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OpenCloudOS-Kernel
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nfsd: show lock and deleg stateids 

These entries are pretty minimal for now.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2019-05-10 15:27:50 -04:00
parent 78599c42ae
commit 16d36e0999
1 changed files with 60 additions and 1 deletions
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61
fs/nfsd/nfs4state.c
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@ -2338,12 +2338,66 @@ static int nfs4_show_open(struct seq_file *s, struct nfs4_stid *st)
seq_printf(s, ", ");
nfs4_show_owner(s, oo);
seq_printf(s, " }\n");
fput(file);
return 0;
}
static int nfs4_show_lock(struct seq_file *s, struct nfs4_stid *st)
{
struct nfs4_ol_stateid *ols;
struct nfs4_file *nf;
struct file *file;
struct nfs4_stateowner *oo;
ols = openlockstateid(st);
oo = ols->st_stateowner;
nf = st->sc_file;
file = find_any_file(nf);
seq_printf(s, "- 0x%16phN: { type: lock, ", &st->sc_stateid);
/*
* Note: a lock stateid isn't really the same thing as a lock,
* it's the locking state held by one owner on a file, and there
* may be multiple (or no) lock ranges associated with it.
* (Same for the matter is true of open stateids.)
*/
nfs4_show_superblock(s, file);
/* XXX: open stateid? */
seq_printf(s, ", ");
nfs4_show_owner(s, oo);
seq_printf(s, " }\n");
fput(file);
return 0;
}
static int nfs4_show_deleg(struct seq_file *s, struct nfs4_stid *st)
{
struct nfs4_delegation *ds;
struct nfs4_file *nf;
struct file *file;
ds = delegstateid(st);
nf = st->sc_file;
file = nf->fi_deleg_file;
seq_printf(s, "- 0x%16phN: { type: deleg, ", &st->sc_stateid);
/* Kinda dead code as long as we only support read delegs: */
seq_printf(s, "access: %s, ",
ds->dl_type == NFS4_OPEN_DELEGATE_READ ? "r" : "w");
/* XXX: lease time, whether it's being recalled. */
nfs4_show_superblock(s, file);
seq_printf(s, " }\n");
return 0;
}
static int states_show(struct seq_file *s, void *v)
{
struct nfs4_stid *st = v;
@ -2351,9 +2405,14 @@ static int states_show(struct seq_file *s, void *v)
switch (st->sc_type) {
case NFS4_OPEN_STID:
return nfs4_show_open(s, st);
case NFS4_LOCK_STID:
return nfs4_show_lock(s, st);
case NFS4_DELEG_STID:
return nfs4_show_deleg(s, st);
default:
return 0; /* XXX: or SEQ_SKIP? */
}
/* XXX: copy stateids? */
}
static struct seq_operations states_seq_ops = {