Merge branch 'drm-next-analogix-dp-v2' of github.com:yakir-Yang/linux into drm-next

[cascardo/linux.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index ae68100..14a9719 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -53,6 +53,8 @@ struct swap_info_struct;
 struct seq_file;
 struct workqueue_struct;
 struct iov_iter;
+struct fscrypt_info;
+struct fscrypt_operations;
 
 extern void __init inode_init(void);
 extern void __init inode_init_early(void);
@@ -70,7 +72,7 @@ extern int sysctl_protected_hardlinks;
 struct buffer_head;
 typedef int (get_block_t)(struct inode *inode, sector_t iblock,
                        struct buffer_head *bh_result, int create);
-typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
+typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
                        ssize_t bytes, void *private);
 typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate);
 
@@ -320,6 +322,7 @@ struct writeback_control;
 #define IOCB_EVENTFD           (1 << 0)
 #define IOCB_APPEND            (1 << 1)
 #define IOCB_DIRECT            (1 << 2)
+#define IOCB_HIPRI             (1 << 3)
 
 struct kiocb {
        struct file             *ki_filp;
@@ -678,6 +681,10 @@ struct inode {
        struct hlist_head       i_fsnotify_marks;
 #endif
 
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+       struct fscrypt_info     *i_crypt_info;
+#endif
+
        void                    *i_private; /* fs or device private pointer */
 };
 
@@ -1323,6 +1330,8 @@ struct super_block {
 #endif
        const struct xattr_handler **s_xattr;
 
+       const struct fscrypt_operations *s_cop;
+
        struct hlist_bl_head    s_anon;         /* anonymous dentries for (nfs) exporting */
        struct list_head        s_mounts;       /* list of mounts; _not_ for fs use */
        struct block_device     *s_bdev;
@@ -1539,11 +1548,6 @@ extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
 extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **, unsigned int);
 extern int vfs_whiteout(struct inode *, struct dentry *);
 
-/*
- * VFS dentry helper functions.
- */
-extern void dentry_unhash(struct dentry *dentry);
-
 /*
  * VFS file helper functions.
  */
@@ -1709,9 +1713,9 @@ extern ssize_t __vfs_write(struct file *, const char __user *, size_t, loff_t *)
 extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
 extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
 extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
-               unsigned long, loff_t *);
+               unsigned long, loff_t *, int);
 extern ssize_t vfs_writev(struct file *, const struct iovec __user *,
-               unsigned long, loff_t *);
+               unsigned long, loff_t *, int);
 extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
                                   loff_t, size_t, unsigned int);
 extern int vfs_clone_file_range(struct file *file_in, loff_t pos_in,
@@ -2259,7 +2263,7 @@ extern long do_sys_open(int dfd, const char __user *filename, int flags,
 extern struct file *file_open_name(struct filename *, int, umode_t);
 extern struct file *filp_open(const char *, int, umode_t);
 extern struct file *file_open_root(struct dentry *, struct vfsmount *,
-                                  const char *, int);
+                                  const char *, int, umode_t);
 extern struct file * dentry_open(const struct path *, int, const struct cred *);
 extern int filp_close(struct file *, fl_owner_t id);
 
@@ -2576,7 +2580,22 @@ static inline void i_readcount_inc(struct inode *inode)
 #endif
 extern int do_pipe_flags(int *, int);
 
+enum kernel_read_file_id {
+       READING_FIRMWARE = 1,
+       READING_MODULE,
+       READING_KEXEC_IMAGE,
+       READING_KEXEC_INITRAMFS,
+       READING_POLICY,
+       READING_MAX_ID
+};
+
 extern int kernel_read(struct file *, loff_t, char *, unsigned long);
+extern int kernel_read_file(struct file *, void **, loff_t *, loff_t,
+                           enum kernel_read_file_id);
+extern int kernel_read_file_from_path(char *, void **, loff_t *, loff_t,
+                                     enum kernel_read_file_id);
+extern int kernel_read_file_from_fd(int, void **, loff_t *, loff_t,
+                                   enum kernel_read_file_id);
 extern ssize_t kernel_write(struct file *, const char *, size_t, loff_t);
 extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *);
 extern struct file * open_exec(const char *);