diff options
Diffstat (limited to 'include/linux/filelock.h')
-rw-r--r-- | include/linux/filelock.h | 57 |
1 files changed, 39 insertions, 18 deletions
diff --git a/include/linux/filelock.h b/include/linux/filelock.h index a3cb59b7922a..d1fba98744a7 100644 --- a/include/linux/filelock.h +++ b/include/linux/filelock.h @@ -85,23 +85,28 @@ bool opens_in_grace(struct net *); * * Obviously, the last two criteria only matter for POSIX locks. */ -struct file_lock { - struct file_lock *fl_blocker; /* The lock, that is blocking us */ - struct list_head fl_list; /* link into file_lock_context */ - struct hlist_node fl_link; /* node in global lists */ - struct list_head fl_blocked_requests; /* list of requests with + +struct file_lock_core { + struct file_lock *flc_blocker; /* The lock that is blocking us */ + struct list_head flc_list; /* link into file_lock_context */ + struct hlist_node flc_link; /* node in global lists */ + struct list_head flc_blocked_requests; /* list of requests with * ->fl_blocker pointing here */ - struct list_head fl_blocked_member; /* node in + struct list_head flc_blocked_member; /* node in * ->fl_blocker->fl_blocked_requests */ - fl_owner_t fl_owner; - unsigned int fl_flags; - unsigned char fl_type; - pid_t fl_pid; - int fl_link_cpu; /* what cpu's list is this on? */ - wait_queue_head_t fl_wait; - struct file *fl_file; + fl_owner_t flc_owner; + unsigned int flc_flags; + unsigned char flc_type; + pid_t flc_pid; + int flc_link_cpu; /* what cpu's list is this on? */ + wait_queue_head_t flc_wait; + struct file *flc_file; +}; + +struct file_lock { + struct file_lock_core c; loff_t fl_start; loff_t fl_end; @@ -126,6 +131,22 @@ struct file_lock { } fl_u; } __randomize_layout; +/* Temporary macros to allow building during coccinelle conversion */ +#ifdef _NEED_FILE_LOCK_FIELD_MACROS +#define fl_list c.flc_list +#define fl_blocker c.flc_blocker +#define fl_link c.flc_link +#define fl_blocked_requests c.flc_blocked_requests +#define fl_blocked_member c.flc_blocked_member +#define fl_owner c.flc_owner +#define fl_flags c.flc_flags +#define fl_type c.flc_type +#define fl_pid c.flc_pid +#define fl_link_cpu c.flc_link_cpu +#define fl_wait c.flc_wait +#define fl_file c.flc_file +#endif + struct file_lock_context { spinlock_t flc_lock; struct list_head flc_flock; @@ -149,26 +170,26 @@ int fcntl_getlease(struct file *filp); static inline bool lock_is_unlock(struct file_lock *fl) { - return fl->fl_type == F_UNLCK; + return fl->c.flc_type == F_UNLCK; } static inline bool lock_is_read(struct file_lock *fl) { - return fl->fl_type == F_RDLCK; + return fl->c.flc_type == F_RDLCK; } static inline bool lock_is_write(struct file_lock *fl) { - return fl->fl_type == F_WRLCK; + return fl->c.flc_type == F_WRLCK; } static inline void locks_wake_up(struct file_lock *fl) { - wake_up(&fl->fl_wait); + wake_up(&fl->c.flc_wait); } /* for walking lists of file_locks linked by fl_list */ -#define for_each_file_lock(_fl, _head) list_for_each_entry(_fl, _head, fl_list) +#define for_each_file_lock(_fl, _head) list_for_each_entry(_fl, _head, c.flc_list) /* fs/locks.c */ void locks_free_lock_context(struct inode *inode); |