linux-kernel - [PATCH v2 2/4] ext4: opt-in for IOP_MAY_FAST

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Message-ID: <20251106180103.923856-3-mjguzik@gmail.com>
Date: Thu,  6 Nov 2025 19:01:00 +0100
From: Mateusz Guzik <mjguzik@...il.com>
To: brauner@...nel.org
Cc: viro@...iv.linux.org.uk,
	jack@...e.cz,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org,
	tytso@....edu,
	torvalds@...ux-foundation.org,
	josef@...icpanda.com,
	linux-btrfs@...r.kernel.org,
	Mateusz Guzik <mjguzik@...il.com>
Subject: [PATCH v2 2/4] ext4: opt-in for IOP_MAY_FAST_EXEC

Signed-off-by: Mateusz Guzik <mjguzik@...il.com>
---
 fs/ext4/inode.c | 2 ++
 fs/ext4/namei.c | 1 +
 2 files changed, 3 insertions(+)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index eaf776cd4175..7d5369f66686 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5522,6 +5522,8 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino,
 	if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) && !ei->i_file_acl)
 		cache_no_acl(inode);
 
+	inode_enable_fast_may_exec(inode);
+
 	unlock_new_inode(inode);
 	return inode;
 
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 2cd36f59c9e3..870bee252e54 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3038,6 +3038,7 @@ static struct dentry *ext4_mkdir(struct mnt_idmap *idmap, struct inode *dir,
 	err = ext4_mark_inode_dirty(handle, dir);
 	if (err)
 		goto out_clear_inode;
+	inode_enable_fast_may_exec(inode);
 	d_instantiate_new(dentry, inode);
 	ext4_fc_track_create(handle, dentry);
 	if (IS_DIRSYNC(dir))
-- 
2.48.1