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| author |   NeilBrown <neilb@suse.com> | 2016-05-20 17:03:51 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-20 17:58:30 -0700 |
| commit | 78a9be0a0a3367b94af242632c525d22b26f1a87 (patch) | |
| tree | 132b1866b0801b636dd633f3dce7b12a170ea27c /fs/dax.c | |
| parent | radix-tree: make radix_tree_descend() more useful (diff) | |
| download | wireguard-linux-78a9be0a0a3367b94af242632c525d22b26f1a87.tar.xz wireguard-linux-78a9be0a0a3367b94af242632c525d22b26f1a87.zip | |
dax: move RADIX_DAX_ definitions to dax.c
These don't belong in radix-tree.h any more than PAGECACHE_TAG_* do.
Let's try to maintain the idea that radix-tree simply implements an
abstract data type.
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/dax.c')
| -rw-r--r-- | fs/dax.c | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -32,6 +32,15 @@ #include <linux/pfn_t.h> #include <linux/sizes.h> +#define RADIX_DAX_MASK 0xf +#define RADIX_DAX_SHIFT 4 +#define RADIX_DAX_PTE (0x4 | RADIX_TREE_EXCEPTIONAL_ENTRY) +#define RADIX_DAX_PMD (0x8 | RADIX_TREE_EXCEPTIONAL_ENTRY) +#define RADIX_DAX_TYPE(entry) ((unsigned long)entry & RADIX_DAX_MASK) +#define RADIX_DAX_SECTOR(entry) (((unsigned long)entry >> RADIX_DAX_SHIFT)) +#define RADIX_DAX_ENTRY(sector, pmd) ((void *)((unsigned long)sector << \ + RADIX_DAX_SHIFT | (pmd ? RADIX_DAX_PMD : RADIX_DAX_PTE))) + static long dax_map_atomic(struct block_device *bdev, struct blk_dax_ctl *dax) { struct request_queue *q = bdev->bd_queue; |