From dead28da8e3fb32601d38fb32b7021122e0a3d21 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 20 Mar 2006 13:44:23 -0500 Subject: SUNRPC: eliminate rpc_call() Clean-up: replace rpc_call() helper with direct call to rpc_call_sync. This makes NFSv2 and NFSv3 synchronous calls more computationally efficient, and reduces stack consumption in functions that used to invoke rpc_call more than once. Test plan: Compile kernel with CONFIG_NFS enabled. Connectathon on NFS version 2, version 3, and version 4 mount points. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/nfs3proc.c | 140 +++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 102 insertions(+), 38 deletions(-) (limited to 'fs/nfs/nfs3proc.c') diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 7204ba5b2bf..740f8b1ab04 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -43,21 +43,7 @@ nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) return res; } -static inline int -nfs3_rpc_call_wrapper(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags) -{ - struct rpc_message msg = { - .rpc_proc = &clnt->cl_procinfo[proc], - .rpc_argp = argp, - .rpc_resp = resp, - }; - return nfs3_rpc_wrapper(clnt, &msg, flags); -} - -#define rpc_call(clnt, proc, argp, resp, flags) \ - nfs3_rpc_call_wrapper(clnt, proc, argp, resp, flags) -#define rpc_call_sync(clnt, msg, flags) \ - nfs3_rpc_wrapper(clnt, msg, flags) +#define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) static int nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) @@ -75,14 +61,21 @@ static int do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, struct nfs_fsinfo *info) { + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], + .rpc_argp = fhandle, + .rpc_resp = info, + }; int status; dprintk("%s: call fsinfo\n", __FUNCTION__); nfs_fattr_init(info->fattr); - status = rpc_call(client, NFS3PROC_FSINFO, fhandle, info, 0); + status = rpc_call_sync(client, &msg, 0); dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status); if (!(info->fattr->valid & NFS_ATTR_FATTR)) { - status = rpc_call(client, NFS3PROC_GETATTR, fhandle, info->fattr, 0); + msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; + msg.rpc_resp = info->fattr; + status = rpc_call_sync(client, &msg, 0); dprintk("%s: reply getattr: %d\n", __FUNCTION__, status); } return status; @@ -110,12 +103,16 @@ static int nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], + .rpc_argp = fhandle, + .rpc_resp = fattr, + }; int status; dprintk("NFS call getattr\n"); nfs_fattr_init(fattr); - status = rpc_call(server->client, NFS3PROC_GETATTR, - fhandle, fattr, 0); + status = rpc_call_sync(server->client, &msg, 0); dprintk("NFS reply getattr: %d\n", status); return status; } @@ -129,11 +126,16 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, .fh = NFS_FH(inode), .sattr = sattr, }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], + .rpc_argp = &arg, + .rpc_resp = fattr, + }; int status; dprintk("NFS call setattr\n"); nfs_fattr_init(fattr); - status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 0); + status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); if (status == 0) nfs_setattr_update_inode(inode, sattr); dprintk("NFS reply setattr: %d\n", status); @@ -155,15 +157,23 @@ nfs3_proc_lookup(struct inode *dir, struct qstr *name, .fh = fhandle, .fattr = fattr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], + .rpc_argp = &arg, + .rpc_resp = &res, + }; int status; dprintk("NFS call lookup %s\n", name->name); nfs_fattr_init(&dir_attr); nfs_fattr_init(fattr); - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0); - if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR, - fhandle, fattr, 0); + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); + if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { + msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; + msg.rpc_argp = fhandle; + msg.rpc_resp = fattr; + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); + } dprintk("NFS reply lookup: %d\n", status); if (status >= 0) status = nfs_refresh_inode(dir, &dir_attr); @@ -183,7 +193,7 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], .rpc_argp = &arg, .rpc_resp = &res, - .rpc_cred = entry->cred + .rpc_cred = entry->cred, }; int mode = entry->mask; int status; @@ -229,12 +239,16 @@ static int nfs3_proc_readlink(struct inode *inode, struct page *page, .pglen = pglen, .pages = &page }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], + .rpc_argp = &args, + .rpc_resp = &fattr, + }; int status; dprintk("NFS call readlink\n"); nfs_fattr_init(&fattr); - status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK, - &args, &fattr, 0); + status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); nfs_refresh_inode(inode, &fattr); dprintk("NFS reply readlink: %d\n", status); return status; @@ -330,6 +344,11 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, .fh = &fhandle, .fattr = &fattr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_CREATE], + .rpc_argp = &arg, + .rpc_resp = &res, + }; mode_t mode = sattr->ia_mode; int status; @@ -346,8 +365,8 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, again: nfs_fattr_init(&dir_attr); nfs_fattr_init(&fattr); - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0); - nfs_post_op_update_inode(dir, &dir_attr); + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); + nfs_refresh_inode(dir, &dir_attr); /* If the server doesn't support the exclusive creation semantics, * try again with simple 'guarded' mode. */ @@ -477,12 +496,17 @@ nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, .fromattr = &old_dir_attr, .toattr = &new_dir_attr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], + .rpc_argp = &arg, + .rpc_resp = &res, + }; int status; dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); nfs_fattr_init(&old_dir_attr); nfs_fattr_init(&new_dir_attr); - status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0); + status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); nfs_post_op_update_inode(old_dir, &old_dir_attr); nfs_post_op_update_inode(new_dir, &new_dir_attr); dprintk("NFS reply rename: %d\n", status); @@ -503,12 +527,17 @@ nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) .dir_attr = &dir_attr, .fattr = &fattr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], + .rpc_argp = &arg, + .rpc_resp = &res, + }; int status; dprintk("NFS call link %s\n", name->name); nfs_fattr_init(&dir_attr); nfs_fattr_init(&fattr); - status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0); + status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); nfs_post_op_update_inode(dir, &dir_attr); nfs_post_op_update_inode(inode, &fattr); dprintk("NFS reply link: %d\n", status); @@ -534,6 +563,11 @@ nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path, .fh = fhandle, .fattr = fattr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK], + .rpc_argp = &arg, + .rpc_resp = &res, + }; int status; if (path->len > NFS3_MAXPATHLEN) @@ -541,7 +575,7 @@ nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path, dprintk("NFS call symlink %s -> %s\n", name->name, path->name); nfs_fattr_init(&dir_attr); nfs_fattr_init(fattr); - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0); + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); nfs_post_op_update_inode(dir, &dir_attr); dprintk("NFS reply symlink: %d\n", status); return status; @@ -563,6 +597,11 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) .fh = &fhandle, .fattr = &fattr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR], + .rpc_argp = &arg, + .rpc_resp = &res, + }; int mode = sattr->ia_mode; int status; @@ -572,7 +611,7 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) nfs_fattr_init(&dir_attr); nfs_fattr_init(&fattr); - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0); + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); nfs_post_op_update_inode(dir, &dir_attr); if (status != 0) goto out; @@ -594,11 +633,16 @@ nfs3_proc_rmdir(struct inode *dir, struct qstr *name) .name = name->name, .len = name->len }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], + .rpc_argp = &arg, + .rpc_resp = &dir_attr, + }; int status; dprintk("NFS call rmdir %s\n", name->name); nfs_fattr_init(&dir_attr); - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0); + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); nfs_post_op_update_inode(dir, &dir_attr); dprintk("NFS reply rmdir: %d\n", status); return status; @@ -675,6 +719,11 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, .fh = &fh, .fattr = &fattr }; + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD], + .rpc_argp = &arg, + .rpc_resp = &res, + }; mode_t mode = sattr->ia_mode; int status; @@ -693,7 +742,7 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, nfs_fattr_init(&dir_attr); nfs_fattr_init(&fattr); - status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0); + status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); nfs_post_op_update_inode(dir, &dir_attr); if (status != 0) goto out; @@ -710,11 +759,16 @@ static int nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *stat) { + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], + .rpc_argp = fhandle, + .rpc_resp = stat, + }; int status; dprintk("NFS call fsstat\n"); nfs_fattr_init(stat->fattr); - status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, stat, 0); + status = rpc_call_sync(server->client, &msg, 0); dprintk("NFS reply statfs: %d\n", status); return status; } @@ -723,11 +777,16 @@ static int nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *info) { + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], + .rpc_argp = fhandle, + .rpc_resp = info, + }; int status; dprintk("NFS call fsinfo\n"); nfs_fattr_init(info->fattr); - status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0); + status = rpc_call_sync(server->client_sys, &msg, 0); dprintk("NFS reply fsinfo: %d\n", status); return status; } @@ -736,11 +795,16 @@ static int nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_pathconf *info) { + struct rpc_message msg = { + .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], + .rpc_argp = fhandle, + .rpc_resp = info, + }; int status; dprintk("NFS call pathconf\n"); nfs_fattr_init(info->fattr); - status = rpc_call(server->client, NFS3PROC_PATHCONF, fhandle, info, 0); + status = rpc_call_sync(server->client, &msg, 0); dprintk("NFS reply pathconf: %d\n", status); return status; } -- cgit v1.2.3-18-g5258