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[v3,1/9] fs: Constify vma argument to vma_is_dax

Message ID 20200205125353.2760-2-thomas_os@shipmail.org
State New, archived
Headers show
Series Huge page-table entries for TTM | expand

Commit Message

Thomas Hellström (Intel) Feb. 5, 2020, 12:53 p.m. UTC
From: Thomas Hellstrom <thellstrom@vmware.com>

The vma argument is only dereferenced for reading.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
 include/linux/fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/linux/fs.h b/include/linux/fs.h
index 98e0349adb52..4f41fdbf402f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3367,7 +3367,7 @@  static inline bool io_is_direct(struct file *filp)
 	return (filp->f_flags & O_DIRECT) || IS_DAX(filp->f_mapping->host);
-static inline bool vma_is_dax(struct vm_area_struct *vma)
+static inline bool vma_is_dax(const struct vm_area_struct *vma)
 	return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host);