diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 00:51:54 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 00:51:54 (GMT) |
commit | 20b4fb485227404329e41ad15588afad3df23050 (patch) | |
tree | f3e099f0ab3da8a93b447203e294d2bb22f6dc05 /include/linux | |
parent | b9394d8a657cd3c064fa432aa0905c1b58b38fe9 (diff) | |
parent | ac3e3c5b1164397656df81b9e9ab4991184d3236 (diff) | |
download | linux-fsl-qoriq-20b4fb485227404329e41ad15588afad3df23050.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/binfmts.h | 1 | ||||
-rw-r--r-- | include/linux/cgroup.h | 2 | ||||
-rw-r--r-- | include/linux/cpuset.h | 3 | ||||
-rw-r--r-- | include/linux/fdtable.h | 1 | ||||
-rw-r--r-- | include/linux/fs.h | 19 | ||||
-rw-r--r-- | include/linux/kcore.h | 38 | ||||
-rw-r--r-- | include/linux/nubus.h | 4 | ||||
-rw-r--r-- | include/linux/of.h | 10 | ||||
-rw-r--r-- | include/linux/pid_namespace.h | 1 | ||||
-rw-r--r-- | include/linux/pipe_fs_i.h | 11 | ||||
-rw-r--r-- | include/linux/proc_fs.h | 325 | ||||
-rw-r--r-- | include/linux/proc_ns.h | 74 | ||||
-rw-r--r-- | include/linux/profile.h | 4 | ||||
-rw-r--r-- | include/linux/seq_file.h | 1 | ||||
-rw-r--r-- | include/linux/signal.h | 5 | ||||
-rw-r--r-- | include/linux/tty.h | 7 |
16 files changed, 208 insertions, 298 deletions
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index c3a0914..70cf138 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -118,5 +118,6 @@ extern int prepare_bprm_creds(struct linux_binprm *bprm); extern void install_exec_creds(struct linux_binprm *bprm); extern void set_binfmt(struct linux_binfmt *new); extern void free_bprm(struct linux_binprm *); +extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t); #endif /* _LINUX_BINFMTS_H */ diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 646ab9d..3bff9ce 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -39,7 +39,7 @@ extern int cgroupstats_build(struct cgroupstats *stats, extern int cgroup_load_subsys(struct cgroup_subsys *ss); extern void cgroup_unload_subsys(struct cgroup_subsys *ss); -extern const struct file_operations proc_cgroup_operations; +extern int proc_cgroup_show(struct seq_file *, void *); /* * Define the enumeration of all cgroup subsystems. diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index ccd1de8..cc1b01c 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -63,10 +63,9 @@ extern int cpuset_mems_allowed_intersects(const struct task_struct *tsk1, extern int cpuset_memory_pressure_enabled; extern void __cpuset_memory_pressure_bump(void); -extern const struct file_operations proc_cpuset_operations; -struct seq_file; extern void cpuset_task_status_allowed(struct seq_file *m, struct task_struct *task); +extern int proc_cpuset_show(struct seq_file *, void *); extern int cpuset_mem_spread_node(void); extern int cpuset_slab_spread_node(void); diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index fb7daca..085197b 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -27,7 +27,6 @@ struct fdtable { unsigned long *close_on_exec; unsigned long *open_fds; struct rcu_head rcu; - struct fdtable *next; }; static inline bool close_on_exec(int fd, const struct fdtable *fdt) diff --git a/include/linux/fs.h b/include/linux/fs.h index 17d8b15..e8cd6b8 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2082,7 +2082,6 @@ extern int sync_filesystem(struct super_block *); extern const struct file_operations def_blk_fops; extern const struct file_operations def_chr_fops; extern const struct file_operations bad_sock_fops; -extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); @@ -2154,10 +2153,6 @@ extern void init_special_inode(struct inode *, umode_t, dev_t); extern void make_bad_inode(struct inode *); extern int is_bad_inode(struct inode *); -extern const struct file_operations read_pipefifo_fops; -extern const struct file_operations write_pipefifo_fops; -extern const struct file_operations rdwr_pipefifo_fops; - #ifdef CONFIG_BLOCK /* * return READ, READA, or WRITE @@ -2225,6 +2220,20 @@ static inline struct inode *file_inode(struct file *f) return f->f_inode; } +static inline void file_start_write(struct file *file) +{ + if (!S_ISREG(file_inode(file)->i_mode)) + return; + __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, true); +} + +static inline void file_end_write(struct file *file) +{ + if (!S_ISREG(file_inode(file)->i_mode)) + return; + __sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE); +} + /* * get_write_access() gets write permission for a file. * put_write_access() releases this write permission. diff --git a/include/linux/kcore.h b/include/linux/kcore.h new file mode 100644 index 0000000..d927622 --- /dev/null +++ b/include/linux/kcore.h @@ -0,0 +1,38 @@ +/* + * /proc/kcore definitions + */ +#ifndef _LINUX_KCORE_H +#define _LINUX_KCORE_H + +enum kcore_type { + KCORE_TEXT, + KCORE_VMALLOC, + KCORE_RAM, + KCORE_VMEMMAP, + KCORE_OTHER, +}; + +struct kcore_list { + struct list_head list; + unsigned long addr; + size_t size; + int type; +}; + +struct vmcore { + struct list_head list; + unsigned long long paddr; + unsigned long long size; + loff_t offset; +}; + +#ifdef CONFIG_PROC_KCORE +extern void kclist_add(struct kcore_list *, void *, size_t, int type); +#else +static inline +void kclist_add(struct kcore_list *new, void *addr, size_t size, int type) +{ +} +#endif + +#endif /* _LINUX_KCORE_H */ diff --git a/include/linux/nubus.h b/include/linux/nubus.h index a8696bb..b374052 100644 --- a/include/linux/nubus.h +++ b/include/linux/nubus.h @@ -80,7 +80,11 @@ extern struct nubus_board* nubus_boards; /* Generic NuBus interface functions, modelled after the PCI interface */ void nubus_scan_bus(void); +#ifdef CONFIG_PROC_FS extern void nubus_proc_init(void); +#else +static inline void nubus_proc_init(void) {} +#endif int get_nubus_list(char *buf); int nubus_proc_attach_device(struct nubus_dev *dev); int nubus_proc_detach_device(struct nubus_dev *dev); diff --git a/include/linux/of.h b/include/linux/of.h index a0f1292..2d25ff8 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -540,4 +540,14 @@ static inline int of_property_read_u32(const struct device_node *np, return of_property_read_u32_array(np, propname, out_value, 1); } +#if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE) +extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *); +extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop); +extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde, + struct property *prop); +extern void proc_device_tree_update_prop(struct proc_dir_entry *pde, + struct property *newprop, + struct property *oldprop); +#endif + #endif /* _LINUX_OF_H */ diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 8ac3283..731e4ec 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -30,6 +30,7 @@ struct pid_namespace { struct pid_namespace *parent; #ifdef CONFIG_PROC_FS struct vfsmount *proc_mnt; + struct dentry *proc_self; #endif #ifdef CONFIG_BSD_PROCESS_ACCT struct bsd_acct_struct *bacct; diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index ad1a427..b8809fe 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -27,6 +27,7 @@ struct pipe_buffer { /** * struct pipe_inode_info - a linux kernel pipe + * @mutex: mutex protecting the whole thing * @wait: reader/writer wait point in case of empty/full pipe * @nrbufs: the number of non-empty pipe buffers in this pipe * @buffers: total number of buffers (should be a power of 2) @@ -34,26 +35,27 @@ struct pipe_buffer { * @tmp_page: cached released page * @readers: number of current readers of this pipe * @writers: number of current writers of this pipe + * @files: number of struct file refering this pipe (protected by ->i_lock) * @waiting_writers: number of writers blocked waiting for room * @r_counter: reader counter * @w_counter: writer counter * @fasync_readers: reader side fasync * @fasync_writers: writer side fasync - * @inode: inode this pipe is attached to * @bufs: the circular array of pipe buffers **/ struct pipe_inode_info { + struct mutex mutex; wait_queue_head_t wait; unsigned int nrbufs, curbuf, buffers; unsigned int readers; unsigned int writers; + unsigned int files; unsigned int waiting_writers; unsigned int r_counter; unsigned int w_counter; struct page *tmp_page; struct fasync_struct *fasync_readers; struct fasync_struct *fasync_writers; - struct inode *inode; struct pipe_buffer *bufs; }; @@ -144,9 +146,8 @@ int pipe_proc_fn(struct ctl_table *, int, void __user *, size_t *, loff_t *); /* Drop the inode semaphore and wait for a pipe event, atomically */ void pipe_wait(struct pipe_inode_info *pipe); -struct pipe_inode_info * alloc_pipe_info(struct inode * inode); -void free_pipe_info(struct inode * inode); -void __free_pipe_info(struct pipe_inode_info *); +struct pipe_inode_info *alloc_pipe_info(void); +void free_pipe_info(struct pipe_inode_info *); /* Generic pipe buffer ops functions */ void *generic_pipe_buf_map(struct pipe_inode_info *, struct pipe_buffer *, int); diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 94dfb2a..608e60a 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -1,318 +1,79 @@ -#ifndef _LINUX_PROC_FS_H -#define _LINUX_PROC_FS_H - -#include <linux/slab.h> -#include <linux/fs.h> -#include <linux/spinlock.h> -#include <linux/magic.h> -#include <linux/atomic.h> - -struct net; -struct completion; -struct mm_struct; - /* * The proc filesystem constants/structures */ +#ifndef _LINUX_PROC_FS_H +#define _LINUX_PROC_FS_H -/* - * Offset of the first process in the /proc root directory.. - */ -#define FIRST_PROCESS_ENTRY 256 - -/* Worst case buffer size needed for holding an integer. */ -#define PROC_NUMBUF 13 - -/* - * We always define these enumerators - */ - -enum { - PROC_ROOT_INO = 1, - PROC_IPC_INIT_INO = 0xEFFFFFFFU, - PROC_UTS_INIT_INO = 0xEFFFFFFEU, - PROC_USER_INIT_INO = 0xEFFFFFFDU, - PROC_PID_INIT_INO = 0xEFFFFFFCU, -}; - -/* - * This is not completely implemented yet. The idea is to - * create an in-memory tree (like the actual /proc filesystem - * tree) of these proc_dir_entries, so that we can dynamically - * add new files to /proc. - * - * The "next" pointer creates a linked list of one /proc directory, - * while parent/subdir create the directory structure (every - * /proc file has a parent, but "subdir" is NULL for all - * non-directory entries). - */ - -typedef int (read_proc_t)(char *page, char **start, off_t off, - int count, int *eof, void *data); -typedef int (write_proc_t)(struct file *file, const char __user *buffer, - unsigned long count, void *data); - -struct proc_dir_entry { - unsigned int low_ino; - umode_t mode; - nlink_t nlink; - kuid_t uid; - kgid_t gid; - loff_t size; - const struct inode_operations *proc_iops; - /* - * NULL ->proc_fops means "PDE is going away RSN" or - * "PDE is just created". In either case, e.g. ->read_proc won't be - * called because it's too late or too early, respectively. - * - * If you're allocating ->proc_fops dynamically, save a pointer - * somewhere. - */ - const struct file_operations *proc_fops; - struct proc_dir_entry *next, *parent, *subdir; - void *data; - read_proc_t *read_proc; - write_proc_t *write_proc; - atomic_t count; /* use count */ - int pde_users; /* number of callers into module in progress */ - struct completion *pde_unload_completion; - struct list_head pde_openers; /* who did ->open, but not ->release */ - spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ - u8 namelen; - char name[]; -}; - -enum kcore_type { - KCORE_TEXT, - KCORE_VMALLOC, - KCORE_RAM, - KCORE_VMEMMAP, - KCORE_OTHER, -}; - -struct kcore_list { - struct list_head list; - unsigned long addr; - size_t size; - int type; -}; +#include <linux/types.h> +#include <linux/fs.h> -struct vmcore { - struct list_head list; - unsigned long long paddr; - unsigned long long size; - loff_t offset; -}; +struct proc_dir_entry; #ifdef CONFIG_PROC_FS extern void proc_root_init(void); - -void proc_flush_task(struct task_struct *task); - -extern struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, - struct proc_dir_entry *parent); -struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, - struct proc_dir_entry *parent, - const struct file_operations *proc_fops, - void *data); -extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent); -extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); - -struct pid_namespace; - -extern int pid_ns_prepare_proc(struct pid_namespace *ns); -extern void pid_ns_release_proc(struct pid_namespace *ns); - -/* - * proc_tty.c - */ -struct tty_driver; -#ifdef CONFIG_TTY -extern void proc_tty_init(void); -#else -static inline void proc_tty_init(void) -{ } -#endif -extern void proc_tty_register_driver(struct tty_driver *driver); -extern void proc_tty_unregister_driver(struct tty_driver *driver); - -/* - * proc_devtree.c - */ -#ifdef CONFIG_PROC_DEVICETREE -struct device_node; -struct property; -extern void proc_device_tree_init(void); -extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *); -extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop); -extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde, - struct property *prop); -extern void proc_device_tree_update_prop(struct proc_dir_entry *pde, - struct property *newprop, - struct property *oldprop); -#endif /* CONFIG_PROC_DEVICETREE */ +extern void proc_flush_task(struct task_struct *); extern struct proc_dir_entry *proc_symlink(const char *, struct proc_dir_entry *, const char *); -extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *); -extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, - struct proc_dir_entry *parent); - -static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, - struct proc_dir_entry *parent, const struct file_operations *proc_fops) +extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *); +extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t, + struct proc_dir_entry *, void *); +extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t, + struct proc_dir_entry *); + +extern struct proc_dir_entry *proc_create_data(const char *, umode_t, + struct proc_dir_entry *, + const struct file_operations *, + void *); + +static inline struct proc_dir_entry *proc_create( + const char *name, umode_t mode, struct proc_dir_entry *parent, + const struct file_operations *proc_fops) { return proc_create_data(name, mode, parent, proc_fops, NULL); } -static inline struct proc_dir_entry *create_proc_read_entry(const char *name, - umode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) -{ - struct proc_dir_entry *res=create_proc_entry(name,mode,base); - if (res) { - res->read_proc=read_proc; - res->data=data; - } - return res; -} - -extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, - struct proc_dir_entry *parent); - -extern struct file *proc_ns_fget(int fd); -extern bool proc_ns_inode(struct inode *inode); +extern void proc_set_size(struct proc_dir_entry *, loff_t); +extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); +extern void *PDE_DATA(const struct inode *); +extern void *proc_get_parent_data(const struct inode *); +extern void proc_remove(struct proc_dir_entry *); +extern void remove_proc_entry(const char *, struct proc_dir_entry *); +extern int remove_proc_subtree(const char *, struct proc_dir_entry *); -extern int proc_alloc_inum(unsigned int *pino); -extern void proc_free_inum(unsigned int inum); -#else +#else /* CONFIG_PROC_FS */ static inline void proc_flush_task(struct task_struct *task) { } -static inline struct proc_dir_entry *create_proc_entry(const char *name, - umode_t mode, struct proc_dir_entry *parent) { return NULL; } - -#define proc_create(name, mode, parent, fops) ({ (void)(mode), NULL; }) - -static inline struct proc_dir_entry *proc_create_data(const char *name, - umode_t mode, struct proc_dir_entry *parent, - const struct file_operations *proc_fops, void *data) -{ - return NULL; -} -#define remove_proc_entry(name, parent) do {} while (0) -#define remove_proc_subtree(name, parent) do {} while (0) - static inline struct proc_dir_entry *proc_symlink(const char *name, - struct proc_dir_entry *parent,const char *dest) {return NULL;} + struct proc_dir_entry *parent,const char *dest) { return NULL;} static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} +static inline struct proc_dir_entry *proc_mkdir_data(const char *name, + umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; } static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } +#define proc_create(name, mode, parent, proc_fops) ({NULL;}) +#define proc_create_data(name, mode, parent, proc_fops, data) ({NULL;}) -static inline struct proc_dir_entry *create_proc_read_entry(const char *name, - umode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) { return NULL; } - -struct tty_driver; -static inline void proc_tty_register_driver(struct tty_driver *driver) {}; -static inline void proc_tty_unregister_driver(struct tty_driver *driver) {}; +static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} +static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {} +static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;} +static inline void *proc_get_parent_data(const struct inode *inode) { BUG(); return NULL; } -static inline int pid_ns_prepare_proc(struct pid_namespace *ns) -{ - return 0; -} - -static inline void pid_ns_release_proc(struct pid_namespace *ns) -{ -} - -static inline struct file *proc_ns_fget(int fd) -{ - return ERR_PTR(-EINVAL); -} - -static inline bool proc_ns_inode(struct inode *inode) -{ - return false; -} +static inline void proc_remove(struct proc_dir_entry *de) {} +#define remove_proc_entry(name, parent) do {} while (0) +static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; } -static inline int proc_alloc_inum(unsigned int *inum) -{ - *inum = 1; - return 0; -} -static inline void proc_free_inum(unsigned int inum) -{ -} #endif /* CONFIG_PROC_FS */ -#if !defined(CONFIG_PROC_KCORE) -static inline void -kclist_add(struct kcore_list *new, void *addr, size_t size, int type) +static inline struct proc_dir_entry *proc_net_mkdir( + struct net *net, const char *name, struct proc_dir_entry *parent) { + return proc_mkdir_data(name, 0, parent, net); } -#else -extern void kclist_add(struct kcore_list *, void *, size_t, int type); -#endif - -struct nsproxy; -struct proc_ns_operations { - const char *name; - int type; - void *(*get)(struct task_struct *task); - void (*put)(void *ns); - int (*install)(struct nsproxy *nsproxy, void *ns); - unsigned int (*inum)(void *ns); -}; -extern const struct proc_ns_operations netns_operations; -extern const struct proc_ns_operations utsns_operations; -extern const struct proc_ns_operations ipcns_operations; -extern const struct proc_ns_operations pidns_operations; -extern const struct proc_ns_operations userns_operations; -extern const struct proc_ns_operations mntns_operations; - -union proc_op { - int (*proc_get_link)(struct dentry *, struct path *); - int (*proc_read)(struct task_struct *task, char *page); - int (*proc_show)(struct seq_file *m, - struct pid_namespace *ns, struct pid *pid, - struct task_struct *task); -}; - -struct ctl_table_header; -struct ctl_table; - -struct proc_inode { - struct pid *pid; - int fd; - union proc_op op; - struct proc_dir_entry *pde; - struct ctl_table_header *sysctl; - struct ctl_table *sysctl_entry; - void *ns; - const struct proc_ns_operations *ns_ops; - struct inode vfs_inode; -}; - -static inline struct proc_inode *PROC_I(const struct inode *inode) -{ - return container_of(inode, struct proc_inode, vfs_inode); -} - -static inline struct proc_dir_entry *PDE(const struct inode *inode) -{ - return PROC_I(inode)->pde; -} - -static inline struct net *PDE_NET(struct proc_dir_entry *pde) -{ - return pde->parent->data; -} - -#include <linux/signal.h> -void render_sigset_t(struct seq_file *m, const char *header, sigset_t *set); #endif /* _LINUX_PROC_FS_H */ diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h new file mode 100644 index 0000000..34a1e10 --- /dev/null +++ b/include/linux/proc_ns.h @@ -0,0 +1,74 @@ +/* + * procfs namespace bits + */ +#ifndef _LINUX_PROC_NS_H +#define _LINUX_PROC_NS_H + +struct pid_namespace; +struct nsproxy; + +struct proc_ns_operations { + const char *name; + int type; + void *(*get)(struct task_struct *task); + void (*put)(void *ns); + int (*install)(struct nsproxy *nsproxy, void *ns); + unsigned int (*inum)(void *ns); +}; + +struct proc_ns { + void *ns; + const struct proc_ns_operations *ns_ops; +}; + +extern const struct proc_ns_operations netns_operations; +extern const struct proc_ns_operations utsns_operations; +extern const struct proc_ns_operations ipcns_operations; +extern const struct proc_ns_operations pidns_operations; +extern const struct proc_ns_operations userns_operations; +extern const struct proc_ns_operations mntns_operations; + +/* + * We always define these enumerators + */ +enum { + PROC_ROOT_INO = 1, + PROC_IPC_INIT_INO = 0xEFFFFFFFU, + PROC_UTS_INIT_INO = 0xEFFFFFFEU, + PROC_USER_INIT_INO = 0xEFFFFFFDU, + PROC_PID_INIT_INO = 0xEFFFFFFCU, +}; + +#ifdef CONFIG_PROC_FS + +extern int pid_ns_prepare_proc(struct pid_namespace *ns); +extern void pid_ns_release_proc(struct pid_namespace *ns); +extern struct file *proc_ns_fget(int fd); +extern struct proc_ns *get_proc_ns(struct inode *); +extern int proc_alloc_inum(unsigned int *pino); +extern void proc_free_inum(unsigned int inum); +extern bool proc_ns_inode(struct inode *inode); + +#else /* CONFIG_PROC_FS */ + +static inline int pid_ns_prepare_proc(struct pid_namespace *ns) { return 0; } +static inline void pid_ns_release_proc(struct pid_namespace *ns) {} + +static inline struct file *proc_ns_fget(int fd) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct proc_ns *get_proc_ns(struct inode *inode) { return NULL; } + +static inline int proc_alloc_inum(unsigned int *inum) +{ + *inum = 1; + return 0; +} +static inline void proc_free_inum(unsigned int inum) {} +static inline bool proc_ns_inode(struct inode *inode) { return false; } + +#endif /* CONFIG_PROC_FS */ + +#endif /* _LINUX_PROC_NS_H */ diff --git a/include/linux/profile.h b/include/linux/profile.h index 2112390..aaad386 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -18,10 +18,10 @@ struct pt_regs; struct notifier_block; #if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS) -void create_prof_cpu_mask(struct proc_dir_entry *de); +void create_prof_cpu_mask(void); int create_proc_profile(void); #else -static inline void create_prof_cpu_mask(struct proc_dir_entry *de) +static inline void create_prof_cpu_mask(void) { } diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index 68a04a3..2da29ac 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -123,6 +123,7 @@ static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask) } int single_open(struct file *, int (*)(struct seq_file *, void *), void *); +int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t); int single_release(struct inode *, struct file *); void *__seq_open_private(struct file *, const struct seq_operations *, int); int seq_open_private(struct file *, const struct seq_operations *, int); diff --git a/include/linux/signal.h b/include/linux/signal.h index 9475c5c..d897484 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -434,4 +434,9 @@ void signals_init(void); int restore_altstack(const stack_t __user *); int __save_altstack(stack_t __user *, unsigned long); +#ifdef CONFIG_PROC_FS +struct seq_file; +extern void render_sigset_t(struct seq_file *, const char *, sigset_t *); +#endif + #endif /* _LINUX_SIGNAL_H */ diff --git a/include/linux/tty.h b/include/linux/tty.h index 367a9df..7e92bd8 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -691,5 +691,12 @@ do { \ finish_wait(&wq, &__wait); \ } while (0) +#ifdef CONFIG_PROC_FS +extern void proc_tty_register_driver(struct tty_driver *); +extern void proc_tty_unregister_driver(struct tty_driver *); +#else +static inline void proc_tty_register_driver(struct tty_driver *d) {} +static inline void proc_tty_unregister_driver(struct tty_driver *d) {} +#endif #endif |