linux-kernel - [PATCH v2] proc: remove mark_inode

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Date:   Tue, 31 Jan 2023 23:08:40 +0800
From:   Chao Yu <chao@...nel.org>
To:     akpm@...ux-foundation.org, adobriyan@...il.com
Cc:     viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, Chao Yu <chao@...nel.org>
Subject: [PATCH v2] proc: remove mark_inode_dirty() in .setattr()

procfs' .setattr() has updated i_uid, i_gid and i_mode into proc
dirent, we don't need to call mark_inode_dirty() for delayed
update, remove it.

Signed-off-by: Chao Yu <chao@...nel.org>
---
v2:
- remove mark_inode_dirty() from proc_setattr() and proc_sys_setattr()
as well.
 fs/proc/base.c        | 1 -
 fs/proc/generic.c     | 1 -
 fs/proc/proc_sysctl.c | 1 -
 3 files changed, 3 deletions(-)

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 9e479d7d202b..16236fe9b9fe 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -699,7 +699,6 @@ int proc_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
 		return error;
 
 	setattr_copy(&init_user_ns, inode, attr);
-	mark_inode_dirty(inode);
 	return 0;
 }
 
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 5f52f20d5ed1..f547e9593a77 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -127,7 +127,6 @@ static int proc_notify_change(struct user_namespace *mnt_userns,
 		return error;
 
 	setattr_copy(&init_user_ns, inode, iattr);
-	mark_inode_dirty(inode);
 
 	proc_set_user(de, inode->i_uid, inode->i_gid);
 	de->mode = inode->i_mode;
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 48f2d60bd78a..4e71d18e610e 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -841,7 +841,6 @@ static int proc_sys_setattr(struct user_namespace *mnt_userns,
 		return error;
 
 	setattr_copy(&init_user_ns, inode, attr);
-	mark_inode_dirty(inode);
 	return 0;
 }
 
-- 
2.36.1