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-rw-r--r--fs/nfs/callback_proc.c26
-rw-r--r--fs/nfs/delegation.c11
-rw-r--r--fs/nfs/direct.c9
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c23
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.h4
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c19
-rw-r--r--fs/nfs/nfs42proc.c19
-rw-r--r--fs/nfs/nfs4_fs.h2
-rw-r--r--fs/nfs/nfs4proc.c6
-rw-r--r--fs/nfs/nfs4state.c26
-rw-r--r--fs/nfs/write.c2
11 files changed, 98 insertions, 49 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index fa515d5ea5ba..315967354954 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -66,7 +66,7 @@ __be32 nfs4_callback_getattr(void *argp, void *resp,
out_iput:
rcu_read_unlock();
trace_nfs4_cb_getattr(cps->clp, &args->fh, inode, -ntohl(res->status));
- iput(inode);
+ nfs_iput_and_deactive(inode);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res->status));
return res->status;
@@ -108,7 +108,7 @@ __be32 nfs4_callback_recall(void *argp, void *resp,
}
trace_nfs4_cb_recall(cps->clp, &args->fh, inode,
&args->stateid, -ntohl(res));
- iput(inode);
+ nfs_iput_and_deactive(inode);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res));
return res;
@@ -686,20 +686,24 @@ __be32 nfs4_callback_offload(void *data, void *dummy,
{
struct cb_offloadargs *args = data;
struct nfs_server *server;
- struct nfs4_copy_state *copy;
+ struct nfs4_copy_state *copy, *tmp_copy;
bool found = false;
+ copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_NOFS);
+ if (!copy)
+ return htonl(NFS4ERR_SERVERFAULT);
+
spin_lock(&cps->clp->cl_lock);
rcu_read_lock();
list_for_each_entry_rcu(server, &cps->clp->cl_superblocks,
client_link) {
- list_for_each_entry(copy, &server->ss_copies, copies) {
+ list_for_each_entry(tmp_copy, &server->ss_copies, copies) {
if (memcmp(args->coa_stateid.other,
- copy->stateid.other,
+ tmp_copy->stateid.other,
sizeof(args->coa_stateid.other)))
continue;
- nfs4_copy_cb_args(copy, args);
- complete(&copy->completion);
+ nfs4_copy_cb_args(tmp_copy, args);
+ complete(&tmp_copy->completion);
found = true;
goto out;
}
@@ -707,15 +711,11 @@ __be32 nfs4_callback_offload(void *data, void *dummy,
out:
rcu_read_unlock();
if (!found) {
- copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_NOFS);
- if (!copy) {
- spin_unlock(&cps->clp->cl_lock);
- return htonl(NFS4ERR_SERVERFAULT);
- }
memcpy(&copy->stateid, &args->coa_stateid, NFS4_STATEID_SIZE);
nfs4_copy_cb_args(copy, args);
list_add_tail(&copy->copies, &cps->clp->pending_cb_stateids);
- }
+ } else
+ kfree(copy);
spin_unlock(&cps->clp->cl_lock);
return 0;
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 07b839560576..6ec2f78c1e19 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -850,16 +850,23 @@ nfs_delegation_find_inode_server(struct nfs_server *server,
const struct nfs_fh *fhandle)
{
struct nfs_delegation *delegation;
- struct inode *res = NULL;
+ struct inode *freeme, *res = NULL;
list_for_each_entry_rcu(delegation, &server->delegations, super_list) {
spin_lock(&delegation->lock);
if (delegation->inode != NULL &&
nfs_compare_fh(fhandle, &NFS_I(delegation->inode)->fh) == 0) {
- res = igrab(delegation->inode);
+ freeme = igrab(delegation->inode);
+ if (freeme && nfs_sb_active(freeme->i_sb))
+ res = freeme;
spin_unlock(&delegation->lock);
if (res != NULL)
return res;
+ if (freeme) {
+ rcu_read_unlock();
+ iput(freeme);
+ rcu_read_lock();
+ }
return ERR_PTR(-EAGAIN);
}
spin_unlock(&delegation->lock);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index aa12c3063bae..33824a0a57bf 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -98,8 +98,11 @@ struct nfs_direct_req {
struct pnfs_ds_commit_info ds_cinfo; /* Storage for cinfo */
struct work_struct work;
int flags;
+ /* for write */
#define NFS_ODIRECT_DO_COMMIT (1) /* an unstable reply was received */
#define NFS_ODIRECT_RESCHED_WRITES (2) /* write verification failed */
+ /* for read */
+#define NFS_ODIRECT_SHOULD_DIRTY (3) /* dirty user-space page after read */
struct nfs_writeverf verf; /* unstable write verifier */
};
@@ -412,7 +415,8 @@ static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
struct nfs_page *req = nfs_list_entry(hdr->pages.next);
struct page *page = req->wb_page;
- if (!PageCompound(page) && bytes < hdr->good_bytes)
+ if (!PageCompound(page) && bytes < hdr->good_bytes &&
+ (dreq->flags == NFS_ODIRECT_SHOULD_DIRTY))
set_page_dirty(page);
bytes += req->wb_bytes;
nfs_list_remove_request(req);
@@ -587,6 +591,9 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter)
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
+ if (iter_is_iovec(iter))
+ dreq->flags = NFS_ODIRECT_SHOULD_DIRTY;
+
nfs_start_io_direct(inode);
NFS_I(inode)->read_io += count;
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 86bcba40ca61..310d7500f665 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1361,12 +1361,7 @@ static void ff_layout_read_prepare_v4(struct rpc_task *task, void *data)
task))
return;
- if (ff_layout_read_prepare_common(task, hdr))
- return;
-
- if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
- hdr->args.lock_context, FMODE_READ) == -EIO)
- rpc_exit(task, -EIO); /* lost lock, terminate I/O */
+ ff_layout_read_prepare_common(task, hdr);
}
static void ff_layout_read_call_done(struct rpc_task *task, void *data)
@@ -1542,12 +1537,7 @@ static void ff_layout_write_prepare_v4(struct rpc_task *task, void *data)
task))
return;
- if (ff_layout_write_prepare_common(task, hdr))
- return;
-
- if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
- hdr->args.lock_context, FMODE_WRITE) == -EIO)
- rpc_exit(task, -EIO); /* lost lock, terminate I/O */
+ ff_layout_write_prepare_common(task, hdr);
}
static void ff_layout_write_call_done(struct rpc_task *task, void *data)
@@ -1742,6 +1732,11 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
fh = nfs4_ff_layout_select_ds_fh(lseg, idx);
if (fh)
hdr->args.fh = fh;
+
+ if (vers == 4 &&
+ !nfs4_ff_layout_select_ds_stateid(lseg, idx, &hdr->args.stateid))
+ goto out_failed;
+
/*
* Note that if we ever decide to split across DSes,
* then we may need to handle dense-like offsets.
@@ -1804,6 +1799,10 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
if (fh)
hdr->args.fh = fh;
+ if (vers == 4 &&
+ !nfs4_ff_layout_select_ds_stateid(lseg, idx, &hdr->args.stateid))
+ goto out_failed;
+
/*
* Note that if we ever decide to split across DSes,
* then we may need to handle dense-like offsets.
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h
index 411798346e48..de50a342d5a5 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.h
+++ b/fs/nfs/flexfilelayout/flexfilelayout.h
@@ -215,6 +215,10 @@ unsigned int ff_layout_fetch_ds_ioerr(struct pnfs_layout_hdr *lo,
unsigned int maxnum);
struct nfs_fh *
nfs4_ff_layout_select_ds_fh(struct pnfs_layout_segment *lseg, u32 mirror_idx);
+int
+nfs4_ff_layout_select_ds_stateid(struct pnfs_layout_segment *lseg,
+ u32 mirror_idx,
+ nfs4_stateid *stateid);
struct nfs4_pnfs_ds *
nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 74d8d5352438..d23347389626 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -370,6 +370,25 @@ out:
return fh;
}
+int
+nfs4_ff_layout_select_ds_stateid(struct pnfs_layout_segment *lseg,
+ u32 mirror_idx,
+ nfs4_stateid *stateid)
+{
+ struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, mirror_idx);
+
+ if (!ff_layout_mirror_valid(lseg, mirror, false)) {
+ pr_err_ratelimited("NFS: %s: No data server for mirror offset index %d\n",
+ __func__, mirror_idx);
+ goto out;
+ }
+
+ nfs4_stateid_copy(stateid, &mirror->stateid);
+ return 1;
+out:
+ return 0;
+}
+
/**
* nfs4_ff_layout_prepare_ds - prepare a DS connection for an RPC call
* @lseg: the layout segment we're operating on
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index ac5b784a1de0..fed06fd9998d 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -137,31 +137,32 @@ static int handle_async_copy(struct nfs42_copy_res *res,
struct file *dst,
nfs4_stateid *src_stateid)
{
- struct nfs4_copy_state *copy;
+ struct nfs4_copy_state *copy, *tmp_copy;
int status = NFS4_OK;
bool found_pending = false;
struct nfs_open_context *ctx = nfs_file_open_context(dst);
+ copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_NOFS);
+ if (!copy)
+ return -ENOMEM;
+
spin_lock(&server->nfs_client->cl_lock);
- list_for_each_entry(copy, &server->nfs_client->pending_cb_stateids,
+ list_for_each_entry(tmp_copy, &server->nfs_client->pending_cb_stateids,
copies) {
- if (memcmp(&res->write_res.stateid, &copy->stateid,
+ if (memcmp(&res->write_res.stateid, &tmp_copy->stateid,
NFS4_STATEID_SIZE))
continue;
found_pending = true;
- list_del(&copy->copies);
+ list_del(&tmp_copy->copies);
break;
}
if (found_pending) {
spin_unlock(&server->nfs_client->cl_lock);
+ kfree(copy);
+ copy = tmp_copy;
goto out;
}
- copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_NOFS);
- if (!copy) {
- spin_unlock(&server->nfs_client->cl_lock);
- return -ENOMEM;
- }
memcpy(&copy->stateid, &res->write_res.stateid, NFS4_STATEID_SIZE);
init_completion(&copy->completion);
copy->parent_state = ctx->state;
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 8d59c9655ec4..1b994b527518 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -41,6 +41,8 @@ enum nfs4_client_state {
NFS4CLNT_MOVED,
NFS4CLNT_LEASE_MOVED,
NFS4CLNT_DELEGATION_EXPIRED,
+ NFS4CLNT_RUN_MANAGER,
+ NFS4CLNT_DELEGRETURN_RUNNING,
};
#define NFS4_RENEW_TIMEOUT 0x01
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 867457d6dfbe..0ba2b0fb8ff3 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6311,7 +6311,8 @@ static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl,
/* Ensure we don't close file until we're done freeing locks! */
p->ctx = get_nfs_open_context(ctx);
p->l_ctx = nfs_get_lock_context(ctx);
- memcpy(&p->fl, fl, sizeof(p->fl));
+ locks_init_lock(&p->fl);
+ locks_copy_lock(&p->fl, fl);
p->server = NFS_SERVER(inode);
return p;
}
@@ -6533,7 +6534,8 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
p->server = server;
refcount_inc(&lsp->ls_count);
p->ctx = get_nfs_open_context(ctx);
- memcpy(&p->fl, fl, sizeof(p->fl));
+ locks_init_lock(&p->fl);
+ locks_copy_lock(&p->fl, fl);
return p;
out_free_seqid:
nfs_free_seqid(p->arg.open_seqid);
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 62ae0fd345ad..d8decf2ec48f 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1210,6 +1210,7 @@ void nfs4_schedule_state_manager(struct nfs_client *clp)
struct task_struct *task;
char buf[INET6_ADDRSTRLEN + sizeof("-manager") + 1];
+ set_bit(NFS4CLNT_RUN_MANAGER, &clp->cl_state);
if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
return;
__module_get(THIS_MODULE);
@@ -2503,6 +2504,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* Ensure exclusive access to NFSv4 state */
do {
+ clear_bit(NFS4CLNT_RUN_MANAGER, &clp->cl_state);
if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
section = "purge state";
status = nfs4_purge_lease(clp);
@@ -2593,19 +2595,24 @@ static void nfs4_state_manager(struct nfs_client *clp)
}
nfs4_end_drain_session(clp);
- if (test_and_clear_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state)) {
- nfs_client_return_marked_delegations(clp);
- continue;
+ nfs4_clear_state_manager_bit(clp);
+
+ if (!test_and_set_bit(NFS4CLNT_DELEGRETURN_RUNNING, &clp->cl_state)) {
+ if (test_and_clear_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state)) {
+ nfs_client_return_marked_delegations(clp);
+ set_bit(NFS4CLNT_RUN_MANAGER, &clp->cl_state);
+ }
+ clear_bit(NFS4CLNT_DELEGRETURN_RUNNING, &clp->cl_state);
}
- nfs4_clear_state_manager_bit(clp);
/* Did we race with an attempt to give us more work? */
- if (clp->cl_state == 0)
- break;
+ if (!test_bit(NFS4CLNT_RUN_MANAGER, &clp->cl_state))
+ return;
if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
- break;
- } while (refcount_read(&clp->cl_count) > 1);
- return;
+ return;
+ } while (refcount_read(&clp->cl_count) > 1 && !signalled());
+ goto out_drain;
+
out_error:
if (strlen(section))
section_sep = ": ";
@@ -2613,6 +2620,7 @@ out_error:
" with error %d\n", section_sep, section,
clp->cl_hostname, -status);
ssleep(1);
+out_drain:
nfs4_end_drain_session(clp);
nfs4_clear_state_manager_bit(clp);
}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 586726a590d8..4f15665f0ad1 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -2121,7 +2121,7 @@ int __init nfs_init_writepagecache(void)
* This allows larger machines to have larger/more transfers.
* Limit the default to 256M
*/
- nfs_congestion_kb = (16*int_sqrt(totalram_pages)) << (PAGE_SHIFT-10);
+ nfs_congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10);
if (nfs_congestion_kb > 256*1024)
nfs_congestion_kb = 256*1024;
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