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NFS client fixes for 3.17 

Highlights:
 - NFSv3 stable fix for another POSIX ACL regression
 - NFSv4 stable fix for a regression with OPEN_DOWNGRADE
 - NFSv4 stable fix for bad close() behaviour when holding a delegation
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Merge tag 'nfs-for-3.17-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:
 "Highlights:
   - NFSv3 stable fix for another POSIX ACL regression
   - NFSv4 stable fix for a regression with OPEN_DOWNGRADE
   - NFSv4 stable fix for bad close() behaviour when holding a delegation"

* tag 'nfs-for-3.17-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv3: Fix another acl regression
  NFSv4: Don't clear the open state when we just did an OPEN_DOWNGRADE
  NFSv4: Fix problems with close in the presence of a delegation
This commit is contained in:
Linus Torvalds 2014-08-29 13:04:13 -07:00
parent 848298c6fb f87d928f6d
commit 878e580e21
2 changed files with 21 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
fs/nfs/nfs3acl.c
View File

@ -129,7 +129,10 @@ static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
.rpc_argp = &args,
.rpc_resp = &fattr,
};
int status;
int status = 0;
if (acl == NULL && (!S_ISDIR(inode->i_mode) || dfacl == NULL))
goto out;
status = -EOPNOTSUPP;
if (!nfs_server_capable(inode, NFS_CAP_ACLS))

26
fs/nfs/nfs4proc.c
View File

@ -2560,6 +2560,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
nfs4_stateid *res_stateid = NULL;
dprintk("%s: begin!\n", __func__);
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
@ -2570,12 +2571,12 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
*/
switch (task->tk_status) {
case 0:
if (calldata->roc)
res_stateid = &calldata->res.stateid;
if (calldata->arg.fmode == 0 && calldata->roc)
pnfs_roc_set_barrier(state->inode,
calldata->roc_barrier);
nfs_clear_open_stateid(state, &calldata->res.stateid, 0);
renew_lease(server, calldata->timestamp);
goto out_release;
break;
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_OLD_STATEID:
@ -2589,7 +2590,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
goto out_release;
}
}
nfs_clear_open_stateid(state, NULL, calldata->arg.fmode);
nfs_clear_open_stateid(state, res_stateid, calldata->arg.fmode);
out_release:
nfs_release_seqid(calldata->arg.seqid);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);
@ -2601,6 +2602,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct inode *inode = calldata->inode;
bool is_rdonly, is_wronly, is_rdwr;
int call_close = 0;
dprintk("%s: begin!\n", __func__);
@ -2608,18 +2610,24 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
goto out_wait;
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
calldata->arg.fmode = FMODE_READ|FMODE_WRITE;
spin_lock(&state->owner->so_lock);
is_rdwr = test_bit(NFS_O_RDWR_STATE, &state->flags);
is_rdonly = test_bit(NFS_O_RDONLY_STATE, &state->flags);
is_wronly = test_bit(NFS_O_WRONLY_STATE, &state->flags);
/* Calculate the current open share mode */
calldata->arg.fmode = 0;
if (is_rdonly || is_rdwr)
calldata->arg.fmode |= FMODE_READ;
if (is_wronly || is_rdwr)
calldata->arg.fmode |= FMODE_WRITE;
/* Calculate the change in open mode */
if (state->n_rdwr == 0) {
if (state->n_rdonly == 0) {
call_close |= test_bit(NFS_O_RDONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
call_close |= is_rdonly || is_rdwr;
calldata->arg.fmode &= ~FMODE_READ;
}
if (state->n_wronly == 0) {
call_close |= test_bit(NFS_O_WRONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
call_close |= is_wronly || is_rdwr;
calldata->arg.fmode &= ~FMODE_WRITE;
}
}