From: npiggin@suse.de
To: akpm@linux-foundation.org, torvalds@linux-foundation.org
Cc: linux-mm@kvack.org, glommer@redhat.com, rjw@sisk.pl
Subject: [patch 1/9] mm: vmalloc allocator off by one
Date: Sat, 08 Nov 2008 13:15:13 +1100 [thread overview]
Message-ID: <20081108022013.561474000@nick.local0.net> (raw)
In-Reply-To: <20081108021512.686515000@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 +363,7 @@ 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:[~2008-11-08 2:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-08 2:15 [patch 0/9] vmalloc fixes and improvements npiggin
2008-11-08 2:15 ` npiggin [this message]
2008-11-08 2:15 ` [patch 2/9] mm: vmalloc failure flush fix npiggin
2008-11-08 2:15 ` [patch 3/9] mm: vmalloc search restart fix npiggin
2008-11-08 2:15 ` [patch 4/9] mm: vmalloc tweak failure printk npiggin
2008-11-08 2:15 ` [patch 5/9] mm: vmalloc improve vmallocinfo npiggin
2008-11-08 2:15 ` [patch 6/9] mm: vmalloc guard fix npiggin
2008-11-08 2:15 ` [patch 7/9] mm: vmalloc use mutex for purge npiggin
2008-11-08 2:15 ` [patch 8/9] mm: vmalloc make guard configurable npiggin
2008-11-08 2:15 ` [patch 9/9] mm: vmalloc make lazy unmapping configurable npiggin
2008-11-08 5:13 ` [patch 0/9] vmalloc fixes and improvements Linus Torvalds
2008-11-08 5:41 ` Nick Piggin
2008-11-08 15:00 ` Johannes Weiner
2008-11-09 2:15 ` Nick Piggin
2008-11-08 17:37 ` Linus Torvalds
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