mark_buffer_dirty - mark a buffer_head as needing writeout
2. SYNOPSIS ▲
void mark_buffer_dirty(struct buffer_head * bh );
3. ARGUMENTS ▲
the buffer_head to mark dirty
4. DESCRIPTION ▲
mark_buffer_dirty will set the dirty bit against the buffer, then set its backing page dirty, then tag the page as dirty in its address_spaceAqs radix tree and then attach the address_spaceAqs inode to its superblockAqs dirty inode list.
mark_buffer_dirty is atomic. It takes bh->b_page->mapping->private_lock, mapping->tree_lock and mapping->host->i_lock.
5. COPYRIGHT ▲