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| author | Miklos Szeredi <mszeredi@redhat.com> | 2019-10-15 16:11:41 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2019-10-15 16:11:41 +0200 |
| commit | 3f22c7467136adfa6d2a7baf7cd5c573f0641bd1 (patch) | |
| tree | f5b1f84e894ec982e4d554b7169fed2d8cd698e5 /fs/fuse | |
| parent | virtio-fs: Change module name to virtiofs.ko (diff) | |
| download | linux-3f22c7467136adfa6d2a7baf7cd5c573f0641bd1.tar.xz linux-3f22c7467136adfa6d2a7baf7cd5c573f0641bd1.zip | |
virtio-fs: don't show mount options
Virtio-fs does not accept any mount options, so it's confusing and wrong to
show any in /proc/mounts.
Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/fuse_i.h | 4 | ||||
| -rw-r--r-- | fs/fuse/inode.c | 4 | ||||
| -rw-r--r-- | fs/fuse/virtio_fs.c | 1 |
3 files changed, 9 insertions, 0 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 956aeaf961ae..d148188cfca4 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -479,6 +479,7 @@ struct fuse_fs_context { bool destroy:1; bool no_control:1; bool no_force_umount:1; + bool no_mount_options:1; unsigned int max_read; unsigned int blksize; const char *subtype; @@ -713,6 +714,9 @@ struct fuse_conn { /** Do not allow MNT_FORCE umount */ unsigned int no_force_umount:1; + /* Do not show mount options */ + unsigned int no_mount_options:1; + /** The number of requests waiting for completion */ atomic_t num_waiting; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index e040e2a2b621..16aec32f7f3d 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -558,6 +558,9 @@ static int fuse_show_options(struct seq_file *m, struct dentry *root) struct super_block *sb = root->d_sb; struct fuse_conn *fc = get_fuse_conn_super(sb); + if (fc->no_mount_options) + return 0; + seq_printf(m, ",user_id=%u", from_kuid_munged(fc->user_ns, fc->user_id)); seq_printf(m, ",group_id=%u", from_kgid_munged(fc->user_ns, fc->group_id)); if (fc->default_permissions) @@ -1180,6 +1183,7 @@ int fuse_fill_super_common(struct super_block *sb, struct fuse_fs_context *ctx) fc->destroy = ctx->destroy; fc->no_control = ctx->no_control; fc->no_force_umount = ctx->no_force_umount; + fc->no_mount_options = ctx->no_mount_options; err = -ENOMEM; root = fuse_get_root_inode(sb, ctx->rootmode); diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c index 6af3f131e468..e22a0c003c3d 100644 --- a/fs/fuse/virtio_fs.c +++ b/fs/fuse/virtio_fs.c @@ -992,6 +992,7 @@ static int virtio_fs_fill_super(struct super_block *sb) .destroy = true, .no_control = true, .no_force_umount = true, + .no_mount_options = true, }; mutex_lock(&virtio_fs_mutex); |