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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-04-04 12:53:28 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-05-10 22:21:44 +0900
commit1cb2d38cb3e59d58e8321a0592e84b5761afb063 (patch)
tree151e7ffccd72f786a3da511b0f23906961835a22 /fs/nilfs2/file.c
parenteaae0f37d83bed7ccd0c6d0f52de1de44f92aecc (diff)
downloadlinux-1cb2d38cb3e59d58e8321a0592e84b5761afb063.tar.bz2
nilfs2: get rid of private page allocator
Previously, nilfs was cloning pages for mmapped region to freeze their data and ensure consistency of checksum during writeback cycles. A private page allocator was used for this page cloning. But, we no longer need to do that since clear_page_dirty_for_io function sets up pte so that vm_ops->page_mkwrite function is called right before the mmapped pages are modified and nilfs_page_mkwrite function can safely wait for the pages to be written back to disk. So, this stops making a copy of mmapped pages during writeback, and eliminates the private page allocation and deallocation functions from nilfs. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/file.c')
-rw-r--r--fs/nilfs2/file.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c
index 397e73258631..d7eeca62febd 100644
--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -111,7 +111,6 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
nilfs_transaction_commit(inode->i_sb);
mapped:
- SetPageChecked(page);
wait_on_page_writeback(page);
return VM_FAULT_LOCKED;
}