i2c: Delete the i2c-isa pseudo bus driver

[linux-2.6-omap-h63xx.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index bc6d27cecaacac36313f848c8f28ab3ad8e21425..6a41f4cab14c9a6efa90c824006497a55a230a19 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -30,6 +30,7 @@
 #define SEEK_SET       0       /* seek relative to beginning of file */
 #define SEEK_CUR       1       /* seek relative to current file position */
 #define SEEK_END       2       /* seek relative to end of file */
+#define SEEK_MAX       SEEK_END
 
 /* And dynamically-tunable limits and defaults: */
 struct files_stat_struct {
@@ -91,6 +92,7 @@ extern int dir_notify_enable;
 /* public flags for file_system_type */
 #define FS_REQUIRES_DEV 1 
 #define FS_BINARY_MOUNTDATA 2
+#define FS_HAS_SUBTYPE 4
 #define FS_REVAL_DOT   16384   /* Check the paths ".", ".." for staleness */
 #define FS_RENAME_DOES_D_MOVE  32768   /* FS will handle d_move()
                                         * during rename() internally.
@@ -847,11 +849,6 @@ extern int fcntl_getlease(struct file *filp);
 /* fs/sync.c */
 extern int do_sync_mapping_range(struct address_space *mapping, loff_t offset,
                        loff_t endbyte, unsigned int flags);
-static inline int do_sync_file_range(struct file *file, loff_t offset,
-                       loff_t endbyte, unsigned int flags)
-{
-       return do_sync_mapping_range(file->f_mapping, offset, endbyte, flags);
-}
 
 /* fs/locks.c */
 extern void locks_init_lock(struct file_lock *);
@@ -941,6 +938,7 @@ struct super_block {
        struct list_head        s_files;
 
        struct block_device     *s_bdev;
+       struct mtd_info         *s_mtd;
        struct list_head        s_instances;
        struct quota_info       s_dquot;        /* Diskquota specific options */
 
@@ -960,6 +958,12 @@ struct super_block {
        /* Granularity of c/m/atime in ns.
           Cannot be worse than a second */
        u32                s_time_gran;
+
+       /*
+        * Filesystem subtype.  If non-empty the filesystem type field
+        * in /proc/mounts will be "type.subtype"
+        */
+       char *s_subtype;
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);
@@ -1207,6 +1211,14 @@ static inline void mark_inode_dirty_sync(struct inode *inode)
        __mark_inode_dirty(inode, I_DIRTY_SYNC);
 }
 
+/**
+ * inc_nlink - directly increment an inode's link count
+ * @inode: inode
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.  Currently,
+ * it is only here for parity with dec_nlink().
+ */
 static inline void inc_nlink(struct inode *inode)
 {
        inode->i_nlink++;
@@ -1218,11 +1230,30 @@ static inline void inode_inc_link_count(struct inode *inode)
        mark_inode_dirty(inode);
 }
 
+/**
+ * drop_nlink - directly drop an inode's link count
+ * @inode: inode
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.  In cases
+ * where we are attempting to track writes to the
+ * filesystem, a decrement to zero means an imminent
+ * write when the file is truncated and actually unlinked
+ * on the filesystem.
+ */
 static inline void drop_nlink(struct inode *inode)
 {
        inode->i_nlink--;
 }
 
+/**
+ * clear_nlink - directly zero an inode's link count
+ * @inode: inode
+ *
+ * This is a low-level filesystem helper to replace any
+ * direct filesystem manipulation of i_nlink.  See
+ * drop_nlink() for why we care about i_nlink hitting zero.
+ */
 static inline void clear_nlink(struct inode *inode)
 {
        inode->i_nlink = 0;
@@ -1735,6 +1766,8 @@ extern ssize_t generic_file_sendfile(struct file *, loff_t *, size_t, read_actor
 extern void do_generic_mapping_read(struct address_space *mapping,
                                    struct file_ra_state *, struct file *,
                                    loff_t *, read_descriptor_t *, read_actor_t);
+extern int generic_segment_checks(const struct iovec *iov,
+               unsigned long *nr_segs, size_t *count, int access_flags);
 
 /* fs/splice.c */
 extern ssize_t generic_file_splice_read(struct file *, loff_t *,