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authorJeremy Fitzhardinge <[email protected]>2010-03-26 15:28:51 -0700
committerKonrad Rzeszutek Wilk <[email protected]>2010-07-27 11:49:09 -0400
commita0d40c80256e31b23849f2ba781b74bf0218a1fa (patch)
treef89ad006e486c021d95db3f37763558556d731e1 /include/linux
parent08bbc9da92f7e44b9c208c6a1adba70c403b255e (diff)
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 <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Acked-by: Nick Piggin <[email protected]>
Diffstat (limited to 'include/linux')
-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() */