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Code Issues Releases Activity

Remove any mention of cache (PG_CACHE) pages from the comments in

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vm_pageout_scan().  That function has not cached pages since r284376.

MFC after:	3 days
This commit is contained in:
Alan Cox 2016-07-28 22:30:48 +00:00
parent 40018b91dd
commit f095d1bbc7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=303465
1 changed files with 9 additions and 11 deletions
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20
sys/vm/vm_pageout.c
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@ -872,7 +872,7 @@ vm_pageout_clean(vm_page_t m)
* vm_pageout_scan does the dirty work for the pageout daemon.
*
* pass 0 - Update active LRU/deactivate pages
* pass 1 - Move inactive to cache or free
* pass 1 - Free inactive pages
* pass 2 - Launder dirty pages
*/
static void
@ -915,8 +915,7 @@ vm_pageout_scan(struct vm_domain *vmd, int pass)
addl_page_shortage = 0;
/*
* Calculate the number of pages we want to either free or move
* to the cache.
* Calculate the number of pages that we want to free.
*/
if (pass > 0) {
deficit = atomic_readandclear_int(&vm_pageout_deficit);
@ -943,11 +942,10 @@ vm_pageout_scan(struct vm_domain *vmd, int pass)
vnodes_skipped = 0;
/*
* Start scanning the inactive queue for pages we can move to the
* cache or free. The scan will stop when the target is reached or
* we have scanned the entire inactive queue. Note that m->act_count
* is not used to form decisions for the inactive queue, only for the
* active queue.
* Start scanning the inactive queue for pages that we can free. The
* scan will stop when we reach the target or we have scanned the
* entire queue. (Note that m->act_count is not used to make
* decisions for the inactive queue, only for the active queue.)
*/
pq = &vmd->vmd_pagequeues[PQ_INACTIVE];
maxscan = pq->pq_cnt;
@ -1170,8 +1168,8 @@ vm_pageout_scan(struct vm_domain *vmd, int pass)
#if !defined(NO_SWAPPING)
/*
* Wakeup the swapout daemon if we didn't cache or free the targeted
* number of pages.
* Wakeup the swapout daemon if we didn't free the targeted number of
* pages.
*/
if (vm_swap_enabled && page_shortage > 0)
vm_req_vmdaemon(VM_SWAP_NORMAL);
@ -1179,7 +1177,7 @@ vm_pageout_scan(struct vm_domain *vmd, int pass)
/*
* Wakeup the sync daemon if we skipped a vnode in a writeable object
* and we didn't cache or free enough pages.
* and we didn't free enough pages.
*/
if (vnodes_skipped > 0 && page_shortage > vm_cnt.v_free_target -
vm_cnt.v_free_min)