git: 6fc80c13284f - stable/13 - nfscl: Check for a forced dismount in nfscl_getref()
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Date: Wed, 17 Nov 2021 01:21:59 UTC
The branch stable/13 has been updated by rmacklem: URL: https://cgit.FreeBSD.org/src/commit/?id=6fc80c13284fd3c7e53a273a7ef001e66fe7f7be commit 6fc80c13284fd3c7e53a273a7ef001e66fe7f7be Author: Rick Macklem <rmacklem@FreeBSD.org> AuthorDate: 2021-11-03 00:28:13 +0000 Commit: Rick Macklem <rmacklem@FreeBSD.org> CommitDate: 2021-11-17 01:18:34 +0000 nfscl: Check for a forced dismount in nfscl_getref() The nfscl_getref() function is called within nfscl_doiods() when the NFSv4.1/4.2 pNFS client is doing I/O on a DS. As such, nfscl_getref() needs to check for a forced dismount. This patch adds that check. Found during a recent IETF NFSv4 working group testing event. (cherry picked from commit 331883a2f2e9ae5567085e4cd3a7ae3db2a2b022) --- sys/fs/nfsclient/nfs_clstate.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/sys/fs/nfsclient/nfs_clstate.c b/sys/fs/nfsclient/nfs_clstate.c index f1d661e7c90a..51f901bf14fc 100644 --- a/sys/fs/nfsclient/nfs_clstate.c +++ b/sys/fs/nfsclient/nfs_clstate.c @@ -4909,6 +4909,7 @@ int nfscl_getref(struct nfsmount *nmp) { struct nfsclclient *clp; + int ret; NFSLOCKCLSTATE(); clp = nfscl_findcl(nmp); @@ -4916,9 +4917,12 @@ nfscl_getref(struct nfsmount *nmp) NFSUNLOCKCLSTATE(); return (0); } - nfsv4_getref(&clp->nfsc_lock, NULL, NFSCLSTATEMUTEXPTR, NULL); + nfsv4_getref(&clp->nfsc_lock, NULL, NFSCLSTATEMUTEXPTR, nmp->nm_mountp); + ret = 1; + if (NFSCL_FORCEDISM(nmp->nm_mountp)) + ret = 0; NFSUNLOCKCLSTATE(); - return (1); + return (ret); } /*