diff options
Diffstat (limited to 'sys/kern/vfs_export.c')
| -rw-r--r-- | sys/kern/vfs_export.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/vfs_export.c b/sys/kern/vfs_export.c index 7afe991..439e84f 100644 --- a/sys/kern/vfs_export.c +++ b/sys/kern/vfs_export.c @@ -255,6 +255,7 @@ vfs_export(struct mount *mp, struct export_args *argp) nep = mp->mnt_export; error = 0; + lockmgr(&mp->mnt_explock, LK_EXCLUSIVE, NULL); if (argp->ex_flags & MNT_DELEXPORT) { if (nep == NULL) { error = ENOENT; @@ -294,6 +295,7 @@ vfs_export(struct mount *mp, struct export_args *argp) } out: + lockmgr(&mp->mnt_explock, LK_RELEASE, NULL); /* * Once we have executed the vfs_export() command, we do * not want to keep the "export" option around in the @@ -443,7 +445,9 @@ vfs_stdcheckexp(struct mount *mp, struct sockaddr *nam, int *extflagsp, { struct netcred *np; + lockmgr(&mp->mnt_explock, LK_SHARED, NULL); np = vfs_export_lookup(mp, nam); + lockmgr(&mp->mnt_explock, LK_RELEASE, NULL); if (np == NULL) return (EACCES); *extflagsp = np->netc_exflags; |
