +0200 |
| commit | 6bc219b7b2cdd9d45ea15926d32c5e5c1d63881e (patch) | |
| tree | 106296ca9c309af19b80be338eaacc1ff9790758 /drivers/mtd/Kconfig | |
| parent | ff44b90b325dcd585cdba6ded6c9c52ea8ddead0 (diff) | |
| download | lwn-6bc219b7b2cdd9d45ea15926d32c5e5c1d63881e.tar.gz lwn-6bc219b7b2cdd9d45ea15926d32c5e5c1d63881e.zip | |
mtdblock: Update old JFFS2 mention in Kconfig
JFFS2 can be mounted without 'mtdblock' since
a really, really long time. Some git-log
archaeology shows that in 2006 it was possible
to use 'root=' to mount a JFFS2 rootfs:
commit e9482b4374e2596e6f3f1ab30c4ea469f4ac6311
Author: Joern Engel <joern@wh.fh-wedel.de>
Date: Tue May 30 14:25:46 2006 +0200
[MTD] Allow alternate JFFS2 mount variant for root filesystem.
With this patch, "root=mtd3" and "root=mtd:foo" work for a JFFS2 rootfs.
However, there are still plenty of tutorials that mention
mtdblock, so users are still taking this route. Update the Kconfig
to reflect this is no longer needed.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210801234509.18774-6-ezequiel@collabora.com
Diffstat (limited to 'drivers/mtd/Kconfig')
| -rw-r--r-- | drivers/mtd/Kconfig | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 8bab6f8718a9..3a1f87def25b 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -45,10 +45,9 @@ config MTD_BLOCK on RAM chips in this manner. This block device is a user of MTD devices performing that function. - At the moment, it is also required for the Journalling Flash File - System(s) to obtain a handle on the MTD device when it's mounted - (although JFFS and JFFS2 don't actually use any of the functionality - of the mtdblock device). + Note that mounting a JFFS2 filesystem doesn't require using mtdblock. + It's possible to mount a rootfs using the MTD device on the "root=" + bootargs as "root=mtd2" or "root=mtd:name_of_device". Later, it may be extended to perform read/erase/modify/write cycles on flash chips to emulate a smaller block size. Needless to say, |