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Move querying for atomic device params before cache start

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This needs to be done in caller application context. As part of asynchronous
management API rework, volume_open callback was moved to kernel worker thread
context. To work around this, atomic parameters are now read before cache
attach/load/probe and provided to bottom volume via volume params.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
Adam Rutkowski
2019-04-01 17:23:34 -04:00
parent 21abb82081
commit 9670adf751
8 changed files with 37 additions and 23 deletions
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4
modules/cas_cache/service_ui_ioctl.c
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@@ -131,10 +131,12 @@ long cas_service_ioctl_ctrl(struct file *filp, unsigned int cmd,
struct kcas_start_cache *cmd_info;
struct ocf_mngt_cache_config cfg;
struct ocf_mngt_cache_device_config device_cfg;
struct atomic_dev_params atomic_params = { 0 };
GET_CMD_INFO(cmd_info, arg);
retval = cache_mng_prepare_cache_cfg(&cfg, &device_cfg, cmd_info);
retval = cache_mng_prepare_cache_cfg(&cfg, &device_cfg,
&atomic_params, cmd_info);
if (retval)
RETURN_CMD_RESULT(cmd_info, arg, retval);