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authorTejun Heo <tj@kernel.org>2009-08-14 15:00:49 +0900
committerTejun Heo <tj@kernel.org>2009-08-14 15:00:49 +0900
commit08fc45806103e59a37418e84719b878f9bb32540 (patch)
tree8b39b7769fd42457bdb2950ce02d9893f39c0b7d /mm/percpu.c
parent00ae4064b1445524752575dd84df227c0687c99d (diff)
downloadvexpress-lsk-08fc45806103e59a37418e84719b878f9bb32540.tar.gz
percpu: build first chunk allocators selectively
There's no need to build unused first chunk allocators in. Define CONFIG_NEED_PER_CPU_*_FIRST_CHUNK and let archs enable them selectively. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'mm/percpu.c')
-rw-r--r--mm/percpu.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 6feac793490..7971997de31 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1414,8 +1414,9 @@ size_t __init pcpu_setup_first_chunk(size_t static_size, size_t reserved_size,
return pcpu_unit_size;
}
-static size_t pcpu_calc_fc_sizes(size_t static_size, size_t reserved_size,
- ssize_t *dyn_sizep)
+static inline size_t pcpu_calc_fc_sizes(size_t static_size,
+ size_t reserved_size,
+ ssize_t *dyn_sizep)
{
size_t size_sum;
@@ -1427,6 +1428,8 @@ static size_t pcpu_calc_fc_sizes(size_t static_size, size_t reserved_size,
return size_sum;
}
+#if defined(CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK) || \
+ !defined(CONFIG_HAVE_SETUP_PER_CPU_AREA)
/**
* pcpu_embed_first_chunk - embed the first percpu chunk into bootmem
* @static_size: the size of static percpu area in bytes
@@ -1495,7 +1498,10 @@ ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size,
return pcpu_setup_first_chunk(static_size, reserved_size, dyn_size,
unit_size, base, NULL);
}
+#endif /* CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK ||
+ !CONFIG_HAVE_SETUP_PER_CPU_AREA */
+#ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK
/**
* pcpu_page_first_chunk - map the first chunk using PAGE_SIZE pages
* @static_size: the size of static percpu area in bytes
@@ -1598,12 +1604,9 @@ out_free_ar:
free_bootmem(__pa(pages), pages_size);
return ret;
}
+#endif /* CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK */
-/*
- * Large page remapping first chunk setup helper
- */
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-
+#ifdef CONFIG_NEED_PER_CPU_LPAGE_FIRST_CHUNK
/**
* pcpu_lpage_build_unit_map - build unit_map for large page remapping
* @static_size: the size of static percpu area in bytes
@@ -1982,7 +1985,7 @@ void *pcpu_lpage_remapped(void *kaddr)
return NULL;
}
-#endif
+#endif /* CONFIG_NEED_PER_CPU_LPAGE_FIRST_CHUNK */
/*
* Generic percpu area setup.