Messages in this thread Patch in this message | | | Date | Fri, 24 Oct 2008 14:41:03 +0900 | Subject | [PATCH] x86: remove dead BIO_VMERGE_BOUNDARY definition | From | FUJITA Tomonori <> |
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The block layer dropped the virtual merge feature (b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY definition is meaningless now.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> --- arch/x86/include/asm/io.h | 2 -- arch/x86/include/asm/io_64.h | 2 -- arch/x86/kernel/pci-dma.c | 6 ------ 3 files changed, 0 insertions(+), 10 deletions(-)
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index 5618a10..2f13dbe 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -59,8 +59,6 @@ build_mmio_write(__writeq, "q", unsigned long, "r", ) #define writeq writeq #endif -extern int iommu_bio_merge; - #ifdef CONFIG_X86_32 # include "io_32.h" #else diff --git a/arch/x86/include/asm/io_64.h b/arch/x86/include/asm/io_64.h index fea325a..563c162 100644 --- a/arch/x86/include/asm/io_64.h +++ b/arch/x86/include/asm/io_64.h @@ -232,8 +232,6 @@ void memset_io(volatile void __iomem *a, int b, size_t c); #define flush_write_buffers() -#define BIO_VMERGE_BOUNDARY iommu_bio_merge - /* * Convert a virtual cached pointer to an uncached pointer */ diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 1972266..d851667 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -28,11 +28,6 @@ int no_iommu __read_mostly; /* Set this to 1 if there is a HW IOMMU in the system */ int iommu_detected __read_mostly = 0; -/* This tells the BIO block layer to assume merging. Default to off - because we cannot guarantee merging later. */ -int iommu_bio_merge __read_mostly = 0; -EXPORT_SYMBOL(iommu_bio_merge); - dma_addr_t bad_dma_address __read_mostly = 0; EXPORT_SYMBOL(bad_dma_address); @@ -186,7 +181,6 @@ static __init int iommu_setup(char *p) } if (!strncmp(p, "biomerge", 8)) { - iommu_bio_merge = 4096; iommu_merge = 1; force_iommu = 1; } -- 1.5.4.2
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