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authorRoland McGrath <roland@gnu.org>1999-05-01 06:09:04 +0000
committerRoland McGrath <roland@gnu.org>1999-05-01 06:09:04 +0000
commitd9df4e1dc3b77167ee4b78064845fbd81632de9e (patch)
tree355638ae1e3a98e77c6fbeb024d467ecbfe7f3c0 /linux
parentac553887fcb56654edbcc86d0346f798719b2600 (diff)
1999-05-01 Mark Kettenis <kettenis@gnu.org>
* linux/dev/glue/block.c (device_get_status): Always set status_count to DEV_GET_STATUS_COUNT if flavor is DEV_GET_SIZE.
Diffstat (limited to 'linux')
-rw-r--r--linux/dev/glue/block.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/linux/dev/glue/block.c b/linux/dev/glue/block.c
index 9d6bd6d..7900e72 100644
--- a/linux/dev/glue/block.c
+++ b/linux/dev/glue/block.c
@@ -1595,8 +1595,6 @@ device_get_status (void *d, dev_flavor_t flavor, dev_status_t status,
switch (flavor)
{
case DEV_GET_SIZE:
- if (*status_count != DEV_GET_SIZE_COUNT)
- return D_INVALID_SIZE;
if (disk_major (MAJOR (bd->dev)))
{
assert (bd->ds->gd);
@@ -1626,6 +1624,12 @@ device_get_status (void *d, dev_flavor_t flavor, dev_status_t status,
the driver, but a lot of user level code assumes the sector
size to be 512. */
status[DEV_GET_SIZE_RECORD_SIZE] = 512;
+ /* Always return DEV_GET_SIZE_COUNT. This is what all native
+ Mach drivers do, and makes it possible to detect the absence
+ of the call by setting it to a different value on input. MiG
+ makes sure that we will never return more integers than the
+ user asked for. */
+ *status_count = DEV_GET_SIZE_COUNT;
break;
case V_GETPARMS: