diff mbox series

[v4,12/15] fs/fuse: handle idmappings properly in ->write_iter

Message ID 20240903151626.264609-13-aleksandr.mikhalitsyn@canonical.com (mailing list archive)
State New
Headers show
Series fuse: basic support for idmapped mounts | expand

Commit Message

Aleksandr Mikhalitsyn Sept. 3, 2024, 3:16 p.m. UTC 
Cc: Christian Brauner <brauner@kernel.org>
Cc: Seth Forshee <sforshee@kernel.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Bernd Schubert <bschubert@ddn.com>
Cc: <linux-fsdevel@vger.kernel.org>
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
---
v4:
	- this commit added
---
 fs/fuse/file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 06ff4742ab08..dffc476f0bf2 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1398,6 +1398,7 @@  static void fuse_dio_unlock(struct kiocb *iocb, bool exclusive)
 static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
+	struct mnt_idmap *idmap = file_mnt_idmap(file);
 	struct address_space *mapping = file->f_mapping;
 	ssize_t written = 0;
 	struct inode *inode = mapping->host;
@@ -1412,7 +1413,7 @@  static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
 			return err;
 
 		if (fc->handle_killpriv_v2 &&
-		    setattr_should_drop_suidgid(&nop_mnt_idmap,
+		    setattr_should_drop_suidgid(idmap,
 						file_inode(file))) {
 			goto writethrough;
 		}