From: "Thomas Hellström (VMware)" <thomas_os@shipmail.org>
To: linux-mm@kvack.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Cc: pv-drivers@vmware.com, linux-graphics-maintainer@vmware.com,
"Thomas Hellstrom" <thellstrom@vmware.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Michal Hocko" <mhocko@suse.com>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"Ralph Campbell" <rcampbell@nvidia.com>,
"Jérôme Glisse" <jglisse@redhat.com>,
"Christian König" <christian.koenig@amd.com>,
"Dan Williams" <dan.j.williams@intel.com>,
"Roland Scheidegger" <sroland@vmware.com>
Subject: [PATCH v6 1/9] fs: Constify vma argument to vma_is_dax
Date: Wed, 4 Mar 2020 11:28:32 +0100 [thread overview]
Message-ID: <20200304102840.2801-2-thomas_os@shipmail.org> (raw)
In-Reply-To: <20200304102840.2801-1-thomas_os@shipmail.org>
From: Thomas Hellstrom <thellstrom@vmware.com>
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 <thellstrom@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Acked-by: Christian König <christian.koenig@amd.com>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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);
}
--
2.21.1
WARNING: multiple messages have this Message-ID (diff)
From: "Thomas Hellström (VMware)" <thomas_os@shipmail.org>
To: linux-mm@kvack.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Cc: "Thomas Hellstrom" <thellstrom@vmware.com>,
"Michal Hocko" <mhocko@suse.com>,
pv-drivers@vmware.com, "Roland Scheidegger" <sroland@vmware.com>,
"Dan Williams" <dan.j.williams@intel.com>,
"Ralph Campbell" <rcampbell@nvidia.com>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
"Jérôme Glisse" <jglisse@redhat.com>,
linux-graphics-maintainer@vmware.com,
"Andrew Morton" <akpm@linux-foundation.org>,
"Christian König" <christian.koenig@amd.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCH v6 1/9] fs: Constify vma argument to vma_is_dax
Date: Wed, 4 Mar 2020 11:28:32 +0100 [thread overview]
Message-ID: <20200304102840.2801-2-thomas_os@shipmail.org> (raw)
In-Reply-To: <20200304102840.2801-1-thomas_os@shipmail.org>
From: Thomas Hellstrom <thellstrom@vmware.com>
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 <thellstrom@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Acked-by: Christian König <christian.koenig@amd.com>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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);
}
--
2.21.1
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next prev parent reply other threads:[~2020-03-04 10:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-04 10:28 [PATCH v6 0/9] Huge page-table entries for TTM Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware) [this message]
2020-03-04 10:28 ` [PATCH v6 1/9] fs: Constify vma argument to vma_is_dax Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 2/9] mm: Introduce vma_is_special_huge Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 3/9] mm: Split huge pages on write-notify or COW Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 4/9] mm: Add vmf_insert_pfn_xxx_prot() for huge page-table entries Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 5/9] drm/ttm, drm/vmwgfx: Support huge TTM pagefaults Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 6/9] drm/vmwgfx: Support huge page faults Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 7/9] drm: Add a drm_get_unmapped_area() helper Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 8/9] drm/vmwgfx: Introduce a huge page aligning TTM range manager Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-04 10:28 ` [PATCH v6 9/9] drm/vmwgfx: Hook up the helpers to align buffer objects Thomas Hellström (VMware)
2020-03-04 10:28 ` Thomas Hellström (VMware)
2020-03-16 12:32 ` Ack to merge through DRM? WAS [PATCH v6 0/9] Huge page-table entries for TTM Thomas Hellström (VMware)
2020-03-16 12:32 ` Thomas Hellström (VMware)
2020-03-18 23:27 ` Andrew Morton
2020-03-18 23:27 ` Andrew Morton
2020-03-19 10:20 ` Thomas Hellström (VMware)
2020-03-19 10:20 ` Thomas Hellström (VMware)
2020-03-21 1:58 ` Andrew Morton
2020-03-21 1:58 ` Andrew Morton
2020-03-24 10:03 ` Separate pull request? WAS: " Thomas Hellström (VMware)
2020-03-24 10:31 ` Koenig, Christian
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