mm: describe @flags parameter in memalloc_flags_save()

mm: describe @flags parameter in memalloc_flags_save()

Patch series "mm kernel-doc fixes".

Here are kernel-doc fixes for mm subsystem.  I'm also including textsearch
fix since there's currently no maintainer for include/linux/textsearch.h
(get_maintainer.pl only shows LKML).

This patch (of 4):

Sphinx reports kernel-doc warning:

WARNING: ./include/linux/sched/mm.h:332 function parameter 'flags' not described in 'memalloc_flags_save'

Describe @flags to fix it.

Link: https://lkml.kernel.org/r/20251219014006.16328-2-bagasdotme@gmail.com
Link: https://lkml.kernel.org/r/20251219014006.16328-3-bagasdotme@gmail.com
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Fixes: 3f6d5e6a468d ("mm: introduce memalloc_flags_{save,restore}")
Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
Acked-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>