Change KM_PUSHPAGE -> KM_SLEEP

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 <[email protected]>

1 files changed, 12 insertions, 12 deletions

diff --git a/module/zfs/spa_config.c b/module/zfs/spa_config.c
index 818a4308f..ed2344cf3 100644
--- a/module/zfs/spa_config.c
+++ b/module/zfs/spa_config.c
@@ -87,7 +87,7 @@ spa_config_load(void)
 	/*
 	 * Open the configuration file.
 	 */
-	pathname = kmem_alloc(MAXPATHLEN, KM_PUSHPAGE);
+	pathname = kmem_alloc(MAXPATHLEN, KM_SLEEP);
 
 	(void) snprintf(pathname, MAXPATHLEN, "%s%s",
 	    (rootdir != NULL) ? "./" : "", spa_config_path);
@@ -102,7 +102,7 @@ spa_config_load(void)
 	if (kobj_get_filesize(file, &fsize) != 0)
 		goto out;
 
-	buf = kmem_alloc(fsize, KM_PUSHPAGE);
+	buf = kmem_alloc(fsize, KM_SLEEP);
 
 	/*
 	 * Read the nvlist from the file.
@@ -113,7 +113,7 @@ spa_config_load(void)
 	/*
 	 * Unpack the nvlist.
 	 */
-	if (nvlist_unpack(buf, fsize, &nvlist, KM_PUSHPAGE) != 0)
+	if (nvlist_unpack(buf, fsize, &nvlist, KM_SLEEP) != 0)
 		goto out;
 
 	/*
@@ -165,11 +165,11 @@ spa_config_write(spa_config_dirent_t *dp, nvlist_t *nvl)
 	 */
 	VERIFY(nvlist_size(nvl, &buflen, NV_ENCODE_XDR) == 0);
 
-	buf = kmem_alloc(buflen, KM_PUSHPAGE);
-	temp = kmem_zalloc(MAXPATHLEN, KM_PUSHPAGE);
+	buf = kmem_alloc(buflen, KM_SLEEP);
+	temp = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
 
 	VERIFY(nvlist_pack(nvl, &buf, &buflen, NV_ENCODE_XDR,
-	    KM_PUSHPAGE) == 0);
+	    KM_SLEEP) == 0);
 
 	/*
 	 * Write the configuration to disk.  We need to do the traditional
@@ -252,7 +252,7 @@ spa_config_sync(spa_t *target, boolean_t removing, boolean_t postsysevent)
 
 			if (nvl == NULL)
 				VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME,
-				    KM_PUSHPAGE) == 0);
+				    KM_SLEEP) == 0);
 
 			if (spa->spa_import_flags & ZFS_IMPORT_TEMP_NAME) {
 				VERIFY0(nvlist_lookup_string(spa->spa_config,
@@ -301,7 +301,7 @@ spa_all_configs(uint64_t *generation)
 	if (*generation == spa_config_generation)
 		return (NULL);
 
-	VERIFY(nvlist_alloc(&pools, NV_UNIQUE_NAME, KM_PUSHPAGE) == 0);
+	VERIFY(nvlist_alloc(&pools, NV_UNIQUE_NAME, KM_SLEEP) == 0);
 
 	mutex_enter(&spa_namespace_lock);
 	while ((spa = spa_next(spa)) != NULL) {
@@ -376,7 +376,7 @@ spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats)
 	} else
 		pool_name = spa_name(spa);
 
-	VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, KM_PUSHPAGE) == 0);
+	VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, KM_SLEEP) == 0);
 
 	VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_VERSION,
 	    spa_version(spa)) == 0);
@@ -463,21 +463,21 @@ spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats)
 		ddt_stat_t *dds;
 		ddt_object_t *ddo;
 
-		ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_PUSHPAGE);
+		ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP);
 		ddt_get_dedup_histogram(spa, ddh);
 		VERIFY(nvlist_add_uint64_array(config,
 		    ZPOOL_CONFIG_DDT_HISTOGRAM,
 		    (uint64_t *)ddh, sizeof (*ddh) / sizeof (uint64_t)) == 0);
 		kmem_free(ddh, sizeof (ddt_histogram_t));
 
-		ddo = kmem_zalloc(sizeof (ddt_object_t), KM_PUSHPAGE);
+		ddo = kmem_zalloc(sizeof (ddt_object_t), KM_SLEEP);
 		ddt_get_dedup_object_stats(spa, ddo);
 		VERIFY(nvlist_add_uint64_array(config,
 		    ZPOOL_CONFIG_DDT_OBJ_STATS,
 		    (uint64_t *)ddo, sizeof (*ddo) / sizeof (uint64_t)) == 0);
 		kmem_free(ddo, sizeof (ddt_object_t));
 
-		dds = kmem_zalloc(sizeof (ddt_stat_t), KM_PUSHPAGE);
+		dds = kmem_zalloc(sizeof (ddt_stat_t), KM_SLEEP);
 		ddt_get_dedup_stats(spa, dds);
 		VERIFY(nvlist_add_uint64_array(config,
 		    ZPOOL_CONFIG_DDT_STATS,