#include #include #include #include "internal.h" /* * /proc/thread_self: */ static const char *proc_thread_self_get_link(struct dentry *dentry, struct inode *inode, struct delayed_call *done) { struct pid_namespace *ns = inode->i_sb->s_fs_info; pid_t tgid = task_tgid_nr_ns(current, ns); pid_t pid = task_pid_nr_ns(current, ns); char *name; if (!pid) return ERR_PTR(-ENOENT); name = kmalloc(PROC_NUMBUF + 6 + PROC_NUMBUF, dentry ? GFP_KERNEL : GFP_ATOMIC); if (unlikely(!name)) return dentry ? ERR_PTR(-ENOMEM) : ERR_PTR(-ECHILD); sprintf(name, "%d/task/%d", tgid, pid); set_delayed_call(done, kfree_link, name); return name; } static const struct inode_operations proc_thread_self_inode_operations = { .get_link = proc_thread_self_get_link, }; static unsigned thread_self_inum; int proc_setup_thread_self(struct super_block *s) { struct inode *root_inode = d_inode(s->s_root); struct pid_namespace *ns = s->s_fs_info; struct dentry *thread_self; inode_lock(root_inode); thread_self = d_alloc_name(s->s_root, "thread-self"); if (thread_self) { struct inode *inode = new_inode_pseudo(s); if (inode) { inode->i_ino = thread_self_inum; inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); inode->i_mode = S_IFLNK | S_IRWXUGO; inode->i_uid = GLOBAL_ROOT_UID; inode->i_gid = GLOBAL_ROOT_GID; inode->i_op = &proc_thread_self_inode_operations; d_add(thread_self, inode); } else { dput(thread_self); thread_self = ERR_PTR(-ENOMEM); } } else { thread_self = ERR_PTR(-ENOMEM); } inode_unlock(root_inode); if (IS_ERR(thread_self)) { pr_err("proc_fill_super: can't allocate /proc/thread_self\n"); return PTR_ERR(thread_self); } ns->proc_thread_self = thread_self; return 0; } void __init proc_thread_self_init(void) { proc_alloc_inum(&thread_self_inum); } nds-private-remove&id=24b86839fab8e8059d2b16e0067dc86a1a0d3514'>treecommit diff

path: root/sound/firewire

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author	Linus Torvalds <torvalds@linux-foundation.org>	2017-01-22 12:45:47 -0800
committer	Linus Torvalds <torvalds@linux-foundation.org>	2017-01-22 12:45:47 -0800
commit	24b86839fab8e8059d2b16e0067dc86a1a0d3514 (patch)
tree	d764e86e2bae3ef57779912ed062be725b1ca431 /sound/firewire
parent	585457fc8383e373ab923e46cd1f70bbfe46763f (diff)
parent	0fec9557fd0c5349e3bd1a2141612a60bc20bb71 (diff)

Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull smp/hotplug fix from Thomas Gleixner: "Remove an unused variable which is a leftover from the notifier removal" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Remove unused but set variable in _cpu_down()

Diffstat (limited to 'sound/firewire')


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