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trivial doc patch for partitions

PATCH New Martin Pool 1 participant 1 message Jul 27, 2004 VFS

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Martin Pool

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PATCH 1/1 trivial doc patch for partitions

It's slightly hard to see how these variables are used; this patch adds a short description.

I am planning to change rescan_partitions so that it allows you to change partitions on a disk that has active partitions, so long as the active partitions themselves are not changed. Would anyone object?

include/linux/fs.h +1 -0
Index: linux-2.6/include/linux/fs.h
===================================================================
@@ -354,6 +354,7 @@
 	struct block_device *	bd_contains;
 	unsigned		bd_block_size;
 	struct hd_struct *	bd_part;
+	/* number of times partitions within this device have been opened. */
 	unsigned		bd_part_count;
 	int			bd_invalidated;
 	struct gendisk *	bd_disk;
include/linux/genhd.h +2 -1
Index: linux-2.6/include/linux/genhd.h
===================================================================
@@ -82,7 +82,8 @@
 struct gendisk {
 	int major;			/* major number of driver */
 	int first_minor;
-	int minors;
+	int minors;                     /* maximum number of minors, =1 for
+                                         * disks that can't be partitioned. */
 	char disk_name[32];		/* name of major driver */
 	struct hd_struct **part;	/* [indexed by minor] */
 	struct block_device_operations *fops;
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Martin