From: Kent Overstreet <kent.overstreet@linux.dev>
To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-btrfs@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-ext4@vger.kernel.org
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Subject: [PATCH 3/6] fat: Hook up sb->s_uuid
Date: Mon, 5 Feb 2024 15:05:14 -0500 [thread overview]
Message-ID: <20240205200529.546646-4-kent.overstreet@linux.dev> (raw)
In-Reply-To: <20240205200529.546646-1-kent.overstreet@linux.dev>
Now that we have a standard ioctl for querying the filesystem UUID,
initialize sb->s_uuid so that it works.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---
fs/fat/inode.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 1fac3dabf130..a3d3478442d1 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1762,6 +1762,10 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
else /* fat 16 or 12 */
sbi->vol_id = bpb.fat16_vol_id;
+ __le32 vol_id_le = cpu_to_le32(sbi->vol_id);
+ memcpy(&sb->s_uuid, &vol_id_le, sizeof(vol_id_le));
+ sb->s_uuid_len = sizeof(vol_id_le);
+
sbi->dir_per_block = sb->s_blocksize / sizeof(struct msdos_dir_entry);
sbi->dir_per_block_bits = ffs(sbi->dir_per_block) - 1;
--
2.43.0
next prev parent reply other threads:[~2024-02-05 20:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-05 20:05 [PATCH 0/6] filesystem visibility ioctls Kent Overstreet
2024-02-05 20:05 ` [PATCH 1/6] fs: super_block->s_uuid_len Kent Overstreet
2024-02-05 21:58 ` Dave Chinner
2024-02-05 22:56 ` Kent Overstreet
2024-02-05 20:05 ` [PATCH 2/6] fs: FS_IOC_GETUUID Kent Overstreet
2024-02-05 22:17 ` Dave Chinner
2024-02-05 22:49 ` Kent Overstreet
2024-02-05 23:59 ` Darrick J. Wong
2024-02-06 8:24 ` Amir Goldstein
2024-02-06 9:00 ` Kent Overstreet
2024-02-05 20:05 ` Kent Overstreet [this message]
2024-02-05 20:05 ` [PATCH 4/6] fs: FS_IOC_GETSYSFSNAME Kent Overstreet
2024-02-05 22:27 ` Darrick J. Wong
2024-02-05 22:43 ` Kent Overstreet
2024-02-06 1:39 ` David Sterba
2024-02-06 4:20 ` Randy Dunlap
2024-02-06 4:33 ` Kent Overstreet
2024-02-06 5:08 ` Darrick J. Wong
2024-02-06 5:13 ` Kent Overstreet
2024-02-05 20:05 ` [PATCH 5/6] xfs: add support for FS_IOC_GETSYSFSNAME Kent Overstreet
2024-02-05 20:05 ` [PATCH 6/6] bcachefs: " Kent Overstreet
2024-02-06 16:22 ` [PATCH 0/6] filesystem visibility ioctls Christian Brauner
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