From: Christian Brauner <brauner@kernel.org>
Date: Tue, 4 Nov 2025 12:12:30 +0000 (+0100)
Subject: fs: add super_write_guard
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8e4d576ed3ff917eda65b989ba56b02d9a3894f9;p=thirdparty%2Flinux.git

fs: add super_write_guard

Link: https://patch.msgid.link/20251104-work-guards-v1-1-5108ac78a171@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
---

diff --git a/include/linux/fs/super.h b/include/linux/fs/super.h
index c0d22b12c1c9..b874105743b3 100644
--- a/include/linux/fs/super.h
+++ b/include/linux/fs/super.h
@@ -125,6 +125,11 @@ static inline void sb_start_write(struct super_block *sb)
 	__sb_start_write(sb, SB_FREEZE_WRITE);
 }
 
+DEFINE_GUARD(super_write,
+	     struct super_block *,
+	     sb_start_write(_T),
+	     sb_end_write(_T))
+
 static inline bool sb_start_write_trylock(struct super_block *sb)
 {
 	return __sb_start_write_trylock(sb, SB_FREEZE_WRITE);