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authorMiklos Szeredi <mszeredi@redhat.com>2021-10-21 11:01:39 +0300
committerMiklos Szeredi <mszeredi@redhat.com>2021-10-21 11:01:39 +0300
commitc191cd07ee948c93081d8e4cba43d23b18b2f3da (patch)
tree8ef6950aca80f5cbc3500972b67660e09d8d61f6 /fs
parenta27c061a49afd7ad2d935e6ac734e2a9f62861b8 (diff)
downloadlinux-c191cd07ee948c93081d8e4cba43d23b18b2f3da.tar.xz
fuse: clean up fuse_mount destruction
1. call fuse_mount_destroy() for open coded variants 2. before deactivate_locked_super() don't need fuse_mount destruction since that will now be done (if ->s_fs_info is not cleared) 3. rearrange fuse_mount setup in fuse_get_tree_submount() so that the regular pattern can be used Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/fuse/inode.c17
-rw-r--r--fs/fuse/virtio_fs.c9
2 files changed, 7 insertions, 19 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 30ca1f71d777..308daee54c12 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1415,20 +1415,17 @@ static int fuse_get_tree_submount(struct fs_context *fsc)
if (!fm)
return -ENOMEM;
+ fm->fc = fuse_conn_get(fc);
fsc->s_fs_info = fm;
sb = sget_fc(fsc, NULL, set_anon_super_fc);
- if (IS_ERR(sb)) {
- kfree(fm);
+ if (fsc->s_fs_info)
+ fuse_mount_destroy(fm);
+ if (IS_ERR(sb))
return PTR_ERR(sb);
- }
- fm->fc = fuse_conn_get(fc);
/* Initialize superblock, making @mp_fi its root */
err = fuse_fill_super_submount(sb, mp_fi);
if (err) {
- fuse_conn_put(fc);
- kfree(fm);
- sb->s_fs_info = NULL;
deactivate_locked_super(sb);
return err;
}
@@ -1595,16 +1592,12 @@ static int fuse_fill_super(struct super_block *sb, struct fs_context *fsc)
err = fuse_fill_super_common(sb, ctx);
if (err)
- goto err_put_conn;
+ goto err;
/* file->private_data shall be visible on all CPUs after this */
smp_mb();
fuse_send_init(get_fuse_mount_super(sb));
return 0;
- err_put_conn:
- fuse_conn_put(fc);
- kfree(fm);
- sb->s_fs_info = NULL;
err:
return err;
}
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index fa80d250c802..94fc874f5de7 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -1456,19 +1456,14 @@ static int virtio_fs_get_tree(struct fs_context *fsc)
fsc->s_fs_info = fm;
sb = sget_fc(fsc, virtio_fs_test_super, set_anon_super_fc);
- if (fsc->s_fs_info) {
- fuse_conn_put(fc);
- kfree(fm);
- }
+ if (fsc->s_fs_info)
+ fuse_mount_destroy(fm);
if (IS_ERR(sb))
return PTR_ERR(sb);
if (!sb->s_root) {
err = virtio_fs_fill_super(sb, fsc);
if (err) {
- fuse_conn_put(fc);
- kfree(fm);
- sb->s_fs_info = NULL;
deactivate_locked_super(sb);
return err;
}