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-rw-r--r--mm/page-writeback.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index ded57d528060..94c6d8988ab3 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -126,8 +126,6 @@ static void background_writeout(unsigned long _min_pages);
126static struct prop_descriptor vm_completions; 126static struct prop_descriptor vm_completions;
127static struct prop_descriptor vm_dirties; 127static struct prop_descriptor vm_dirties;
128 128
129static unsigned long determine_dirtyable_memory(void);
130
131/* 129/*
132 * couple the period to the dirty_ratio: 130 * couple the period to the dirty_ratio:
133 * 131 *
@@ -347,7 +345,13 @@ static unsigned long highmem_dirtyable_memory(unsigned long total)
347#endif 345#endif
348} 346}
349 347
350static unsigned long determine_dirtyable_memory(void) 348/**
349 * determine_dirtyable_memory - amount of memory that may be used
350 *
351 * Returns the numebr of pages that can currently be freed and used
352 * by the kernel for direct mappings.
353 */
354unsigned long determine_dirtyable_memory(void)
351{ 355{
352 unsigned long x; 356 unsigned long x;
353 357