Revision 64165b1affc5bc16231ac971e66aae7d68d57f2c authored by Hugh Dickins on 19 April 2019, 00:50:09 UTC, committed by Linus Torvalds on 19 April 2019, 16:46:04 UTC
The old try_to_unuse() implementation was driven by find_next_to_unuse(), which terminated as soon as all the swap had been freed. Add inuse_pages checks now (alongside signal_pending()) to stop scanning mms and swap_map once finished. The same ought to be done in shmem_unuse() too, but never was before, and needs a different interface: so leave it as is for now. Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1904081258200.1523@eggly.anvils Fixes: b56a2d8af914 ("mm: rid swapoff of quadratic complexity") Signed-off-by: Hugh Dickins <hughd@google.com> Cc: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca> Cc: Huang Ying <ying.huang@intel.com> Cc: Kelley Nielsen <kelleynnn@gmail.com> Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Cc: Rik van Riel <riel@surriel.com> Cc: Vineeth Pillai <vpillai@digitalocean.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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wq.c
#include "edac_module.h"
static struct workqueue_struct *wq;
bool edac_queue_work(struct delayed_work *work, unsigned long delay)
{
return queue_delayed_work(wq, work, delay);
}
EXPORT_SYMBOL_GPL(edac_queue_work);
bool edac_mod_work(struct delayed_work *work, unsigned long delay)
{
return mod_delayed_work(wq, work, delay);
}
EXPORT_SYMBOL_GPL(edac_mod_work);
bool edac_stop_work(struct delayed_work *work)
{
bool ret;
ret = cancel_delayed_work_sync(work);
flush_workqueue(wq);
return ret;
}
EXPORT_SYMBOL_GPL(edac_stop_work);
int edac_workqueue_setup(void)
{
wq = alloc_ordered_workqueue("edac-poller", WQ_MEM_RECLAIM);
if (!wq)
return -ENODEV;
else
return 0;
}
void edac_workqueue_teardown(void)
{
flush_workqueue(wq);
destroy_workqueue(wq);
wq = NULL;
}
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