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yaml
---
r: 89719
b: refs/heads/master
c: 2889887
h: refs/heads/master
i:
  89717: 7be7a34
  89715: 6d5bf18
  89711: d985e59
v: v3
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FUJITA Tomonori authored and James Bottomley committed Apr 7, 2008
1 parent 577466f commit 7f1c163
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Showing 2 changed files with 18 additions and 28 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f58b0efbf49ec54c82b8904c64a6498f829e7544
refs/heads/master: 28898873b0049d4271c0ff3eb57eb329bbc4d9df
44 changes: 17 additions & 27 deletions trunk/drivers/scsi/scsi_debug.c
Original file line number Diff line number Diff line change
Expand Up @@ -823,6 +823,14 @@ static int resp_start_stop(struct scsi_cmnd * scp,
return 0;
}

static sector_t get_sdebug_capacity(void)
{
if (scsi_debug_virtual_gb > 0)
return 2048 * 1024 * scsi_debug_virtual_gb;
else
return sdebug_store_sectors;
}

#define SDEBUG_READCAP_ARR_SZ 8
static int resp_readcap(struct scsi_cmnd * scp,
struct sdebug_dev_info * devip)
Expand All @@ -834,11 +842,7 @@ static int resp_readcap(struct scsi_cmnd * scp,
if ((errsts = check_readiness(scp, 1, devip)))
return errsts;
/* following just in case virtual_gb changed */
if (scsi_debug_virtual_gb > 0) {
sdebug_capacity = 2048 * 1024;
sdebug_capacity *= scsi_debug_virtual_gb;
} else
sdebug_capacity = sdebug_store_sectors;
sdebug_capacity = get_sdebug_capacity();
memset(arr, 0, SDEBUG_READCAP_ARR_SZ);
if (sdebug_capacity < 0xffffffff) {
capac = (unsigned int)sdebug_capacity - 1;
Expand Down Expand Up @@ -871,11 +875,7 @@ static int resp_readcap16(struct scsi_cmnd * scp,
alloc_len = ((cmd[10] << 24) + (cmd[11] << 16) + (cmd[12] << 8)
+ cmd[13]);
/* following just in case virtual_gb changed */
if (scsi_debug_virtual_gb > 0) {
sdebug_capacity = 2048 * 1024;
sdebug_capacity *= scsi_debug_virtual_gb;
} else
sdebug_capacity = sdebug_store_sectors;
sdebug_capacity = get_sdebug_capacity();
memset(arr, 0, SDEBUG_READCAP16_ARR_SZ);
capac = sdebug_capacity - 1;
for (k = 0; k < 8; ++k, capac >>= 8)
Expand Down Expand Up @@ -1169,13 +1169,9 @@ static int resp_mode_sense(struct scsi_cmnd * scp, int target,
offset = 8;
}
ap = arr + offset;
if ((bd_len > 0) && (0 == sdebug_capacity)) {
if (scsi_debug_virtual_gb > 0) {
sdebug_capacity = 2048 * 1024;
sdebug_capacity *= scsi_debug_virtual_gb;
} else
sdebug_capacity = sdebug_store_sectors;
}
if ((bd_len > 0) && (!sdebug_capacity))
sdebug_capacity = get_sdebug_capacity();

if (8 == bd_len) {
if (sdebug_capacity > 0xfffffffe) {
ap[0] = 0xff;
Expand Down Expand Up @@ -2392,11 +2388,9 @@ static ssize_t sdebug_virtual_gb_store(struct device_driver * ddp,

if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
scsi_debug_virtual_gb = n;
if (scsi_debug_virtual_gb > 0) {
sdebug_capacity = 2048 * 1024;
sdebug_capacity *= scsi_debug_virtual_gb;
} else
sdebug_capacity = sdebug_store_sectors;

sdebug_capacity = get_sdebug_capacity();

return count;
}
return -EINVAL;
Expand Down Expand Up @@ -2507,11 +2501,7 @@ static int __init scsi_debug_init(void)
scsi_debug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */
sz = (unsigned int)scsi_debug_dev_size_mb * 1048576;
sdebug_store_sectors = sz / SECT_SIZE;
if (scsi_debug_virtual_gb > 0) {
sdebug_capacity = 2048 * 1024;
sdebug_capacity *= scsi_debug_virtual_gb;
} else
sdebug_capacity = sdebug_store_sectors;
sdebug_capacity = get_sdebug_capacity();

/* play around with geometry, don't waste too much on track 0 */
sdebug_heads = 8;
Expand Down

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