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-rw-r--r--fs/nfs/Makefile18
-rw-r--r--fs/nfs/client.c2
-rw-r--r--fs/nfs/file.c4
-rw-r--r--fs/nfs/idmap.c62
-rw-r--r--fs/nfs/inode.c2
-rw-r--r--fs/nfs/nfs3proc.c4
-rw-r--r--fs/nfs/nfs4_fs.h3
-rw-r--r--fs/nfs/nfs4client.c2
-rw-r--r--fs/nfs/nfs4file.c4
-rw-r--r--fs/nfs/nfs4proc.c127
-rw-r--r--fs/nfs/nfs4super.c15
-rw-r--r--fs/nfs/nfs4xdr.c41
-rw-r--r--fs/nfs/objlayout/objio_osd.c55
-rw-r--r--fs/nfs/pagelist.c2
-rw-r--r--fs/nfs/pnfs.c39
-rw-r--r--fs/nfs/pnfs.h2
-rw-r--r--fs/nfs/super.c41
-rw-r--r--fs/nfs/write.c15
18 files changed, 278 insertions, 160 deletions
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 8bf3a3f6925..b7db60897f9 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -12,19 +12,19 @@ nfs-$(CONFIG_ROOT_NFS) += nfsroot.o
nfs-$(CONFIG_SYSCTL) += sysctl.o
nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o
-obj-$(CONFIG_NFS_V2) += nfs2.o
-nfs2-y := nfs2super.o proc.o nfs2xdr.o
+obj-$(CONFIG_NFS_V2) += nfsv2.o
+nfsv2-y := nfs2super.o proc.o nfs2xdr.o
-obj-$(CONFIG_NFS_V3) += nfs3.o
-nfs3-y := nfs3super.o nfs3client.o nfs3proc.o nfs3xdr.o
-nfs3-$(CONFIG_NFS_V3_ACL) += nfs3acl.o
+obj-$(CONFIG_NFS_V3) += nfsv3.o
+nfsv3-y := nfs3super.o nfs3client.o nfs3proc.o nfs3xdr.o
+nfsv3-$(CONFIG_NFS_V3_ACL) += nfs3acl.o
-obj-$(CONFIG_NFS_V4) += nfs4.o
-nfs4-y := nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o nfs4super.o nfs4file.o \
+obj-$(CONFIG_NFS_V4) += nfsv4.o
+nfsv4-y := nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o nfs4super.o nfs4file.o \
delegation.o idmap.o callback.o callback_xdr.o callback_proc.o \
nfs4namespace.o nfs4getroot.o nfs4client.o
-nfs4-$(CONFIG_SYSCTL) += nfs4sysctl.o
-nfs4-$(CONFIG_NFS_V4_1) += pnfs.o pnfs_dev.o
+nfsv4-$(CONFIG_SYSCTL) += nfs4sysctl.o
+nfsv4-$(CONFIG_NFS_V4_1) += pnfs.o pnfs_dev.o
obj-$(CONFIG_PNFS_FILE_LAYOUT) += nfs_layout_nfsv41_files.o
nfs_layout_nfsv41_files-y := nfs4filelayout.o nfs4filelayoutdev.o
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 9fc0d9dfc91..99694442b93 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -105,7 +105,7 @@ struct nfs_subversion *get_nfs_version(unsigned int version)
if (IS_ERR(nfs)) {
mutex_lock(&nfs_version_mutex);
- request_module("nfs%d", version);
+ request_module("nfsv%d", version);
nfs = find_nfs_version(version);
mutex_unlock(&nfs_version_mutex);
}
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 75d6d0a3d32..6a7fcab7ecb 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -287,10 +287,12 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
struct inode *inode = file->f_path.dentry->d_inode;
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret != 0)
+ goto out;
mutex_lock(&inode->i_mutex);
ret = nfs_file_fsync_commit(file, start, end, datasync);
mutex_unlock(&inode->i_mutex);
-
+out:
return ret;
}
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index b701358c39c..a850079467d 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -61,6 +61,12 @@ struct idmap {
struct mutex idmap_mutex;
};
+struct idmap_legacy_upcalldata {
+ struct rpc_pipe_msg pipe_msg;
+ struct idmap_msg idmap_msg;
+ struct idmap *idmap;
+};
+
/**
* nfs_fattr_init_names - initialise the nfs_fattr owner_name/group_name fields
* @fattr: fully initialised struct nfs_fattr
@@ -324,6 +330,7 @@ static ssize_t nfs_idmap_get_key(const char *name, size_t namelen,
ret = nfs_idmap_request_key(&key_type_id_resolver_legacy,
name, namelen, type, data,
data_size, idmap);
+ idmap->idmap_key_cons = NULL;
mutex_unlock(&idmap->idmap_mutex);
}
return ret;
@@ -380,11 +387,13 @@ static const match_table_t nfs_idmap_tokens = {
static int nfs_idmap_legacy_upcall(struct key_construction *, const char *, void *);
static ssize_t idmap_pipe_downcall(struct file *, const char __user *,
size_t);
+static void idmap_release_pipe(struct inode *);
static void idmap_pipe_destroy_msg(struct rpc_pipe_msg *);
static const struct rpc_pipe_ops idmap_upcall_ops = {
.upcall = rpc_pipe_generic_upcall,
.downcall = idmap_pipe_downcall,
+ .release_pipe = idmap_release_pipe,
.destroy_msg = idmap_pipe_destroy_msg,
};
@@ -616,7 +625,8 @@ void nfs_idmap_quit(void)
nfs_idmap_quit_keyring();
}
-static int nfs_idmap_prepare_message(char *desc, struct idmap_msg *im,
+static int nfs_idmap_prepare_message(char *desc, struct idmap *idmap,
+ struct idmap_msg *im,
struct rpc_pipe_msg *msg)
{
substring_t substr;
@@ -659,6 +669,7 @@ static int nfs_idmap_legacy_upcall(struct key_construction *cons,
const char *op,
void *aux)
{
+ struct idmap_legacy_upcalldata *data;
struct rpc_pipe_msg *msg;
struct idmap_msg *im;
struct idmap *idmap = (struct idmap *)aux;
@@ -666,15 +677,15 @@ static int nfs_idmap_legacy_upcall(struct key_construction *cons,
int ret = -ENOMEM;
/* msg and im are freed in idmap_pipe_destroy_msg */
- msg = kmalloc(sizeof(*msg), GFP_KERNEL);
- if (!msg)
- goto out0;
-
- im = kmalloc(sizeof(*im), GFP_KERNEL);
- if (!im)
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
goto out1;
- ret = nfs_idmap_prepare_message(key->description, im, msg);
+ msg = &data->pipe_msg;
+ im = &data->idmap_msg;
+ data->idmap = idmap;
+
+ ret = nfs_idmap_prepare_message(key->description, idmap, im, msg);
if (ret < 0)
goto out2;
@@ -683,15 +694,15 @@ static int nfs_idmap_legacy_upcall(struct key_construction *cons,
ret = rpc_queue_upcall(idmap->idmap_pipe, msg);
if (ret < 0)
- goto out2;
+ goto out3;
return ret;
+out3:
+ idmap->idmap_key_cons = NULL;
out2:
- kfree(im);
+ kfree(data);
out1:
- kfree(msg);
-out0:
complete_request_key(cons, ret);
return ret;
}
@@ -749,9 +760,8 @@ idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
}
if (!(im.im_status & IDMAP_STATUS_SUCCESS)) {
- ret = mlen;
- complete_request_key(cons, -ENOKEY);
- goto out_incomplete;
+ ret = -ENOKEY;
+ goto out;
}
namelen_in = strnlen(im.im_name, IDMAP_NAMESZ);
@@ -768,16 +778,32 @@ idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
out:
complete_request_key(cons, ret);
-out_incomplete:
return ret;
}
static void
idmap_pipe_destroy_msg(struct rpc_pipe_msg *msg)
{
+ struct idmap_legacy_upcalldata *data = container_of(msg,
+ struct idmap_legacy_upcalldata,
+ pipe_msg);
+ struct idmap *idmap = data->idmap;
+ struct key_construction *cons;
+ if (msg->errno) {
+ cons = ACCESS_ONCE(idmap->idmap_key_cons);
+ idmap->idmap_key_cons = NULL;
+ complete_request_key(cons, msg->errno);
+ }
/* Free memory allocated in nfs_idmap_legacy_upcall() */
- kfree(msg->data);
- kfree(msg);
+ kfree(data);
+}
+
+static void
+idmap_release_pipe(struct inode *inode)
+{
+ struct rpc_inode *rpci = RPC_I(inode);
+ struct idmap *idmap = (struct idmap *)rpci->private;
+ idmap->idmap_key_cons = NULL;
}
int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *uid)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index c6e895f0fbf..9b47610338f 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -154,7 +154,7 @@ static void nfs_zap_caches_locked(struct inode *inode)
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = jiffies;
- memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
+ memset(NFS_I(inode)->cookieverf, 0, sizeof(NFS_I(inode)->cookieverf));
if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
else
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 0952c791df3..69322096c32 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -69,7 +69,7 @@ do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
nfs_fattr_init(info->fattr);
status = rpc_call_sync(client, &msg, 0);
dprintk("%s: reply fsinfo: %d\n", __func__, status);
- if (!(info->fattr->valid & NFS_ATTR_FATTR)) {
+ if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) {
msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
msg.rpc_resp = info->fattr;
status = rpc_call_sync(client, &msg, 0);
@@ -643,7 +643,7 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
u64 cookie, struct page **pages, unsigned int count, int plus)
{
struct inode *dir = dentry->d_inode;
- __be32 *verf = NFS_COOKIEVERF(dir);
+ __be32 *verf = NFS_I(dir)->cookieverf;
struct nfs3_readdirargs arg = {
.fh = NFS_FH(dir),
.cookie = cookie,
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 3b950dd81e8..da0618aeead 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -205,6 +205,9 @@ extern const struct dentry_operations nfs4_dentry_operations;
int nfs_atomic_open(struct inode *, struct dentry *, struct file *,
unsigned, umode_t, int *);
+/* super.c */
+extern struct file_system_type nfs4_fs_type;
+
/* nfs4namespace.c */
rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *);
struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *, struct inode *, struct qstr *);
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index cbcdfaf3250..24eb663f8ed 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -74,7 +74,7 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
return clp;
error:
- kfree(clp);
+ nfs_free_client(clp);
return ERR_PTR(err);
}
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index acb65e7887f..eb5eb8eef4d 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -96,13 +96,15 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
struct inode *inode = file->f_path.dentry->d_inode;
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret != 0)
+ goto out;
mutex_lock(&inode->i_mutex);
ret = nfs_file_fsync_commit(file, start, end, datasync);
if (!ret && !datasync)
/* application has asked for meta-data sync */
ret = pnfs_layoutcommit_inode(inode, true);
mutex_unlock(&inode->i_mutex);
-
+out:
return ret;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a99a8d94872..1e50326d00d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3215,11 +3215,11 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
dentry->d_parent->d_name.name,
dentry->d_name.name,
(unsigned long long)cookie);
- nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args);
+ nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args);
res.pgbase = args.pgbase;
status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0);
if (status >= 0) {
- memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE);
+ memcpy(NFS_I(dir)->cookieverf, res.verifier.data, NFS4_VERIFIER_SIZE);
status += args.pgbase;
}
@@ -3653,11 +3653,11 @@ static inline int nfs4_server_supports_acls(struct nfs_server *server)
&& (server->acl_bitmask & ACL4_SUPPORT_DENY_ACL);
}
-/* Assuming that XATTR_SIZE_MAX is a multiple of PAGE_CACHE_SIZE, and that
- * it's OK to put sizeof(void) * (XATTR_SIZE_MAX/PAGE_CACHE_SIZE) bytes on
+/* Assuming that XATTR_SIZE_MAX is a multiple of PAGE_SIZE, and that
+ * it's OK to put sizeof(void) * (XATTR_SIZE_MAX/PAGE_SIZE) bytes on
* the stack.
*/
-#define NFS4ACL_MAXPAGES (XATTR_SIZE_MAX >> PAGE_CACHE_SHIFT)
+#define NFS4ACL_MAXPAGES DIV_ROUND_UP(XATTR_SIZE_MAX, PAGE_SIZE)
static int buf_to_pages_noslab(const void *buf, size_t buflen,
struct page **pages, unsigned int *pgbase)
@@ -3668,7 +3668,7 @@ static int buf_to_pages_noslab(const void *buf, size_t buflen,
spages = pages;
do {
- len = min_t(size_t, PAGE_CACHE_SIZE, buflen);
+ len = min_t(size_t, PAGE_SIZE, buflen);
newpage = alloc_page(GFP_KERNEL);
if (newpage == NULL)
@@ -3737,9 +3737,10 @@ out:
static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size_t pgbase, size_t acl_len)
{
struct nfs4_cached_acl *acl;
+ size_t buflen = sizeof(*acl) + acl_len;
- if (pages && acl_len <= PAGE_SIZE) {
- acl = kmalloc(sizeof(*acl) + acl_len, GFP_KERNEL);
+ if (buflen <= PAGE_SIZE) {
+ acl = kmalloc(buflen, GFP_KERNEL);
if (acl == NULL)
goto out;
acl->cached = 1;
@@ -3781,17 +3782,15 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
.rpc_argp = &args,
.rpc_resp = &res,
};
- int ret = -ENOMEM, npages, i;
- size_t acl_len = 0;
+ unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE);
+ int ret = -ENOMEM, i;
- npages = (buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
/* As long as we're doing a round trip to the server anyway,
* let's be prepared for a page of acl data. */
if (npages == 0)
npages = 1;
-
- /* Add an extra page to handle the bitmap returned */
- npages++;
+ if (npages > ARRAY_SIZE(pages))
+ return -ERANGE;
for (i = 0; i < npages; i++) {
pages[i] = alloc_page(GFP_KERNEL);
@@ -3807,11 +3806,6 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
args.acl_len = npages * PAGE_SIZE;
args.acl_pgbase = 0;
- /* Let decode_getfacl know not to fail if the ACL data is larger than
- * the page we send as a guess */
- if (buf == NULL)
- res.acl_flags |= NFS4_ACL_LEN_REQUEST;
-
dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n",
__func__, buf, buflen, npages, args.acl_len);
ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode),
@@ -3819,20 +3813,19 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
if (ret)
goto out_free;
- acl_len = res.acl_len - res.acl_data_offset;
- if (acl_len > args.acl_len)
- nfs4_write_cached_acl(inode, NULL, 0, acl_len);
- else
- nfs4_write_cached_acl(inode, pages, res.acl_data_offset,
- acl_len);
- if (buf) {
+ /* Handle the case where the passed-in buffer is too short */
+ if (res.acl_flags & NFS4_ACL_TRUNC) {
+ /* Did the user only issue a request for the acl length? */
+ if (buf == NULL)
+ goto out_ok;
ret = -ERANGE;
- if (acl_len > buflen)
- goto out_free;
- _copy_from_pages(buf, pages, res.acl_data_offset,
- acl_len);
+ goto out_free;
}
- ret = acl_len;
+ nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len);
+ if (buf)
+ _copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len);
+out_ok:
+ ret = res.acl_len;
out_free:
for (i = 0; i < npages; i++)
if (pages[i])
@@ -3890,10 +3883,13 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl
.rpc_argp = &arg,
.rpc_resp = &res,
};
+ unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE);
int ret, i;
if (!nfs4_server_supports_acls(server))
return -EOPNOTSUPP;
+ if (npages > ARRAY_SIZE(pages))
+ return -ERANGE;
i = buf_to_pages_noslab(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
if (i < 0)
return i;
@@ -6223,11 +6219,58 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
dprintk("<-- %s\n", __func__);
}
+static size_t max_response_pages(struct nfs_server *server)
+{
+ u32 max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz;
+ return nfs_page_array_len(0, max_resp_sz);
+}
+
+static void nfs4_free_pages(struct page **pages, size_t size)
+{
+ int i;
+
+ if (!pages)
+ return;
+
+ for (i = 0; i < size; i++) {
+ if (!pages[i])
+ break;
+ __free_page(pages[i]);
+ }
+ kfree(pages);
+}
+
+static struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags)
+{
+ struct page **pages;
+ int i;
+
+ pages = kcalloc(size, sizeof(struct page *), gfp_flags);
+ if (!pages) {
+ dprintk("%s: can't alloc array of %zu pages\n", __func__, size);
+ return NULL;
+ }
+
+ for (i = 0; i < size; i++) {
+ pages[i] = alloc_page(gfp_flags);
+ if (!pages[i]) {
+ dprintk("%s: failed to allocate page\n", __func__);
+ nfs4_free_pages(pages, size);
+ return NULL;
+ }
+ }
+
+ return pages;
+}
+
static void nfs4_layoutget_release(void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
+ struct nfs_server *server = NFS_SERVER(lgp->args.inode);
+ size_t max_pages = max_response_pages(server);
dprintk("--> %s\n", __func__);
+ nfs4_free_pages(lgp->args.layout.pages, max_pages);
put_nfs_open_context(lgp->args.ctx);
kfree(calldata);
dprintk("<-- %s\n", __func__);
@@ -6239,9 +6282,10 @@ static const struct rpc_call_ops nfs4_layoutget_call_ops = {
.rpc_release = nfs4_layoutget_release,
};
-int nfs4_proc_layoutget(struct nfs4_layoutget *lgp)
+void nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
{
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
+ size_t max_pages = max_response_pages(server);
struct rpc_task *task;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTGET],
@@ -6259,12 +6303,19 @@ int nfs4_proc_layoutget(struct nfs4_layoutget *lgp)
dprintk("--> %s\n", __func__);
+ lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
+ if (!lgp->args.layout.pages) {
+ nfs4_layoutget_release(lgp);
+ return;
+ }
+ lgp->args.layout.pglen = max_pages * PAGE_SIZE;
+
lgp->res.layoutp = &lgp->args.layout;
lgp->res.seq_res.sr_slot = NULL;
nfs41_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
- return PTR_ERR(task);
+ return;
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0)
status = task->tk_status;
@@ -6272,7 +6323,7 @@ int nfs4_proc_layoutget(struct nfs4_layoutget *lgp)
status = pnfs_layout_process(lgp);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
- return status;
+ return;
}
static void
@@ -6304,12 +6355,8 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata)
return;
}
spin_lock(&lo->plh_inode->i_lock);
- if (task->tk_status == 0) {
- if (lrp->res.lrs_present) {
- pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
- } else
- BUG_ON(!list_empty(&lo->plh_segs));
- }
+ if (task->tk_status == 0 && lrp->res.lrs_present)
+ pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
lo->plh_block_lgets--;
spin_unlock(&lo->plh_inode->i_lock);
dprintk("<-- %s\n", __func__);
diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index 12a31a9dbcd..bd61221ad2c 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -23,14 +23,6 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
static struct dentry *nfs4_remote_referral_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data);
-static struct file_system_type nfs4_fs_type = {
- .owner = THIS_MODULE,
- .name = "nfs4",
- .mount = nfs_fs_mount,
- .kill_sb = nfs_kill_super,
- .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
-};
-
static struct file_system_type nfs4_remote_fs_type = {
.owner = THIS_MODULE,
.name = "nfs4",
@@ -344,14 +336,8 @@ static int __init init_nfs_v4(void)
if (err)
goto out1;
- err = register_filesystem(&nfs4_fs_type);
- if (err < 0)
- goto out2;
-
register_nfs_version(&nfs_v4);
return 0;
-out2:
- nfs4_unregister_sysctl();
out1:
nfs_idmap_quit();
out:
@@ -361,7 +347,6 @@ out:
static void __exit exit_nfs_v4(void)
{
unregister_nfs_version(&nfs_v4);
- unregister_filesystem(&nfs4_fs_type);
nfs4_unregister_sysctl();
nfs_idmap_quit();
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index ca13483edd6..8dba6bd4855 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -5045,22 +5045,19 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
struct nfs_getaclres *res)
{
unsigned int savep;
- __be32 *bm_p;
uint32_t attrlen,
bitmap[3] = {0};
int status;
- size_t page_len = xdr->buf->page_len;
+ unsigned int pg_offset;
res->acl_len = 0;
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
goto out;
- bm_p = xdr->p;
- res->acl_data_offset = be32_to_cpup(bm_p) + 2;
- res->acl_data_offset <<= 2;
- /* Check if the acl data starts beyond the allocated buffer */
- if (res->acl_data_offset > page_len)
- return -ERANGE;
+ xdr_enter_page(xdr, xdr->buf->page_len);
+
+ /* Calculate the offset of the page data */
+ pg_offset = xdr->buf->head[0].iov_len;
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
goto out;
@@ -5074,23 +5071,16 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
/* The bitmap (xdr len + bitmaps) and the attr xdr len words
* are stored with the acl data to handle the problem of
* variable length bitmaps.*/
- xdr->p = bm_p;
-
- /* We ignore &savep and don't do consistency checks on
- * the attr length. Let userspace figure it out.... */
- attrlen += res->acl_data_offset;
- if (attrlen > page_len) {
- if (res->acl_flags & NFS4_ACL_LEN_REQUEST) {
- /* getxattr interface called with a NULL buf */
- res->acl_len = attrlen;
- goto out;
- }
- dprintk("NFS: acl reply: attrlen %u > page_len %zu\n",
- attrlen, page_len);
- return -EINVAL;
- }
- xdr_read_pages(xdr, attrlen);
+ res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset;
res->acl_len = attrlen;
+
+ /* Check for receive buffer overflow */
+ if (res->acl_len > (xdr->nwords << 2) ||
+ res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
+ res->acl_flags |= NFS4_ACL_TRUNC;
+ dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
+ attrlen, xdr->nwords << 2);
+ }
} else
status = -EOPNOTSUPP;
@@ -6235,7 +6225,8 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
status = decode_open(xdr, res);
if (status)
goto out;
- if (decode_getfh(xdr, &res->fh) != 0)
+ status = decode_getfh(xdr, &res->fh);
+ if (status)
goto out;
decode_getfattr(xdr, res->f_attr, res->server);
out:
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index f50d3e8d6f2..ea6d111b03e 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -570,17 +570,66 @@ static bool objio_pg_test(struct nfs_pageio_descriptor *pgio,
return false;
return pgio->pg_count + req->wb_bytes <=
- OBJIO_LSEG(pgio->pg_lseg)->layout.max_io_length;
+ (unsigned long)pgio->pg_layout_private;
+}
+
+void objio_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
+{
+ pnfs_generic_pg_init_read(pgio, req);
+ if (unlikely(pgio->pg_lseg == NULL))
+ return; /* Not pNFS */
+
+ pgio->pg_layout_private = (void *)
+ OBJIO_LSEG(pgio->pg_lseg)->layout.max_io_length;
+}
+
+static bool aligned_on_raid_stripe(u64 offset, struct ore_layout *layout,
+ unsigned long *stripe_end)
+{
+ u32 stripe_off;
+ unsigned stripe_size;
+
+ if (layout->raid_algorithm == PNFS_OSD_RAID_0)
+ return true;
+
+ stripe_size = layout->stripe_unit *
+ (layout->group_width - layout->parity);
+
+ div_u64_rem(offset, stripe_size, &stripe_off);
+ if (!stripe_off)
+ return true;
+
+ *stripe_end = stripe_size - stripe_off;
+ return false;
+}
+
+void objio_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
+{
+ unsigned long stripe_end = 0;
+
+ pnfs_generic_pg_init_write(pgio, req);
+ if (unlikely(pgio->pg_lseg == NULL))
+ return; /* Not pNFS */
+
+ if (req->wb_offset ||
+ !aligned_on_raid_stripe(req->wb_index * PAGE_SIZE,
+ &OBJIO_LSEG(pgio->pg_lseg)->layout,
+ &stripe_end)) {
+ pgio->pg_layout_private = (void *)stripe_end;
+ } else {
+ pgio->pg_layout_private = (void *)
+ OBJIO_LSEG(pgio->pg_lseg)->layout.max_io_length;
+ }
}
static const struct nfs_pageio_ops objio_pg_read_ops = {
- .pg_init = pnfs_generic_pg_init_read,
+ .pg_init = objio_init_read,
.pg_test = objio_pg_test,
.pg_doio = pnfs_generic_pg_readpages,
};
static const struct nfs_pageio_ops objio_pg_write_ops = {
- .pg_init = pnfs_generic_pg_init_write,
+ .pg_init = objio_init_write,
.pg_test = objio_pg_test,
.pg_doio = pnfs_generic_pg_writepages,
};
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 1a6732ed04a..311a79681e2 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -49,6 +49,7 @@ void nfs_pgheader_init(struct nfs_pageio_descriptor *desc,
hdr->io_start = req_offset(hdr->req);
hdr->good_bytes = desc->pg_count;
hdr->dreq = desc->pg_dreq;
+ hdr->layout_private = desc->pg_layout_private;
hdr->release = release;
hdr->completion_ops = desc->pg_completion_ops;
if (hdr->completion_ops->init_hdr)
@@ -268,6 +269,7 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
desc->pg_error = 0;
desc->pg_lseg = NULL;
desc->pg_dreq = NULL;
+ desc->pg_layout_private = NULL;
}
EXPORT_SYMBOL_GPL(nfs_pageio_init);
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 76875bfcf19..2e00feacd4b 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -583,9 +583,6 @@ send_layoutget(struct pnfs_layout_hdr *lo,
struct nfs_server *server = NFS_SERVER(ino);
struct nfs4_layoutget *lgp;
struct pnfs_layout_segment *lseg = NULL;
- struct page **pages = NULL;
- int i;
- u32 max_resp_sz, max_pages;
dprintk("--> %s\n", __func__);
@@ -594,20 +591,6 @@ send_layoutget(struct pnfs_layout_hdr *lo,
if (lgp == NULL)
return NULL;
- /* allocate pages for xdr post processing */
- max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz;
- max_pages = nfs_page_array_len(0, max_resp_sz);
-
- pages = kcalloc(max_pages, sizeof(struct page *), gfp_flags);
- if (!pages)
- goto out_err_free;
-
- for (i = 0; i < max_pages; i++) {
- pages[i] = alloc_page(gfp_flags);
- if (!pages[i])
- goto out_err_free;
- }
-
lgp->args.minlength = PAGE_CACHE_SIZE;
if (lgp->args.minlength > range->length)
lgp->args.minlength = range->length;
@@ -616,39 +599,19 @@ send_layoutget(struct pnfs_layout_hdr *lo,
lgp->args.type = server->pnfs_curr_ld->id;
lgp->args.inode = ino;
lgp->args.ctx = get_nfs_open_context(ctx);
- lgp->args.layout.pages = pages;
- lgp->args.layout.pglen = max_pages * PAGE_SIZE;
lgp->lsegpp = &lseg;
lgp->gfp_flags = gfp_flags;
/* Synchronously retrieve layout information from server and
* store in lseg.
*/
- nfs4_proc_layoutget(lgp);
+ nfs4_proc_layoutget(lgp, gfp_flags);
if (!lseg) {
/* remember that LAYOUTGET failed and suspend trying */
set_bit(lo_fail_bit(range->iomode), &lo->plh_flags);
}
- /* free xdr pages */
- for (i = 0; i < max_pages; i++)
- __free_page(pages[i]);
- kfree(pages);
-
return lseg;
-
-out_err_free:
- /* free any allocated xdr pages, lgp as it's not used */
- if (pages) {
- for (i = 0; i < max_pages; i++) {
- if (!pages[i])
- break;
- __free_page(pages[i]);
- }
- kfree(pages);
- }
- kfree(lgp);
- return NULL;
}
/*
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 2c6c80503ba..745aa1b39e7 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -172,7 +172,7 @@ extern int nfs4_proc_getdevicelist(struct nfs_server *server,
struct pnfs_devicelist *devlist);
extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *dev);
-extern int nfs4_proc_layoutget(struct nfs4_layoutget *lgp);
+extern void nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp);
/* pnfs.c */
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ac6a3c55dce..b8eda700584 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -319,6 +319,34 @@ EXPORT_SYMBOL_GPL(nfs_sops);
static void nfs4_validate_mount_flags(struct nfs_parsed_mount_data *);
static int nfs4_validate_mount_data(void *options,
struct nfs_parsed_mount_data *args, const char *dev_name);
+
+struct file_system_type nfs4_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "nfs4",
+ .mount = nfs_fs_mount,
+ .kill_sb = nfs_kill_super,
+ .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
+};
+EXPORT_SYMBOL_GPL(nfs4_fs_type);
+
+static int __init register_nfs4_fs(void)
+{
+ return register_filesystem(&nfs4_fs_type);
+}
+
+static void unregister_nfs4_fs(void)
+{
+ unregister_filesystem(&nfs4_fs_type);
+}
+#else
+static int __init register_nfs4_fs(void)
+{
+ return 0;
+}
+
+static void unregister_nfs4_fs(void)
+{
+}
#endif
static struct shrinker acl_shrinker = {
@@ -337,12 +365,18 @@ int __init register_nfs_fs(void)
if (ret < 0)
goto error_0;
- ret = nfs_register_sysctl();
+ ret = register_nfs4_fs();
if (ret < 0)
goto error_1;
+
+ ret = nfs_register_sysctl();
+ if (ret < 0)
+ goto error_2;
register_shrinker(&acl_shrinker);
return 0;
+error_2:
+ unregister_nfs4_fs();
error_1:
unregister_filesystem(&nfs_fs_type);
error_0:
@@ -356,6 +390,7 @@ void __exit unregister_nfs_fs(void)
{
unregister_shrinker(&acl_shrinker);
nfs_unregister_sysctl();
+ unregister_nfs4_fs();
unregister_filesystem(&nfs_fs_type);
}
@@ -1832,6 +1867,7 @@ static int nfs23_validate_mount_data(void *options,
memcpy(sap, &data->addr, sizeof(data->addr));
args->nfs_server.addrlen = sizeof(data->addr);
+ args->nfs_server.port = ntohs(data->addr.sin_port);
if (!nfs_verify_server_address(sap))
goto out_no_address;
@@ -2529,6 +2565,7 @@ static int nfs4_validate_mount_data(void *options,
return -EFAULT;
if (!nfs_verify_server_address(sap))
goto out_no_address;
+ args->nfs_server.port = ntohs(((struct sockaddr_in *)sap)->sin_port);
if (data->auth_flavourlen) {
if (data->auth_flavourlen > 1)
@@ -2645,4 +2682,6 @@ MODULE_PARM_DESC(max_session_slots, "Maximum number of outstanding NFSv4.1 "
module_param(send_implementation_id, ushort, 0644);
MODULE_PARM_DESC(send_implementation_id,
"Send implementation ID with NFSv4.1 exchange_id");
+MODULE_ALIAS("nfs4");
+
#endif /* CONFIG_NFS_V4 */
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 5829d0ce7cf..e3b55372726 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1814,19 +1814,19 @@ int __init nfs_init_writepagecache(void)
nfs_wdata_mempool = mempool_create_slab_pool(MIN_POOL_WRITE,
nfs_wdata_cachep);
if (nfs_wdata_mempool == NULL)
- return -ENOMEM;
+ goto out_destroy_write_cache;
nfs_cdata_cachep = kmem_cache_create("nfs_commit_data",
sizeof(struct nfs_commit_data),
0, SLAB_HWCACHE_ALIGN,
NULL);
if (nfs_cdata_cachep == NULL)
- return -ENOMEM;
+ goto out_destroy_write_mempool;
nfs_commit_mempool = mempool_create_slab_pool(MIN_POOL_COMMIT,
nfs_wdata_cachep);
if (nfs_commit_mempool == NULL)
- return -ENOMEM;
+ goto out_destroy_commit_cache;
/*
* NFS congestion size, scale with available memory.
@@ -1849,11 +1849,20 @@ int __init nfs_init_writepagecache(void)
nfs_congestion_kb = 256*1024;
return 0;
+
+out_destroy_commit_cache:
+ kmem_cache_destroy(nfs_cdata_cachep);
+out_destroy_write_mempool:
+ mempool_destroy(nfs_wdata_mempool);
+out_destroy_write_cache:
+ kmem_cache_destroy(nfs_wdata_cachep);
+ return -ENOMEM;
}
void nfs_destroy_writepagecache(void)
{
mempool_destroy(nfs_commit_mempool);
+ kmem_cache_destroy(nfs_cdata_cachep);
mempool_destroy(nfs_wdata_mempool);
kmem_cache_destroy(nfs_wdata_cachep);
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-28 08:58:43 +0000