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authorThomas Hellstrom (VMware) <thomas_os@shipmail.org>2020-03-24 20:46:48 +0300
committerThomas Hellstrom (VMware) <thomas_os@shipmail.org>2020-03-24 20:46:48 +0300
commitf05a3849f6449f67843113778bf56e02f2b4ddf8 (patch)
tree042f089ca336de00e54640901b8f467d0eaff528 /include/linux/fs.h
parentcb7adfd6ad12a11902ebe374bec7fd4efa2cec1c (diff)
downloadlinux-f05a3849f6449f67843113778bf56e02f2b4ddf8.tar.xz
fs: Constify vma argument to vma_is_dax
The function is used by upcoming vma_is_special_huge() with which we want to use a const vma argument. Since for vma_is_dax() the vma argument is only dereferenced for reading, constify it. 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 (VMware) <thomas_os@shipmail.org> Reviewed-by: Roland Scheidegger <sroland@vmware.com> Acked-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3cd4fe6b845e..2b38ce5b73ad 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3391,7 +3391,7 @@ 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);
}