linux-ext4 - [PATCH v5 02/10] ext4: don't explicit update times in ext4

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Message-ID: <20241220011637.1157197-3-yi.zhang@huaweicloud.com>
Date: Fri, 20 Dec 2024 09:16:29 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: linux-ext4@...r.kernel.org
Cc: linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	tytso@....edu,
	adilger.kernel@...ger.ca,
	jack@...e.cz,
	ojaswin@...ux.ibm.com,
	yi.zhang@...wei.com,
	yi.zhang@...weicloud.com,
	chengzhihao1@...wei.com,
	yukuai3@...wei.com,
	yangerkun@...wei.com
Subject: [PATCH v5 02/10] ext4: don't explicit update times in ext4_fallocate()

From: Zhang Yi <yi.zhang@...wei.com>

After commit 'ad5cd4f4ee4d ("ext4: fix fallocate to use file_modified to
update permissions consistently"), we can update mtime and ctime
appropriately through file_modified() when doing zero range, collapse
rage, insert range and punch hole, hence there is no need to explicit
update times in those paths, just drop them.

Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
Reviewed-by: Jan Kara <jack@...e.cz>
Reviewed-by: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
---
 fs/ext4/extents.c | 5 -----
 fs/ext4/inode.c   | 1 -
 2 files changed, 6 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 8dc6b4271b15..7fb38aab241d 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4674,8 +4674,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 			goto out_mutex;
 		}
 
-		inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
-
 		ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
 					     flags);
 		filemap_invalidate_unlock(mapping);
@@ -4699,7 +4697,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 		goto out_mutex;
 	}
 
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	if (new_size)
 		ext4_update_inode_size(inode, new_size);
 	ret = ext4_mark_inode_dirty(handle, inode);
@@ -5435,7 +5432,6 @@ static int ext4_collapse_range(struct file *file, loff_t offset, loff_t len)
 	up_write(&EXT4_I(inode)->i_data_sem);
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	ret = ext4_mark_inode_dirty(handle, inode);
 	ext4_update_inode_fsync_trans(handle, inode, 1);
 
@@ -5545,7 +5541,6 @@ static int ext4_insert_range(struct file *file, loff_t offset, loff_t len)
 	/* Expand file to avoid data loss if there is error while shifting */
 	inode->i_size += len;
 	EXT4_I(inode)->i_disksize += len;
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	ret = ext4_mark_inode_dirty(handle, inode);
 	if (ret)
 		goto out_stop;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 1458b21bbb5e..b94cbdb82692 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4139,7 +4139,6 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
 
-	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
 	ret2 = ext4_mark_inode_dirty(handle, inode);
 	if (unlikely(ret2))
 		ret = ret2;
-- 
2.46.1