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-rw-r--r--fs/nfs/blocklayout/rpc_pipefs.c53
-rw-r--r--fs/nfs/file.c21
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c118
-rw-r--r--fs/nfs/inode.c17
-rw-r--r--fs/nfs/internal.h2
-rw-r--r--fs/nfs/nfs4file.c2
-rw-r--r--fs/nfs/nfs4idmap.c14
-rw-r--r--fs/nfs/pnfs.c4
-rw-r--r--fs/nfs/super.c2
9 files changed, 137 insertions, 96 deletions
diff --git a/fs/nfs/blocklayout/rpc_pipefs.c b/fs/nfs/blocklayout/rpc_pipefs.c
index d8d50a88de04..d526f5ba7887 100644
--- a/fs/nfs/blocklayout/rpc_pipefs.c
+++ b/fs/nfs/blocklayout/rpc_pipefs.c
@@ -141,24 +141,18 @@ static const struct rpc_pipe_ops bl_upcall_ops = {
.destroy_msg = bl_pipe_destroy_msg,
};
-static struct dentry *nfs4blocklayout_register_sb(struct super_block *sb,
+static int nfs4blocklayout_register_sb(struct super_block *sb,
struct rpc_pipe *pipe)
{
- struct dentry *dir, *dentry;
+ struct dentry *dir;
+ int err;
dir = rpc_d_lookup_sb(sb, NFS_PIPE_DIRNAME);
if (dir == NULL)
- return ERR_PTR(-ENOENT);
- dentry = rpc_mkpipe_dentry(dir, "blocklayout", NULL, pipe);
+ return -ENOENT;
+ err = rpc_mkpipe_dentry(dir, "blocklayout", NULL, pipe);
dput(dir);
- return dentry;
-}
-
-static void nfs4blocklayout_unregister_sb(struct super_block *sb,
- struct rpc_pipe *pipe)
-{
- if (pipe->dentry)
- rpc_unlink(pipe->dentry);
+ return err;
}
static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
@@ -167,7 +161,6 @@ static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
struct super_block *sb = ptr;
struct net *net = sb->s_fs_info;
struct nfs_net *nn = net_generic(net, nfs_net_id);
- struct dentry *dentry;
int ret = 0;
if (!try_module_get(THIS_MODULE))
@@ -180,16 +173,10 @@ static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
switch (event) {
case RPC_PIPEFS_MOUNT:
- dentry = nfs4blocklayout_register_sb(sb, nn->bl_device_pipe);
- if (IS_ERR(dentry)) {
- ret = PTR_ERR(dentry);
- break;
- }
- nn->bl_device_pipe->dentry = dentry;
+ ret = nfs4blocklayout_register_sb(sb, nn->bl_device_pipe);
break;
case RPC_PIPEFS_UMOUNT:
- if (nn->bl_device_pipe->dentry)
- nfs4blocklayout_unregister_sb(sb, nn->bl_device_pipe);
+ rpc_unlink(nn->bl_device_pipe);
break;
default:
ret = -ENOTSUPP;
@@ -203,18 +190,17 @@ static struct notifier_block nfs4blocklayout_block = {
.notifier_call = rpc_pipefs_event,
};
-static struct dentry *nfs4blocklayout_register_net(struct net *net,
- struct rpc_pipe *pipe)
+static int nfs4blocklayout_register_net(struct net *net, struct rpc_pipe *pipe)
{
struct super_block *pipefs_sb;
- struct dentry *dentry;
+ int ret;
pipefs_sb = rpc_get_sb_net(net);
if (!pipefs_sb)
- return NULL;
- dentry = nfs4blocklayout_register_sb(pipefs_sb, pipe);
+ return 0;
+ ret = nfs4blocklayout_register_sb(pipefs_sb, pipe);
rpc_put_sb_net(net);
- return dentry;
+ return ret;
}
static void nfs4blocklayout_unregister_net(struct net *net,
@@ -224,7 +210,7 @@ static void nfs4blocklayout_unregister_net(struct net *net,
pipefs_sb = rpc_get_sb_net(net);
if (pipefs_sb) {
- nfs4blocklayout_unregister_sb(pipefs_sb, pipe);
+ rpc_unlink(pipe);
rpc_put_sb_net(net);
}
}
@@ -232,20 +218,17 @@ static void nfs4blocklayout_unregister_net(struct net *net,
static int nfs4blocklayout_net_init(struct net *net)
{
struct nfs_net *nn = net_generic(net, nfs_net_id);
- struct dentry *dentry;
+ int err;
mutex_init(&nn->bl_mutex);
init_waitqueue_head(&nn->bl_wq);
nn->bl_device_pipe = rpc_mkpipe_data(&bl_upcall_ops, 0);
if (IS_ERR(nn->bl_device_pipe))
return PTR_ERR(nn->bl_device_pipe);
- dentry = nfs4blocklayout_register_net(net, nn->bl_device_pipe);
- if (IS_ERR(dentry)) {
+ err = nfs4blocklayout_register_net(net, nn->bl_device_pipe);
+ if (unlikely(err))
rpc_destroy_pipe_data(nn->bl_device_pipe);
- return PTR_ERR(dentry);
- }
- nn->bl_device_pipe->dentry = dentry;
- return 0;
+ return err;
}
static void nfs4blocklayout_net_exit(struct net *net)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 033feeab8c34..86e36c630f09 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -207,24 +207,25 @@ nfs_file_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe
EXPORT_SYMBOL_GPL(nfs_file_splice_read);
int
-nfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+nfs_file_mmap_prepare(struct vm_area_desc *desc)
{
+ struct file *file = desc->file;
struct inode *inode = file_inode(file);
int status;
dprintk("NFS: mmap(%pD2)\n", file);
- /* Note: generic_file_mmap() returns ENOSYS on nommu systems
+ /* Note: generic_file_mmap_prepare() returns ENOSYS on nommu systems
* so we call that before revalidating the mapping
*/
- status = generic_file_mmap(file, vma);
+ status = generic_file_mmap_prepare(desc);
if (!status) {
- vma->vm_ops = &nfs_file_vm_ops;
+ desc->vm_ops = &nfs_file_vm_ops;
status = nfs_revalidate_mapping(inode, file->f_mapping);
}
return status;
}
-EXPORT_SYMBOL_GPL(nfs_file_mmap);
+EXPORT_SYMBOL_GPL(nfs_file_mmap_prepare);
/*
* Flush any dirty pages for this process, and check for write errors.
@@ -342,12 +343,14 @@ static bool nfs_want_read_modify_write(struct file *file, struct folio *folio,
* If the writer ends up delaying the write, the writer needs to
* increment the page use counts until he is done with the page.
*/
-static int nfs_write_begin(struct file *file, struct address_space *mapping,
+static int nfs_write_begin(const struct kiocb *iocb,
+ struct address_space *mapping,
loff_t pos, unsigned len, struct folio **foliop,
void **fsdata)
{
fgf_t fgp = FGP_WRITEBEGIN;
struct folio *folio;
+ struct file *file = iocb->ki_filp;
int once_thru = 0;
int ret;
@@ -377,10 +380,12 @@ start:
return ret;
}
-static int nfs_write_end(struct file *file, struct address_space *mapping,
+static int nfs_write_end(const struct kiocb *iocb,
+ struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct folio *folio, void *fsdata)
{
+ struct file *file = iocb->ki_filp;
struct nfs_open_context *ctx = nfs_file_open_context(file);
unsigned offset = offset_in_folio(folio, pos);
int status;
@@ -899,7 +904,7 @@ const struct file_operations nfs_file_operations = {
.llseek = nfs_file_llseek,
.read_iter = nfs_file_read,
.write_iter = nfs_file_write,
- .mmap = nfs_file_mmap,
+ .mmap_prepare = nfs_file_mmap_prepare,
.open = nfs_file_open,
.flush = nfs_file_flush,
.release = nfs_file_release,
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index df4807460596..4bea008dbebd 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1105,6 +1105,7 @@ static void ff_layout_reset_read(struct nfs_pgio_header *hdr)
}
static int ff_layout_async_handle_error_v4(struct rpc_task *task,
+ u32 op_status,
struct nfs4_state *state,
struct nfs_client *clp,
struct pnfs_layout_segment *lseg,
@@ -1115,34 +1116,42 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
- switch (task->tk_status) {
- case -NFS4ERR_BADSESSION:
- case -NFS4ERR_BADSLOT:
- case -NFS4ERR_BAD_HIGH_SLOT:
- case -NFS4ERR_DEADSESSION:
- case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
- case -NFS4ERR_SEQ_FALSE_RETRY:
- case -NFS4ERR_SEQ_MISORDERED:
+ switch (op_status) {
+ case NFS4_OK:
+ case NFS4ERR_NXIO:
+ break;
+ case NFSERR_PERM:
+ if (!task->tk_xprt)
+ break;
+ xprt_force_disconnect(task->tk_xprt);
+ goto out_retry;
+ case NFS4ERR_BADSESSION:
+ case NFS4ERR_BADSLOT:
+ case NFS4ERR_BAD_HIGH_SLOT:
+ case NFS4ERR_DEADSESSION:
+ case NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ case NFS4ERR_SEQ_FALSE_RETRY:
+ case NFS4ERR_SEQ_MISORDERED:
dprintk("%s ERROR %d, Reset session. Exchangeid "
"flags 0x%x\n", __func__, task->tk_status,
clp->cl_exchange_flags);
nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
- break;
- case -NFS4ERR_DELAY:
+ goto out_retry;
+ case NFS4ERR_DELAY:
nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY);
fallthrough;
- case -NFS4ERR_GRACE:
+ case NFS4ERR_GRACE:
rpc_delay(task, FF_LAYOUT_POLL_RETRY_MAX);
- break;
- case -NFS4ERR_RETRY_UNCACHED_REP:
- break;
+ goto out_retry;
+ case NFS4ERR_RETRY_UNCACHED_REP:
+ goto out_retry;
/* Invalidate Layout errors */
- case -NFS4ERR_PNFS_NO_LAYOUT:
- case -ESTALE: /* mapped NFS4ERR_STALE */
- case -EBADHANDLE: /* mapped NFS4ERR_BADHANDLE */
- case -EISDIR: /* mapped NFS4ERR_ISDIR */
- case -NFS4ERR_FHEXPIRED:
- case -NFS4ERR_WRONG_TYPE:
+ case NFS4ERR_PNFS_NO_LAYOUT:
+ case NFS4ERR_STALE:
+ case NFS4ERR_BADHANDLE:
+ case NFS4ERR_ISDIR:
+ case NFS4ERR_FHEXPIRED:
+ case NFS4ERR_WRONG_TYPE:
dprintk("%s Invalid layout error %d\n", __func__,
task->tk_status);
/*
@@ -1155,6 +1164,11 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
pnfs_destroy_layout(NFS_I(inode));
rpc_wake_up(&tbl->slot_tbl_waitq);
goto reset;
+ default:
+ break;
+ }
+
+ switch (task->tk_status) {
/* RPC connection errors */
case -ENETDOWN:
case -ENETUNREACH:
@@ -1174,27 +1188,56 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
nfs4_delete_deviceid(devid->ld, devid->nfs_client,
&devid->deviceid);
rpc_wake_up(&tbl->slot_tbl_waitq);
- fallthrough;
+ break;
default:
- if (ff_layout_avoid_mds_available_ds(lseg))
- return -NFS4ERR_RESET_TO_PNFS;
-reset:
- dprintk("%s Retry through MDS. Error %d\n", __func__,
- task->tk_status);
- return -NFS4ERR_RESET_TO_MDS;
+ break;
}
+
+ if (ff_layout_avoid_mds_available_ds(lseg))
+ return -NFS4ERR_RESET_TO_PNFS;
+reset:
+ dprintk("%s Retry through MDS. Error %d\n", __func__,
+ task->tk_status);
+ return -NFS4ERR_RESET_TO_MDS;
+
+out_retry:
task->tk_status = 0;
return -EAGAIN;
}
/* Retry all errors through either pNFS or MDS except for -EJUKEBOX */
static int ff_layout_async_handle_error_v3(struct rpc_task *task,
+ u32 op_status,
struct nfs_client *clp,
struct pnfs_layout_segment *lseg,
u32 idx)
{
struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
+ switch (op_status) {
+ case NFS_OK:
+ case NFSERR_NXIO:
+ break;
+ case NFSERR_PERM:
+ if (!task->tk_xprt)
+ break;
+ xprt_force_disconnect(task->tk_xprt);
+ goto out_retry;
+ case NFSERR_ACCES:
+ case NFSERR_BADHANDLE:
+ case NFSERR_FBIG:
+ case NFSERR_IO:
+ case NFSERR_NOSPC:
+ case NFSERR_ROFS:
+ case NFSERR_STALE:
+ goto out_reset_to_pnfs;
+ case NFSERR_JUKEBOX:
+ nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY);
+ goto out_retry;
+ default:
+ break;
+ }
+
switch (task->tk_status) {
/* File access problems. Don't mark the device as unavailable */
case -EACCES:
@@ -1218,6 +1261,7 @@ static int ff_layout_async_handle_error_v3(struct rpc_task *task,
nfs4_delete_deviceid(devid->ld, devid->nfs_client,
&devid->deviceid);
}
+out_reset_to_pnfs:
/* FIXME: Need to prevent infinite looping here. */
return -NFS4ERR_RESET_TO_PNFS;
out_retry:
@@ -1228,6 +1272,7 @@ out_retry:
}
static int ff_layout_async_handle_error(struct rpc_task *task,
+ u32 op_status,
struct nfs4_state *state,
struct nfs_client *clp,
struct pnfs_layout_segment *lseg,
@@ -1246,10 +1291,11 @@ static int ff_layout_async_handle_error(struct rpc_task *task,
switch (vers) {
case 3:
- return ff_layout_async_handle_error_v3(task, clp, lseg, idx);
- case 4:
- return ff_layout_async_handle_error_v4(task, state, clp,
+ return ff_layout_async_handle_error_v3(task, op_status, clp,
lseg, idx);
+ case 4:
+ return ff_layout_async_handle_error_v4(task, op_status, state,
+ clp, lseg, idx);
default:
/* should never happen */
WARN_ON_ONCE(1);
@@ -1302,6 +1348,7 @@ static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
switch (status) {
case NFS4ERR_DELAY:
case NFS4ERR_GRACE:
+ case NFS4ERR_PERM:
break;
case NFS4ERR_NXIO:
ff_layout_mark_ds_unreachable(lseg, idx);
@@ -1334,7 +1381,8 @@ static int ff_layout_read_done_cb(struct rpc_task *task,
trace_ff_layout_read_error(hdr, task->tk_status);
}
- err = ff_layout_async_handle_error(task, hdr->args.context->state,
+ err = ff_layout_async_handle_error(task, hdr->res.op_status,
+ hdr->args.context->state,
hdr->ds_clp, hdr->lseg,
hdr->pgio_mirror_idx);
@@ -1507,7 +1555,8 @@ static int ff_layout_write_done_cb(struct rpc_task *task,
trace_ff_layout_write_error(hdr, task->tk_status);
}
- err = ff_layout_async_handle_error(task, hdr->args.context->state,
+ err = ff_layout_async_handle_error(task, hdr->res.op_status,
+ hdr->args.context->state,
hdr->ds_clp, hdr->lseg,
hdr->pgio_mirror_idx);
@@ -1556,8 +1605,9 @@ static int ff_layout_commit_done_cb(struct rpc_task *task,
trace_ff_layout_commit_error(data, task->tk_status);
}
- err = ff_layout_async_handle_error(task, NULL, data->ds_clp,
- data->lseg, data->ds_commit_index);
+ err = ff_layout_async_handle_error(task, data->res.op_status,
+ NULL, data->ds_clp, data->lseg,
+ data->ds_commit_index);
trace_nfs4_pnfs_commit_ds(data, err);
switch (err) {
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 8ab7868807a7..a2fa6bc4d74e 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -2589,15 +2589,26 @@ EXPORT_SYMBOL_GPL(nfs_net_id);
static int nfs_net_init(struct net *net)
{
struct nfs_net *nn = net_generic(net, nfs_net_id);
+ int err;
nfs_clients_init(net);
if (!rpc_proc_register(net, &nn->rpcstats)) {
- nfs_clients_exit(net);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto err_proc_rpc;
}
- return nfs_fs_proc_net_init(net);
+ err = nfs_fs_proc_net_init(net);
+ if (err)
+ goto err_proc_nfs;
+
+ return 0;
+
+err_proc_nfs:
+ rpc_proc_unregister(net, "nfs");
+err_proc_rpc:
+ nfs_clients_exit(net);
+ return err;
}
static void nfs_net_exit(struct net *net)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 69c2c10ee658..26551ff09a52 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -432,7 +432,7 @@ loff_t nfs_file_llseek(struct file *, loff_t, int);
ssize_t nfs_file_read(struct kiocb *, struct iov_iter *);
ssize_t nfs_file_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe,
size_t len, unsigned int flags);
-int nfs_file_mmap(struct file *, struct vm_area_struct *);
+int nfs_file_mmap_prepare(struct vm_area_desc *);
ssize_t nfs_file_write(struct kiocb *, struct iov_iter *);
int nfs_file_release(struct inode *, struct file *);
int nfs_lock(struct file *, int, struct file_lock *);
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 5e9d66f3466c..5c749b6117bb 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -456,7 +456,7 @@ static int nfs4_setlease(struct file *file, int arg, struct file_lease **lease,
const struct file_operations nfs4_file_operations = {
.read_iter = nfs_file_read,
.write_iter = nfs_file_write,
- .mmap = nfs_file_mmap,
+ .mmap_prepare = nfs_file_mmap_prepare,
.open = nfs4_file_open,
.flush = nfs4_file_flush,
.release = nfs_file_release,
diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index 25a7c771cfd8..00932500fce4 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -424,26 +424,16 @@ static void nfs_idmap_pipe_destroy(struct dentry *dir,
struct rpc_pipe_dir_object *pdo)
{
struct idmap *idmap = pdo->pdo_data;
- struct rpc_pipe *pipe = idmap->idmap_pipe;
- if (pipe->dentry) {
- rpc_unlink(pipe->dentry);
- pipe->dentry = NULL;
- }
+ rpc_unlink(idmap->idmap_pipe);
}
static int nfs_idmap_pipe_create(struct dentry *dir,
struct rpc_pipe_dir_object *pdo)
{
struct idmap *idmap = pdo->pdo_data;
- struct rpc_pipe *pipe = idmap->idmap_pipe;
- struct dentry *dentry;
- dentry = rpc_mkpipe_dentry(dir, "idmap", idmap, pipe);
- if (IS_ERR(dentry))
- return PTR_ERR(dentry);
- pipe->dentry = dentry;
- return 0;
+ return rpc_mkpipe_dentry(dir, "idmap", idmap, idmap->idmap_pipe);
}
static const struct rpc_pipe_dir_object_ops nfs_idmap_pipe_dir_object_ops = {
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 3adb7d0dbec7..1a7ec68bde15 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2059,8 +2059,10 @@ static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo)
static void nfs_layoutget_end(struct pnfs_layout_hdr *lo)
{
if (atomic_dec_and_test(&lo->plh_outstanding) &&
- test_and_clear_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags))
+ test_and_clear_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags)) {
+ smp_mb__after_atomic();
wake_up_bit(&lo->plh_flags, NFS_LAYOUT_DRAIN);
+ }
}
static bool pnfs_is_first_layoutget(struct pnfs_layout_hdr *lo)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 91b5503b6f74..72dee6f3050e 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1183,7 +1183,7 @@ static int nfs_set_super(struct super_block *s, struct fs_context *fc)
struct nfs_server *server = fc->s_fs_info;
int ret;
- s->s_d_op = server->nfs_client->rpc_ops->dentry_ops;
+ set_default_d_op(s, server->nfs_client->rpc_ops->dentry_ops);
ret = set_anon_super(s, server);
if (ret == 0)
server->s_dev = s->s_dev;
generated by cgit (git 2.34.1) at 2025-07-29 16:25:55 +0000