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scst/include/backport.h: Add an alloc_workqueue() backport

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8130 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-04-02 04:09:54 +00:00
parent e1de99f312
commit ef1b78ba49
1 changed files with 17 additions and 0 deletions
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17
scst/include/backport.h
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@@ -37,6 +37,7 @@
#include <linux/stddef.h> /* sizeof_field() */
#include <linux/timer.h>
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
#include <linux/writeback.h> /* sync_page_range() */
#include <rdma/ib_verbs.h>
#include <scsi/scsi_cmnd.h> /* struct scsi_cmnd */
@@ -1456,6 +1457,22 @@ static inline void *vzalloc(unsigned long size)
}
#endif
/* <linux/workqueue.h> */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
/*
* See also commit d320c03830b1 ("workqueue: s/__create_workqueue()/
* alloc_workqueue()/, and add system workqueues") # v2.6.36.
*/
static inline struct workqueue_struct *alloc_workqueue(const char *fmt,
unsigned int flags,
int max_active, ...)
{
WARN_ON_ONCE(flags | max_active);
return create_workqueue(fmt);
}
#endif
/* <scsi/scsi_cmnd.h> */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 24) || \