linux/net/sunrpc
Mel Gorman a564b8f039 nfs: enable swap on NFS
Implement the new swapfile a_ops for NFS and hook up ->direct_IO.  This
will set the NFS socket to SOCK_MEMALLOC and run socket reconnect under
PF_MEMALLOC as well as reset SOCK_MEMALLOC before engaging the protocol
->connect() method.

PF_MEMALLOC should allow the allocation of struct socket and related
objects and the early (re)setting of SOCK_MEMALLOC should allow us to
receive the packets required for the TCP connection buildup.

[jlayton@redhat.com: Restore PF_MEMALLOC task flags in all cases]
[dfeng@redhat.com: Fix handling of multiple swap files]
[a.p.zijlstra@chello.nl: Original patch]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Eric Paris <eparis@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: Neil Brown <neilb@suse.de>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Xiaotian Feng <dfeng@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-31 18:42:48 -07:00
..
auth_gss SUNRPC: Add a missing spin_unlock to gss_mech_list_pseudoflavors 2012-07-17 17:02:57 -04:00
xprtrdma Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linux 2012-03-29 14:53:25 -07:00
addr.c SUNRPC: parametrize rpc_uaddr2sockaddr() by network context 2012-01-31 19:28:12 -05:00
auth_generic.c userns: Convert group_info values from gid_t to kgid_t. 2012-05-03 03:27:21 -07:00
auth_null.c SUNRPC: Move the bound cred to struct rpc_rqst 2010-08-04 08:54:09 -04:00
auth_unix.c userns: Convert group_info values from gid_t to kgid_t. 2012-05-03 03:27:21 -07:00
auth.c SUNRPC: Add rpcauth_list_flavors() 2012-07-16 15:12:15 -04:00
backchannel_rqst.c net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
bc_svc.c SUNRPC: sunrpc should not explicitly depend on NFS config options 2011-07-15 09:12:23 -04:00
cache.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
clnt.c nfs: enable swap on NFS 2012-07-31 18:42:48 -07:00
Kconfig nfs: enable swap on NFS 2012-07-31 18:42:48 -07:00
Makefile SUNRPC: sunrpc should not explicitly depend on NFS config options 2011-07-15 09:12:23 -04:00
netns.h SUNRPC: create GSS auth cache per network namespace 2012-01-31 19:28:15 -05:00
rpc_pipe.c rpc_pipefs: allow rpc_purge_list to take a NULL waitq pointer 2012-06-11 17:27:07 -04:00
rpcb_clnt.c Merge branch 'for-3.5' of git://linux-nfs.org/~bfields/linux 2012-06-01 08:32:58 -07:00
sched.c nfs: enable swap on NFS 2012-07-31 18:42:48 -07:00
socklib.c sunrpc: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:28 +08:00
stats.c SUNRPC: Use RCU to dereference the rpc_clnt.cl_xprt field 2012-03-02 15:36:38 -05:00
sunrpc_syms.c SUNRPC: register PipeFS file system after pernet sybsystem 2012-04-18 11:05:48 -04:00
sunrpc.h SUNRPC: subscribe RPC clients to pipefs notifications 2012-01-31 18:20:25 -05:00
svc_xprt.c Merge branch 'for-3.5' of git://linux-nfs.org/~bfields/linux 2012-06-01 08:32:58 -07:00
svc.c NFS client bugfixes for Linux 3.5 2012-06-15 17:37:23 -07:00
svcauth_unix.c ipv6: add ipv6_addr_hash() helper 2012-07-18 11:28:46 -07:00
svcauth.c net: sunrpc: kill unused macros 2010-12-17 15:48:21 -05:00
svcsock.c net: skb_free_datagram_locked() doesnt drop all packets 2012-06-27 15:40:57 -07:00
sysctl.c SUNRPC: make SUNPRC clients list per network namespace context 2012-01-31 18:20:25 -05:00
timer.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
xdr.c NFS client updates for Linux 3.6 2012-07-30 19:16:57 -07:00
xprt.c net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
xprtsock.c nfs: enable swap on NFS 2012-07-31 18:42:48 -07:00