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| author | Jan Kara <jack@suse.cz> | 2016-12-14 15:07:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 16:04:09 -0800 |
| commit | cae1240257d9ba4b40eb240124c530de8ee349bc (patch) | |
| tree | 8655c822aa48bb1dd03eb229c9e3010a7218006c /mm | |
| parent | a19e25536ed3a20845f642ce531e10c27fb2add5 (diff) | |
| download | linux-cae1240257d9ba4b40eb240124c530de8ee349bc.tar.gz linux-cae1240257d9ba4b40eb240124c530de8ee349bc.tar.bz2 linux-cae1240257d9ba4b40eb240124c530de8ee349bc.zip | |
mm: export follow_pte()
DAX will need to implement its own version of page_check_address(). To
avoid duplicating page table walking code, export follow_pte() which
does what we need.
Link: http://lkml.kernel.org/r/1479460644-25076-18-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c index 8b7f0656a921..edd899d0decb 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3817,8 +3817,8 @@ out: return -EINVAL; } -static inline int follow_pte(struct mm_struct *mm, unsigned long address, - pte_t **ptepp, spinlock_t **ptlp) +int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp, + spinlock_t **ptlp) { int res; |