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-rw-r--r--include/linux/fs.h17
1 files changed, 5 insertions, 12 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 67e6732d4fd..7f61227827d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -9,6 +9,7 @@
#include <linux/config.h>
#include <linux/limits.h>
#include <linux/ioctl.h>
+#include <linux/rcuref.h>
/*
* It's silly to have NR_OPEN bigger than NR_FILE, but you can change
@@ -69,6 +70,7 @@ extern int dir_notify_enable;
#define READ 0
#define WRITE 1
#define READA 2 /* read-ahead - don't block if no resources */
+#define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */
#define SPECIAL 4 /* For non-blockdevice requests in request queue */
#define READ_SYNC (READ | (1 << BIO_RW_SYNC))
#define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC))
@@ -281,19 +283,9 @@ struct iattr {
struct timespec ia_atime;
struct timespec ia_mtime;
struct timespec ia_ctime;
- unsigned int ia_attr_flags;
};
/*
- * This is the inode attributes flag definitions
- */
-#define ATTR_FLAG_SYNCRONOUS 1 /* Syncronous write */
-#define ATTR_FLAG_NOATIME 2 /* Don't update atime */
-#define ATTR_FLAG_APPEND 4 /* Append-only file */
-#define ATTR_FLAG_IMMUTABLE 8 /* Immutable file */
-#define ATTR_FLAG_NODIRATIME 16 /* Don't update atime for directory */
-
-/*
* Includes for diskquotas.
*/
#include <linux/quota.h>
@@ -594,7 +586,6 @@ struct file {
unsigned int f_uid, f_gid;
struct file_ra_state f_ra;
- size_t f_maxcount;
unsigned long f_version;
void *f_security;
@@ -607,12 +598,13 @@ struct file {
spinlock_t f_ep_lock;
#endif /* #ifdef CONFIG_EPOLL */
struct address_space *f_mapping;
+ struct rcu_head f_rcuhead;
};
extern spinlock_t files_lock;
#define file_list_lock() spin_lock(&files_lock);
#define file_list_unlock() spin_unlock(&files_lock);
-#define get_file(x) atomic_inc(&(x)->f_count)
+#define get_file(x) rcuref_inc(&(x)->f_count)
#define file_count(x) atomic_read(&(x)->f_count)
#define MAX_NON_LFS ((1UL<<31) - 1)
@@ -1291,6 +1283,7 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
/* fs/open.c */
extern int do_truncate(struct dentry *, loff_t start);
+extern long do_sys_open(const char __user *filename, int flags, int mode);
extern struct file *filp_open(const char *, int, int);
extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
extern int filp_close(struct file *, fl_owner_t id);