linux-kernel - [PATCH 04/17] orangefs: update attributes rather than relying on server

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Date:   Mon, 17 Sep 2018 20:10:41 +0000
From:   Martin Brandenburg <martin@...ibond.com>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        devel@...ts.orangefs.org
Cc:     Martin Brandenburg <martin@...ibond.com>
Subject: [PATCH 04/17] orangefs: update attributes rather than relying on server

This should be a no-op now, but once inode writeback works, it'll be
necessary to have the correct attribute in the dirty inode.

Previously the attribute fetch timeout was marked invalid and the server
provided the updated attribute.  When the inode is dirty, the server
cannot be consulted since it does not yet know the pending setattr.

Signed-off-by: Martin Brandenburg <martin@...ibond.com>
---
 fs/orangefs/file.c  | 10 ++--------
 fs/orangefs/namei.c |  7 ++++++-
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 3ab6e5126899..aec17635a50f 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -327,14 +327,8 @@ static ssize_t do_readv_writev(enum ORANGEFS_io_type type, struct file *file,
 			file_accessed(file);
 		} else {
 			file_update_time(file);
-			/*
-			 * Must invalidate to ensure write loop doesn't
-			 * prevent kernel from reading updated
-			 * attribute.  Size probably changed because of
-			 * the write, and other clients could update
-			 * any other attribute.
-			 */
-			orangefs_inode->getattr_time = jiffies - 1;
+			if (*offset > i_size_read(inode))
+				i_size_write(inode, *offset);
 		}
 	}
 
diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c
index 46b5f06b7e4c..7b82fc09291c 100644
--- a/fs/orangefs/namei.c
+++ b/fs/orangefs/namei.c
@@ -383,6 +383,7 @@ static int orangefs_rename(struct inode *old_dir,
 			unsigned int flags)
 {
 	struct orangefs_kernel_op_s *new_op;
+	struct iattr iattr;
 	int ret;
 
 	if (flags)
@@ -392,7 +393,11 @@ static int orangefs_rename(struct inode *old_dir,
 		     "orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
 		     old_dentry, new_dentry, d_count(new_dentry));
 
-	ORANGEFS_I(new_dentry->d_parent->d_inode)->getattr_time = jiffies - 1;
+	new_dir->i_mtime = new_dir->i_ctime = current_time(new_dir);
+	memset(&iattr, 0, sizeof iattr);
+	iattr.ia_valid |= ATTR_MTIME;
+	orangefs_inode_setattr(new_dir, &iattr);
+	mark_inode_dirty_sync(new_dir);
 
 	new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
 	if (!new_op)
-- 
2.19.0