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linux-stable/net/sunrpc
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Chuck Lever 2d77058cce xprtrdma: MR-related memory allocation should be allowed to fail 
xprtrdma always drives a retry of MR allocation if it should fail.
It should be safe to not use GFP_KERNEL for this purpose rather
than sleeping in the memory allocator.

In theory, if these weaker allocations are attempted first, memory
exhaustion is likely to cause xprtrdma to fail fast and not then
invoke the RDMA core APIs, which still might use GFP_KERNEL.

Also note that rpc_task_gfp_mask() always sets __GFP_NORETRY and
__GFP_NOWARN when an RPC-related allocation is being done in a
worker thread. MR allocation is already always done in worker
threads.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2022-10-05 15:47:16 -04:00
..
auth_gss SUNRPC: Fix an RPC/RDMA performance regression 2022-07-10 19:00:53 -04:00
xprtrdma xprtrdma: MR-related memory allocation should be allowed to fail 2022-10-05 15:47:16 -04:00
addr.c nfsd: don't alloc under spinlock in rpc_parse_scope_id 2021-09-21 17:51:47 -04:00
auth.c NFS client updates for Linux 5.20 2022-08-10 14:04:32 -07:00
auth_null.c
auth_unix.c SUNRPC: Fix unx_lookup_cred() allocation 2022-03-22 15:52:55 -04:00
backchannel_rqst.c NFS client updates for Linux 5.20 2022-08-10 14:04:32 -07:00
cache.c SUNRPC: Cache deferral injection 2022-05-19 12:25:38 -04:00
clnt.c SUNRPC: Directly use ida_alloc()/free() 2022-10-03 11:26:36 -04:00
debugfs.c SUNRPC: Cache deferral injection 2022-05-19 12:25:38 -04:00
fail.h SUNRPC: Cache deferral injection 2022-05-19 12:25:38 -04:00
Kconfig SUNRPC: remove RC4-HMAC-MD5 support from KerberosV 2020-09-11 14:39:15 +10:00
Makefile sunrpc: Create a sunrpc directory under /sys/kernel/ 2021-07-08 14:03:23 -04:00
netns.h
rpc_pipe.c fs: allocate inode by using alloc_inode_sb() 2022-03-22 15:57:03 -07:00
rpcb_clnt.c SUNRPC: Make the rpciod and xprtiod slab allocation modes consistent 2022-03-22 15:52:55 -04:00
sched.c SUNRPC: Fix an RPC/RDMA performance regression 2022-07-10 19:00:53 -04:00
socklib.c SUNRPC: Move the call to xprt_send_pagedata() out of xprt_sock_sendmsg() 2022-04-07 16:20:01 -04:00
socklib.h SUNRPC: Refactor xs_sendpages() 2020-03-16 12:04:33 -04:00
stats.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
sunrpc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE 2022-06-10 14:51:35 +02:00
sunrpc_syms.c sunrpc: add IDs to multipath 2021-07-08 14:03:23 -04:00
svc.c SUNRPC: Use RMW bitops in single-threaded hot paths 2022-05-23 11:06:29 -04:00
svc_xprt.c SUNRPC: Expand the svc_alloc_arg_err tracepoint 2022-07-29 20:08:56 -04:00
svcauth.c SUNRPC: Teach server to recognize RPC_AUTH_TLS 2022-02-28 10:26:40 -05:00
svcauth_unix.c SUNRPC: Teach server to recognize RPC_AUTH_TLS 2022-02-28 10:26:40 -05:00
svcsock.c NFSD 5.19 Release Notes 2022-05-26 20:52:24 -07:00
sysctl.c net/sunrpc: fix useless comparison in proc_do_xprt() 2020-11-08 16:28:25 -05:00
sysfs.c net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change() 2022-08-12 11:21:28 +01:00
sysfs.h SUNRPC: take a xprt offline using sysfs 2021-07-08 14:03:24 -04:00
timer.c
xdr.c SUNRPC: Remove xdr_align_data() and xdr_expand_hole() 2022-07-23 15:38:29 -04:00
xprt.c SUNRPC: use max_t() to simplify open code 2022-10-03 11:26:36 -04:00
xprtmultipath.c SUNRPC: Directly use ida_alloc()/free() 2022-10-03 11:26:36 -04:00
xprtsock.c SUNRPC: move from strlcpy with unused retval to strscpy 2022-10-03 11:26:36 -04:00