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gerrit-public.fairphone.software / kernel / msm-4.19 / 3e93cd671813e204c258f1e6c797959920cf7772 / . / include / linux / fs_struct.h
blob: 298cef1c079331dda1469752e803b19f6f89423e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifndef _LINUX_FS_STRUCT_H
2#define _LINUX_FS_STRUCT_H
3
Jan Blunck6ac08c32008-02-14 19:34:38 -0800[diff] [blame]4#include <linux/path.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]5
6struct fs_struct {
David Howells795e2fe2009-03-28 23:23:01 +0000[diff] [blame]7 atomic_t count; /* This usage count is used by check_unsafe_exec() for
8 * security checking purposes - therefore it may not be
9 * incremented, except by clone(CLONE_FS).
10 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]11 rwlock_t lock;
12 int umask;
Al Viro7f2da1e2008-05-10 20:44:54 -0400[diff] [blame]13 struct path root, pwd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]14};
15
Christoph Lameteraa362a82006-12-06 20:32:54 -0800[diff] [blame]16extern struct kmem_cache *fs_cachep;
17
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]18extern void exit_fs(struct task_struct *);
Jan Blunckac748a02008-02-14 19:34:39 -0800[diff] [blame]19extern void set_fs_root(struct fs_struct *, struct path *);
20extern void set_fs_pwd(struct fs_struct *, struct path *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]21extern struct fs_struct *copy_fs_struct(struct fs_struct *);
22extern void put_fs_struct(struct fs_struct *);
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame^]23extern void daemonize_fs_struct(void);
24extern int unshare_fs_struct(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]25
26#endif /* _LINUX_FS_STRUCT_H */