motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 08:43:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

qemu: virtio-9p: Implement statfs support in server

Browse source 
Implement statfs support in qemu server based on Sripathi's
initial statfs patch.

Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
This commit is contained in:
M. Mohan Kumar 2010-05-10 12:11:03 +05:30 • committed by Aneesh Kumar K.V
parent 84151514e4
commit be940c8716
4 changed files with 94 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

63
hw/virtio-9p.c
View file

@ -2144,9 +2144,72 @@ out:
qemu_free(vs);
}
static int v9fs_do_statfs(V9fsState *s, V9fsString *path, struct statfs *stbuf)
{
return s->ops->statfs(&s->ctx, path->data, stbuf);
}
static void v9fs_statfs_post_statfs(V9fsState *s, V9fsStatfsState *vs, int err)
{
if (err) {
err = -errno;
goto out;
}
vs->v9statfs.f_type = vs->stbuf.f_type;
vs->v9statfs.f_bsize = vs->stbuf.f_bsize;
vs->v9statfs.f_blocks = vs->stbuf.f_blocks;
vs->v9statfs.f_bfree = vs->stbuf.f_bfree;
vs->v9statfs.f_bavail = vs->stbuf.f_bavail;
vs->v9statfs.f_files = vs->stbuf.f_files;
vs->v9statfs.f_ffree = vs->stbuf.f_ffree;
vs->v9statfs.fsid_val = (unsigned int) vs->stbuf.f_fsid.__val[0] |
(unsigned long long)vs->stbuf.f_fsid.__val[1] << 32;
vs->v9statfs.f_namelen = vs->stbuf.f_namelen;
vs->offset += pdu_marshal(vs->pdu, vs->offset, "ddqqqqqqd",
vs->v9statfs.f_type, vs->v9statfs.f_bsize, vs->v9statfs.f_blocks,
vs->v9statfs.f_bfree, vs->v9statfs.f_bavail, vs->v9statfs.f_files,
vs->v9statfs.f_ffree, vs->v9statfs.fsid_val,
vs->v9statfs.f_namelen);
out:
complete_pdu(s, vs->pdu, vs->offset);
qemu_free(vs);
}
static void v9fs_statfs(V9fsState *s, V9fsPDU *pdu)
{
V9fsStatfsState *vs;
ssize_t err = 0;
vs = qemu_malloc(sizeof(*vs));
vs->pdu = pdu;
vs->offset = 7;
memset(&vs->v9statfs, 0, sizeof(vs->v9statfs));
pdu_unmarshal(vs->pdu, vs->offset, "d", &vs->fid);
vs->fidp = lookup_fid(s, vs->fid);
if (vs->fidp == NULL) {
err = -ENOENT;
goto out;
}
err = v9fs_do_statfs(s, &vs->fidp->path, &vs->stbuf);
v9fs_statfs_post_statfs(s, vs, err);
return;
out:
complete_pdu(s, vs->pdu, err);
qemu_free(vs);
}
typedef void (pdu_handler_t)(V9fsState *s, V9fsPDU *pdu);
static pdu_handler_t *pdu_handlers[] = {
[P9_TSTATFS] = v9fs_statfs,
[P9_TVERSION] = v9fs_version,
[P9_TATTACH] = v9fs_attach,
[P9_TSTAT] = v9fs_stat,