diff options
| author |   Andy Grover <agrover@redhat.com> | 2015-03-31 15:04:37 -0700 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2015-04-01 21:42:51 -0700 |
| commit | 86d65dc4fe74d5b3228fe13c5eff0b10ae6808eb (patch) | |
| tree | 383ed332796de3fa1b6c5cc9fbec0a497e7e2fff /drivers/target | |
| parent | target: do not reject FUA CDBs when write cache is enabled but emulate_write_cache is 0 (diff) | |
| download | linux-dev-86d65dc4fe74d5b3228fe13c5eff0b10ae6808eb.tar.xz linux-dev-86d65dc4fe74d5b3228fe13c5eff0b10ae6808eb.zip | |
target: Allow userspace to write 1 to attrib/emulate_fua_write
Before 4.0, reading attrib/emulate_fua_write has returned 1. Saved
configs created on a pre-4.0 kernel will try to write that back when
restoring LIO configuration. This should succeed with no effect,
and issue a warning.
See https://bugzilla.redhat.com/show_bug.cgi?id=1206184
Reported-by: Yanko Kaneti <yaneti@declera.com>
Reported-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_device.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 79b4ec3ca2db..7faa6aef9a4d 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -781,8 +781,8 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) } if (flag && dev->transport->get_write_cache) { - pr_err("emulate_fua_write not supported for this device\n"); - return -EINVAL; + pr_warn("emulate_fua_write not supported for this device, ignoring\n"); + return 0; } if (dev->export_count) { pr_err("emulate_fua_write cannot be changed with active" |