+ block-partitions-mac-obey-the-state-limit-constraint.patch added to -mm tree

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The patch titled
     Subject: block/partitions/mac.c: obey the state->limit constraint
has been added to the -mm tree.  Its filename is
     block-partitions-mac-obey-the-state-limit-constraint.patch

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------------------------------------------------------
From: Ming Lei <ming.lei@xxxxxxxxxxxxx>
Subject: block/partitions/mac.c: obey the state->limit constraint

It isn't necessary to read the information of partitions whose number is
equal and more than state->limit since only maximum state->limit
partitions will be added inside rescan_partitions().

That is also what other kind of partitions are doing.

Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 block/partitions/mac.c |    4 ++++
 1 file changed, 4 insertions(+)

diff -puN block/partitions/mac.c~block-partitions-mac-obey-the-state-limit-constraint block/partitions/mac.c
--- a/block/partitions/mac.c~block-partitions-mac-obey-the-state-limit-constraint
+++ a/block/partitions/mac.c
@@ -63,6 +63,10 @@ int mac_partition(struct parsed_partitio
 		put_dev_sector(sect);
 		return 0;
 	}
+
+	if (blocks_in_map >= state->limit)
+		blocks_in_map = state->limit - 1;
+
 	strlcat(state->pp_buf, " [mac]", PAGE_SIZE);
 	for (slot = 1; slot <= blocks_in_map; ++slot) {
 		int pos = slot * secsize;
_

Patches currently in -mm which might be from ming.lei@xxxxxxxxxxxxx are

origin.patch
linux-next.patch
mm-teach-mm-by-current-context-info-to-not-do-i-o-during-memory-allocation.patch
pm-runtime-introduce-pm_runtime_set_memalloc_noio.patch
block-genhdc-apply-pm_runtime_set_memalloc_noio-on-block-devices.patch
net-core-apply-pm_runtime_set_memalloc_noio-on-network-devices.patch
pm-runtime-force-memory-allocation-with-no-i-o-during-runtime-pm-callbcack.patch
usb-forbid-memory-allocation-with-i-o-during-bus-reset.patch
block-partitions-mac-obey-the-state-limit-constraint.patch

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