centos man page for mark_buffer_dirty

MARK_BUFFER_DIRTY(9)						   The Linux VFS					      MARK_BUFFER_DIRTY(9)

NAME
       mark_buffer_dirty - mark a buffer_head as needing writeout

SYNOPSIS
       void mark_buffer_dirty(struct buffer_head * bh);

ARGUMENTS
       bh
	   the buffer_head to mark dirty

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_space's radix tree and then attach the address_space's inode to its superblock's dirty inode list.

       mark_buffer_dirty is atomic. It takes bh->b_page->mapping->private_lock, mapping->tree_lock and mapping->host->i_lock.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      MARK_BUFFER_DIRTY(9)