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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-03-27 01:28:51 +0300
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2010-07-27 19:49:09 +0400
commita0d40c80256e31b23849f2ba781b74bf0218a1fa (patch)
treef89ad006e486c021d95db3f37763558556d731e1 /include/linux/vmalloc.h
parent08bbc9da92f7e44b9c208c6a1adba70c403b255e (diff)
downloadlinux-a0d40c80256e31b23849f2ba781b74bf0218a1fa.tar.xz
vmap: add flag to allow lazy unmap to be disabled at runtime
Add a flag to force lazy_max_pages() to zero to prevent any outstanding mapped pages. We'll need this for Xen. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Nick Piggin <npiggin@suse.de>
Diffstat (limited to 'include/linux/vmalloc.h')
-rw-r--r--include/linux/vmalloc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 227c2a585e4f..b840fdaf438c 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -7,6 +7,8 @@
struct vm_area_struct; /* vma defining user mapping in mm_types.h */
+extern bool vmap_lazy_unmap;
+
/* bits in flags of vmalloc's vm_struct below */
#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
#define VM_ALLOC 0x00000002 /* vmalloc() */