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-rw-r--r--include/linux/fs.h60
1 files changed, 24 insertions, 36 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 61211ad823fe..562d2855cf30 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -95,8 +95,12 @@ struct inodes_stat_t {
#define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */
#define READ_SYNC (READ | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
#define READ_META (READ | (1 << BIO_RW_META))
-#define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
-#define SWRITE_SYNC (SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
+#define WRITE_SYNC_PLUG (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
+#define WRITE_SYNC (WRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
+#define WRITE_ODIRECT (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
+#define SWRITE_SYNC_PLUG \
+ (SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
+#define SWRITE_SYNC (SWRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
#define WRITE_BARRIER (WRITE | (1 << BIO_RW_BARRIER))
#define DISCARD_NOBARRIER (1 << BIO_RW_DISCARD)
#define DISCARD_BARRIER ((1 << BIO_RW_DISCARD) | (1 << BIO_RW_BARRIER))
@@ -1695,6 +1699,9 @@ struct file_system_type {
struct lock_class_key i_alloc_sem_key;
};
+extern int get_sb_ns(struct file_system_type *fs_type, int flags, void *data,
+ int (*fill_super)(struct super_block *, void *, int),
+ struct vfsmount *mnt);
extern int get_sb_bdev(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
int (*fill_super)(struct super_block *, void *, int),
@@ -1741,6 +1748,8 @@ extern void drop_collected_mounts(struct vfsmount *);
extern int vfs_statfs(struct dentry *, struct kstatfs *);
+extern int current_umask(void);
+
/* /sys/fs */
extern struct kobject *fs_kobj;
@@ -1885,6 +1894,18 @@ extern int fsync_super(struct super_block *);
extern int fsync_no_super(struct block_device *);
#else
static inline void bd_forget(struct inode *inode) {}
+static inline int sync_blockdev(struct block_device *bdev) { return 0; }
+static inline void invalidate_bdev(struct block_device *bdev) {}
+
+static inline struct super_block *freeze_bdev(struct block_device *sb)
+{
+ return NULL;
+}
+
+static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
+{
+ return 0;
+}
#endif
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
@@ -2323,19 +2344,7 @@ ssize_t simple_transaction_read(struct file *file, char __user *buf,
size_t size, loff_t *pos);
int simple_transaction_release(struct inode *inode, struct file *file);
-static inline void simple_transaction_set(struct file *file, size_t n)
-{
- struct simple_transaction_argresp *ar = file->private_data;
-
- BUG_ON(n > SIMPLE_TRANSACTION_LIMIT);
-
- /*
- * The barrier ensures that ar->size will really remain zero until
- * ar->data is ready for reading.
- */
- smp_mb();
- ar->size = n;
-}
+void simple_transaction_set(struct file *file, size_t n);
/*
* simple attribute files
@@ -2382,27 +2391,6 @@ ssize_t simple_attr_read(struct file *file, char __user *buf,
ssize_t simple_attr_write(struct file *file, const char __user *buf,
size_t len, loff_t *ppos);
-
-#ifdef CONFIG_SECURITY
-static inline char *alloc_secdata(void)
-{
- return (char *)get_zeroed_page(GFP_KERNEL);
-}
-
-static inline void free_secdata(void *secdata)
-{
- free_page((unsigned long)secdata);
-}
-#else
-static inline char *alloc_secdata(void)
-{
- return (char *)1;
-}
-
-static inline void free_secdata(void *secdata)
-{ }
-#endif /* CONFIG_SECURITY */
-
struct ctl_table;
int proc_nr_files(struct ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos);