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| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-08-27 22:42:04 +0200 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-10-22 21:57:25 +0200 |
| commit | c3798062f100c3e1d4ae1241bc536f3b1f28a6ca (patch) | |
| tree | c62ab3fb20be784991f6988cd46382d669110c43 /arch/x86/include/asm/xen | |
| parent | xen: convert p2m to a 3 level tree (diff) | |
| download | linux-c3798062f100c3e1d4ae1241bc536f3b1f28a6ca.tar.xz linux-c3798062f100c3e1d4ae1241bc536f3b1f28a6ca.zip | |
xen: add return value to set_phys_to_machine()
set_phys_to_machine() can return false on failure, which means a memory
allocation failure for the p2m structure. It can only fail if setting
the mfn for a pfn in previously unused address space. It is guaranteed
to succeed if you're setting a mapping to INVALID_P2M_ENTRY or updating
the mfn for an existing pfn.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/include/asm/xen')
| -rw-r--r-- | arch/x86/include/asm/xen/page.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index bf5f7d32bd08..e40ca6e67bb5 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -37,7 +37,7 @@ typedef struct xpaddr { extern unsigned long get_phys_to_machine(unsigned long pfn); -extern void set_phys_to_machine(unsigned long pfn, unsigned long mfn); +extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn); static inline unsigned long pfn_to_mfn(unsigned long pfn) { |