writeback_inodes_wb

Name:writeback_inodes_wb

Proto:static long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages, enum wb_reason reason)

Type:long

Parameter:

Type	Parameter	Name
struct bdi_writeback *	wb
long	nr_pages
enum wb_reason	reason

1803

struct wb_writeback_work work = {nr_pages = nr_pages, sync_mode = Don't wait on anything , range_cyclic = 1, why was writeback initiated? = reason, }

1811

blk_start_plug( & plug)

1812

spin_lock( & protects the b_* lists )

1813

If list_empty - tests whether a list is empty*@head: the list to test. Then Queue all expired dirty inodes for io, eldest first.* Before* newly dirtied b_dirty b_io b_more_io* =============> gf edc BA* After* newly dirtied b_dirty b_io b_more_io* =============> g fBAedc* |* +--> dequeue for IO

1815

__writeback_inodes_wb(wb, & work)

1816

spin_unlock( & protects the b_* lists )

1817

blk_finish_plug( & plug)

1819

Return nr_pages - nr_pages

**Caller**
Name	Describe
wb_workfn	Handle writeback of dirty data for the device backed by this bdi. Also* reschedules periodically and does kupdated style flushing.

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