a564b8f039
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>
60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
config SUNRPC
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tristate
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config SUNRPC_GSS
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tristate
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config SUNRPC_BACKCHANNEL
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bool
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depends on SUNRPC
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config SUNRPC_XPRT_RDMA
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tristate
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depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL
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default SUNRPC && INFINIBAND
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help
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This option allows the NFS client and server to support
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an RDMA-enabled transport.
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To compile RPC client RDMA transport support as a module,
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choose M here: the module will be called xprtrdma.
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If unsure, say N.
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config SUNRPC_SWAP
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bool
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depends on SUNRPC
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select NETVM
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config RPCSEC_GSS_KRB5
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tristate "Secure RPC: Kerberos V mechanism"
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depends on SUNRPC && CRYPTO
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depends on CRYPTO_MD5 && CRYPTO_DES && CRYPTO_CBC && CRYPTO_CTS
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depends on CRYPTO_ECB && CRYPTO_HMAC && CRYPTO_SHA1 && CRYPTO_AES
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depends on CRYPTO_ARC4
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default y
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select SUNRPC_GSS
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help
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Choose Y here to enable Secure RPC using the Kerberos version 5
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GSS-API mechanism (RFC 1964).
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Secure RPC calls with Kerberos require an auxiliary user-space
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daemon which may be found in the Linux nfs-utils package
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available from http://linux-nfs.org/. In addition, user-space
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Kerberos support should be installed.
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If unsure, say Y.
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config SUNRPC_DEBUG
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bool "RPC: Enable dprintk debugging"
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depends on SUNRPC && SYSCTL
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help
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This option enables a sysctl-based debugging interface
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that is be used by the 'rpcdebug' utility to turn on or off
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logging of different aspects of the kernel RPC activity.
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Disabling this option will make your kernel slightly smaller,
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but makes troubleshooting NFS issues significantly harder.
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If unsure, say Y.
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