The patch titled
Subject: mm: sparse: remove __section_nr() function
has been added to the -mm tree. Its filename is
mm-sparse-remove-__section_nr-function.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-sparse-remove-__section_nr-function.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-sparse-remove-__section_nr-function.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Ohhoon Kwon <ohoono.kwon@xxxxxxxxxxx>
Subject: mm: sparse: remove __section_nr() function
As the last users of __section_nr() are gone, let's remove unused function
__section_nr().
Link: https://lkml.kernel.org/r/20210707150212.855-4-ohoono.kwon@xxxxxxxxxxx
Signed-off-by: Ohhoon Kwon <ohoono.kwon@xxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mmzone.h | 1 -
mm/sparse.c | 26 --------------------------
2 files changed, 27 deletions(-)
--- a/include/linux/mmzone.h~mm-sparse-remove-__section_nr-function
+++ a/include/linux/mmzone.h
@@ -1342,7 +1342,6 @@ static inline struct mem_section *__nr_t
return NULL;
return &mem_section[SECTION_NR_TO_ROOT(nr)][nr & SECTION_ROOT_MASK];
}
-extern unsigned long __section_nr(struct mem_section *ms);
extern size_t mem_section_usage_size(void);
/*
--- a/mm/sparse.c~mm-sparse-remove-__section_nr-function
+++ a/mm/sparse.c
@@ -109,32 +109,6 @@ static inline int sparse_index_init(unsi
}
#endif
-#ifdef CONFIG_SPARSEMEM_EXTREME
-unsigned long __section_nr(struct mem_section *ms)
-{
- unsigned long root_nr;
- struct mem_section *root = NULL;
-
- for (root_nr = 0; root_nr < NR_SECTION_ROOTS; root_nr++) {
- root = __nr_to_section(root_nr * SECTIONS_PER_ROOT);
- if (!root)
- continue;
-
- if ((ms >= root) && (ms < (root + SECTIONS_PER_ROOT)))
- break;
- }
-
- VM_BUG_ON(!root);
-
- return (root_nr * SECTIONS_PER_ROOT) + (ms - root);
-}
-#else
-unsigned long __section_nr(struct mem_section *ms)
-{
- return (unsigned long)(ms - mem_section[0]);
-}
-#endif
-
/*
* During early boot, before section_mem_map is used for an actual
* mem_map, we use section_mem_map to store the section's NUMA
_
Patches currently in -mm which might be from ohoono.kwon@xxxxxxxxxxx are
mm-sparse-pass-section_nr-to-section_mark_present.patch
mm-sparse-pass-section_nr-to-find_memory_block.patch
mm-sparse-remove-__section_nr-function.patch
