tag_pages_for_writeback

Name:ag_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

Proto:void tag_pages_for_writeback(struct address_space *mapping, unsigned long start, unsigned long end)

Type:void

Parameter:

Type	Parameter	Name
struct address_space *	mapping
unsigned long	start
unsigned long	end

2108

XA_STATE() - Declare an XArray operation state.*@name: Name of this operation state (usually xas).*@array: Array to operate on.*@index: Initial index of interest.* Declare and initialise an xa_state on the stack.(xas, & i_pages, start)

2109

tagged = 0

2112

xas_lock_irq( & xas)

2114

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

2115

If ++tagged % XA_CHECK_SCHED Then Continue

2118

xas_pause() - Pause a walk to drop a lock.*@xas: XArray operation state.* Some users need to pause a walk and drop the lock they're holding in* order to yield to a higher priority thread or carry out an operation* on an entry

2119

xas_unlock_irq( & xas)

2120

2121

xas_lock_irq( & xas)

2123

xas_unlock_irq( & xas)

**Caller**
Name	Describe
write_cache_pages	write_cache_pages - walk the list of dirty pages of the given address space and write all of them

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