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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
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/dsl_userhold.c
+9 -11
View File
@@ -166,8 +166,7 @@ dsl_dataset_user_hold_sync_one_impl(nvlist_t *tmpholds, dsl_dataset_t *ds,
(u_longlong_t)ds->ds_object);
if (nvlist_lookup_nvlist(tmpholds, name, &tags) != 0) {
VERIFY0(nvlist_alloc(&tags, NV_UNIQUE_NAME,
KM_PUSHPAGE));
tags = fnvlist_alloc();
fnvlist_add_boolean(tags, htag);
fnvlist_add_nvlist(tmpholds, name, tags);
fnvlist_free(tags);
@@ -226,7 +225,7 @@ dsl_onexit_hold_cleanup(spa_t *spa, nvlist_t *holds, minor_t minor)
}
ASSERT(spa != NULL);
ca = kmem_alloc(sizeof (*ca), KM_PUSHPAGE);
ca = kmem_alloc(sizeof (*ca), KM_SLEEP);
(void) strlcpy(ca->zhca_spaname, spa_name(spa),
sizeof (ca->zhca_spaname));
@@ -243,7 +242,7 @@ dsl_dataset_user_hold_sync_one(dsl_dataset_t *ds, const char *htag,
nvlist_t *tmpholds;
if (minor != 0)
VERIFY0(nvlist_alloc(&tmpholds, NV_UNIQUE_NAME, KM_PUSHPAGE));
tmpholds = fnvlist_alloc();
else
tmpholds = NULL;
dsl_dataset_user_hold_sync_one_impl(tmpholds, ds, htag, minor, now, tx);
@@ -260,7 +259,7 @@ dsl_dataset_user_hold_sync(void *arg, dmu_tx_t *tx)
uint64_t now = gethrestime_sec();
if (dduha->dduha_minor != 0)
VERIFY0(nvlist_alloc(&tmpholds, NV_UNIQUE_NAME, KM_PUSHPAGE));
tmpholds = fnvlist_alloc();
else
tmpholds = NULL;
for (pair = nvlist_next_nvpair(dduha->dduha_chkholds, NULL);
@@ -315,8 +314,7 @@ dsl_dataset_user_hold(nvlist_t *holds, minor_t cleanup_minor, nvlist_t *errlist)
return (0);
dduha.dduha_holds = holds;
VERIFY0(nvlist_alloc(&dduha.dduha_chkholds, NV_UNIQUE_NAME,
KM_PUSHPAGE));
dduha.dduha_chkholds = fnvlist_alloc();
dduha.dduha_errlist = errlist;
dduha.dduha_minor = cleanup_minor;
@@ -365,7 +363,7 @@ dsl_dataset_user_release_check_one(dsl_dataset_user_release_arg_t *ddura,
numholds = 0;
mos = ds->ds_dir->dd_pool->dp_meta_objset;
zapobj = ds->ds_phys->ds_userrefs_obj;
VERIFY0(nvlist_alloc(&holds_found, NV_UNIQUE_NAME, KM_PUSHPAGE));
VERIFY0(nvlist_alloc(&holds_found, NV_UNIQUE_NAME, KM_SLEEP));
for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
pair = nvlist_next_nvpair(holds, pair)) {
@@ -605,9 +603,9 @@ dsl_dataset_user_release_impl(nvlist_t *holds, nvlist_t *errlist,
ddura.ddura_holds = holds;
ddura.ddura_errlist = errlist;
VERIFY0(nvlist_alloc(&ddura.ddura_todelete, NV_UNIQUE_NAME,
KM_PUSHPAGE));
KM_SLEEP));
VERIFY0(nvlist_alloc(&ddura.ddura_chkholds, NV_UNIQUE_NAME,
KM_PUSHPAGE));
KM_SLEEP));
error = dsl_sync_task(pool, dsl_dataset_user_release_check,
dsl_dataset_user_release_sync, &ddura, 0);
@@ -657,7 +655,7 @@ dsl_dataset_get_holds(const char *dsname, nvlist_t *nvl)
zap_attribute_t *za;
zap_cursor_t zc;
za = kmem_alloc(sizeof (zap_attribute_t), KM_PUSHPAGE);
za = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);
for (zap_cursor_init(&zc, ds->ds_dir->dd_pool->dp_meta_objset,
ds->ds_phys->ds_userrefs_obj);
zap_cursor_retrieve(&zc, za) == 0;