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mm: Rename pmd_read_atomic()

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There's no point in having the identical routines for PTE/PMD have
different names.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221022114424.841277397%40infradead.org
This commit is contained in:
Peter Zijlstra 2020-11-26 17:20:28 +01:00 • committed by Dave Hansen
parent 6ca297d478
commit dab6e71742
7 changed files with 9 additions and 14 deletions
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9
include/linux/pgtable.h
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@ -1352,11 +1352,6 @@ static inline int pud_trans_unstable(pud_t *pud)
#endif
}
static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
{
return pmdp_get_lockless(pmdp);
}
#ifndef arch_needs_pgtable_deposit
#define arch_needs_pgtable_deposit() (false)
#endif
@ -1383,13 +1378,13 @@ static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
*/
static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd)
{
pmd_t pmdval = pmd_read_atomic(pmd);
pmd_t pmdval = pmdp_get_lockless(pmd);
/*
* The barrier will stabilize the pmdval in a register or on
* the stack so that it will stop changing under the code.
*
* When CONFIG_TRANSPARENT_HUGEPAGE=y on x86 32bit PAE,
* pmd_read_atomic is allowed to return a not atomic pmdval
* pmdp_get_lockless is allowed to return a not atomic pmdval
* (for example pointing to an hugepage that has never been
* mapped in the pmd). The below checks will only care about
* the low part of the pmd with 32bit PAE x86 anyway, with the