函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\hugetlb.c Create Date:2022-07-27 17:00:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：huge_add_to_page_cache

函数原型：int huge_add_to_page_cache(struct page *page, struct address_space *mapping, unsigned long idx)

返回类型：int

参数：

类型参数名称
struct page *page
struct address_space *mapping
unsigned longidx
3768  inode等于host
3769  h等于hstate_inode(inode)
3770  err等于Like add_to_page_cache_locked, but used to add newly allocated pages:* the page is new, so we can just run __SetPageLocked() against it.
3772  如果err则返回:err
3774  Private page markings that may be used by the filesystem that owns the page* for its own purposes.* - PG_private and PG_private_2 cause releasepage() and co to be invoked
3780  Dirty a page
3782  加自旋锁
3783  i_blocks加等于blocks_per_huge_page(h)
3784  自旋锁解锁
3785  返回:0
调用者
名称描述
hugetlb_no_page
hugetlb_mcopy_atomic_pteUsed by userfaultfd UFFDIO_COPY. Based on mcopy_atomic_pte with* modifications for huge pages.