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Change KM_PUSHPAGE -> KM_SLEEP

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By marking DMU transaction processing contexts with PF_FSTRANS
we can revert the KM_PUSHPAGE -> KM_SLEEP changes.  This brings
us back in line with upstream.  In some cases this means simply
swapping the flags back.  For others fnvlist_alloc() was replaced
by nvlist_alloc(..., KM_PUSHPAGE) and must be reverted back to
fnvlist_alloc() which assumes KM_SLEEP.

The one place KM_PUSHPAGE is kept is when allocating ARC buffers
which allows us to dip in to reserved memory.  This is again the
same as upstream.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
2014-11-20 19:09:39 -05:00
parent efcd79a883
commit 79c76d5b65
65 changed files with 269 additions and 281 deletions
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module/zfs/range_tree.c
+3 -3
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@@ -132,7 +132,7 @@ range_tree_create(range_tree_ops_t *ops, void *arg, kmutex_t *lp)
{
range_tree_t *rt;
rt = kmem_zalloc(sizeof (range_tree_t), KM_PUSHPAGE);
rt = kmem_zalloc(sizeof (range_tree_t), KM_SLEEP);
avl_create(&rt->rt_root, range_tree_seg_compare,
sizeof (range_seg_t), offsetof(range_seg_t, rs_node));
@@ -221,7 +221,7 @@ range_tree_add(void *arg, uint64_t start, uint64_t size)
rs_after->rs_start = start;
rs = rs_after;
} else {
rs = kmem_cache_alloc(range_seg_cache, KM_PUSHPAGE);
rs = kmem_cache_alloc(range_seg_cache, KM_SLEEP);
rs->rs_start = start;
rs->rs_end = end;
avl_insert(&rt->rt_root, rs, where);
@@ -270,7 +270,7 @@ range_tree_remove(void *arg, uint64_t start, uint64_t size)
rt->rt_ops->rtop_remove(rt, rs, rt->rt_arg);
if (left_over && right_over) {
newseg = kmem_cache_alloc(range_seg_cache, KM_PUSHPAGE);
newseg = kmem_cache_alloc(range_seg_cache, KM_SLEEP);
newseg->rs_start = end;
newseg->rs_end = rs->rs_end;
range_tree_stat_incr(rt, newseg);