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proc: make config PROC_CHILDREN depend on PROC_FS 

Commit 2e13ba54a2 ("fs, proc: introduce CONFIG_PROC_CHILDREN")
introduces the config PROC_CHILDREN to configure kernels to provide the
/proc/<pid>/task/<tid>/children file.

When one deselects PROC_FS for kernel builds without /proc/, the config
PROC_CHILDREN has no effect anymore, but is still visible in menuconfig.

Add the dependency on PROC_FS to make the PROC_CHILDREN option disappear
for kernel builds without /proc/.

Link: https://lkml.kernel.org/r/20220909122529.1941-1-lukas.bulwahn@gmail.com
Fixes: 2e13ba54a2 ("fs, proc: introduce CONFIG_PROC_CHILDREN")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>

Cc: Iago López Galeiras <iago@endocode.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Lukas Bulwahn 2022-09-09 14:25:29 +02:00 committed by Andrew Morton
parent 5ca14835dc
commit 7ec354baa2
1 changed files with 1 additions and 0 deletions
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fs/proc/Kconfig
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@ -92,6 +92,7 @@ config PROC_PAGE_MONITOR
config PROC_CHILDREN
bool "Include /proc/<pid>/task/<tid>/children file"
depends on PROC_FS
default n
help
Provides a fast way to retrieve first level children pids of a task. See