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mm: add kernel-doc comment for free_pgd_range()

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Provide kernel-doc for free_pgd_range() so it's easier to understand what
the function does and how it is used.

Link: https://lkml.kernel.org/r/20250325181325.5774-1-soumish.das@gmail.com
Signed-off-by: SoumishDas <soumish.das@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SoumishDas
2025-03-25 23:43:25 +05:30
committed by Andrew Morton
parent ec9827cd28
commit f4d1c32489
1 changed files with 11 additions and 2 deletions
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13
mm/memory.c
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@@ -278,8 +278,17 @@ static inline void free_p4d_range(struct mmu_gather *tlb, pgd_t *pgd,
p4d_free_tlb(tlb, p4d, start);
}
/*
* This function frees user-level page tables of a process.
/**
* free_pgd_range - Unmap and free page tables in the range
* @tlb: the mmu_gather containing pending TLB flush info
* @addr: virtual address start
* @end: virtual address end
* @floor: lowest address boundary
* @ceiling: highest address boundary
*
* This function tears down all user-level page tables in the
* specified virtual address range [@addr..@end). It is part of
* the memory unmap flow.
*/
void free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,