hugeadm has always accepted deltas for adjusting huge page pool sizes, but
when support was added for 16G page sizes an unsigned value was used. This
causes problems when a negative delta is used, instead of shrinking the
pool, the pool size is set to a very large number, usually crippling the
machine as the kernel attempts to use all of the memory as huge pages.
This patch changes the value to a signed long long which is still large
enough to hold a 16G page size.
Signed-off-by: Eric B Munson <emun...@mgebm.net>
---
hugeadm.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hugeadm.c b/hugeadm.c
index 5800cfe..fe5f89f 100644
--- a/hugeadm.c
+++ b/hugeadm.c
@@ -1047,7 +1047,7 @@ enum {
static long value_adjust(char *adjust_str, long base, long page_size)
{
- unsigned long long adjust;
+ long long adjust;
char *iter;
/* Convert and validate the adjust. */
--
1.7.0.4
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