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authorAndrey Albershteyn <aalbersh@redhat.com>2025-10-08 14:44:17 +0200
committerChristian Brauner <brauner@kernel.org>2025-10-10 13:44:03 +0200
commit4dd5b5ac089bb6ea719b7ffb748707ac9cbce4e4 (patch)
tree402dfd628d3c147a293d6aa453f10591e876f211
parenta779e27f24aeb679969ddd1fdd7f636e22ddbc1e (diff)
Revert "fs: make vfs_fileattr_[get|set] return -EOPNOTSUPP"
This reverts commit 474b155adf3927d2c944423045757b54aa1ca4de. This patch caused regression in ioctl_setflags(). Underlying filesystems use EOPNOTSUPP to indicate that flag is not supported. This error is also gets converted in ioctl_setflags(). Therefore, for unsupported flags error changed from EOPNOSUPP to ENOIOCTLCMD. Link: https://lore.kernel.org/linux-xfs/a622643f-1585-40b0-9441-cf7ece176e83@kernel.org/ Signed-off-by: Andrey Albershteyn <aalbersh@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
-rw-r--r--fs/file_attr.c12
-rw-r--r--fs/fuse/ioctl.c4
-rw-r--r--fs/overlayfs/copy_up.c2
-rw-r--r--fs/overlayfs/inode.c5
4 files changed, 7 insertions, 16 deletions
diff --git a/fs/file_attr.c b/fs/file_attr.c
index 12424d4945d0..460b2dd21a85 100644
--- a/fs/file_attr.c
+++ b/fs/file_attr.c
@@ -84,7 +84,7 @@ int vfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
int error;
if (!inode->i_op->fileattr_get)
- return -EOPNOTSUPP;
+ return -ENOIOCTLCMD;
error = security_inode_file_getattr(dentry, fa);
if (error)
@@ -270,7 +270,7 @@ int vfs_fileattr_set(struct mnt_idmap *idmap, struct dentry *dentry,
int err;
if (!inode->i_op->fileattr_set)
- return -EOPNOTSUPP;
+ return -ENOIOCTLCMD;
if (!inode_owner_or_capable(idmap, inode))
return -EPERM;
@@ -312,8 +312,6 @@ int ioctl_getflags(struct file *file, unsigned int __user *argp)
int err;
err = vfs_fileattr_get(file->f_path.dentry, &fa);
- if (err == -EOPNOTSUPP)
- err = -ENOIOCTLCMD;
if (!err)
err = put_user(fa.flags, argp);
return err;
@@ -335,8 +333,6 @@ int ioctl_setflags(struct file *file, unsigned int __user *argp)
fileattr_fill_flags(&fa, flags);
err = vfs_fileattr_set(idmap, dentry, &fa);
mnt_drop_write_file(file);
- if (err == -EOPNOTSUPP)
- err = -ENOIOCTLCMD;
}
}
return err;
@@ -349,8 +345,6 @@ int ioctl_fsgetxattr(struct file *file, void __user *argp)
int err;
err = vfs_fileattr_get(file->f_path.dentry, &fa);
- if (err == -EOPNOTSUPP)
- err = -ENOIOCTLCMD;
if (!err)
err = copy_fsxattr_to_user(&fa, argp);
@@ -371,8 +365,6 @@ int ioctl_fssetxattr(struct file *file, void __user *argp)
if (!err) {
err = vfs_fileattr_set(idmap, dentry, &fa);
mnt_drop_write_file(file);
- if (err == -EOPNOTSUPP)
- err = -ENOIOCTLCMD;
}
}
return err;
diff --git a/fs/fuse/ioctl.c b/fs/fuse/ioctl.c
index 57032eadca6c..fdc175e93f74 100644
--- a/fs/fuse/ioctl.c
+++ b/fs/fuse/ioctl.c
@@ -536,8 +536,6 @@ int fuse_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
cleanup:
fuse_priv_ioctl_cleanup(inode, ff);
- if (err == -ENOTTY)
- err = -EOPNOTSUPP;
return err;
}
@@ -574,7 +572,5 @@ int fuse_fileattr_set(struct mnt_idmap *idmap,
cleanup:
fuse_priv_ioctl_cleanup(inode, ff);
- if (err == -ENOTTY)
- err = -EOPNOTSUPP;
return err;
}
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index aac7e34f56c1..604a82acd164 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -178,7 +178,7 @@ static int ovl_copy_fileattr(struct inode *inode, const struct path *old,
err = ovl_real_fileattr_get(old, &oldfa);
if (err) {
/* Ntfs-3g returns -EINVAL for "no fileattr support" */
- if (err == -EOPNOTSUPP || err == -EINVAL)
+ if (err == -ENOTTY || err == -EINVAL)
return 0;
pr_warn("failed to retrieve lower fileattr (%pd2, err=%i)\n",
old->dentry, err);
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index aaa4cf579561..e11f310ce092 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -720,7 +720,10 @@ int ovl_real_fileattr_get(const struct path *realpath, struct file_kattr *fa)
if (err)
return err;
- return vfs_fileattr_get(realpath->dentry, fa);
+ err = vfs_fileattr_get(realpath->dentry, fa);
+ if (err == -ENOIOCTLCMD)
+ err = -ENOTTY;
+ return err;
}
int ovl_fileattr_get(struct dentry *dentry, struct file_kattr *fa)