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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-07 18:28:10 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-07 18:38:04 -0400 |
| commit | 0aea92bf67321fc600b6c61627e0fd46e8889a49 (patch) | |
| tree | 315431149092e75d2fa1313b315cc1834dbf56cb | |
| parent | 47040da3c7524facd542f37ffeadedac4f228601 (diff) | |
| download | linux-0aea92bf67321fc600b6c61627e0fd46e8889a49.tar.bz2 | |
NFS: nfs_compare_super shouldn't check the auth flavour unless 'sec=' was set
Also don't worry about obsolete mount flags...
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/super.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index b2dd6da010b0..50bc31d8e7f0 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2295,6 +2295,18 @@ void nfs_clone_super(struct super_block *sb, struct nfs_mount_info *mount_info) nfs_initialise_sb(sb); } +#define NFS_MOUNT_CMP_FLAGMASK ~(NFS_MOUNT_INTR \ + | NFS_MOUNT_SECURE \ + | NFS_MOUNT_TCP \ + | NFS_MOUNT_VER3 \ + | NFS_MOUNT_KERBEROS \ + | NFS_MOUNT_NONLM \ + | NFS_MOUNT_BROKEN_SUID \ + | NFS_MOUNT_STRICTLOCK \ + | NFS_MOUNT_UNSHARED \ + | NFS_MOUNT_NORESVPORT \ + | NFS_MOUNT_LEGACY_INTERFACE) + static int nfs_compare_mount_options(const struct super_block *s, const struct nfs_server *b, int flags) { const struct nfs_server *a = s->s_fs_info; @@ -2305,7 +2317,7 @@ static int nfs_compare_mount_options(const struct super_block *s, const struct n goto Ebusy; if (a->nfs_client != b->nfs_client) goto Ebusy; - if (a->flags != b->flags) + if ((a->flags ^ b->flags) & NFS_MOUNT_CMP_FLAGMASK) goto Ebusy; if (a->wsize != b->wsize) goto Ebusy; @@ -2319,7 +2331,8 @@ static int nfs_compare_mount_options(const struct super_block *s, const struct n goto Ebusy; if (a->acdirmax != b->acdirmax) goto Ebusy; - if (clnt_a->cl_auth->au_flavor != clnt_b->cl_auth->au_flavor) + if (b->flags & NFS_MOUNT_SECFLAVOUR && + clnt_a->cl_auth->au_flavor != clnt_b->cl_auth->au_flavor) goto Ebusy; return 1; Ebusy: |