On Tue, 29 Jan 2019 14:40:08 +0100 Jean-Jacques Hiblot <[email protected]> wrote:
> This series adds support for the creation of symbolic links on ext4 > file-systems. > The motivation behind this work is to have the ability to "do" the job > of update-alternatives in u-boot. > Firmware on TI's platform are usually managed with > update-alternatives and are thus targeted by a symbolic link. In some > situations we need the ability to select an alternate firmware before > the linux kernel is started so that when a early driver needing the > firmware comes up, it can be fed the firmware of our choice. > > Tested on a am57xx_evm, using a EXT4 partition on external SDcard. > The filesystem can be checked later with: fsck.ext4 -f <dev> > > usage example: > => ln mmc 0:2 zImage /boot/the_linux_kernel Could you also add a test for symlink to sandbox? This is a high level code (FS ext4), so it can be nice tested there. > > > Jean-Jacques Hiblot (3): > fs: ext4: constify the buffer passed to write functions > fs: ext4: Add support for the creation of symbolic links > fs: Add a new command to create symbolic links > > cmd/fs.c | 14 ++++++++++++ > fs/ext4/ext4_common.c | 6 ++--- > fs/ext4/ext4_common.h | 2 +- > fs/ext4/ext4_write.c | 51 > ++++++++++++++++++++++++++++++++----------- fs/fs.c | > 44 +++++++++++++++++++++++++++++++++++++ include/ext4fs.h | 5 > +++-- include/fs.h | 2 ++ > 7 files changed, 105 insertions(+), 19 deletions(-) > Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: [email protected]
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