TestClearPageDirty

Name:TestClearPageDirty

Proto:static inline __attribute__((__always_inline__)) int TestClearPageDirty(struct page *page)

Type:int

Parameter:

Type	Parameter	Name
struct page *	page

318

Return st_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).

**Caller**
Name	Describe
__cancel_dirty_page	This cancels just the dirty bit on the kernel page itself, it does NOT* actually remove dirty bits on any mmap's that may be around
clear_page_dirty_for_io	Clear a page's dirty flag, while caring for dirty memory accounting.* Returns true if the page was previously dirty.* This is for preparing to put the page under writeout. We leave the page* tagged as dirty in the xarray so that a concurrent write-for-sync

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