From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH] btrfs: use inode->i_sb to calculate fs_info
Date: Mon, 9 Feb 2026 14:11:37 -0500 [thread overview]
Message-ID: <djynzzkwdfzqq6rks5njvhjexmje2zoofffkx2qtectxlyv53f@r54cgbf5l2b3> (raw)
If overlay is used on top of btrfs, dentry->d_sb translates to overlay's
super block and fsid assignment will lead to a crash.
Use inode->i_sb to calculate btrfs_sb.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
---
include/trace/events/btrfs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 125bdc166bfe..94a197557382 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -772,7 +772,7 @@ TRACE_EVENT(btrfs_sync_file,
const struct dentry *dentry = file->f_path.dentry;
const struct inode *inode = d_inode(dentry);
- TP_fast_assign_fsid(btrfs_sb(file->f_path.dentry->d_sb));
+ TP_fast_assign_fsid(btrfs_sb(inode->i_sb));
__entry->ino = btrfs_ino(BTRFS_I(inode));
__entry->parent = btrfs_ino(BTRFS_I(d_inode(dentry->d_parent)));
__entry->datasync = datasync;
--
2.53.0
next reply other threads:[~2026-02-09 19:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-09 19:11 Goldwyn Rodrigues [this message]
2026-02-09 21:44 ` [PATCH] btrfs: use inode->i_sb to calculate fs_info Boris Burkov
2026-02-09 23:19 ` Qu Wenruo
2026-02-24 16:57 ` David Sterba
2026-02-24 17:01 ` Filipe Manana
2026-02-24 17:13 ` David Sterba
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