Author: jhb
Date: Mon Nov 14 18:52:07 2011
New Revision: 227507
URL: http://svn.freebsd.org/changeset/base/227507
Log:
Finish making 'wcommitsize' an NFS client mount option.
Reviewed by: rmacklem
MFC after: 1 week
Modified:
head/sbin/mount_nfs/mount_nfs.8
head/sbin/mount_nfs/mount_nfs.c
head/sys/fs/nfsclient/nfs_clvfsops.c
head/sys/nfsclient/nfs_vfsops.c
Modified: head/sbin/mount_nfs/mount_nfs.8
==============================================================================
--- head/sbin/mount_nfs/mount_nfs.8 Mon Nov 14 18:51:39 2011
(r227506)
+++ head/sbin/mount_nfs/mount_nfs.8 Mon Nov 14 18:52:07 2011
(r227507)
@@ -318,6 +318,10 @@ tune the timeout
interval.)
.It Cm udp
Use UDP transport.
+.It Cm wcommitsize Ns = Ns Aq Ar value
+Set the maximum pending write commit size to the specified value.
+This determines the maximum amount of pending write data that the NFS
+client is willing to cache for each file.
.It Cm wsize Ns = Ns Aq Ar value
Set the write data size to the specified value.
Ditto the comments w.r.t.\& the
Modified: head/sbin/mount_nfs/mount_nfs.c
==============================================================================
--- head/sbin/mount_nfs/mount_nfs.c Mon Nov 14 18:51:39 2011
(r227506)
+++ head/sbin/mount_nfs/mount_nfs.c Mon Nov 14 18:52:07 2011
(r227507)
@@ -612,6 +612,13 @@ fallback_mount(struct iovec *iov, int io
}
args.flags |= NFSMNT_ACDIRMAX;
}
+ if (findopt(iov, iovlen, "wcommitsize", &opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.wcommitsize);
+ if (ret != 1 || args.wcommitsize < 0) {
+ errx(1, "illegal wcommitsize: %s", opt);
+ }
+ args.flags |= NFSMNT_WCOMMITSIZE;
+ }
if (findopt(iov, iovlen, "deadthresh", &opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.deadthresh);
if (ret != 1 || args.deadthresh <= 0) {
Modified: head/sys/fs/nfsclient/nfs_clvfsops.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clvfsops.c Mon Nov 14 18:51:39 2011
(r227506)
+++ head/sys/fs/nfsclient/nfs_clvfsops.c Mon Nov 14 18:52:07 2011
(r227507)
@@ -715,7 +715,7 @@ static const char *nfs_opts[] = { "from"
"retrans", "acregmin", "acregmax", "acdirmin", "acdirmax", "resvport",
"readahead", "hostname", "timeout", "addr", "fh", "nfsv3", "sec",
"principal", "nfsv4", "gssname", "allgssname", "dirpath",
- "negnametimeo", "nocto",
+ "negnametimeo", "nocto", "wcommitsize",
NULL };
/*
@@ -949,6 +949,15 @@ nfs_mount(struct mount *mp)
}
args.flags |= NFSMNT_ACDIRMAX;
}
+ if (vfs_getopt(mp->mnt_optnew, "wcommitsize", (void **)&opt, NULL) ==
0) {
+ ret = sscanf(opt, "%d", &args.wcommitsize);
+ if (ret != 1 || args.wcommitsize < 0) {
+ vfs_mount_error(mp, "illegal wcommitsize: %s", opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_WCOMMITSIZE;
+ }
if (vfs_getopt(mp->mnt_optnew, "timeout", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.timeo);
if (ret != 1 || args.timeo <= 0) {
Modified: head/sys/nfsclient/nfs_vfsops.c
==============================================================================
--- head/sys/nfsclient/nfs_vfsops.c Mon Nov 14 18:51:39 2011
(r227506)
+++ head/sys/nfsclient/nfs_vfsops.c Mon Nov 14 18:52:07 2011
(r227507)
@@ -787,7 +787,7 @@ static const char *nfs_opts[] = { "from"
"readahead", "readdirsize", "soft", "hard", "mntudp", "tcp", "udp",
"wsize", "rsize", "retrans", "acregmin", "acregmax", "acdirmin",
"acdirmax", "deadthresh", "hostname", "timeout", "addr", "fh", "nfsv3",
- "sec", "maxgroups", "principal", "negnametimeo", "nocto",
+ "sec", "maxgroups", "principal", "negnametimeo", "nocto", "wcommitsize",
NULL };
/*
@@ -1019,6 +1019,15 @@ nfs_mount(struct mount *mp)
}
args.flags |= NFSMNT_ACDIRMAX;
}
+ if (vfs_getopt(mp->mnt_optnew, "wcommitsize", (void **)&opt, NULL) ==
0) {
+ ret = sscanf(opt, "%d", &args.wcommitsize);
+ if (ret != 1 || args.wcommitsize < 0) {
+ vfs_mount_error(mp, "illegal wcommitsize: %s", opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_WCOMMITSIZE;
+ }
if (vfs_getopt(mp->mnt_optnew, "deadthresh", (void **)&opt, NULL) == 0)
{
ret = sscanf(opt, "%d", &args.deadthresh);
if (ret != 1 || args.deadthresh <= 0) {
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