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nfsd-6.5 fixes:

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- Close race window when handling FREE_STATEID operations
 - Fix regression in /proc/fs/nfsd/v4_end_grace introduced in v6.5-rc
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Merge tag 'nfsd-6.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:
 "Two last-minute one-liners for v6.5-rc. One got lost in the shuffle,
  and the other was reported just this morning"

   - Close race window when handling FREE_STATEID operations

   - Fix regression in /proc/fs/nfsd/v4_end_grace introduced in v6.5-rc"

* tag 'nfsd-6.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  NFSD: Fix a thinko introduced by recent trace point changes
  nfsd: Fix race to FREE_STATEID and cl_revoked
This commit is contained in:
Linus Torvalds 2023-08-24 14:30:47 -07:00
commit f8d6ff4490
2 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/nfsd/nfs4state.c
View File

@ -1354,9 +1354,9 @@ static void revoke_delegation(struct nfs4_delegation *dp)
trace_nfsd_stid_revoke(&dp->dl_stid);
if (clp->cl_minorversion) {
spin_lock(&clp->cl_lock);
dp->dl_stid.sc_type = NFS4_REVOKED_DELEG_STID;
refcount_inc(&dp->dl_stid.sc_count);
spin_lock(&clp->cl_lock);
list_add(&dp->dl_recall_lru, &clp->cl_revoked);
spin_unlock(&clp->cl_lock);
}

1
fs/nfsd/nfsctl.c
View File

@ -1105,6 +1105,7 @@ static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size)
if (!nn->nfsd_serv)
return -EBUSY;
trace_nfsd_end_grace(netns(file));
nfsd4_end_grace(nn);
break;
default:
return -EINVAL;