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Index: sys/kern/subr_blist.c
===================================================================
--- sys/kern/subr_blist.c
+++ sys/kern/subr_blist.c
@@ -123,16 +123,16 @@
*/
static daddr_t blst_leaf_alloc(blmeta_t *scan, daddr_t blk, int count,
daddr_t cursor);
-static daddr_t blst_meta_alloc(blmeta_t *scan, daddr_t blk, daddr_t count,
- daddr_t radix, daddr_t cursor);
+static daddr_t blst_meta_alloc(blmeta_t *scan, daddr_t cursor, daddr_t count,
+ u_daddr_t radix);
static void blst_leaf_free(blmeta_t *scan, daddr_t relblk, int count);
static void blst_meta_free(blmeta_t *scan, daddr_t freeBlk, daddr_t count,
- daddr_t radix, daddr_t blk);
+ u_daddr_t radix);
static void blst_copy(blmeta_t *scan, daddr_t blk, daddr_t radix,
blist_t dest, daddr_t count);
static daddr_t blst_leaf_fill(blmeta_t *scan, daddr_t blk, int count);
static daddr_t blst_meta_fill(blmeta_t *scan, daddr_t allocBlk, daddr_t count,
- daddr_t radix, daddr_t blk);
+ u_daddr_t radix);
static daddr_t blst_radix_init(blmeta_t *scan, daddr_t radix, daddr_t count);
#ifndef _KERNEL
static void blst_radix_print(blmeta_t *scan, daddr_t blk, daddr_t radix,
@@ -247,8 +247,8 @@
* reduce the hint, stopping further iterations.
*/
while (count <= bl->bl_root->bm_bighint) {
- blk = blst_meta_alloc(bl->bl_root, 0, count, bl->bl_radix,
- bl->bl_cursor);
+ blk = blst_meta_alloc(bl->bl_root, bl->bl_cursor, count,
+ bl->bl_radix);
if (blk != SWAPBLK_NONE) {
bl->bl_cursor = blk + count;
return (blk);
@@ -280,7 +280,7 @@
blist_free(blist_t bl, daddr_t blkno, daddr_t count)
{
- blst_meta_free(bl->bl_root, blkno, count, bl->bl_radix, 0);
+ blst_meta_free(bl->bl_root, blkno, count, bl->bl_radix);
}
/*
@@ -293,7 +293,7 @@
blist_fill(blist_t bl, daddr_t blkno, daddr_t count)
{
- return (blst_meta_fill(bl->bl_root, blkno, count, bl->bl_radix, 0));
+ return (blst_meta_fill(bl->bl_root, blkno, count, bl->bl_radix));
}
/*
@@ -447,15 +447,14 @@
* and we have a few optimizations strewn in as well.
*/
static daddr_t
-blst_meta_alloc(blmeta_t *scan, daddr_t blk, daddr_t count, daddr_t radix,
- daddr_t cursor)
+blst_meta_alloc(blmeta_t *scan, daddr_t cursor, daddr_t count, u_daddr_t radix)
{
- daddr_t i, next_skip, r, skip;
+ daddr_t blk, i, next_skip, r, skip;
int child;
bool scan_from_start;
if (radix == BLIST_BMAP_RADIX)
- return (blst_leaf_alloc(scan, blk, count, cursor));
+ return (blst_leaf_alloc(scan, cursor, count));
if (scan->u.bmu_avail < count) {
/*
* The meta node's hint must be too large if the allocation
@@ -467,6 +466,7 @@
}
skip = radix_to_skip(radix);
next_skip = skip / BLIST_META_RADIX;
+ blk = cursor & -radix;
/*
* An ALL-FREE meta node requires special handling before allocating
@@ -505,8 +505,8 @@
/*
* The allocation might fit in the i'th subtree.
*/
- r = blst_meta_alloc(&scan[i], blk, count, radix,
- cursor > blk ? cursor : blk);
+ r = blst_meta_alloc(&scan[i],
+ cursor > blk ? cursor : blk, count, radix);
if (r != SWAPBLK_NONE) {
scan->u.bmu_avail -= count;
return (r);
@@ -574,10 +574,9 @@
* range).
*/
static void
-blst_meta_free(blmeta_t *scan, daddr_t freeBlk, daddr_t count, daddr_t radix,
- daddr_t blk)
+blst_meta_free(blmeta_t *scan, daddr_t freeBlk, daddr_t count, u_daddr_t radix)
{
- daddr_t i, next_skip, skip, v;
+ daddr_t blk, i, next_skip, skip, v;
int child;
if (scan->bm_bighint == (daddr_t)-1)
@@ -628,6 +627,7 @@
* Break the free down into its components
*/
+ blk = freeBlk & -radix;
radix /= BLIST_META_RADIX;
child = (freeBlk - blk) / radix;
@@ -637,7 +637,7 @@
v = blk + radix - freeBlk;
if (v > count)
v = count;
- blst_meta_free(&scan[i], freeBlk, v, radix, blk);
+ blst_meta_free(&scan[i], freeBlk, v, radix);
if (scan->bm_bighint < scan[i].bm_bighint)
scan->bm_bighint = scan[i].bm_bighint;
count -= v;
@@ -755,10 +755,9 @@
* number of blocks allocated by the call.
*/
static daddr_t
-blst_meta_fill(blmeta_t *scan, daddr_t allocBlk, daddr_t count, daddr_t radix,
- daddr_t blk)
+blst_meta_fill(blmeta_t *scan, daddr_t allocBlk, daddr_t count, u_daddr_t radix)
{
- daddr_t i, nblks, next_skip, skip, v;
+ daddr_t blk, i, nblks, next_skip, skip, v;
int child;
if (scan->bm_bighint == (daddr_t)-1)
@@ -783,6 +782,7 @@
}
skip = radix_to_skip(radix);
next_skip = skip / BLIST_META_RADIX;
+ blk = allocBlk & -radix;
/*
* An ALL-FREE meta node requires special handling before allocating
@@ -814,7 +814,7 @@
v = blk + radix - allocBlk;
if (v > count)
v = count;
- nblks += blst_meta_fill(&scan[i], allocBlk, v, radix, blk);
+ nblks += blst_meta_fill(&scan[i], allocBlk, v, radix);
count -= v;
allocBlk += v;
blk += radix;

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