Function report |
Source Code:mm\memcontrol.c |
Create Date:2022-07-28 16:14:14 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:mem_cgroup_commit_charge - commit a page charge*@page: page to charge*@memcg: memcg to charge the page to*@lrucare: page might be on LRU already*@compound: charge the page as compound or small page* Finalize a charge transaction started by
Proto:void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg, bool lrucare, bool compound)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct page * | page | |
struct mem_cgroup * | memcg | |
bool | lrucare | |
bool | compound |
6410 | nr_pages = If compound Then hpage_nr_pages(page) Else 1 |
6413 | VM_BUG_ON_PAGE(PageLRU(page) && !lrucare, page) |
6415 | If mem_cgroup_disabled() Then Return |
6422 | If Not memcg Then Return |
6425 | commit_charge(page, memcg, lrucare) |
6427 | local_irq_disable() |
6432 | If Whether legacy memory+swap accounting is active && PageSwapCache(page) Then |
6433 | swp_entry_t entry = {val = page_private(page)} |
Name | Describe |
---|---|
wp_page_copy | Handle the case of a page which we actually need to copy to a new page.* Called with mmap_sem locked and the old page referenced, but* without the ptl held.* High level logic flow:* - Allocate a page, copy the content of the old page to the new one. |
do_swap_page | We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults), and pte mapped but not yet locked.* We return with pte unmapped and unlocked.* We return with the mmap_sem locked or unlocked in the same cases |
do_anonymous_page | We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults), and pte mapped but not yet locked.* We return with mmap_sem still held, but pte unmapped and unlocked. |
alloc_set_pte | alloc_set_pte - setup new PTE entry for given page and add reverse page* mapping |
unuse_pte | No need to decide whether this PTE shares the swap entry with others,* just let do_wp_page work it out if a write is requested later - to* force COW, vm_page_prot omits write permission from any private vma. |
__do_huge_pmd_anonymous_page | |
do_huge_pmd_wp_page_fallback | |
do_huge_pmd_wp_page | |
collapse_huge_page | |
mcopy_atomic_pte |
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