diff options
author | Konstantin Khlebnikov <khlebnikov@openvz.org> | 2012-10-08 19:28:46 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 03:22:17 -0400 |
commit | 0b173bc4daa8f8ec03a85abf5e47b23502ff80af (patch) | |
tree | 173d0523555e02a077e0af4563bd4cadea46cb23 /fs/nilfs2 | |
parent | 4b6e1e37026ec7dae9b23d78ffcebdd5ddb1bfa1 (diff) |
mm: kill vma flag VM_CAN_NONLINEAR
Move actual pte filling for non-linear file mappings into the new special
vma operation: ->remap_pages().
Filesystems must implement this method to get non-linear mapping support,
if it uses filemap_fault() then generic_file_remap_pages() can be used.
Now device drivers can implement this method and obtain nonlinear vma support.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com> #arch/tile
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Venkatesh Pallipadi <venki@google.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r-- | fs/nilfs2/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c index 5b387a4c293e..16f35f7423c5 100644 --- a/fs/nilfs2/file.c +++ b/fs/nilfs2/file.c | |||
@@ -135,13 +135,13 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) | |||
135 | static const struct vm_operations_struct nilfs_file_vm_ops = { | 135 | static const struct vm_operations_struct nilfs_file_vm_ops = { |
136 | .fault = filemap_fault, | 136 | .fault = filemap_fault, |
137 | .page_mkwrite = nilfs_page_mkwrite, | 137 | .page_mkwrite = nilfs_page_mkwrite, |
138 | .remap_pages = generic_file_remap_pages, | ||
138 | }; | 139 | }; |
139 | 140 | ||
140 | static int nilfs_file_mmap(struct file *file, struct vm_area_struct *vma) | 141 | static int nilfs_file_mmap(struct file *file, struct vm_area_struct *vma) |
141 | { | 142 | { |
142 | file_accessed(file); | 143 | file_accessed(file); |
143 | vma->vm_ops = &nilfs_file_vm_ops; | 144 | vma->vm_ops = &nilfs_file_vm_ops; |
144 | vma->vm_flags |= VM_CAN_NONLINEAR; | ||
145 | return 0; | 145 | return 0; |
146 | } | 146 | } |
147 | 147 | ||