From: Joe Thornber <thornber@sistina.com>
To: Joe Thornber <thornber@sistina.com>
Cc: Linux Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@zip.com.au>,
Linus Torvalds <torvalds@osdl.org>
Subject: [Patch 1/5] dm: fix block device resizing
Date: Tue, 25 Nov 2003 16:30:05 +0000 [thread overview]
Message-ID: <20031125163005.GB524@reti> (raw)
In-Reply-To: <20031125162451.GA524@reti>
When setting the size of a Device-Mapper device in the gendisk entry,
also try to set the size of the corresponding block_device entry's
inode. This is necessary to allow online device/filesystem resizing to
work correctly. [Kevin Corry]
--- diff/drivers/md/dm.c 2003-09-30 15:46:14.000000000 +0100
+++ source/drivers/md/dm.c 2003-11-25 15:36:59.000000000 +0000
@@ -666,6 +666,20 @@
up_write(&md->lock);
}
+static void __set_size(struct gendisk *disk, sector_t size)
+{
+ struct block_device *bdev;
+
+ set_capacity(disk, size);
+ bdev = bdget_disk(disk, 0);
+ if (bdev) {
+ down(&bdev->bd_inode->i_sem);
+ i_size_write(bdev->bd_inode, size << SECTOR_SHIFT);
+ up(&bdev->bd_inode->i_sem);
+ bdput(bdev);
+ }
+}
+
static int __bind(struct mapped_device *md, struct dm_table *t)
{
request_queue_t *q = md->queue;
@@ -673,7 +687,7 @@
md->map = t;
size = dm_table_get_size(t);
- set_capacity(md->disk, size);
+ __set_size(md->disk, size);
if (size == 0)
return 0;
@@ -692,7 +706,6 @@
dm_table_event_callback(md->map, NULL, NULL);
dm_table_put(md->map);
md->map = NULL;
- set_capacity(md->disk, 0);
}
/*
next prev parent reply other threads:[~2003-11-25 16:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-25 16:24 2.6.0-t10-dm1 Joe Thornber
2003-11-25 16:30 ` Joe Thornber [this message]
2003-11-25 16:31 ` [Patch 2/5] dm: remove dynamic table resizing Joe Thornber
2003-11-25 16:33 ` [Patch 3/5] dm: make v4 of the ioctl interface the default Joe Thornber
2003-11-25 16:47 ` Kevin P. Fleming
2003-11-25 17:05 ` Joe Thornber
2003-11-25 17:15 ` Kevin P. Fleming
2003-11-25 18:00 ` Joe Thornber
2003-11-25 17:29 ` Wichert Akkerman
2003-11-25 20:18 ` Alasdair G Kergon
2003-11-25 23:45 ` Adrian Bunk
2003-11-26 11:39 ` Joe Thornber
2003-11-25 17:09 ` Kevin Corry
2003-11-25 17:16 ` Kevin P. Fleming
2003-11-25 17:28 ` Kevin Corry
2003-11-25 17:20 ` Christoph Hellwig
2003-11-25 17:59 ` Joe Thornber
2003-11-25 16:34 ` [Patch 4/5] dm: set io restriction defaults Joe Thornber
2003-11-25 16:35 ` [Patch 5/5] dm: dm_table_event() sleep on spinlock bug Joe Thornber
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