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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 4/5] dm: set io restriction defaults
Date: Tue, 25 Nov 2003 16:34:13 +0000	[thread overview]
Message-ID: <20031125163412.GE524@reti> (raw)
In-Reply-To: <20031125162451.GA524@reti>

Make sure that a target has a sensible set of default io restrictions.
--- diff/drivers/md/dm-table.c	2003-11-25 15:47:38.000000000 +0000
+++ source/drivers/md/dm-table.c	2003-11-25 15:47:59.000000000 +0000
@@ -630,6 +630,16 @@
 	return 0;
 }
 
+static void set_default_limits(struct io_restrictions *rs)
+{
+	rs->max_sectors = MAX_SECTORS;
+	rs->max_phys_segments = MAX_PHYS_SEGMENTS;
+	rs->max_hw_segments = MAX_HW_SEGMENTS;
+	rs->hardsect_size = 1 << SECTOR_SHIFT;
+	rs->max_segment_size = MAX_SEGMENT_SIZE;
+	rs->seg_boundary_mask = -1;
+}
+
 int dm_table_add_target(struct dm_table *t, const char *type,
 			sector_t start, sector_t len, char *params)
 {
@@ -642,6 +652,7 @@
 
 	tgt = t->targets + t->num_targets;
 	memset(tgt, 0, sizeof(*tgt));
+	set_default_limits(&tgt->limits);
 
 	tgt->type = dm_get_target_type(type);
 	if (!tgt->type) {

  parent reply	other threads:[~2003-11-25 16:33 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 ` [Patch 1/5] dm: fix block device resizing Joe Thornber
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 ` Joe Thornber [this message]
2003-11-25 16:35 ` [Patch 5/5] dm: dm_table_event() sleep on spinlock bug Joe Thornber

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