From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- include/linux/fs_struct.h | 55 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 include/linux/fs_struct.h (limited to 'include/linux/fs_struct.h') diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h new file mode 100644 index 00000000..2b93a9a5 --- /dev/null +++ b/include/linux/fs_struct.h @@ -0,0 +1,55 @@ +#ifndef _LINUX_FS_STRUCT_H +#define _LINUX_FS_STRUCT_H + +#include +#include +#include + +struct fs_struct { + int users; + spinlock_t lock; + seqcount_t seq; + int umask; + int in_exec; + struct path root, pwd; +}; + +extern struct kmem_cache *fs_cachep; + +extern void exit_fs(struct task_struct *); +extern void set_fs_root(struct fs_struct *, const struct path *); +extern void set_fs_pwd(struct fs_struct *, const struct path *); +extern struct fs_struct *copy_fs_struct(struct fs_struct *); +extern void free_fs_struct(struct fs_struct *); +extern int unshare_fs_struct(void); + +static inline void get_fs_root(struct fs_struct *fs, struct path *root) +{ + spin_lock(&fs->lock); + *root = fs->root; + path_get(root); + spin_unlock(&fs->lock); +} + +static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd) +{ + spin_lock(&fs->lock); + *pwd = fs->pwd; + path_get(pwd); + spin_unlock(&fs->lock); +} + +static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root, + struct path *pwd) +{ + spin_lock(&fs->lock); + *root = fs->root; + path_get(root); + *pwd = fs->pwd; + path_get(pwd); + spin_unlock(&fs->lock); +} + +extern bool current_chrooted(void); + +#endif /* _LINUX_FS_STRUCT_H */ -- cgit v1.3.1