diff options
| author | David Hildenbrand <david@redhat.com> | 2024-08-02 18:55:20 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-02 06:26:01 +0300 |
| commit | 8710f6ed34e7bcf98971d65acfb5eaed5fc469b0 (patch) | |
| tree | 15558805b9684d74942b8c8692b3e76740661309 /include/linux/huge_mm.h | |
| parent | b1d3e9bbccb4d295fbbce38b38478ba117e875ae (diff) | |
| download | linux-8710f6ed34e7bcf98971d65acfb5eaed5fc469b0.tar.xz | |
mm/huge_memory: convert split_huge_pages_pid() from follow_page() to folio_walk
Let's remove yet another follow_page() user. Note that we have to do the
split without holding the PTL, after folio_walk_end(). We don't care
about losing the secretmem check in follow_page().
[david@redhat.com: teach can_split_folio() that we are not holding an additional reference]
Link: https://lkml.kernel.org/r/c75d1c6c-8ea6-424f-853c-1ccda6c77ba2@redhat.com
Link: https://lkml.kernel.org/r/20240802155524.517137-8-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/huge_mm.h')
| -rw-r--r-- | include/linux/huge_mm.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index e25d9ebfdf89..ce44caa40eed 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -314,7 +314,7 @@ unsigned long thp_get_unmapped_area_vmflags(struct file *filp, unsigned long add unsigned long len, unsigned long pgoff, unsigned long flags, vm_flags_t vm_flags); -bool can_split_folio(struct folio *folio, int *pextra_pins); +bool can_split_folio(struct folio *folio, int caller_pins, int *pextra_pins); int split_huge_page_to_list_to_order(struct page *page, struct list_head *list, unsigned int new_order); static inline int split_huge_page(struct page *page) @@ -470,7 +470,7 @@ thp_get_unmapped_area_vmflags(struct file *filp, unsigned long addr, } static inline bool -can_split_folio(struct folio *folio, int *pextra_pins) +can_split_folio(struct folio *folio, int caller_pins, int *pextra_pins) { return false; } |