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Commit c2ed3880 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Eric Van Hensbergen
Browse files

fs/9p: Use write_inode for data sync on server 



Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent f2eda2c6

fs/9p/vfs_super.c

+47 −0
Original line number Diff line number Diff line
@@ -307,6 +307,51 @@ static int v9fs_drop_inode(struct inode *inode) 
	return 1;

}



static int v9fs_write_inode(struct inode *inode,

			    struct writeback_control *wbc)

{

	int ret;

	struct p9_wstat wstat;

	struct v9fs_inode *v9inode;

	/*

	 * send an fsync request to server irrespective of

	 * wbc->sync_mode.

	 */

	P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);

	v9inode = V9FS_I(inode);

	if (!v9inode->writeback_fid)

		return 0;

	v9fs_blank_wstat(&wstat);



	ret = p9_client_wstat(v9inode->writeback_fid, &wstat);

	if (ret < 0) {

		__mark_inode_dirty(inode, I_DIRTY_DATASYNC);

		return ret;

	}

	return 0;

}



static int v9fs_write_inode_dotl(struct inode *inode,

				 struct writeback_control *wbc)

{

	int ret;

	struct v9fs_inode *v9inode;

	/*

	 * send an fsync request to server irrespective of

	 * wbc->sync_mode.

	 */

	P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);

	v9inode = V9FS_I(inode);

	if (!v9inode->writeback_fid)

		return 0;

	ret = p9_client_fsync(v9inode->writeback_fid, 0);

	if (ret < 0) {

		__mark_inode_dirty(inode, I_DIRTY_DATASYNC);

		return ret;

	}

	return 0;

}



static const struct super_operations v9fs_super_ops = {

	.alloc_inode = v9fs_alloc_inode,

	.destroy_inode = v9fs_destroy_inode,
@@ -314,6 +359,7 @@ static const struct super_operations v9fs_super_ops = { 
	.evict_inode = v9fs_evict_inode,

	.show_options = generic_show_options,

	.umount_begin = v9fs_umount_begin,

	.write_inode = v9fs_write_inode,

};



static const struct super_operations v9fs_super_ops_dotl = {
@@ -325,6 +371,7 @@ static const struct super_operations v9fs_super_ops_dotl = { 
	.evict_inode = v9fs_evict_inode,

	.show_options = generic_show_options,

	.umount_begin = v9fs_umount_begin,

	.write_inode = v9fs_write_inode_dotl,

};



struct file_system_type v9fs_fs_type = {