Attachment 7432 Details for Bug 16122 – file.diff

[patch] file.diff

file.diff (text/plain), 1.41 KB, created by Havard Eidnes on 2000-01-14 12:10:00 UTC

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Creator: Havard Eidnes

Created: 2000-01-14 12:10:00 UTC

Size: 1.41 KB

patch

obsolete

>--- /sys/kern/vfs_aio.c.dist	Sun Aug 29 18:26:12 1999
>+++ /sys/kern/vfs_aio.c	Thu Jan 13 14:24:10 2000
>@@ -618,44 +618,49 @@
> 	 * We manage to create only one VM space for all AIOD processes.
> 	 * The VM space for the first AIOD created becomes the shared VM
> 	 * space for all of them.  We add an additional reference count,
> 	 * even for the first AIOD, so the address space does not go away,
> 	 * and we continue to use that original VM space even if the first
> 	 * AIOD exits.
> 	 */
> 	if ((aiovm = aiovmspace) == NULL) {
> 		aiovmspace = myvm;
> 		myvm->vm_refcnt++;
> 		/*
> 		 * Remove userland cruft from address space.
> 		 */
> 		if (myvm->vm_shm)
> 			shmexit(mycp);
> 		pmap_remove_pages(&myvm->vm_pmap, 0, USRSTACK);
> 		vm_map_remove(&myvm->vm_map, 0, USRSTACK);
> 		myvm->vm_tsize = 0;
> 		myvm->vm_dsize = 0;
> 		myvm->vm_ssize = 0;
> 	} else {
> 		aiovm->vm_refcnt++;
>+		/*
>+		 * Remove userland cruft from address space.
>+		 */
>+		if (myvm->vm_shm)
>+			shmexit(mycp);
> 		mycp->p_vmspace = aiovm;
> 		pmap_activate(mycp);
> 		vmspace_free(myvm);
> 		myvm = aiovm;
> 	}
> 
> 	if (mycp->p_textvp) {
> 		vrele(mycp->p_textvp);
> 		mycp->p_textvp = NULL;
> 	}
> 
> 	/*
> 	 * Allocate and ready the aio control info.  There is one
> 	 * aiop structure per daemon.
> 	 */
> 	aiop = zalloc(aiop_zone);
> 	aiop->aioproc = mycp;
> 	aiop->aioprocflags |= AIOP_FREE;
> 	TAILQ_INIT(&aiop->jobtorun);
> 
> 	/*
> 	 * Place thread (lightweight process) onto the AIO free thread list

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Attachments on bug 16122: 7432