diff options
| author |   NeilBrown <neilb@suse.de> | 2022-03-07 10:41:44 +1100 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2022-03-13 12:59:35 -0400 |
| commit | 89c2be8a951654758dffeaaa6272328d9c8f29be (patch) | |
| tree | 9b86c644f8231c079f1580cb5c8cb986778e386a | |
| parent | SUNRPC: remove scheduling boost for "SWAPPER" tasks. (diff) | |
| download | linux-dev-89c2be8a951654758dffeaaa6272328d9c8f29be.tar.xz linux-dev-89c2be8a951654758dffeaaa6272328d9c8f29be.zip | |
NFS: discard NFS_RPC_SWAPFLAGS and RPC_TASK_ROOTCREDS
NFS_RPC_SWAPFLAGS is only used for READ requests.
It sets RPC_TASK_SWAPPER which gives some memory-allocation priority to
requests. This is not needed for swap READ - though it is for writes
where it is set via a different mechanism.
RPC_TASK_ROOTCREDS causes the 'machine' credential to be used.
This is not needed as the root credential is saved when the swap file is
opened, and this is used for all IO.
So NFS_RPC_SWAPFLAGS isn't needed, and as it is the only user of
RPC_TASK_ROOTCREDS, that isn't needed either.
Remove both.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
| -rw-r--r-- | fs/nfs/read.c | 4 | ||||
| -rw-r--r-- | include/linux/nfs_fs.h | 5 | ||||
| -rw-r--r-- | include/linux/sunrpc/sched.h | 1 | ||||
| -rw-r--r-- | include/trace/events/sunrpc.h | 1 | ||||
| -rw-r--r-- | net/sunrpc/auth.c | 2 |
5 files changed, 1 insertions, 12 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c index e4c1a49b0126..5e7657374bc3 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -194,10 +194,6 @@ static void nfs_initiate_read(struct nfs_pgio_header *hdr, const struct nfs_rpc_ops *rpc_ops, struct rpc_task_setup *task_setup_data, int how) { - struct inode *inode = hdr->inode; - int swap_flags = IS_SWAPFILE(inode) ? NFS_RPC_SWAPFLAGS : 0; - - task_setup_data->flags |= swap_flags; rpc_ops->read_setup(hdr, msg); trace_nfs_initiate_read(hdr); } diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 3893386ceaed..9074ed0b65aa 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -46,11 +46,6 @@ #define NFS_MAX_TRANSPORTS 16 /* - * These are the default flags for swap requests - */ -#define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS) - -/* * Size of the NFS directory verifier */ #define NFS_DIR_VERIFIER_SIZE 2 diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index db964bb63912..56710f8056d3 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -124,7 +124,6 @@ struct rpc_task_setup { #define RPC_TASK_MOVEABLE 0x0004 /* nfs4.1+ rpc tasks */ #define RPC_TASK_NULLCREDS 0x0010 /* Use AUTH_NULL credential */ #define RPC_CALL_MAJORSEEN 0x0020 /* major timeout seen */ -#define RPC_TASK_ROOTCREDS 0x0040 /* force root creds */ #define RPC_TASK_DYNAMIC 0x0080 /* task was kmalloc'ed */ #define RPC_TASK_NO_ROUND_ROBIN 0x0100 /* send requests on "main" xprt */ #define RPC_TASK_SOFT 0x0200 /* Use soft timeouts */ diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 29982d60b68a..ac33892da411 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -311,7 +311,6 @@ TRACE_EVENT(rpc_request, { RPC_TASK_MOVEABLE, "MOVEABLE" }, \ { RPC_TASK_NULLCREDS, "NULLCREDS" }, \ { RPC_CALL_MAJORSEEN, "MAJORSEEN" }, \ - { RPC_TASK_ROOTCREDS, "ROOTCREDS" }, \ { RPC_TASK_DYNAMIC, "DYNAMIC" }, \ { RPC_TASK_NO_ROUND_ROBIN, "NO_ROUND_ROBIN" }, \ { RPC_TASK_SOFT, "SOFT" }, \ diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 6bfa19f9fa6a..682fcd24bf43 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -670,7 +670,7 @@ rpcauth_bindcred(struct rpc_task *task, const struct cred *cred, int flags) /* If machine cred couldn't be bound, try a root cred */ if (new) ; - else if (cred == &machine_cred || (flags & RPC_TASK_ROOTCREDS)) + else if (cred == &machine_cred) new = rpcauth_bind_root_cred(task, lookupflags); else if (flags & RPC_TASK_NULLCREDS) new = authnull_ops.lookup_cred(NULL, NULL, 0); |