hyperv/ic: Cleanup timesync channel callback.
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Authored by sepherosa_gmail.com on Sep 1 2016, 1:57 PM.

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howard0su_gmail.com
honzhan_microsoft.com
decui_microsoft.com
delphij
royger

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rS305281: hyperv/ic: Cleanup timesync channel callback.

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rS FreeBSD src repository - subversion

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sepherosa_gmail.com updated this revision to Diff 19933.Sep 1 2016, 1:57 PM

sepherosa_gmail.com retitled this revision from to hyperv/ic: Cleanup timesync channel callback..

sepherosa_gmail.com updated this object.

sepherosa_gmail.com edited the test plan for this revision. (Show Details)

sepherosa_gmail.com added reviewers: delphij, royger, decui_microsoft.com, honzhan_microsoft.com, howard0su_gmail.com.

Closed by commit rS305281: hyperv/ic: Cleanup timesync channel callback. (authored by sephe). · Explain WhySep 2 2016, 6:23 AM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

head/

sys/

dev/

hyperv/

utilities/

hv_timesync.c

238 lines

vmbus_icreg.h

20 lines

Diff 19971

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head/sys/dev/hyperv/utilities/hv_timesync.c

	Show First 20 Lines • Show All 4,701 Lines • ▼ Show 20 Lines
	{			{
	vm_page_t m;			vm_page_t m;
	vm_object_t object;			vm_object_t object;
	struct buf *bp;			struct buf *bp;
	struct mount *mp;			struct mount *mp;
	daddr_t lbn, lbnp;			daddr_t lbn, lbnp;
	vm_ooffset_t la, lb, poff, poffe;			vm_ooffset_t la, lb, poff, poffe;
	long bsize;			long bsize;
	int bo_bs, br_flags, error, i;			int bo_bs, br_flags, error, i, pgsin, pgsin_a, pgsin_b;
	bool redo, lpart;			bool redo, lpart;

	object = vp->v_object;			object = vp->v_object;
	mp = vp->v_mount;			mp = vp->v_mount;
	la = IDX_TO_OFF(ma[count - 1]->pindex);			la = IDX_TO_OFF(ma[count - 1]->pindex);
	if (la >= object->un_pager.vnp.vnp_size)			if (la >= object->un_pager.vnp.vnp_size)
	return (VM_PAGER_BAD);			return (VM_PAGER_BAD);
	lpart = la + PAGE_SIZE > object->un_pager.vnp.vnp_size;			lpart = la + PAGE_SIZE > object->un_pager.vnp.vnp_size;
	bo_bs = get_blksize(vp, get_lblkno(vp, IDX_TO_OFF(ma[0]->pindex)));			bo_bs = get_blksize(vp, get_lblkno(vp, IDX_TO_OFF(ma[0]->pindex)));
	if (rbehind != NULL) {
				/*
				* Calculate read-ahead, behind and total pages.
				*/
				pgsin = count;
	lb = IDX_TO_OFF(ma[0]->pindex);			lb = IDX_TO_OFF(ma[0]->pindex);
	*rbehind = OFF_TO_IDX(lb - rounddown2(lb, bo_bs));			pgsin_b = OFF_TO_IDX(lb - rounddown2(lb, bo_bs));
	}			pgsin += pgsin_b;
	if (rahead != NULL) {			if (rbehind != NULL)
	*rahead = OFF_TO_IDX(roundup2(la, bo_bs) - la);			*rbehind = pgsin_b;
	if (la + IDX_TO_OFF(*rahead) >= object->un_pager.vnp.vnp_size) {			pgsin_a = OFF_TO_IDX(roundup2(la, bo_bs) - la);
	*rahead = OFF_TO_IDX(roundup2(object->un_pager.			if (la + IDX_TO_OFF(pgsin_a) >= object->un_pager.vnp.vnp_size)
	vnp.vnp_size, PAGE_SIZE) - la);			pgsin_a = OFF_TO_IDX(roundup2(object->un_pager.vnp.vnp_size,
	}			PAGE_SIZE) - la);
	}			pgsin += pgsin_a;
				if (rahead != NULL)
				*rahead = pgsin_a;
				PCPU_INC(cnt.v_vnodein);
				PCPU_ADD(cnt.v_vnodepgsin, pgsin);

	br_flags = (mp != NULL && (mp->mnt_kern_flag & MNTK_UNMAPPED_BUFS)			br_flags = (mp != NULL && (mp->mnt_kern_flag & MNTK_UNMAPPED_BUFS)
	!= 0) ? GB_UNMAPPED : 0;			!= 0) ? GB_UNMAPPED : 0;
	VM_OBJECT_WLOCK(object);			VM_OBJECT_WLOCK(object);
	again:			again:
	for (i = 0; i < count; i++)			for (i = 0; i < count; i++)
	vm_page_busy_downgrade(ma[i]);			vm_page_busy_downgrade(ma[i]);
	VM_OBJECT_WUNLOCK(object);			VM_OBJECT_WUNLOCK(object);

	▲ Show 20 Lines • Show All 216 Lines • Show Last 20 Lines