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authorJan Kara <jack@suse.cz>2023-11-01 18:27:39 +0100
committerChristian Brauner <brauner@kernel.org>2023-11-18 14:59:24 +0100
commit5a8e94c0158f43341334e69a74b6dfa317ba3d2e (patch)
tree9b70dcbf40d3b7626749c2d0b5a1e449e1fdcafb /fs/nilfs2
parentfs: streamline thaw_super_locked (diff)
downloadlinux-5a8e94c0158f43341334e69a74b6dfa317ba3d2e.tar.xz
linux-5a8e94c0158f43341334e69a74b6dfa317ba3d2e.zip
nilfs2: simplify device handling
We removed all codepaths where s_umount is taken beneath open_mutex and bd_holder_lock so don't make things more complicated than they need to be and hold s_umount over block device opening. CC: Ryusuke Konishi <konishi.ryusuke@gmail.com> CC: <linux-nilfs@vger.kernel.org> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20231101172739.8676-1-jack@suse.cz Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r--fs/nilfs2/super.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index a5d1fa4e7552..df8674173b22 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -1314,15 +1314,7 @@ nilfs_mount(struct file_system_type *fs_type, int flags,
return ERR_CAST(s);
if (!s->s_root) {
- /*
- * We drop s_umount here because we need to open the bdev and
- * bdev->open_mutex ranks above s_umount (blkdev_put() ->
- * __invalidate_device()). It is safe because we have active sb
- * reference and SB_BORN is not set yet.
- */
- up_write(&s->s_umount);
err = setup_bdev_super(s, flags, NULL);
- down_write(&s->s_umount);
if (!err)
err = nilfs_fill_super(s, data,
flags & SB_SILENT ? 1 : 0);