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mm: fix exports that inadvertently make put_page() EXPORT_SYMBOL_GPL 

Commit e763848843 ("mm: introduce MEMORY_DEVICE_FS_DAX and
CONFIG_DEV_PAGEMAP_OPS") added two EXPORT_SYMBOL_GPL() symbols, but
these symbols are required by the inlined put_page(), thus accidentally
making put_page() a GPL export only.  This breaks OpenAFS (at least).

Mark them EXPORT_SYMBOL() instead.

Link: http://lkml.kernel.org/r/153128611970.2928.11310692420711601254.stgit@dwillia2-desk3.amr.corp.intel.com
Fixes: e763848843 ("mm: introduce MEMORY_DEVICE_FS_DAX and CONFIG_DEV_PAGEMAP_OPS")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Joe Gorse <jhgorse@gmail.com>
Reported-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Joe Gorse <jhgorse@gmail.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Mark Vitale <mvitale@sinenomine.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Williams 2018-07-26 16:37:22 -07:00 committed by Linus Torvalds
parent f075faa300
commit 31c5bda3a6
1 changed files with 2 additions and 2 deletions
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4
kernel/memremap.c
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@ -321,7 +321,7 @@ EXPORT_SYMBOL_GPL(get_dev_pagemap);
#ifdef CONFIG_DEV_PAGEMAP_OPS #ifdef CONFIG_DEV_PAGEMAP_OPS
DEFINE_STATIC_KEY_FALSE(devmap_managed_key); DEFINE_STATIC_KEY_FALSE(devmap_managed_key);
EXPORT_SYMBOL_GPL(devmap_managed_key); EXPORT_SYMBOL(devmap_managed_key);
static atomic_t devmap_enable; static atomic_t devmap_enable;
/* /*
@ -362,5 +362,5 @@ void __put_devmap_managed_page(struct page *page)
} else if (!count) } else if (!count)
__put_page(page); __put_page(page);
} }
EXPORT_SYMBOL_GPL(__put_devmap_managed_page); EXPORT_SYMBOL(__put_devmap_managed_page);
#endif /* CONFIG_DEV_PAGEMAP_OPS */ #endif /* CONFIG_DEV_PAGEMAP_OPS */