Re: [PATCH] exporting capability code/name pairs (try #4)

[Andrew G. Morgan]

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KaiGai,

Thanks for trying to accommodate me :-)

Kohei KaiGai wrote:
| In addition, Andrew suggested me to export these translation by symlinks
| to reduce the number of invocation of system call.

Yes, I wanted to make use of readlink() instead of open()/read()/close()
to access each unknown capability.

| However, current sysfs interface does not allows to create symlinks with
| invalid indication.

:-(

| Thus, this patch exports them as regular files.

What about using symlinks for the name files and text content for the
numeric ones? You could even drop the names/ and codes/ subdirectories too:

$ cat /sys/kernel/capability/20
cap_sys_pacct
$ ls -l /sys/kernel/capability/cap_mknod
lr--r--r--  1 root root 64 Feb  8 08:26 cap_mknod -> 27
$ cat /sys/kernel/capability/names/cap_mknod
cap_mknod

Cheers

Andrew
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