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| author | Ryan Roberts <ryan.roberts@arm.com> | 2024-02-26 15:03:20 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-05 04:01:18 +0300 |
| commit | 912609e96cd728766373d84903f12a6d836de518 (patch) | |
| tree | 4b98392ee5d2629685c82e7d7c7ac99628252aba /arch/arm64/mm | |
| parent | ff0b5905a9c9712f36fb7f9dd1be17564483b5d4 (diff) | |
| download | linux-912609e96cd728766373d84903f12a6d836de518.tar.xz | |
arm64/mm: export contpte symbols only to GPL users
Patch series "Address some contpte nits".
These 2 patches address some nits raised by Catalin late in the review cycle for
my contpte series [1].
[1] https://lore.kernel.org/linux-mm/20240215103205.2607016-1-ryan.roberts@arm.com/
This patch (of 2):
The contpte symbols must be exported since some of the public inline
ptep_* APIs are called from modules and these inlines now call the contpte
functions. Originally they were exported as EXPORT_SYMBOL() for fear of
breaking out-of-tree modules. But we subsequently concluded that
EXPORT_SYMBOL_GPL() should be safe since these functions are deeply core
mm routines, and any module operating at this level is not going to be
able to survive on EXPORT_SYMBOL alone.
Link: https://lkml.kernel.org/r/20240226120321.1055731-1-ryan.roberts@arm.com
Link: https://lore.kernel.org/linux-mm/f9fc2b31-11cb-4969-8961-9c89fea41b74@nvidia.com/
Link: https://lkml.kernel.org/r/20240226120321.1055731-2-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/contpte.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/arch/arm64/mm/contpte.c b/arch/arm64/mm/contpte.c index 16788f07716d..be0a226c4ff9 100644 --- a/arch/arm64/mm/contpte.c +++ b/arch/arm64/mm/contpte.c @@ -135,7 +135,7 @@ void __contpte_try_fold(struct mm_struct *mm, unsigned long addr, pte = pte_mkcont(pte); contpte_convert(mm, addr, orig_ptep, pte); } -EXPORT_SYMBOL(__contpte_try_fold); +EXPORT_SYMBOL_GPL(__contpte_try_fold); void __contpte_try_unfold(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) @@ -150,7 +150,7 @@ void __contpte_try_unfold(struct mm_struct *mm, unsigned long addr, pte = pte_mknoncont(pte); contpte_convert(mm, addr, ptep, pte); } -EXPORT_SYMBOL(__contpte_try_unfold); +EXPORT_SYMBOL_GPL(__contpte_try_unfold); pte_t contpte_ptep_get(pte_t *ptep, pte_t orig_pte) { @@ -178,7 +178,7 @@ pte_t contpte_ptep_get(pte_t *ptep, pte_t orig_pte) return orig_pte; } -EXPORT_SYMBOL(contpte_ptep_get); +EXPORT_SYMBOL_GPL(contpte_ptep_get); pte_t contpte_ptep_get_lockless(pte_t *orig_ptep) { @@ -231,7 +231,7 @@ retry: return orig_pte; } -EXPORT_SYMBOL(contpte_ptep_get_lockless); +EXPORT_SYMBOL_GPL(contpte_ptep_get_lockless); void contpte_set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte, unsigned int nr) @@ -274,7 +274,7 @@ void contpte_set_ptes(struct mm_struct *mm, unsigned long addr, } while (addr != end); } -EXPORT_SYMBOL(contpte_set_ptes); +EXPORT_SYMBOL_GPL(contpte_set_ptes); void contpte_clear_full_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned int nr, int full) @@ -282,7 +282,7 @@ void contpte_clear_full_ptes(struct mm_struct *mm, unsigned long addr, contpte_try_unfold_partial(mm, addr, ptep, nr); __clear_full_ptes(mm, addr, ptep, nr, full); } -EXPORT_SYMBOL(contpte_clear_full_ptes); +EXPORT_SYMBOL_GPL(contpte_clear_full_ptes); pte_t contpte_get_and_clear_full_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep, @@ -291,7 +291,7 @@ pte_t contpte_get_and_clear_full_ptes(struct mm_struct *mm, contpte_try_unfold_partial(mm, addr, ptep, nr); return __get_and_clear_full_ptes(mm, addr, ptep, nr, full); } -EXPORT_SYMBOL(contpte_get_and_clear_full_ptes); +EXPORT_SYMBOL_GPL(contpte_get_and_clear_full_ptes); int contpte_ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) @@ -316,7 +316,7 @@ int contpte_ptep_test_and_clear_young(struct vm_area_struct *vma, return young; } -EXPORT_SYMBOL(contpte_ptep_test_and_clear_young); +EXPORT_SYMBOL_GPL(contpte_ptep_test_and_clear_young); int contpte_ptep_clear_flush_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) @@ -337,7 +337,7 @@ int contpte_ptep_clear_flush_young(struct vm_area_struct *vma, return young; } -EXPORT_SYMBOL(contpte_ptep_clear_flush_young); +EXPORT_SYMBOL_GPL(contpte_ptep_clear_flush_young); void contpte_wrprotect_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned int nr) @@ -355,7 +355,7 @@ void contpte_wrprotect_ptes(struct mm_struct *mm, unsigned long addr, contpte_try_unfold_partial(mm, addr, ptep, nr); __wrprotect_ptes(mm, addr, ptep, nr); } -EXPORT_SYMBOL(contpte_wrprotect_ptes); +EXPORT_SYMBOL_GPL(contpte_wrprotect_ptes); int contpte_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, @@ -401,4 +401,4 @@ int contpte_ptep_set_access_flags(struct vm_area_struct *vma, return 1; } -EXPORT_SYMBOL(contpte_ptep_set_access_flags); +EXPORT_SYMBOL_GPL(contpte_ptep_set_access_flags); |