From 597b99b09a007dfa8ddfce31c480765b0c7baa6a Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 10 Jun 2011 14:37:21 +0200
Subject: [PATCH] readahead-common: fix total memory size detection
sysinfo returns the total memory size in multiples of mem_unit bytes.
As long as the size in bytes fits into unsigned long, the kernel uses
mem_unit = 1, but this is not true on i386 with more than 4 GB RAM.
https://bugzilla.redhat.com/show_bug.cgi?id=712341
---
src/readahead-common.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/src/readahead-common.c b/src/readahead-common.c
index 8a75b2e..f0d57b4 100644
--- a/src/readahead-common.c
+++ b/src/readahead-common.c
@@ -154,9 +154,8 @@ bool enough_ram(void) {
assert_se(sysinfo(&si) >= 0);
- return si.totalram > 127 * 1024*1024; /* Enable readahead only
- * with at least 128MB
- * memory */
+ /* Enable readahead only with at least 128MB memory */
+ return si.totalram > 127 * 1024*1024 / si.mem_unit;
}
int open_inotify(void) {
--
1.7.4.4