diff options
| author | peter <peter@FreeBSD.org> | 1999-04-06 03:04:47 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 1999-04-06 03:04:47 +0000 |
| commit | 399ad295b1b01c91382db700938b3501b56980ce (patch) | |
| tree | 63b275efeecbd9f1c29dee55608bf3d12dec1e77 /sys/kern/kern_physio.c | |
| parent | 8cc7f5626955ccd3a683d4c44a63c9f6019a23cd (diff) | |
| download | FreeBSD-src-399ad295b1b01c91382db700938b3501b56980ce.zip FreeBSD-src-399ad295b1b01c91382db700938b3501b56980ce.tar.gz | |
Use the reference counted PHOLD()/PRELE() rather than P_PHYSIO.
Diffstat (limited to 'sys/kern/kern_physio.c')
| -rw-r--r-- | sys/kern/kern_physio.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/sys/kern/kern_physio.c b/sys/kern/kern_physio.c index ad63a98..268a0bf 100644 --- a/sys/kern/kern_physio.c +++ b/sys/kern/kern_physio.c @@ -16,7 +16,7 @@ * 4. Modifications may be freely made to this file if the above conditions * are met. * - * $Id: kern_physio.c,v 1.29 1998/10/25 17:44:51 phk Exp $ + * $Id: kern_physio.c,v 1.30 1999/01/21 08:29:04 dillon Exp $ */ #include <sys/param.h> @@ -49,10 +49,10 @@ physio(strategy, bp, dev, rw, minp, uio) int bp_alloc = (bp == 0); struct buf *bpa; -/* - * keep the process from being swapped - */ - curproc->p_flag |= P_PHYSIO; + /* + * Keep the process UPAGES from being swapped. (XXX for performance?) + */ + PHOLD(curproc); /* create and build a buffer header for a transfer */ bpa = (struct buf *)phygetvpbuf(dev, uio->uio_resid); @@ -155,10 +155,10 @@ doerror: wakeup((caddr_t)bp); } } -/* - * allow the process to be swapped - */ - curproc->p_flag &= ~P_PHYSIO; + /* + * Allow the process UPAGES to be swapped again. + */ + PRELE(curproc); return (error); } |
