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scst_dlm: Remove support for kernel versions before 3.10

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The SCST has dropped support for kernels older than 3.10.0 (RHEL 7 / Centos 7) since SCST v3.6.
This commit is contained in:
Chesnokov Gleb
2022-01-13 17:26:37 +03:00
committed by Gleb Chesnokov
parent 488aaeed71
commit 0a1b23a453
1 changed files with 0 additions and 45 deletions
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scst/src/scst_dlm.c
-45
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@@ -1102,16 +1102,10 @@ static void scst_dlm_pre_bast(void *bastarg, int mode)
queue_work(pr_dlm->from_wq, &pr_dlm->pre_upd_work);
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
static void scst_pre_join_work(void *p)
{
struct scst_pr_dlm_data *pr_dlm = p;
#else
static void scst_pre_join_work(struct work_struct *work)
{
struct scst_pr_dlm_data *pr_dlm = container_of(work,
struct scst_pr_dlm_data, pre_join_work);
#endif
dlm_lockspace_t *ls;
mutex_lock(&pr_dlm->ls_mutex);
@@ -1125,16 +1119,10 @@ static void scst_pre_join_work(struct work_struct *work)
mutex_unlock(&pr_dlm->ls_mutex);
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
static void scst_pre_upd_work(void *p)
{
struct scst_pr_dlm_data *pr_dlm = p;
#else
static void scst_pre_upd_work(struct work_struct *work)
{
struct scst_pr_dlm_data *pr_dlm = container_of(work,
struct scst_pr_dlm_data, pre_upd_work);
#endif
dlm_lockspace_t *ls;
mutex_lock(&pr_dlm->ls_mutex);
@@ -1165,16 +1153,10 @@ static void scst_dlm_post_bast(void *bastarg, int mode)
* Note: the node that has invoked scst_trigger_lvb_update() holds PR_LOCK
* in EX mode and waits until this function has finished.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
static void scst_copy_to_dlm_work(void *p)
{
struct scst_pr_dlm_data *pr_dlm = p;
#else
static void scst_copy_to_dlm_work(struct work_struct *work)
{
struct scst_pr_dlm_data *pr_dlm = container_of(work,
struct scst_pr_dlm_data, copy_to_dlm_work);
#endif
struct scst_device *dev = pr_dlm->dev;
dlm_lockspace_t *ls;
int res;
@@ -1238,16 +1220,10 @@ unlock_ls:
* scst_pr_init_tgt_dev() and scst_pr_clear_tgt_dev() in scst_pres.c protect
* these manipulations by locking the PR data structures for writing.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
static void scst_copy_from_dlm_work(void *p)
{
struct scst_pr_dlm_data *pr_dlm = p;
#else
static void scst_copy_from_dlm_work(struct work_struct *work)
{
struct scst_pr_dlm_data *pr_dlm = container_of(work,
struct scst_pr_dlm_data, copy_from_dlm_work);
#endif
struct scst_device *dev = pr_dlm->dev;
dlm_lockspace_t *ls;
int res = -ENOENT;
@@ -1299,16 +1275,10 @@ static void scst_dlm_post_ast(void *astarg)
}
/* Tell other nodes to refresh their local state from the lock value blocks. */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
static void scst_reread_lvb_work(void *p)
{
struct scst_pr_dlm_data *pr_dlm = p;
#else
static void scst_reread_lvb_work(struct work_struct *work)
{
struct scst_pr_dlm_data *pr_dlm = container_of(work,
struct scst_pr_dlm_data, reread_lvb_work);
#endif
dlm_lockspace_t *ls;
struct scst_lksb pr_lksb;
int res;
@@ -1330,16 +1300,10 @@ unlock_ls:
}
/* Tell other nodes to update the DLM lock value blocks. */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
static void scst_lvb_upd_work(void *p)
{
struct scst_pr_dlm_data *pr_dlm = p;
#else
static void scst_lvb_upd_work(struct work_struct *work)
{
struct scst_pr_dlm_data *pr_dlm = container_of(work,
struct scst_pr_dlm_data, lvb_upd_work);
#endif
dlm_lockspace_t *ls;
struct scst_lksb lksb;
int res;
@@ -1399,21 +1363,12 @@ static int scst_pr_dlm_init(struct scst_device *dev, const char *cl_dev_id)
mutex_init(&pr_dlm->ls_cr_mutex);
mutex_init(&pr_dlm->ls_mutex);
pr_dlm->data_lksb.lksb.sb_lvbptr = pr_dlm->lvb;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
INIT_WORK(&pr_dlm->pre_join_work, scst_pre_join_work, pr_dlm);
INIT_WORK(&pr_dlm->pre_upd_work, scst_pre_upd_work, pr_dlm);
INIT_WORK(&pr_dlm->copy_from_dlm_work, scst_copy_from_dlm_work, pr_dlm);
INIT_WORK(&pr_dlm->copy_to_dlm_work, scst_copy_to_dlm_work, pr_dlm);
INIT_WORK(&pr_dlm->lvb_upd_work, scst_lvb_upd_work, pr_dlm);
INIT_WORK(&pr_dlm->reread_lvb_work, scst_reread_lvb_work, pr_dlm);
#else
INIT_WORK(&pr_dlm->pre_join_work, scst_pre_join_work);
INIT_WORK(&pr_dlm->pre_upd_work, scst_pre_upd_work);
INIT_WORK(&pr_dlm->copy_from_dlm_work, scst_copy_from_dlm_work);
INIT_WORK(&pr_dlm->copy_to_dlm_work, scst_copy_to_dlm_work);
INIT_WORK(&pr_dlm->lvb_upd_work, scst_lvb_upd_work);
INIT_WORK(&pr_dlm->reread_lvb_work, scst_reread_lvb_work);
#endif
pr_dlm->latest_lscr_attempt = jiffies - 100 * HZ;
res = -ENOMEM;