diff options
author | kmacy <kmacy@FreeBSD.org> | 2009-05-19 01:14:37 +0000 |
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committer | kmacy <kmacy@FreeBSD.org> | 2009-05-19 01:14:37 +0000 |
commit | 972fc5b174672a4410c60cf16dd81214d25f42db (patch) | |
tree | d88b5b2d04167415e7a8549e825ffadd24aea201 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs | |
parent | d66d1a14b11d1c5353f59e84f12cbe2ed4b5702c (diff) | |
download | FreeBSD-src-972fc5b174672a4410c60cf16dd81214d25f42db.zip FreeBSD-src-972fc5b174672a4410c60cf16dd81214d25f42db.tar.gz |
- back out direct map hack
- it is no longer needed
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c | 22 | ||||
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c | 93 |
2 files changed, 12 insertions, 103 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c index 8711355..a3e2580 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c @@ -172,7 +172,6 @@ uint64_t zfs_arc_max; uint64_t zfs_arc_min; uint64_t zfs_arc_meta_limit = 0; int zfs_mdcomp_disable = 0; -int arc_large_memory_enabled = 0; TUNABLE_QUAD("vfs.zfs.arc_max", &zfs_arc_max); TUNABLE_QUAD("vfs.zfs.arc_min", &zfs_arc_min); @@ -3430,13 +3429,17 @@ arc_init(void) arc_min_prefetch_lifespan = 1 * hz; /* Start out with 1/8 of all memory */ -#if defined(_KERNEL) && (__amd64__) - arc_c = physmem*PAGE_SIZE / 8; - if (physmem*PAGE_SIZE > kmem_size() && (physmem > (1UL<<31))) - arc_large_memory_enabled = 1; -#else arc_c = kmem_size() / 8; -#endif +#if 0 +#ifdef _KERNEL + /* + * On architectures where the physical memory can be larger + * than the addressable space (intel in 32-bit mode), we may + * need to limit the cache to 1/8 of VM size. + */ + arc_c = MIN(arc_c, vmem_size(heap_arena, VMEM_ALLOC | VMEM_FREE) / 8); +#endif +#endif /* set min cache to 1/32 of all memory, or 16MB, whichever is more */ arc_c_min = MAX(arc_c / 4, 64<<18); /* set max to 1/2 of all memory, or all but 1GB, whichever is more */ @@ -3450,13 +3453,8 @@ arc_init(void) * Allow the tunables to override our calculations if they are * reasonable (ie. over 16MB) */ -#if defined(_KERNEL) && defined(__amd64__) - if (zfs_arc_max >= 64<<18) - arc_c_max = zfs_arc_max; -#else if (zfs_arc_max >= 64<<18 && zfs_arc_max < kmem_size()) arc_c_max = zfs_arc_max; -#endif if (zfs_arc_min >= 64<<18 && zfs_arc_min <= arc_c_max) arc_c_min = zfs_arc_min; #endif diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c index 6ac642e..4650d42 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c @@ -33,9 +33,6 @@ #include <sys/zio_compress.h> #include <sys/zio_checksum.h> -#if defined(_KERNEL) && defined(__amd64__) -#include <vm/vm_phys.h> -#endif /* * ========================================================================== * I/O priority table @@ -88,8 +85,6 @@ extern vmem_t *zio_alloc_arena; #define IO_IS_ALLOCATING(zio) \ ((zio)->io_orig_pipeline & (1U << ZIO_STAGE_DVA_ALLOCATE)) -extern int arc_large_memory_enabled; - void zio_init(void) { @@ -210,80 +205,6 @@ zio_buf_alloc(size_t size) #endif } -#if defined(_KERNEL) && defined(__amd64__) -extern int vm_contig_launder(int queue); - -static void * -zio_large_malloc(size_t size) -{ - void *ret; - vm_page_t pages; - unsigned long npgs; - int actl, actmax, inactl, inactmax, tries; - int flags = M_WAITOK; - vm_paddr_t low = (1UL<<29); /* leave lower 512MB untouched */ - vm_paddr_t high = ~(vm_paddr_t)0; - unsigned long alignment = 1; - unsigned long boundary = 0; - - npgs = round_page(size) >> PAGE_SHIFT; - tries = 0; -retry: - pages = vm_phys_alloc_contig(npgs, low, high, alignment, boundary); - if (pages == NULL) { - if (tries < ((flags & M_NOWAIT) != 0 ? 1 : 3)) { - vm_page_lock_queues(); - inactl = 0; - inactmax = tries < 1 ? 0 : cnt.v_inactive_count; - actl = 0; - actmax = tries < 2 ? 0 : cnt.v_active_count; -again: - if (inactl < inactmax && - vm_contig_launder(PQ_INACTIVE)) { - inactl++; - goto again; - } - if (actl < actmax && - vm_contig_launder(PQ_ACTIVE)) { - actl++; - goto again; - } - vm_page_unlock_queues(); - tries++; - goto retry; - } - - ret = NULL; - } else { - int i; - - vm_page_lock_queues(); - for (i = 0; i < npgs; i++) - vm_page_wire(&pages[i]); - vm_page_unlock_queues(); - - return (void *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(pages)); - } - return (ret); -} - -static void -zio_large_free(void *buf, size_t size) -{ - int npgs = round_page(size) >> PAGE_SHIFT; - int i; - vm_page_t m; - - m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)buf)); - vm_page_lock_queues(); - for (i = 0; i < npgs; i++, m++) { - vm_page_unwire(m, 0); - vm_page_free(m); - } - vm_page_unlock_queues(); -} -#endif - /* * Use zio_data_buf_alloc to allocate data. The data will not appear in a * crashdump if the kernel panics. This exists so that we will limit the amount @@ -300,12 +221,7 @@ zio_data_buf_alloc(size_t size) return (kmem_cache_alloc(zio_data_buf_cache[c], KM_PUSHPAGE)); #else -#if defined(_KERNEL) && defined(__amd64__) - if (arc_large_memory_enabled && (size > PAGE_SIZE)) - return (zio_large_malloc(size)); - else -#endif - return (kmem_alloc(size, KM_SLEEP)); + return (kmem_alloc(size, KM_SLEEP)); #endif } @@ -333,12 +249,7 @@ zio_data_buf_free(void *buf, size_t size) kmem_cache_free(zio_data_buf_cache[c], buf); #else -#if defined (_KERNEL) && defined(__amd64__) - if (arc_large_memory_enabled && (size > PAGE_SIZE)) - zio_large_free(buf, size); - else -#endif - kmem_free(buf, size); + kmem_free(buf, size); #endif } |