From: npiggin@suse.de
From: Nick Piggin <npiggin@suse.de>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, glommer@redhat.com
Subject: [patch 1/7] mm: vmalloc allocator off by one
Date: Tue, 11 Nov 2008 00:35:16 +1100 [thread overview]
Message-ID: <20081110133840.557025000@suse.de> (raw)
In-Reply-To: 20081110133515.011510000@suse.de
[-- Attachment #1: mm-vmalloc-gap-fix.patch --]
[-- Type: text/plain, Size: 793 bytes --]
Fix off by one bug in the KVA allocator that can leave gaps in the
address space.
Signed-off-by: Nick Piggin <npiggin@suse.de>
---
Index: linux-2.6/mm/vmalloc.c
===================================================================
--- linux-2.6.orig/mm/vmalloc.c
+++ linux-2.6/mm/vmalloc.c
@@ -362,7 +362,7 @@ retry:
goto found;
}
- while (addr + size >= first->va_start && addr + size <= vend) {
+ while (addr + size > first->va_start && addr + size <= vend) {
addr = ALIGN(first->va_end + PAGE_SIZE, align);
n = rb_next(&first->rb_node);
--
--
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next prev parent reply other threads:[~2008-11-10 13:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-10 13:35 [patch 0/7] vmalloc fixes and improvements #2 npiggin
2008-11-10 13:35 ` npiggin, Nick Piggin [this message]
2008-11-10 13:35 ` [patch 2/7] mm: vmalloc failure flush fix npiggin, Nick Piggin
2008-11-10 13:35 ` [patch 3/7] mm: vmalloc search restart fix npiggin, Glauber Costa
2008-11-10 13:35 ` [patch 4/7] mm: vmalloc tweak failure printk npiggin, Glauber Costa
2008-11-10 13:35 ` [patch 5/7] mm: vmalloc improve vmallocinfo npiggin, Glauber Costa
2008-11-10 13:35 ` [patch 6/7] mm: vmalloc use mutex for purge npiggin, Nick Piggin
2008-11-10 13:35 ` [patch 7/7] mm: vmalloc make lazy unmapping configurable npiggin, Nick Piggin
2008-11-11 18:25 ` [patch 0/7] vmalloc fixes and improvements #2 Glauber Costa
2008-11-12 3:45 ` Nick Piggin
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