diff options
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r-- | fs/nfs/nfs4proc.c | 57 |
1 files changed, 32 insertions, 25 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 86ed5c0142c3..40d749f29ed3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -122,6 +122,11 @@ nfs4_label_init_security(struct inode *dir, struct dentry *dentry, if (nfs_server_capable(dir, NFS_CAP_SECURITY_LABEL) == 0) return NULL; + label->lfs = 0; + label->pi = 0; + label->len = 0; + label->label = NULL; + err = security_dentry_init_security(dentry, sattr->ia_mode, &dentry->d_name, NULL, (void **)&label->label, &label->len); @@ -2126,18 +2131,18 @@ static struct nfs4_opendata *nfs4_open_recoverdata_alloc(struct nfs_open_context } static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, - fmode_t fmode) + fmode_t fmode) { struct nfs4_state *newstate; + struct nfs_server *server = NFS_SB(opendata->dentry->d_sb); + int openflags = opendata->o_arg.open_flags; int ret; if (!nfs4_mode_match_open_stateid(opendata->state, fmode)) return 0; - opendata->o_arg.open_flags = 0; opendata->o_arg.fmode = fmode; - opendata->o_arg.share_access = nfs4_map_atomic_open_share( - NFS_SB(opendata->dentry->d_sb), - fmode, 0); + opendata->o_arg.share_access = + nfs4_map_atomic_open_share(server, fmode, openflags); memset(&opendata->o_res, 0, sizeof(opendata->o_res)); memset(&opendata->c_res, 0, sizeof(opendata->c_res)); nfs4_init_opendata_res(opendata); @@ -2625,8 +2630,7 @@ static int _nfs4_recover_proc_open(struct nfs4_opendata *data) */ static int nfs4_opendata_access(const struct cred *cred, struct nfs4_opendata *opendata, - struct nfs4_state *state, fmode_t fmode, - int openflags) + struct nfs4_state *state, fmode_t fmode) { struct nfs_access_entry cache; u32 mask, flags; @@ -2637,11 +2641,7 @@ static int nfs4_opendata_access(const struct cred *cred, return 0; mask = 0; - /* - * Use openflags to check for exec, because fmode won't - * always have FMODE_EXEC set when file open for exec. - */ - if (openflags & __FMODE_EXEC) { + if (fmode & FMODE_EXEC) { /* ONLY check for exec rights */ if (S_ISDIR(state->inode->i_mode)) mask = NFS4_ACCESS_LOOKUP; @@ -2719,10 +2719,15 @@ static int _nfs4_open_expired(struct nfs_open_context *ctx, struct nfs4_state *s struct nfs4_opendata *opendata; int ret; - opendata = nfs4_open_recoverdata_alloc(ctx, state, - NFS4_OPEN_CLAIM_FH); + opendata = nfs4_open_recoverdata_alloc(ctx, state, NFS4_OPEN_CLAIM_FH); if (IS_ERR(opendata)) return PTR_ERR(opendata); + /* + * We're not recovering a delegation, so ask for no delegation. + * Otherwise the recovery thread could deadlock with an outstanding + * delegation return. + */ + opendata->o_arg.open_flags = O_DIRECT; ret = nfs4_open_recover(opendata, state); if (ret == -ESTALE) d_drop(ctx->dentry); @@ -3024,7 +3029,7 @@ static unsigned nfs4_exclusive_attrset(struct nfs4_opendata *opendata, } static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, - int flags, struct nfs_open_context *ctx) + struct nfs_open_context *ctx) { struct nfs4_state_owner *sp = opendata->owner; struct nfs_server *server = sp->so_server; @@ -3085,8 +3090,7 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, /* Parse layoutget results before we check for access */ pnfs_parse_lgopen(state->inode, opendata->lgp, ctx); - ret = nfs4_opendata_access(sp->so_cred, opendata, state, - acc_mode, flags); + ret = nfs4_opendata_access(sp->so_cred, opendata, state, acc_mode); if (ret != 0) goto out; @@ -3160,7 +3164,7 @@ static int _nfs4_do_open(struct inode *dir, if (d_really_is_positive(dentry)) opendata->state = nfs4_get_open_state(d_inode(dentry), sp); - status = _nfs4_open_and_get_state(opendata, flags, ctx); + status = _nfs4_open_and_get_state(opendata, ctx); if (status != 0) goto err_opendata_put; state = ctx->state; @@ -3796,7 +3800,7 @@ nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags, struct iattr *attr, int *opened) { struct nfs4_state *state; - struct nfs4_label l = {0, 0, 0, NULL}, *label = NULL; + struct nfs4_label l, *label; label = nfs4_label_init_security(dir, ctx->dentry, attr, &l); @@ -4013,7 +4017,7 @@ static int _nfs4_discover_trunking(struct nfs_server *server, page = alloc_page(GFP_KERNEL); if (!page) - return -ENOMEM; + goto out_put_cred; locations = kmalloc(sizeof(struct nfs4_fs_locations), GFP_KERNEL); if (!locations) goto out_free; @@ -4035,6 +4039,8 @@ out_free_2: kfree(locations); out_free: __free_page(page); +out_put_cred: + put_cred(cred); return status; } @@ -4682,7 +4688,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, int flags) { struct nfs_server *server = NFS_SERVER(dir); - struct nfs4_label l, *ilabel = NULL; + struct nfs4_label l, *ilabel; struct nfs_open_context *ctx; struct nfs4_state *state; int status = 0; @@ -5033,7 +5039,7 @@ static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry, struct nfs4_exception exception = { .interruptible = true, }; - struct nfs4_label l, *label = NULL; + struct nfs4_label l, *label; int err; label = nfs4_label_init_security(dir, dentry, sattr, &l); @@ -5074,7 +5080,7 @@ static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, struct nfs4_exception exception = { .interruptible = true, }; - struct nfs4_label l, *label = NULL; + struct nfs4_label l, *label; int err; label = nfs4_label_init_security(dir, dentry, sattr, &l); @@ -5193,7 +5199,7 @@ static int nfs4_proc_mknod(struct inode *dir, struct dentry *dentry, struct nfs4_exception exception = { .interruptible = true, }; - struct nfs4_label l, *label = NULL; + struct nfs4_label l, *label; int err; label = nfs4_label_init_security(dir, dentry, sattr, &l); @@ -7017,12 +7023,13 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock * mutex_unlock(&sp->so_delegreturn_mutex); goto out; } + lsp = request->fl_u.nfs4_fl.owner; + set_bit(NFS_LOCK_UNLOCKING, &lsp->ls_flags); up_read(&nfsi->rwsem); mutex_unlock(&sp->so_delegreturn_mutex); if (status != 0) goto out; /* Is this a delegated lock? */ - lsp = request->fl_u.nfs4_fl.owner; if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) == 0) goto out; alloc_seqid = NFS_SERVER(inode)->nfs_client->cl_mvops->alloc_seqid; |