The patch titled
Subject: mm-move-mremap-from-file_operations-to-vm_operations_struct-v3
has been added to the -mm tree. Its filename is
mm-move-mremap-from-file_operations-to-vm_operations_struct-v3.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-move-mremap-from-file_operations-to-vm_operations_struct-v3.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-move-mremap-from-file_operations-to-vm_operations_struct-v3.patch
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------------------------------------------------------
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Subject: mm-move-mremap-from-file_operations-to-vm_operations_struct-v3
fs/aio.c can't be compiled if CONFIG_MMU=n, filemap_page_mkwrite() is
not defined in this case. Add ifdef(CONFIG_MMU) into aio_ring_vm_ops.
Note that this only fixes the build error, currently aio doesn't work
if !CONFIG_MMU anyway.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/aio.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN fs/aio.c~mm-move-mremap-from-file_operations-to-vm_operations_struct-v3 fs/aio.c
--- a/fs/aio.c~mm-move-mremap-from-file_operations-to-vm_operations_struct-v3
+++ a/fs/aio.c
@@ -338,9 +338,11 @@ static int aio_ring_mremap(struct vm_are
static const struct vm_operations_struct aio_ring_vm_ops = {
.mremap = aio_ring_mremap,
+#if IS_ENABLED(CONFIG_MMU)
.fault = filemap_fault,
.map_pages = filemap_map_pages,
.page_mkwrite = filemap_page_mkwrite,
+#endif
};
static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma)
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
signal-fix-information-leak-in-copy_siginfo_from_user32.patch
signal-fix-information-leak-in-copy_siginfo_to_user.patch
mremap-dont-leak-new_vma-if-f_op-mremap-fails.patch
mm-move-mremap-from-file_operations-to-vm_operations_struct.patch
mm-move-mremap-from-file_operations-to-vm_operations_struct-v3.patch
mremap-dont-do-mm_populatenew_addr-on-failure.patch
mremap-dont-do-uneccesary-checks-if-new_len-==-old_len.patch
mremap-simplify-the-overlap-check-in-mremap_to.patch
mm-introduce-vma_is_anonymousvma-helper.patch
mmap-fix-the-usage-of-vm_pgoff-in-special_mapping-paths.patch
mremap-fix-the-wrong-vma-vm_file-check-in-copy_vma.patch
linux-next.patch
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