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authorDave Jiang <dave.jiang@intel.com>2017-02-23 02:40:03 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-23 03:41:26 +0300
commitd8a849e1bc123790bbbf1facba94452a3aef5736 (patch)
treea336efef8f1f4bb69f3366e45fc5400a2c48573d /include/linux/dax.h
parent27a7ffaccd915675c88045ba83493804a0267ab7 (diff)
downloadlinux-d8a849e1bc123790bbbf1facba94452a3aef5736.tar.xz
mm, dax: make pmd_fault() and friends be the same as fault()
Instead of passing in multiple parameters in the pmd_fault() handler, a vmf can be passed in just like a fault() handler. This will simplify code and remove the need for the actual pmd fault handlers to allocate a vmf. Related functions are also modified to do the same. [dave.jiang@intel.com: fix issue with xfs_tests stall when DAX option is off] Link: http://lkml.kernel.org/r/148469861071.195597.3619476895250028518.stgit@djiang5-desk3.ch.intel.com Link: http://lkml.kernel.org/r/1484085142-2297-7-git-send-email-ross.zwisler@linux.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Dave Chinner <david@fromorbit.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/dax.h')
-rw-r--r--include/linux/dax.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 24ad71173995..a829fee2b42b 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -71,16 +71,15 @@ static inline unsigned int dax_radix_order(void *entry)
return PMD_SHIFT - PAGE_SHIFT;
return 0;
}
-int dax_iomap_pmd_fault(struct vm_area_struct *vma, unsigned long address,
- pmd_t *pmd, unsigned int flags, struct iomap_ops *ops);
+int dax_iomap_pmd_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
+ struct iomap_ops *ops);
#else
static inline unsigned int dax_radix_order(void *entry)
{
return 0;
}
static inline int dax_iomap_pmd_fault(struct vm_area_struct *vma,
- unsigned long address, pmd_t *pmd, unsigned int flags,
- struct iomap_ops *ops)
+ struct vm_fault *vmf, struct iomap_ops *ops)
{
return VM_FAULT_FALLBACK;
}