diff options
Diffstat (limited to 'sys/nfs4client/nfs4_vfs_subs.c')
| -rw-r--r-- | sys/nfs4client/nfs4_vfs_subs.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/sys/nfs4client/nfs4_vfs_subs.c b/sys/nfs4client/nfs4_vfs_subs.c new file mode 100644 index 0000000..ecd8b1d --- /dev/null +++ b/sys/nfs4client/nfs4_vfs_subs.c @@ -0,0 +1,150 @@ +/* $FreeBSD$ */ +/* $Id: nfs4_vfs_subs.c,v 1.5 2003/11/05 14:59:00 rees Exp $ */ + +/* + * copyright (c) 2003 + * the regents of the university of michigan + * all rights reserved + * + * permission is granted to use, copy, create derivative works and redistribute + * this software and such derivative works for any purpose, so long as the name + * of the university of michigan is not used in any advertising or publicity + * pertaining to the use or distribution of this software without specific, + * written prior authorization. if the above copyright notice or any other + * identification of the university of michigan is included in any copy of any + * portion of this software, then the disclaimer below must also be included. + * + * this software is provided as is, without representation from the university + * of michigan as to its fitness for any purpose, and without warranty by the + * university of michigan of any kind, either express or implied, including + * without limitation the implied warranties of merchantability and fitness for + * a particular purpose. the regents of the university of michigan shall not be + * liable for any damages, including special, indirect, incidental, or + * consequential damages, with respect to any claim arising out of or in + * connection with the use of the software, even if it has been or is hereafter + * advised of the possibility of such damages. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/limits.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/mbuf.h> +#include <sys/module.h> +#include <sys/mount.h> +#include <sys/proc.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/sockio.h> +#include <sys/vnode.h> + +#include <vm/vm.h> +#include <vm/vm_extern.h> +#include <vm/uma.h> + +#include <net/if.h> +#include <net/route.h> +#include <netinet/in.h> + +#include <rpc/rpcclnt.h> + +#include <nfs/rpcv2.h> +#include <nfs/nfsproto.h> +#include <nfsclient/nfs.h> +#include <nfsclient/nfsmount.h> +#include <nfs/xdr_subs.h> +#include <nfsclient/nfsm_subs.h> +#include <nfsclient/nfsdiskless.h> + +/* NFSv4 */ +#include <nfs4client/nfs4.h> +#include <nfs4client/nfs4m_subs.h> +#include <nfs4client/nfs4_vfs.h> + +#include <nfsclient/nfsnode.h> + +static int nfs_iosize(struct nfsmount *nmp); + +static int +nfs_iosize(struct nfsmount *nmp) +{ + int iosize; + + /* + * Calculate the size used for io buffers. Use the larger + * of the two sizes to minimise nfs requests but make sure + * that it is at least one VM page to avoid wasting buffer + * space. + */ + iosize = max(nmp->nm_rsize, nmp->nm_wsize); + if (iosize < PAGE_SIZE) iosize = PAGE_SIZE; + return iosize; +} + +void +nfs4_vfsop_fsinfo(struct nfsv4_fattr *fap, struct nfsmount *nmp) +{ + uint32_t max; + + if (fap->fa4_valid & FA4V_FSID) { + nmp->nm_fsid.val[0] = fap->fa4_fsid_major; + nmp->nm_fsid.val[1] = fap->fa4_fsid_minor; + } + if (fap->fa4_valid & FA4V_MAXREAD) { + max = fap->fa4_maxread; + if (max < nmp->nm_rsize) { + nmp->nm_rsize = max & ~(NFS_FABLKSIZE - 1); + if (nmp->nm_rsize == 0) + nmp->nm_rsize = max; + } + if (max < nmp->nm_readdirsize) { + nmp->nm_readdirsize = max & ~(NFS_DIRBLKSIZ - 1); + if (nmp->nm_readdirsize == 0) + nmp->nm_readdirsize = max; + } + } + if (fap->fa4_valid & FA4V_MAXWRITE) { + max = fap->fa4_maxwrite; + if (max < nmp->nm_wsize) { + nmp->nm_wsize = max & ~(NFS_FABLKSIZE - 1); + if (nmp->nm_wsize == 0) + nmp->nm_wsize = max; + } + } + if (fap->fa4_valid & FA4V_LEASE_TIME) + nmp->nm_lease_time = fap->fa4_lease_time; + + /* nmp->nm_flag |= NFSMNT_GOTFSINFO; */ +} + +void +nfs4_vfsop_statfs(struct nfsv4_fattr *fap, struct statfs *sbp, struct mount *mp) +{ + struct nfsmount *nmp = VFSTONFS(mp); + + sbp->f_flags = nmp->nm_flag; + sbp->f_iosize = nfs_iosize(nmp); + sbp->f_bsize = NFS_FABLKSIZE; + + if (fap->fa4_valid & FA4V_FSID) { + sbp->f_fsid.val[0] = fap->fa4_fsid_major; + sbp->f_fsid.val[1] = fap->fa4_fsid_minor; + } + + sbp->f_ffree = fap->fa4_valid & FA4V_FFREE ? fap->fa4_ffree : 0; + /* sbp->f_ftotal = fa->fa4_valid & FA4_FTOTAL ? fa->fa4_ftotal : 0; */ + sbp->f_bavail = fap->fa4_valid & FA4V_SAVAIL ? + fap->fa4_savail / NFS_FABLKSIZE : 500000; + sbp->f_bfree = fap->fa4_valid & FA4V_SFREE ? + fap->fa4_sfree / NFS_FABLKSIZE : 500000; + sbp->f_blocks = fap->fa4_valid & FA4V_STOTAL ? + fap->fa4_stotal / NFS_FABLKSIZE : 1000000; + + if (sbp != &mp->mnt_stat) { + sbp->f_type = mp->mnt_vfc->vfc_typenum; + bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN); + bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN); + } +} |
