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| author | alc <alc@FreeBSD.org> | 2008-04-06 18:09:28 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2008-04-06 18:09:28 +0000 |
| commit | 2f4904816fb159c02b0f2efb5956fa5d7d029368 (patch) | |
| tree | 166cd702c9314eb705ef67586ab9f10f438cdbe0 /sys/vm/vm_phys.c | |
| parent | 254de061dee1f05f371e55fe7d8afb56fcf9cc0d (diff) | |
| download | FreeBSD-src-2f4904816fb159c02b0f2efb5956fa5d7d029368.zip FreeBSD-src-2f4904816fb159c02b0f2efb5956fa5d7d029368.tar.gz | |
Introduce vm_reserv_reclaim_contig(). This function is used by
contigmalloc(9) as a last resort to steal pages from an inactive,
partially-used superpage reservation.
Rename vm_reserv_reclaim() to vm_reserv_reclaim_inactive() and
refactor it so that a separate subroutine is responsible for breaking
the selected reservation. This subroutine is also used by
vm_reserv_reclaim_contig().
Diffstat (limited to 'sys/vm/vm_phys.c')
| -rw-r--r-- | sys/vm/vm_phys.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/vm/vm_phys.c b/sys/vm/vm_phys.c index b477b5b..3af40cf 100644 --- a/sys/vm/vm_phys.c +++ b/sys/vm/vm_phys.c @@ -54,6 +54,7 @@ __FBSDID("$FreeBSD$"); #include <vm/vm_object.h> #include <vm/vm_page.h> #include <vm/vm_phys.h> +#include <vm/vm_reserv.h> struct vm_freelist { struct pglist pl; @@ -607,6 +608,9 @@ vm_phys_alloc_contig(unsigned long npages, vm_paddr_t low, vm_paddr_t high, /* Compute the queue that is the best fit for npages. */ for (order = 0; (1 << order) < npages; order++); mtx_lock(&vm_page_queue_free_mtx); +#if VM_NRESERVLEVEL > 0 +retry: +#endif for (flind = 0; flind < vm_nfreelists; flind++) { for (oind = min(order, VM_NFREEORDER - 1); oind < VM_NFREEORDER; oind++) { for (pind = 0; pind < VM_NFREEPOOL; pind++) { @@ -664,6 +668,10 @@ vm_phys_alloc_contig(unsigned long npages, vm_paddr_t low, vm_paddr_t high, } } } +#if VM_NRESERVLEVEL > 0 + if (vm_reserv_reclaim_contig(size, low, high, alignment, boundary)) + goto retry; +#endif mtx_unlock(&vm_page_queue_free_mtx); return (NULL); done: |
