patch-2.4.22 linux-2.4.22/include/linux/fs.h

• Lines: 164
• Date: 2003-08-25 04:44:44.000000000 -0700
• Orig file: linux-2.4.21/include/linux/fs.h
• Orig date: 2003-06-13 07:51:38.000000000 -0700

diff -urN linux-2.4.21/include/linux/fs.h linux-2.4.22/include/linux/fs.h
@@ -201,6 +201,7 @@
 #include <asm/byteorder.h>
 
 extern void update_atime (struct inode *);
+extern void update_mctime (struct inode *);
 #define UPDATE_ATIME(inode) update_atime (inode)
 
 extern void buffer_init(unsigned long);
@@ -221,6 +222,7 @@
 	BH_Launder,	/* 1 if we can throttle on this buffer */
 	BH_Attached,	/* 1 if b_inode_buffers is linked into a list */
 	BH_JBD,		/* 1 if it has an attached journal_head */
+	BH_Sync,	/* 1 if the buffer is a sync read */
 
 	BH_PrivateStart,/* not a state bit, but the first bit available
 			 * for private allocation by other entities
@@ -396,6 +398,8 @@
 	int (*releasepage) (struct page *, int);
 #define KERNEL_HAS_O_DIRECT /* this is for modules out of the kernel */
 	int (*direct_IO)(int, struct inode *, struct kiobuf *, unsigned long, int);
+#define KERNEL_HAS_DIRECT_FILEIO /* Unfortunate kludge due to lack of foresight */
+	int (*direct_fileIO)(int, struct file *, struct kiobuf *, unsigned long, int);
 	void (*removepage)(struct page *); /* called when page gets removed from the inode */
 };
 
@@ -455,7 +459,9 @@
 	unsigned long		i_blksize;
 	unsigned long		i_blocks;
 	unsigned long		i_version;
+	unsigned short          i_bytes;
 	struct semaphore	i_sem;
+	struct rw_semaphore	i_alloc_sem;
 	struct semaphore	i_zombie;
 	struct inode_operations	*i_op;
 	struct file_operations	*i_fop;	/* former ->i_op->default_file_ops */
@@ -515,6 +521,39 @@
 	} u;
 };
 
+static inline void inode_add_bytes(struct inode *inode, loff_t bytes)
+{
+	inode->i_blocks += bytes >> 9;
+	bytes &= 511;
+	inode->i_bytes += bytes;
+	if (inode->i_bytes >= 512) {
+		inode->i_blocks++;
+		inode->i_bytes -= 512;
+	}
+}
+
+static inline void inode_sub_bytes(struct inode *inode, loff_t bytes)
+{
+	inode->i_blocks -= bytes >> 9;
+	bytes &= 511;
+	if (inode->i_bytes < bytes) {
+		inode->i_blocks--;
+		inode->i_bytes += 512;
+	}
+	inode->i_bytes -= bytes;
+}
+
+static inline loff_t inode_get_bytes(struct inode *inode)
+{
+	return (((loff_t)inode->i_blocks) << 9) + inode->i_bytes;
+}
+
+static inline void inode_set_bytes(struct inode *inode, loff_t bytes)
+{
+	inode->i_blocks = bytes >> 9;
+	inode->i_bytes = bytes & 511;
+}
+
 struct fown_struct {
 	int pid;		/* pid or -pgrp where SIGIO should be sent */
 	uid_t uid, euid;	/* uid/euid of process setting the owner */
@@ -635,6 +674,7 @@
 extern time_t lease_get_mtime(struct inode *);
 extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
 extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
+extern void steal_locks(fl_owner_t from);
 
 struct fasync_struct {
 	int	magic;
@@ -660,20 +700,6 @@
 	int last_type;
 };
 
-#define DQUOT_USR_ENABLED	0x01		/* User diskquotas enabled */
-#define DQUOT_GRP_ENABLED	0x02		/* Group diskquotas enabled */
-
-struct quota_mount_options
-{
-	unsigned int flags;			/* Flags for diskquotas on this device */
-	struct semaphore dqio_sem;		/* lock device while I/O in progress */
-	struct semaphore dqoff_sem;		/* serialize quota_off() and quota_on() on device */
-	struct file *files[MAXQUOTAS];		/* fp's to quotafiles */
-	time_t inode_expire[MAXQUOTAS];		/* expiretime for inode-quota */
-	time_t block_expire[MAXQUOTAS];		/* expiretime for block-quota */
-	char rsquash[MAXQUOTAS];		/* for quotas threat root as any other user */
-};
-
 /*
  *	Umount options
  */
@@ -721,6 +747,7 @@
 	struct file_system_type	*s_type;
 	struct super_operations	*s_op;
 	struct dquot_operations	*dq_op;
+	struct quotactl_ops	*s_qcop;
 	unsigned long		s_flags;
 	unsigned long		s_magic;
 	struct dentry		*s_root;
@@ -735,7 +762,7 @@
 
 	struct block_device	*s_bdev;
 	struct list_head	s_instances;
-	struct quota_mount_options s_dquot;	/* Diskquota specific options */
+	struct quota_info	s_dquot;	/* Diskquota specific options */
 
 	union {
 		struct minix_sb_info	minix_sb;
@@ -959,16 +986,6 @@
 	__mark_inode_dirty(inode, I_DIRTY_PAGES);
 }
 
-struct dquot_operations {
-	void (*initialize) (struct inode *, short);
-	void (*drop) (struct inode *);
-	int (*alloc_block) (struct inode *, unsigned long, char);
-	int (*alloc_inode) (const struct inode *, unsigned long);
-	void (*free_block) (struct inode *, unsigned long);
-	void (*free_inode) (const struct inode *, unsigned long);
-	int (*transfer) (struct inode *, struct iattr *);
-};
-
 struct file_system_type {
 	const char *name;
 	int fs_flags;
@@ -1268,6 +1285,7 @@
 	return fsync_buffers_list(&inode->i_dirty_data_buffers);
 }
 extern int inode_has_buffers(struct inode *);
+extern int do_fdatasync(struct file *);
 extern int filemap_fdatasync(struct address_space *);
 extern int filemap_fdatawait(struct address_space *);
 extern void sync_supers(kdev_t dev, int wait);
@@ -1459,6 +1477,7 @@
 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
 extern int file_read_actor(read_descriptor_t * desc, struct page *page, unsigned long offset, unsigned long size);
 extern ssize_t generic_file_read(struct file *, char *, size_t, loff_t *);
+extern int precheck_file_write(struct file *, struct inode *, size_t *, loff_t *);
 extern ssize_t generic_file_write(struct file *, const char *, size_t, loff_t *);
 extern void do_generic_file_read(struct file *, loff_t *, read_descriptor_t *, read_actor_t);
 extern loff_t no_llseek(struct file *file, loff_t offset, int origin);
@@ -1523,6 +1542,9 @@
 extern int inode_change_ok(struct inode *, struct iattr *);
 extern int inode_setattr(struct inode *, struct iattr *);
 
+/* kernel/fork.c */
+extern int unshare_files(void);
+
 /*
  * Common dentry functions for inclusion in the VFS
  * or in other stackable file systems.  Some of these