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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-30 19:33:48 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-30 19:33:48 +0200 |
| commit | 15dd859cacf312f606f54502d1f66537a1e5c78c (patch) | |
| tree | e50e125eaa6da83fa715704e53c1bde013d1ef8e /lib/iommu-helper.c | |
| parent | b2d9d33412b9d13a40cd314d93ab517950fc5950 (diff) | |
| parent | 6e86841d05f371b5b9b86ce76c02aaee83352298 (diff) | |
| download | op-kernel-dev-15dd859cacf312f606f54502d1f66537a1e5c78c.zip op-kernel-dev-15dd859cacf312f606f54502d1f66537a1e5c78c.tar.gz | |
Merge commit 'v2.6.27-rc1' into x86/core
Conflicts:
include/asm-x86/dma-mapping.h
include/asm-x86/namei.h
include/asm-x86/uaccess.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/iommu-helper.c')
| -rw-r--r-- | lib/iommu-helper.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c index a3b8d4c..889ddce 100644 --- a/lib/iommu-helper.c +++ b/lib/iommu-helper.c @@ -80,3 +80,11 @@ void iommu_area_free(unsigned long *map, unsigned long start, unsigned int nr) } } EXPORT_SYMBOL(iommu_area_free); + +unsigned long iommu_num_pages(unsigned long addr, unsigned long len) +{ + unsigned long size = roundup((addr & ~PAGE_MASK) + len, PAGE_SIZE); + + return size >> PAGE_SHIFT; +} +EXPORT_SYMBOL(iommu_num_pages); |
