NAME¶

balance_dirty_pages_ratelimited_nr - balance dirty memory state

SYNOPSIS¶

void balance_dirty_pages_ratelimited_nr(struct address_space * mapping, unsigned long nr_pages_dirtied);

ARGUMENTS¶

mapping

nr_pages_dirtied

DESCRIPTION¶

Processes which are dirtying memory should call in here once for each page which was newly dirtied. The function will periodically check the system´s dirty state and will initiate writeback if needed.

On really big machines, get_writeback_state is expensive, so try to avoid calling it too often (ratelimiting). But once we´re over the dirty memory limit we decrease the ratelimiting by a lot, to prevent individual processes from overshooting the limit by (ratelimit_pages) each.

COPYRIGHT¶