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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/ddt.c
+4 -4
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@@ -517,7 +517,7 @@ ddt_get_dedup_stats(spa_t *spa, ddt_stat_t *dds_total)
{
ddt_histogram_t *ddh_total;
ddh_total = kmem_zalloc(sizeof (ddt_histogram_t), KM_PUSHPAGE);
ddh_total = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP);
ddt_get_dedup_histogram(spa, ddh_total);
ddt_histogram_stat(dds_total, ddh_total);
kmem_free(ddh_total, sizeof (ddt_histogram_t));
@@ -685,7 +685,7 @@ ddt_alloc(const ddt_key_t *ddk)
{
ddt_entry_t *dde;
dde = kmem_cache_alloc(ddt_entry_cache, KM_PUSHPAGE);
dde = kmem_cache_alloc(ddt_entry_cache, KM_SLEEP);
bzero(dde, sizeof (ddt_entry_t));
cv_init(&dde->dde_cv, NULL, CV_DEFAULT, NULL);
@@ -834,7 +834,7 @@ ddt_table_alloc(spa_t *spa, enum zio_checksum c)
{
ddt_t *ddt;
ddt = kmem_cache_alloc(ddt_cache, KM_PUSHPAGE);
ddt = kmem_cache_alloc(ddt_cache, KM_SLEEP);
bzero(ddt, sizeof (ddt_t));
mutex_init(&ddt->ddt_lock, NULL, MUTEX_DEFAULT, NULL);
@@ -937,7 +937,7 @@ ddt_class_contains(spa_t *spa, enum ddt_class max_class, const blkptr_t *bp)
return (B_TRUE);
ddt = spa->spa_ddt[BP_GET_CHECKSUM(bp)];
dde = kmem_cache_alloc(ddt_entry_cache, KM_PUSHPAGE);
dde = kmem_cache_alloc(ddt_entry_cache, KM_SLEEP);
ddt_key_fill(&(dde->dde_key), bp);