+ mm-unexport-folio_memcg_unlock.patch added to -mm tree

+ mm-unexport-folio_memcg_unlock.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm: unexport folio_memcg_{,un}lock
has been added to the -mm tree.  Its filename is
     mm-unexport-folio_memcg_unlock.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-unexport-folio_memcg_unlock.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-unexport-folio_memcg_unlock.patch

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------------------------------------------------------
From: Christoph Hellwig <hch@lst.de>
Subject: mm: unexport folio_memcg_{,un}lock

Patch series "unexport memcg locking helpers".

Neither the old page-based nor the new folio-based memcg locking helpers
are used in modular code at all, so drop the exports.


This patch (of 2):

folio_memcg_{,un}lock are only used in built-in core mm code.

Link: https://lkml.kernel.org/r/20210820095815.445392-1-hch@lst.de
Link: https://lkml.kernel.org/r/20210820095815.445392-2-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memcontrol.c |    2 --
 1 file changed, 2 deletions(-)

--- a/mm/memcontrol.c~mm-unexport-folio_memcg_unlock
+++ a/mm/memcontrol.c
@@ -2014,7 +2014,6 @@ again:
 	memcg->move_lock_task = current;
 	memcg->move_lock_flags = flags;
 }
-EXPORT_SYMBOL(folio_memcg_lock);
 
 void lock_page_memcg(struct page *page)
 {
@@ -2048,7 +2047,6 @@ void folio_memcg_unlock(struct folio *fo
 {
 	__folio_memcg_unlock(folio_memcg(folio));
 }
-EXPORT_SYMBOL(folio_memcg_unlock);
 
 void unlock_page_memcg(struct page *page)
 {
_

Patches currently in -mm which might be from hch@lst.de are

mmc-jz4740-remove-the-flush_kernel_dcache_page-call-in-jz4740_mmc_read_data.patch
mmc-mmc_spi-replace-flush_kernel_dcache_page-with-flush_dcache_page.patch
scatterlist-replace-flush_kernel_dcache_page-with-flush_dcache_page.patch
mm-remove-flush_kernel_dcache_page.patch
proc-stop-using-seq_get_buf-in-proc_task_name.patch
mm-unexport-folio_memcg_unlock.patch
mm-unexport-unlock_page_memcg.patch