[PATCH 07/17] orangefs: let setattr write to cached inode

From: Martin Brandenburg
Date: Mon Sep 17 2018 - 16:12:39 EST


This is a fairly big change, but ultimately it's not a lot of code.

Implement write_inode and then avoid the call to orangefs_inode_setattr
within orangefs_setattr.

Signed-off-by: Martin Brandenburg <martin@xxxxxxxxxxxx>
---
fs/orangefs/inode.c | 11 +++--------
fs/orangefs/super.c | 16 ++++++++++++++++
2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index ec3996a61f92..b16b11294573 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -207,8 +207,8 @@ static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
*/
int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
{
- int ret = -EINVAL;
struct inode *inode = dentry->d_inode;
+ int ret;

gossip_debug(GOSSIP_INODE_DEBUG,
"%s: called on %pd\n",
@@ -228,16 +228,11 @@ int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
setattr_copy(inode, iattr);
mark_inode_dirty(inode);

- ret = orangefs_inode_setattr(inode, iattr);
- gossip_debug(GOSSIP_INODE_DEBUG,
- "%s: orangefs_inode_setattr returned %d\n",
- __func__,
- ret);
-
- if (!ret && (iattr->ia_valid & ATTR_MODE))
+ if (iattr->ia_valid & ATTR_MODE)
/* change mod on a file that has ACLs */
ret = posix_acl_chmod(inode, inode->i_mode);

+ ret = 0;
out:
gossip_debug(GOSSIP_INODE_DEBUG, "%s: ret:%d:\n", __func__, ret);
return ret;
diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c
index 61bec955b285..788869c8233b 100644
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -151,6 +151,21 @@ static void orangefs_destroy_inode(struct inode *inode)
call_rcu(&inode->i_rcu, orangefs_i_callback);
}

+int orangefs_write_inode(struct inode *inode, struct writeback_control *wbc)
+{
+ struct iattr iattr;
+ gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_write_inode\n");
+ iattr.ia_valid = ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_ATIME |
+ ATTR_ATIME_SET | ATTR_MTIME | ATTR_MTIME_SET | ATTR_CTIME;
+ iattr.ia_mode = inode->i_mode;
+ iattr.ia_uid = inode->i_uid;
+ iattr.ia_gid = inode->i_gid;
+ iattr.ia_atime = inode->i_atime;
+ iattr.ia_mtime = inode->i_mtime;
+ iattr.ia_ctime = inode->i_ctime;
+ return orangefs_inode_setattr(inode, &iattr);
+}
+
/*
* NOTE: information filled in here is typically reflected in the
* output of the system command 'df'
@@ -309,6 +324,7 @@ void fsid_key_table_finalize(void)
static const struct super_operations orangefs_s_ops = {
.alloc_inode = orangefs_alloc_inode,
.destroy_inode = orangefs_destroy_inode,
+ .write_inode = orangefs_write_inode,
.drop_inode = generic_delete_inode,
.statfs = orangefs_statfs,
.remount_fs = orangefs_remount_fs,
--
2.19.0