函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\xarray.c Create Date:2022-07-27 07:10:43
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：xas_set_mark() - Sets the mark on this entry and its parents.*@xas: XArray operation state.*@mark: Mark number.* Sets the specified mark on this entry, and walks up the tree setting it* on all the ancestor entries

函数原型：void xas_set_mark(const struct xa_state *xas, xa_mark_t mark)

返回类型：void

参数：

类型参数名称
const struct xa_state *xas
xa_mark_tmark
872  node等于xa_node
873  offset等于xa_offset
875  如果xas_invalid() - Is the xas in a retry or error state?*@xas: XArray operation state.* Return: %true if the xas cannot be used for operations.则返回
878  当node循环
879  如果rns true if the bit was set 则返回
881  offset等于Slot offset in parent
882  node等于Private
885  如果非xa_marked() - Inquire whether any entry in this array has a mark set*@xa: Array*@mark: Mark value* Context: Any context.* Return: %true if any entry has this mark set.则xa_mark_set(xa, mark)
调用者
名称描述
xas_init_marksxas_init_marks() - Initialise all marks for the entry*@xas: Array operations state
__xa_set_mark__xa_set_mark() - Set this mark on this entry while locked.*@xa: XArray.*@index: Index of entry.*@mark: Mark number.* Attempting to set a mark on a %NULL entry does not succeed.* Context: Any context. Expects xa_lock to be held on entry.
ida_freeda_free() - Release an allocated ID.*@ida: IDA handle.*@id: Previously allocated ID.* Context: Any context.
__test_set_page_writeback
memfd_tag_pins
dax_insert_pfn_mkwritedax_insert_pfn_mkwrite - insert PTE or PMD entry into page tables*@vmf: The description of the fault*@pfn: PFN to insert*@order: Order of entry to insert.* This function inserts a writeable PTE or PMD entry into the page tables* for an mmaped DAX file
tag_pages_for_writebackag_pages_for_writeback - tag pages to be written by write_cache_pages*@mapping: address space structure to write*@start: starting page index*@end: ending page index (inclusive)* This function scans the page range from @start to @end (inclusive) and tags
dax_insert_entryBy this point grab_mapping_entry() has ensured that we have a locked entry* of the appropriate size so we don't have to worry about downgrading PMDs to* PTEs