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From: Mateusz Guzik <mjguzik@gmail.com>
To: brauner@kernel.org
Cc: viro@zeniv.linux.org.uk, jack@suse.cz,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-ext4@vger.kernel.org, tytso@mit.edu,
	torvalds@linux-foundation.org, josef@toxicpanda.com,
	linux-btrfs@vger.kernel.org, Mateusz Guzik <mjguzik@gmail.com>
Subject: [PATCH v2 4/4] tmpfs: opt-in for IOP_MAY_FAST_EXEC
Date: Thu,  6 Nov 2025 19:01:02 +0100	[thread overview]
Message-ID: <20251106180103.923856-5-mjguzik@gmail.com> (raw)
In-Reply-To: <20251106180103.923856-1-mjguzik@gmail.com>

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
---
 mm/shmem.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index c819cecf1ed9..265456bc6bf0 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3106,6 +3106,15 @@ static struct inode *__shmem_get_inode(struct mnt_idmap *idmap,
 	}
 
 	lockdep_annotate_inode_mutex_key(inode);
+
+	if (S_ISDIR(mode)) {
+		WARN_ON_ONCE(inode_state_read_once(inode) & I_NEW);
+		/* satisfy an assert inside */
+		inode_state_set_raw(inode, I_NEW);
+		inode_enable_fast_may_exec(inode);
+		inode_state_clear_raw(inode, I_NEW);
+	}
+
 	return inode;
 }
 
-- 
2.48.1


  parent reply	other threads:[~2025-11-06 18:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-06 18:00 [PATCH v2 0/4] permission check avoidance during lookup Mateusz Guzik
2025-11-06 18:00 ` [PATCH v2 1/4] fs: speed up path lookup with cheaper MAY_EXEC checks Mateusz Guzik
2025-11-06 22:45   ` Mateusz Guzik
2025-11-06 18:01 ` [PATCH v2 2/4] ext4: opt-in for IOP_MAY_FAST_EXEC Mateusz Guzik
2025-11-06 18:01 ` [PATCH v2 3/4] btrfs: " Mateusz Guzik
2025-11-06 18:01 ` Mateusz Guzik [this message]
2025-11-06 19:34 ` [PATCH v2 0/4] permission check avoidance during lookup Mateusz Guzik

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