From 97f19073a16b773eea17cc3a1b22424c34a102d7 Mon Sep 17 00:00:00 2001
From: Jordan Crouse <jcrouse@codeaurora.org>
Date: Wed, 10 Sep 2014 10:09:53 -0600
Subject: [PATCH] fs/seq_file: Use vmalloc by default for allocations >
PAGE_SIZE
Some OOM implementations are pretty trigger happy when it comes to
releasing memory for kmalloc() allocations. We might as well head
straight to vmalloc for allocations over PAGE_SIZE.
Bug: 17871993
Change-Id: Ic0dedbadc8bf551d34cc5d77c8073938d4adef80
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>
---
fs/seq_file.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/seq_file.c b/fs/seq_file.c
index df5e89002ee2..03f46abf8930 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -36,9 +36,11 @@ static void *seq_buf_alloc(unsigned long size)
{
void *buf;
- buf = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
- if (!buf && size > PAGE_SIZE)
+ if (size > PAGE_SIZE)
buf = vmalloc(size);
+ else
+ buf = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
+
return buf;
}
--
GitLab