Commit 5762bd47 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

[PATCH] dm: set io restriction defaults

From: Joe Thornber <thornber@sistina.com>

Make sure that a target has a sensible set of default io restrictions.
parent 07525f19
......@@ -630,6 +630,16 @@ static int split_args(int *argc, char ***argvp, char *input)
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 @@ int dm_table_add_target(struct dm_table *t, const char *type,
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) {
......
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