Thread (31 messages) 31 messages, 4 authors, 2021-07-14
STALE1806d
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[PATCH 13/24] btrfs/inode: allow idmapped setattr iop

From: Christian Brauner <brauner@kernel.org>
Date: 2021-07-13 11:16:38
Also in: linux-fsdevel
Subsystem: btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers: Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds

From: Christian Brauner <redacted>

Enable btrfs_setattr() to handle idmapped mounts. This is just a matter of
passing down the mount's userns.

Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: David Sterba <dsterba@suse.com>
Cc: linux-btrfs@vger.kernel.org
Signed-off-by: Christian Brauner <redacted>
---
 fs/btrfs/inode.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a51545b351c8..8a80ef810703 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5253,7 +5253,7 @@ static int btrfs_setattr(struct user_namespace *mnt_userns, struct dentry *dentr
 	if (btrfs_root_readonly(root))
 		return -EROFS;
 
-	err = setattr_prepare(&init_user_ns, dentry, attr);
+	err = setattr_prepare(mnt_userns, dentry, attr);
 	if (err)
 		return err;
 
@@ -5264,12 +5264,12 @@ static int btrfs_setattr(struct user_namespace *mnt_userns, struct dentry *dentr
 	}
 
 	if (attr->ia_valid) {
-		setattr_copy(&init_user_ns, inode, attr);
+		setattr_copy(mnt_userns, inode, attr);
 		inode_inc_iversion(inode);
 		err = btrfs_dirty_inode(inode);
 
 		if (!err && attr->ia_valid & ATTR_MODE)
-			err = posix_acl_chmod(&init_user_ns, inode,
+			err = posix_acl_chmod(mnt_userns, inode,
 					      inode->i_mode);
 	}
 
-- 
2.30.2
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