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- make intent behind skip check clearer

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- protect pmap_ipi with spinlock_enter when resizing tte_hash
This commit is contained in:
Kip Macy 2006-12-16 02:41:05 +00:00
parent 5bd2c4e059
commit d8b5b86300
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=165268
1 changed files with 5 additions and 3 deletions
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8
sys/sun4v/sun4v/pmap.c
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@ -658,7 +658,8 @@ pmap_bootstrap(vm_offset_t ekva)
* Don't shuffle unless we have a full 256M page in the range
* our kernel malloc appears to be horribly brittle
*/
if ((phys_avail[j + 1] - phys_avail[j]) < PAGE_SIZE_4M*62)
if ((phys_avail[j + 1] - phys_avail[j]) <
(PAGE_SIZE_256M - nucleus_memory))
goto skipshuffle;
for (i = j, k = 0; phys_avail[i] != 0; k++, i++)
@ -2163,13 +2164,14 @@ static void
pmap_tte_hash_resize(pmap_t pmap)
{
tte_hash_t old_th = pmap->pm_hash;
pmap->pm_hash = tte_hash_resize(pmap->pm_hash);
spinlock_enter();
if (curthread->td_proc->p_numthreads != 1)
pmap_ipi(pmap, tl_ttehashupdate, pmap->pm_context, pmap->pm_hashscratch);
pmap->pm_hashscratch = tte_hash_set_scratchpad_user(pmap->pm_hash, pmap->pm_context);
spinlock_exit();
tte_hash_destroy(old_th);
}