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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 14:49:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 14:49:54 -0700
commite18425a0abc8eafa8e98ecffac517bb0c0904f4b (patch)
tree5eb743e7201850de19496183554bb34c766948c4 /mm
parentd1794f2c5b5817eb79ccc5e00701ca748d1b073a (diff)
parent5806b81ac1c0c52665b91723fd4146a4f86e386b (diff)
Merge branch 'tracing/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (228 commits) ftrace: build fix for ftraced_suspend ftrace: separate out the function enabled variable ftrace: add ftrace_kill_atomic ftrace: use current CPU for function startup ftrace: start wakeup tracing after setting function tracer ftrace: check proper config for preempt type ftrace: trace schedule ftrace: define function trace nop ftrace: move sched_switch enable after markers ftrace: prevent ftrace modifications while being kprobe'd, v2 fix "ftrace: store mcount address in rec->ip" mmiotrace broken in linux-next (8-bit writes only) ftrace: avoid modifying kprobe'd records ftrace: freeze kprobe'd records kprobes: enable clean usage of get_kprobe ftrace: store mcount address in rec->ip ftrace: build fix with gcc 4.3 namespacecheck: fixes ftrace: fix "notrace" filtering priority ftrace: fix printout ...
Diffstat (limited to 'mm')
-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 789b6adbef3..b38f700825f 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -126,8 +126,6 @@ static void background_writeout(unsigned long _min_pages);
static struct prop_descriptor vm_completions;
static struct prop_descriptor vm_dirties;
-static unsigned long determine_dirtyable_memory(void);
-
/*
* couple the period to the dirty_ratio:
*
@@ -347,7 +345,13 @@ static unsigned long highmem_dirtyable_memory(unsigned long total)
#endif
}
-static unsigned long determine_dirtyable_memory(void)
+/**
+ * determine_dirtyable_memory - amount of memory that may be used
+ *
+ * Returns the numebr of pages that can currently be freed and used
+ * by the kernel for direct mappings.
+ */
+unsigned long determine_dirtyable_memory(void)
{
unsigned long x;