diff options
| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2015-01-23 18:48:00 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-01-23 23:06:44 -0500 |
| commit | badc76dd0dc6d55a86c79e952f19d3af24708058 (patch) | |
| tree | 25bf3106a91cd9b8e9d4c7f69202b622033c29d1 /fs | |
| parent | NFSv4: More CLOSE/OPEN races (diff) | |
| download | linux-dev-badc76dd0dc6d55a86c79e952f19d3af24708058.tar.xz linux-dev-badc76dd0dc6d55a86c79e952f19d3af24708058.zip | |
NFSv4: Convert nfs_alloc_seqid() to return an ERR_PTR() if allocation fails
When we relax the sequencing on the NFSv4.1 OPEN/CLOSE code, we will want
to use the value NULL to indicate that no sequencing is needed.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 10 | ||||
| -rw-r--r-- | fs/nfs/nfs4state.c | 10 |
2 files changed, 10 insertions, 10 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a6c04a5812d0..c9c38077075c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -988,7 +988,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, goto err_free_p; p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask); - if (p->o_arg.seqid == NULL) + if (IS_ERR(p->o_arg.seqid)) goto err_free_label; nfs_sb_active(dentry->d_sb); p->dentry = dget(dentry); @@ -2779,7 +2779,7 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait) calldata->arg.fh = NFS_FH(state->inode); /* Serialization for the sequence id */ calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid, gfp_mask); - if (calldata->arg.seqid == NULL) + if (IS_ERR(calldata->arg.seqid)) goto out_free_calldata; calldata->arg.fmode = 0; calldata->arg.bitmask = server->cache_consistency_bitmask; @@ -5517,7 +5517,7 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock * goto out; seqid = nfs_alloc_seqid(&lsp->ls_seqid, GFP_KERNEL); status = -ENOMEM; - if (seqid == NULL) + if (IS_ERR(seqid)) goto out; task = nfs4_do_unlck(request, nfs_file_open_context(request->fl_file), lsp, seqid); status = PTR_ERR(task); @@ -5558,10 +5558,10 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl, p->arg.fh = NFS_FH(inode); p->arg.fl = &p->fl; p->arg.open_seqid = nfs_alloc_seqid(&lsp->ls_state->owner->so_seqid, gfp_mask); - if (p->arg.open_seqid == NULL) + if (IS_ERR(p->arg.open_seqid)) goto out_free; p->arg.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid, gfp_mask); - if (p->arg.lock_seqid == NULL) + if (IS_ERR(p->arg.lock_seqid)) goto out_free_seqid; p->arg.lock_stateid = &lsp->ls_stateid; p->arg.lock_owner.clientid = server->nfs_client->cl_clientid; diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 5194933ed419..b922e43d69b8 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1003,11 +1003,11 @@ struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_m struct nfs_seqid *new; new = kmalloc(sizeof(*new), gfp_mask); - if (new != NULL) { - new->sequence = counter; - INIT_LIST_HEAD(&new->list); - new->task = NULL; - } + if (new == NULL) + return ERR_PTR(-ENOMEM); + new->sequence = counter; + INIT_LIST_HEAD(&new->list); + new->task = NULL; return new; } |