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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-19 19:42:02 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-19 19:42:02 +0200 |
commit | 933a90bf4f3505f8ec83bda21a3c7d70d7c2b426 (patch) | |
tree | ca81c209000a15670e3582760ad9bae1a9cde215 /net | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
parent | mnt_init(): call shmem_init() unconditionally (diff) | |
download | linux-933a90bf4f3505f8ec83bda21a3c7d70d7c2b426.tar.xz linux-933a90bf4f3505f8ec83bda21a3c7d70d7c2b426.zip |
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount updates from Al Viro:
"The first part of mount updates.
Convert filesystems to use the new mount API"
* 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
mnt_init(): call shmem_init() unconditionally
constify ksys_mount() string arguments
don't bother with registering rootfs
init_rootfs(): don't bother with init_ramfs_fs()
vfs: Convert smackfs to use the new mount API
vfs: Convert selinuxfs to use the new mount API
vfs: Convert securityfs to use the new mount API
vfs: Convert apparmorfs to use the new mount API
vfs: Convert openpromfs to use the new mount API
vfs: Convert xenfs to use the new mount API
vfs: Convert gadgetfs to use the new mount API
vfs: Convert oprofilefs to use the new mount API
vfs: Convert ibmasmfs to use the new mount API
vfs: Convert qib_fs/ipathfs to use the new mount API
vfs: Convert efivarfs to use the new mount API
vfs: Convert configfs to use the new mount API
vfs: Convert binfmt_misc to use the new mount API
convenience helper: get_tree_single()
convenience helper get_tree_nodev()
vfs: Kill sget_userns()
...
Diffstat (limited to 'net')
-rw-r--r-- | net/socket.c | 16 | ||||
-rw-r--r-- | net/sunrpc/rpc_pipe.c | 34 |
2 files changed, 36 insertions, 14 deletions
diff --git a/net/socket.c b/net/socket.c index 293d56836f01..6a9ab7a8b1d2 100644 --- a/net/socket.c +++ b/net/socket.c @@ -73,6 +73,7 @@ #include <linux/module.h> #include <linux/highmem.h> #include <linux/mount.h> +#include <linux/pseudo_fs.h> #include <linux/security.h> #include <linux/syscalls.h> #include <linux/compat.h> @@ -338,19 +339,22 @@ static const struct xattr_handler *sockfs_xattr_handlers[] = { NULL }; -static struct dentry *sockfs_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int sockfs_init_fs_context(struct fs_context *fc) { - return mount_pseudo_xattr(fs_type, "socket:", &sockfs_ops, - sockfs_xattr_handlers, - &sockfs_dentry_operations, SOCKFS_MAGIC); + struct pseudo_fs_context *ctx = init_pseudo(fc, SOCKFS_MAGIC); + if (!ctx) + return -ENOMEM; + ctx->ops = &sockfs_ops; + ctx->dops = &sockfs_dentry_operations; + ctx->xattr = sockfs_xattr_handlers; + return 0; } static struct vfsmount *sock_mnt __read_mostly; static struct file_system_type sock_fs_type = { .name = "sockfs", - .mount = sockfs_mount, + .init_fs_context = sockfs_init_fs_context, .kill_sb = kill_anon_super, }; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 73bd62979fe7..748bac601e47 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -14,6 +14,7 @@ #include <linux/string.h> #include <linux/pagemap.h> #include <linux/mount.h> +#include <linux/fs_context.h> #include <linux/namei.h> #include <linux/fsnotify.h> #include <linux/kernel.h> @@ -1352,11 +1353,11 @@ rpc_gssd_dummy_depopulate(struct dentry *pipe_dentry) } static int -rpc_fill_super(struct super_block *sb, void *data, int silent) +rpc_fill_super(struct super_block *sb, struct fs_context *fc) { struct inode *inode; struct dentry *root, *gssd_dentry; - struct net *net = get_net(sb->s_fs_info); + struct net *net = sb->s_fs_info; struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); int err; @@ -1413,12 +1414,29 @@ gssd_running(struct net *net) } EXPORT_SYMBOL_GPL(gssd_running); -static struct dentry * -rpc_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int rpc_fs_get_tree(struct fs_context *fc) +{ + fc->s_fs_info = get_net(fc->net_ns); + return vfs_get_super(fc, vfs_get_keyed_super, rpc_fill_super); +} + +static void rpc_fs_free_fc(struct fs_context *fc) { - struct net *net = current->nsproxy->net_ns; - return mount_ns(fs_type, flags, data, net, net->user_ns, rpc_fill_super); + if (fc->s_fs_info) + put_net(fc->s_fs_info); +} + +static const struct fs_context_operations rpc_fs_context_ops = { + .free = rpc_fs_free_fc, + .get_tree = rpc_fs_get_tree, +}; + +static int rpc_init_fs_context(struct fs_context *fc) +{ + put_user_ns(fc->user_ns); + fc->user_ns = get_user_ns(fc->net_ns->user_ns); + fc->ops = &rpc_fs_context_ops; + return 0; } static void rpc_kill_sb(struct super_block *sb) @@ -1446,7 +1464,7 @@ out: static struct file_system_type rpc_pipe_fs_type = { .owner = THIS_MODULE, .name = "rpc_pipefs", - .mount = rpc_mount, + .init_fs_context = rpc_init_fs_context, .kill_sb = rpc_kill_sb, }; MODULE_ALIAS_FS("rpc_pipefs"); |