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authorRalf Baechle <ralf@linux-mips.org>1997-12-01 17:57:09 +0000
committerRalf Baechle <ralf@linux-mips.org>1997-12-01 17:57:09 +0000
commita62a0f262e0179df8c632f529c95abf54ef78332 (patch)
tree80e6a7a7d407d08e218332bb3fcccdaf9f28fcc1 /include/linux/mm.h
parentfd095d09f2d475dc2e8599b1b8bae1cd65e91685 (diff)
Part #2 merging back my changes ...
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index cab25f117..483596c29 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -304,9 +304,15 @@ extern void truncate_inode_pages(struct inode *, unsigned long);
#define GFP_NOBUFFER 0x04
#define GFP_NFS 0x05
+/* Flag - indicates that the buffer should be allocated uncached as for an
+ architecture where the caches don't snoop DMA access. This is a even
+ stricter requirement than GFP_DMA as GFP_DMA allocated buffers might be
+ writeback cacheable and not be suitable for use with devices like
+ networks cards which manipulate objects smaller than a cacheline. */
+#define GFP_UNCACHED 0x40
+
/* Flag - indicates that the buffer will be suitable for DMA. Ignored on some
platforms, used as appropriate on others */
-
#define GFP_DMA 0x80
#define GFP_LEVEL_MASK 0xf