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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/refcount.c
+2 -2
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@@ -121,7 +121,7 @@ refcount_add_many(refcount_t *rc, uint64_t number, void *holder)
int64_t count;
if (rc->rc_tracked) {
ref = kmem_cache_alloc(reference_cache, KM_PUSHPAGE);
ref = kmem_cache_alloc(reference_cache, KM_SLEEP);
ref->ref_holder = holder;
ref->ref_number = number;
}
@@ -165,7 +165,7 @@ refcount_remove_many(refcount_t *rc, uint64_t number, void *holder)
if (reference_history > 0) {
ref->ref_removed =
kmem_cache_alloc(reference_history_cache,
KM_PUSHPAGE);
KM_SLEEP);
list_insert_head(&rc->rc_removed, ref);
rc->rc_removed_count++;
if (rc->rc_removed_count > reference_history) {