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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-08-26 13:35:58 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-09-17 17:13:34 -0700 |
| commit | fd30e9310253235e88a4eaa38fa92439b56c220e (patch) | |
| tree | eaa3c34f2c0baf84a407c92ff9d1f05b273e74fb /drivers/target/target_core_device.c | |
| parent | 93d441a888c4aefd9f37b30911f8fefa27bdfda3 (diff) | |
| download | linux-3.10-fd30e9310253235e88a4eaa38fa92439b56c220e.tar.gz linux-3.10-fd30e9310253235e88a4eaa38fa92439b56c220e.tar.bz2 linux-3.10-fd30e9310253235e88a4eaa38fa92439b56c220e.zip | |
target: Drop se_subsystem_api->[write_cache,fua_write]_emulated flags
This patch drops se_subsystem_api->[write_cache,fua_write]_emulated flags
set by viritual FILEIO/IBLOCK/RD_MCP backend drivers in favor of explict
TRANSPORT_PLUGIN_PHBA_PDEV checks to know when to fail if userspace is
attempting to set virtual emulation bits for an pSCSI (passthrough)
backend device.
Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_device.c')
| -rw-r--r-- | drivers/target/target_core_device.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 2d0353355eb..8d774da1632 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -988,8 +988,9 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) return -EINVAL; } - if (flag && dev->transport->fua_write_emulated == 0) { - pr_err("fua_write_emulated not supported\n"); + if (flag && + dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { + pr_err("emulate_fua_write not supported for pSCSI\n"); return -EINVAL; } dev->se_sub_dev->se_dev_attrib.emulate_fua_write = flag; @@ -1019,8 +1020,9 @@ int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) pr_err("Illegal value %d\n", flag); return -EINVAL; } - if (flag && dev->transport->write_cache_emulated == 0) { - pr_err("write_cache_emulated not supported\n"); + if (flag && + dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV) { + pr_err("emulate_write_cache not supported for pSCSI\n"); return -EINVAL; } dev->se_sub_dev->se_dev_attrib.emulate_write_cache = flag; |