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Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/callback.c18
-rw-r--r--fs/nfs/dir.c8
-rw-r--r--fs/nfs/getroot.c4
-rw-r--r--fs/nfs/namespace.c29
-rw-r--r--fs/nfs/nfs4proc.c8
-rw-r--r--fs/nfs/nfs4state.c4
-rw-r--r--fs/nfs/read.c10
-rw-r--r--fs/nfs/super.c4
-rw-r--r--fs/nfs/write.c24
9 files changed, 66 insertions, 43 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index bd185a572a2..ecc06c61949 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -105,7 +105,7 @@ static void nfs_callback_svc(struct svc_rqst *rqstp)
*/
int nfs_callback_up(void)
{
- struct svc_serv *serv;
+ struct svc_serv *serv = NULL;
int ret = 0;
lock_kernel();
@@ -122,24 +122,30 @@ int nfs_callback_up(void)
ret = svc_create_xprt(serv, "tcp", nfs_callback_set_tcpport,
SVC_SOCK_ANONYMOUS);
if (ret <= 0)
- goto out_destroy;
+ goto out_err;
nfs_callback_tcpport = ret;
dprintk("Callback port = 0x%x\n", nfs_callback_tcpport);
ret = svc_create_thread(nfs_callback_svc, serv);
if (ret < 0)
- goto out_destroy;
+ goto out_err;
nfs_callback_info.serv = serv;
wait_for_completion(&nfs_callback_info.started);
out:
+ /*
+ * svc_create creates the svc_serv with sv_nrthreads == 1, and then
+ * svc_create_thread increments that. So we need to call svc_destroy
+ * on both success and failure so that the refcount is 1 when the
+ * thread exits.
+ */
+ if (serv)
+ svc_destroy(serv);
mutex_unlock(&nfs_callback_mutex);
unlock_kernel();
return ret;
-out_destroy:
+out_err:
dprintk("Couldn't create callback socket or server thread; err = %d\n",
ret);
- svc_destroy(serv);
-out_err:
nfs_callback_info.users--;
goto out;
}
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 476cb0f837f..ae04892a5e5 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -154,7 +154,6 @@ typedef struct {
struct nfs_entry *entry;
decode_dirent_t decode;
int plus;
- int error;
unsigned long timestamp;
int timestamp_valid;
} nfs_readdir_descriptor_t;
@@ -213,7 +212,6 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
return 0;
error:
unlock_page(page);
- desc->error = error;
return -EIO;
}
@@ -483,13 +481,13 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
goto out;
}
timestamp = jiffies;
- desc->error = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred, *desc->dir_cookie,
- page,
+ status = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred,
+ *desc->dir_cookie, page,
NFS_SERVER(inode)->dtsize,
desc->plus);
desc->page = page;
desc->ptr = kmap(page); /* matching kunmap in nfs_do_filldir */
- if (desc->error >= 0) {
+ if (status >= 0) {
desc->timestamp = timestamp;
desc->timestamp_valid = 1;
if ((status = dir_decode(desc)) == 0)
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index e6242cdbaf9..fae97196daa 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -96,7 +96,7 @@ struct dentry *nfs_get_root(struct super_block *sb, struct nfs_fh *mntfh)
inode = nfs_fhget(sb, mntfh, fsinfo.fattr);
if (IS_ERR(inode)) {
dprintk("nfs_get_root: get root inode failed\n");
- return ERR_PTR(PTR_ERR(inode));
+ return ERR_CAST(inode);
}
error = nfs_superblock_set_dummy_root(sb, inode);
@@ -266,7 +266,7 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh)
inode = nfs_fhget(sb, mntfh, &fattr);
if (IS_ERR(inode)) {
dprintk("nfs_get_root: get root inode failed\n");
- return ERR_PTR(PTR_ERR(inode));
+ return ERR_CAST(inode);
}
error = nfs_superblock_set_dummy_root(sb, inode);
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index be4ce1c3a3d..607f6eb9cdb 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -107,38 +107,40 @@ static void * nfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
BUG_ON(IS_ROOT(dentry));
dprintk("%s: enter\n", __FUNCTION__);
- dput(nd->dentry);
- nd->dentry = dget(dentry);
+ dput(nd->path.dentry);
+ nd->path.dentry = dget(dentry);
/* Look it up again */
- parent = dget_parent(nd->dentry);
+ parent = dget_parent(nd->path.dentry);
err = server->nfs_client->rpc_ops->lookup(parent->d_inode,
- &nd->dentry->d_name,
+ &nd->path.dentry->d_name,
&fh, &fattr);
dput(parent);
if (err != 0)
goto out_err;
if (fattr.valid & NFS_ATTR_FATTR_V4_REFERRAL)
- mnt = nfs_do_refmount(nd->mnt, nd->dentry);
+ mnt = nfs_do_refmount(nd->path.mnt, nd->path.dentry);
else
- mnt = nfs_do_submount(nd->mnt, nd->dentry, &fh, &fattr);
+ mnt = nfs_do_submount(nd->path.mnt, nd->path.dentry, &fh,
+ &fattr);
err = PTR_ERR(mnt);
if (IS_ERR(mnt))
goto out_err;
mntget(mnt);
- err = do_add_mount(mnt, nd, nd->mnt->mnt_flags|MNT_SHRINKABLE, &nfs_automount_list);
+ err = do_add_mount(mnt, nd, nd->path.mnt->mnt_flags|MNT_SHRINKABLE,
+ &nfs_automount_list);
if (err < 0) {
mntput(mnt);
if (err == -EBUSY)
goto out_follow;
goto out_err;
}
- mntput(nd->mnt);
- dput(nd->dentry);
- nd->mnt = mnt;
- nd->dentry = dget(mnt->mnt_root);
+ mntput(nd->path.mnt);
+ dput(nd->path.dentry);
+ nd->path.mnt = mnt;
+ nd->path.dentry = dget(mnt->mnt_root);
schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout);
out:
dprintk("%s: done, returned %d\n", __FUNCTION__, err);
@@ -146,10 +148,11 @@ out:
dprintk("<-- nfs_follow_mountpoint() = %d\n", err);
return ERR_PTR(err);
out_err:
- path_release(nd);
+ path_put(&nd->path);
goto out;
out_follow:
- while(d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
+ while (d_mountpoint(nd->path.dentry) &&
+ follow_down(&nd->path.mnt, &nd->path.dentry))
;
err = 0;
goto out;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 027e1095256..7ce07862c2f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1384,11 +1384,11 @@ out_close:
struct dentry *
nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
- struct dentry *parent;
struct path path = {
- .mnt = nd->mnt,
+ .mnt = nd->path.mnt,
.dentry = dentry,
};
+ struct dentry *parent;
struct iattr attr;
struct rpc_cred *cred;
struct nfs4_state *state;
@@ -1433,7 +1433,7 @@ int
nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, struct nameidata *nd)
{
struct path path = {
- .mnt = nd->mnt,
+ .mnt = nd->path.mnt,
.dentry = dentry,
};
struct rpc_cred *cred;
@@ -1885,7 +1885,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags, struct nameidata *nd)
{
struct path path = {
- .mnt = nd->mnt,
+ .mnt = nd->path.mnt,
.dentry = dentry,
};
struct nfs4_state *state;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index f9c7432471d..6233eb5e98c 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -682,8 +682,8 @@ static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
if (seqid->sequence->flags & NFS_SEQID_CONFIRMED)
return;
printk(KERN_WARNING "NFS: v4 server returned a bad"
- "sequence-id error on an"
- "unconfirmed sequence %p!\n",
+ " sequence-id error on an"
+ " unconfirmed sequence %p!\n",
seqid->sequence);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 8fd6dfbe1bc..3d7d9631e12 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -79,7 +79,7 @@ void nfs_readdata_release(void *data)
static
int nfs_return_empty_page(struct page *page)
{
- zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
+ zero_user(page, 0, PAGE_CACHE_SIZE);
SetPageUptodate(page);
unlock_page(page);
return 0;
@@ -103,10 +103,10 @@ static void nfs_readpage_truncate_uninitialised_page(struct nfs_read_data *data)
pglen = PAGE_CACHE_SIZE - base;
for (;;) {
if (remainder <= pglen) {
- zero_user_page(*pages, base, remainder, KM_USER0);
+ zero_user(*pages, base, remainder);
break;
}
- zero_user_page(*pages, base, pglen, KM_USER0);
+ zero_user(*pages, base, pglen);
pages++;
remainder -= pglen;
pglen = PAGE_CACHE_SIZE;
@@ -130,7 +130,7 @@ static int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode,
return PTR_ERR(new);
}
if (len < PAGE_CACHE_SIZE)
- zero_user_page(page, len, PAGE_CACHE_SIZE - len, KM_USER0);
+ zero_user_segment(page, len, PAGE_CACHE_SIZE);
nfs_list_add_request(new, &one_request);
if (NFS_SERVER(inode)->rsize < PAGE_CACHE_SIZE)
@@ -532,7 +532,7 @@ readpage_async_filler(void *data, struct page *page)
goto out_error;
if (len < PAGE_CACHE_SIZE)
- zero_user_page(page, len, PAGE_CACHE_SIZE - len, KM_USER0);
+ zero_user_segment(page, len, PAGE_CACHE_SIZE);
nfs_pageio_add_request(desc->pgio, new);
return 0;
out_error:
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 7f4505f6ac6..1fb38184365 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -190,6 +190,10 @@ static match_table_t nfs_secflavor_tokens = {
{ Opt_sec_lkeyi, "lkeyi" },
{ Opt_sec_lkeyp, "lkeyp" },
+ { Opt_sec_spkm, "spkm3" },
+ { Opt_sec_spkmi, "spkm3i" },
+ { Opt_sec_spkmp, "spkm3p" },
+
{ Opt_sec_err, NULL }
};
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 522efff3e2c..f55c437124a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -665,9 +665,7 @@ zero_page:
* then we need to zero any uninitalised data. */
if (req->wb_pgbase == 0 && req->wb_bytes != PAGE_CACHE_SIZE
&& !PageUptodate(req->wb_page))
- zero_user_page(req->wb_page, req->wb_bytes,
- PAGE_CACHE_SIZE - req->wb_bytes,
- KM_USER0);
+ zero_user_segment(req->wb_page, req->wb_bytes, PAGE_CACHE_SIZE);
return req;
}
@@ -699,6 +697,17 @@ int nfs_flush_incompatible(struct file *file, struct page *page)
}
/*
+ * If the page cache is marked as unsafe or invalid, then we can't rely on
+ * the PageUptodate() flag. In this case, we will need to turn off
+ * write optimisations that depend on the page contents being correct.
+ */
+static int nfs_write_pageuptodate(struct page *page, struct inode *inode)
+{
+ return PageUptodate(page) &&
+ !(NFS_I(inode)->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA));
+}
+
+/*
* Update and possibly write a cached page of an NFS file.
*
* XXX: Keep an eye on generic_file_read to make sure it doesn't do bad
@@ -719,10 +728,13 @@ int nfs_updatepage(struct file *file, struct page *page,
(long long)(page_offset(page) +offset));
/* If we're not using byte range locks, and we know the page
- * is entirely in cache, it may be more efficient to avoid
- * fragmenting write requests.
+ * is up to date, it may be more efficient to extend the write
+ * to cover the entire page in order to avoid fragmentation
+ * inefficiencies.
*/
- if (PageUptodate(page) && inode->i_flock == NULL && !(file->f_mode & O_SYNC)) {
+ if (nfs_write_pageuptodate(page, inode) &&
+ inode->i_flock == NULL &&
+ !(file->f_mode & O_SYNC)) {
count = max(count + offset, nfs_page_length(page));
offset = 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-16 01:37:59 +0000