From 4f8d31d72708f4ae08913e7f42fdc4e852597ed3 Mon Sep 17 00:00:00 2001
From: Maksym Planeta <mcsim.planeta@gmail.com>
Date: Mon, 23 Jan 2012 23:27:06 +0200
Subject: Correct available space check.

*tmpfs/node.c (diskfs_grow): Parameter size denotes new size, not delta.
So available space check should take that into account.
---
 tmpfs/node.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'tmpfs/node.c')

diff --git a/tmpfs/node.c b/tmpfs/node.c
index ccc077ca..9d3647f8 100644
--- a/tmpfs/node.c
+++ b/tmpfs/node.c
@@ -443,7 +443,8 @@ diskfs_grow (struct node *np, off_t size, struct protid *cred)
     return 0;
 
   size = round_page (size);
-  if (round_page (tmpfs_space_used + size) / vm_page_size > tmpfs_page_limit)
+  if (round_page (tmpfs_space_used + size - np->allocsize)
+      / vm_page_size > tmpfs_page_limit)
     return ENOSPC;
 
   if (default_pager == MACH_PORT_NULL)
-- 
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