diff options
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index fb0426f349fc..7af239ca87e2 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -947,6 +947,7 @@ static inline unsigned imajor(const struct inode *inode) } struct fown_struct { + struct file *file; /* backpointer for security modules */ rwlock_t lock; /* protects pid, uid, euid fields */ struct pid *pid; /* pid or -pgrp where SIGIO should be sent */ enum pid_type pid_type; /* Kind of process group SIGIO should be sent to */ @@ -1011,7 +1012,7 @@ struct file { struct mutex f_pos_lock; loff_t f_pos; unsigned int f_flags; - struct fown_struct f_owner; + struct fown_struct *f_owner; const struct cred *f_cred; struct file_ra_state f_ra; struct path f_path; @@ -1076,6 +1077,12 @@ struct file_lease; #define OFFT_OFFSET_MAX type_max(off_t) #endif +int file_f_owner_allocate(struct file *file); +static inline struct fown_struct *file_f_owner(const struct file *file) +{ + return READ_ONCE(file->f_owner); +} + extern void send_sigio(struct fown_struct *fown, int fd, int band); static inline struct inode *file_inode(const struct file *f) @@ -1124,7 +1131,7 @@ extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force extern int f_setown(struct file *filp, int who, int force); extern void f_delown(struct file *filp); extern pid_t f_getown(struct file *filp); -extern int send_sigurg(struct fown_struct *fown); +extern int send_sigurg(struct file *file); /* * sb->s_flags. Note that these mirror the equivalent MS_* flags where |