Mel Gorman 0614002bb5 netvm: propagate page->pfmemalloc from skb_alloc_page to skb ... The skb->pfmemalloc flag gets set to true iff during the slab allocation of data in __alloc_skb that the the PFMEMALLOC reserves were used. If page splitting is used, it is possible that pages will be allocated from the PFMEMALLOC reserve without propagating this information to the skb. This patch propagates page->pfmemalloc from pages allocated for fragments to the skb. It works by reintroducing and expanding the skb_alloc_page() API to take an skb. If the page was allocated from pfmemalloc reserves, it is automatically copied. If the driver allocates the page before the skb, it should call skb_propagate_pfmemalloc() after the skb is allocated to ensure the flag is copied properly. Failure to do so is not critical. The resulting driver may perform slower if it is used for swap-over-NBD or swap-over-NFS but it should not result in failure. [davem@davemloft.net: API rename and consistency] Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: David S. Miller <davem@davemloft.net> Cc: Neil Brown <neilb@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Eric B Munson <emunson@mgebm.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Mel Gorman <mgorman@suse.de> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-07-31 18:42:46 -07:00
..
cxgb	Sweep away N/A fw_version dustbunnies from the .get_drvinfo routine of a number of drivers	2011-11-22 16:43:32 -05:00
cxgb3	cxgb3: Set vlan_feature on net_device	2012-07-19 10:48:00 -07:00
cxgb4	netvm: propagate page->pfmemalloc from skb_alloc_page to skb	2012-07-31 18:42:46 -07:00
cxgb4vf	netvm: propagate page->pfmemalloc from skb_alloc_page to skb	2012-07-31 18:42:46 -07:00
Kconfig	drivers/net/ethernet/*: Enabled vendor Kconfig options	2011-08-27 00:58:56 -07:00
Makefile