Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754099Ab3JJNKS (ORCPT ); Thu, 10 Oct 2013 09:10:18 -0400 Received: from relay.parallels.com ([195.214.232.42]:48040 "EHLO relay.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752343Ab3JJNKQ (ORCPT ); Thu, 10 Oct 2013 09:10:16 -0400 Subject: [PATCH 01/11] fuse: Linking file to inode helper To: miklos@szeredi.hu From: Maxim Patlasov Cc: dev@parallels.com, xemul@parallels.com, fuse-devel@lists.sourceforge.net, bfoster@redhat.com, linux-kernel@vger.kernel.org, jbottomley@parallels.com, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, fengguang.wu@intel.com, devel@openvz.org Date: Thu, 10 Oct 2013 17:10:04 +0400 Message-ID: <20131010130952.10089.47203.stgit@dhcp-10-30-17-2.sw.ru> In-Reply-To: <20131010130718.10089.6736.stgit@dhcp-10-30-17-2.sw.ru> References: <20131010130718.10089.6736.stgit@dhcp-10-30-17-2.sw.ru> User-Agent: StGit/0.16 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2328 Lines: 68 From: Pavel Emelyanov When writeback is ON every writeable file should be in per-inode write list, not only mmap-ed ones. Thus introduce a helper for this linkage. Signed-off-by: Maxim Patlasov Signed-off-by: Pavel Emelyanov --- fs/fuse/file.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 3f219fd..5e49c8f 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -171,6 +171,22 @@ int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file, } EXPORT_SYMBOL_GPL(fuse_do_open); +static void fuse_link_write_file(struct file *file) +{ + struct inode *inode = file_inode(file); + struct fuse_conn *fc = get_fuse_conn(inode); + struct fuse_inode *fi = get_fuse_inode(inode); + struct fuse_file *ff = file->private_data; + /* + * file may be written through mmap, so chain it onto the + * inodes's write_file list + */ + spin_lock(&fc->lock); + if (list_empty(&ff->write_entry)) + list_add(&ff->write_entry, &fi->write_files); + spin_unlock(&fc->lock); +} + void fuse_finish_open(struct inode *inode, struct file *file) { struct fuse_file *ff = file->private_data; @@ -1929,20 +1945,9 @@ static const struct vm_operations_struct fuse_file_vm_ops = { static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma) { - if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE)) { - struct inode *inode = file_inode(file); - struct fuse_conn *fc = get_fuse_conn(inode); - struct fuse_inode *fi = get_fuse_inode(inode); - struct fuse_file *ff = file->private_data; - /* - * file may be written through mmap, so chain it onto the - * inodes's write_file list - */ - spin_lock(&fc->lock); - if (list_empty(&ff->write_entry)) - list_add(&ff->write_entry, &fi->write_files); - spin_unlock(&fc->lock); - } + if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE)) + fuse_link_write_file(file); + file_accessed(file); vma->vm_ops = &fuse_file_vm_ops; return 0; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/