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break up fs/devices.c

PATCH New Brian Gerst 1 participant 1 message Nov 18, 2002

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Brian Gerst

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#0 lore raw

PATCH 1/1 break up fs/devices.c

This patch breaks up and removes fs/devices.c:
Character device functions -> char_dev.c
init_special_inode() -> inode.c
kdevname() -> libfs.c

--
Brian Gerst

fs/Makefile +1 -1
diff -urN -X scripts/dontdiff linux-2.5.47-bk5/fs/Makefile linux/fs/Makefile
@@ -8,7 +8,7 @@
 export-objs :=	open.o dcache.o buffer.o bio.o inode.o dquot.o mpage.o aio.o \
                 fcntl.o read_write.o dcookies.o mbcache.o posix_acl.o xattr_acl.o
 
-obj-y :=	open.o read_write.o devices.o file_table.o buffer.o \
+obj-y :=	open.o read_write.o file_table.o buffer.o \
 		bio.o super.o block_dev.o char_dev.o stat.o exec.o pipe.o \
 		namei.o fcntl.o ioctl.o readdir.o select.o fifo.o locks.o \
 		dcache.o inode.o attr.o bad_inode.o file.o dnotify.o \
fs/char_dev.c +164 -0

173 lines not on this page · raw message

fs/devices.c +0 -221

221 lines not on this page · raw message

fs/inode.c +27 -0
diff -urN -X scripts/dontdiff linux-2.5.47-bk5/fs/inode.c linux/fs/inode.c
@@ -1244,3 +1244,30 @@
 
 	set_shrinker(DEFAULT_SEEKS, shrink_icache_memory);
 }
+
+static int sock_no_open(struct inode *irrelevant, struct file *dontcare)
+{
+	return -ENXIO;
+}
+
+static struct file_operations bad_sock_fops = {
+	.open		= sock_no_open
+};
+
+void init_special_inode(struct inode *inode, umode_t mode, int rdev)
+{
+	inode->i_mode = mode;
+	if (S_ISCHR(mode)) {
+		inode->i_fop = &def_chr_fops;
+		inode->i_rdev = to_kdev_t(rdev);
+		inode->i_cdev = cdget(rdev);
+	} else if (S_ISBLK(mode)) {
+		inode->i_fop = &def_blk_fops;
+		inode->i_rdev = to_kdev_t(rdev);
+	} else if (S_ISFIFO(mode))
+		inode->i_fop = &def_fifo_fops;
+	else if (S_ISSOCK(mode))
+		inode->i_fop = &bad_sock_fops;
+	else
+		printk(KERN_DEBUG "init_special_inode: bogus i_mode (%o)\n", mode);
+}
fs/libfs.c +11 -0
diff -urN -X scripts/dontdiff linux-2.5.47-bk5/fs/libfs.c linux/fs/libfs.c
@@ -323,3 +323,14 @@
 	set_page_dirty(page);
 	return 0;
 }
+
+/*
+ * Print device name (in decimal, hexadecimal or symbolic)
+ * Note: returns pointer to static data!
+ */
+const char * kdevname(kdev_t dev)
+{
+	static char buffer[32];
+	sprintf(buffer, "%02x:%02x", major(dev), minor(dev));
+	return buffer;
+}
fs/proc/proc_misc.c +4 -2
diff -urN -X scripts/dontdiff linux-2.5.47-bk5/fs/proc/proc_misc.c linux/fs/proc/proc_misc.c
@@ -57,7 +57,8 @@
  */
 extern int get_hardware_list(char *);
 extern int get_stram_list(char *);
-extern int get_device_list(char *);
+extern int get_chrdev_list(char *);
+extern int get_blkdev_list(char *);
 extern int get_filesystem_list(char *);
 extern int get_exec_domain_list(char *);
 extern int get_dma_list(char *);

@@ -376,7 +377,8 @@
 static int devices_read_proc(char *page, char **start, off_t off,
 				 int count, int *eof, void *data)
 {
-	int len = get_device_list(page);
+	int len = get_chrdev_list(page);
+	len += get_blkdev_list(page+len);
 	return proc_calc_metrics(page, start, off, count, eof, len);
 }
include/linux/fs.h +1 -0
diff -urN -X scripts/dontdiff linux-2.5.47-bk5/include/linux/fs.h linux/include/linux/fs.h
@@ -1097,6 +1097,7 @@
 extern int blkdev_close(struct inode *, struct file *);
 extern struct file_operations def_blk_fops;
 extern struct address_space_operations def_blk_aops;
+extern struct file_operations def_chr_fops;
 extern struct file_operations def_fifo_fops;
 extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long);
 extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long);