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| author | Matthew Wilcox <willy@linux.intel.com> | 2015-09-08 14:58:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-08 15:35:28 -0700 |
| commit | c94c2acf84dc16cf4b989bb0bc849785b7ff52f5 (patch) | |
| tree | f2f7f9e429f1955bbde43e975d97d20a9d06f50c /fs/block_dev.c | |
| parent | e1b9996b85ba3ff143ded04523cd015762d20f03 (diff) | |
| download | lwn-c94c2acf84dc16cf4b989bb0bc849785b7ff52f5.tar.gz lwn-c94c2acf84dc16cf4b989bb0bc849785b7ff52f5.zip | |
dax: move DAX-related functions to a new header
In order to handle the !CONFIG_TRANSPARENT_HUGEPAGES case, we need to
return VM_FAULT_FALLBACK from the inlined dax_pmd_fault(), which is
defined in linux/mm.h. Given that we don't want to include <linux/mm.h>
in <linux/fs.h>, the easiest solution is to move the DAX-related
functions to a new header, <linux/dax.h>. We could also have moved
VM_FAULT_* definitions to a new header, or a different header that isn't
quite such a boil-the-ocean header as <linux/mm.h>, but this felt like
the best option.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 33b813e04f79..28cc525b8d59 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -28,6 +28,7 @@ #include <linux/namei.h> #include <linux/log2.h> #include <linux/cleancache.h> +#include <linux/dax.h> #include <asm/uaccess.h> #include "internal.h" |