On Tue, Jun 29, 2010 at 12:34:47PM +0100, Mel Gorman wrote: > As only kswapd and memcg are writing back pages, there should be no > danger of overflowing the stack. Allow the writing back of dirty pages > in btrfs from the VM. > > Signed-off-by: Mel Gorman <mel@xxxxxxxxx> Signed-off-by: Chris Mason <chris.mason@xxxxxxxxxx> But, this is only the metadata writepage. fs/btrfs/inode.c has another one for data pages. (just look for PF_MEMALLOC). -chris -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>