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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 16:10:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 16:10:49 -0800
commitcbfe0de303a55ed96d8831c2d5f56f8131cd6612 (patch)
treeb327762303c6a015421e4077e7c713b8a47a5e0e /fs/nfsd
parent8322b6fddfd2cee41a7732284e5f04750511f4b2 (diff)
parentba00410b8131b23edfb0e09f8b6dd26c8eb621fb (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS changes from Al Viro: "First pile out of several (there _definitely_ will be more). Stuff in this one: - unification of d_splice_alias()/d_materialize_unique() - iov_iter rewrite - killing a bunch of ->f_path.dentry users (and f_dentry macro). Getting that completed will make life much simpler for unionmount/overlayfs, since then we'll be able to limit the places sensitive to file _dentry_ to reasonably few. Which allows to have file_inode(file) pointing to inode in a covered layer, with dentry pointing to (negative) dentry in union one. Still not complete, but much closer now. - crapectomy in lustre (dead code removal, mostly) - "let's make seq_printf return nothing" preparations - assorted cleanups and fixes There _definitely_ will be more piles" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) copy_from_iter_nocache() new helper: iov_iter_kvec() csum_and_copy_..._iter() iov_iter.c: handle ITER_KVEC directly iov_iter.c: convert copy_to_iter() to iterate_and_advance iov_iter.c: convert copy_from_iter() to iterate_and_advance iov_iter.c: get rid of bvec_copy_page_{to,from}_iter() iov_iter.c: convert iov_iter_zero() to iterate_and_advance iov_iter.c: convert iov_iter_get_pages_alloc() to iterate_all_kinds iov_iter.c: convert iov_iter_get_pages() to iterate_all_kinds iov_iter.c: convert iov_iter_npages() to iterate_all_kinds iov_iter.c: iterate_and_advance iov_iter.c: macros for iterating over iov_iter kill f_dentry macro dcache: fix kmemcheck warning in switch_names new helper: audit_file() nfsd_vfs_write(): use file_inode() ncpfs: use file_inode() kill f_dentry uses lockd: get rid of ->f_path.dentry->d_sb ...
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4recover.c7
-rw-r--r--fs/nfsd/nfs4xdr.c2
-rw-r--r--fs/nfsd/nfsctl.c37
-rw-r--r--fs/nfsd/vfs.c16
-rw-r--r--fs/nfsd/vfs.h4
5 files changed, 31 insertions, 35 deletions
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index a25490ae6c62..cc6a76072009 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -245,10 +245,11 @@ struct nfs4_dir_ctx {
};
static int
-nfsd4_build_namelist(void *arg, const char *name, int namlen,
+nfsd4_build_namelist(struct dir_context *__ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
- struct nfs4_dir_ctx *ctx = arg;
+ struct nfs4_dir_ctx *ctx =
+ container_of(__ctx, struct nfs4_dir_ctx, ctx);
struct name_list *entry;
if (namlen != HEXDIR_LEN - 1)
@@ -704,7 +705,7 @@ cld_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
struct cld_upcall *tmp, *cup;
struct cld_msg __user *cmsg = (struct cld_msg __user *)src;
uint32_t xid;
- struct nfsd_net *nn = net_generic(filp->f_dentry->d_sb->s_fs_info,
+ struct nfsd_net *nn = net_generic(file_inode(filp)->i_sb->s_fs_info,
nfsd_net_id);
struct cld_net *cn = nn->cld_net;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index eeea7a90eb87..b1eed4dd2eab 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1886,7 +1886,7 @@ static __be32 nfsd4_encode_path(struct xdr_stream *xdr,
goto out_free;
}
p = xdr_encode_opaque(p, dentry->d_name.name, len);
- dprintk("/%s", dentry->d_name.name);
+ dprintk("/%pd", dentry);
spin_unlock(&dentry->d_lock);
dput(dentry);
ncomponents--;
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index ca73ca79a0ee..9506ea565610 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -231,6 +231,10 @@ static struct file_operations reply_cache_stats_operations = {
* payload - write methods
*/
+static inline struct net *netns(struct file *file)
+{
+ return file_inode(file)->i_sb->s_fs_info;
+}
/**
* write_unlock_ip - Release all locks used by a client
@@ -252,7 +256,7 @@ static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size)
struct sockaddr *sap = (struct sockaddr *)&address;
size_t salen = sizeof(address);
char *fo_path;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
+ struct net *net = netns(file);
/* sanity check */
if (size == 0)
@@ -350,7 +354,6 @@ static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
int len;
struct auth_domain *dom;
struct knfsd_fh fh;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
if (size == 0)
return -EINVAL;
@@ -385,7 +388,7 @@ static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
if (!dom)
return -ENOMEM;
- len = exp_rootfh(net, dom, path, &fh, maxsize);
+ len = exp_rootfh(netns(file), dom, path, &fh, maxsize);
auth_domain_put(dom);
if (len)
return len;
@@ -429,7 +432,7 @@ static ssize_t write_threads(struct file *file, char *buf, size_t size)
{
char *mesg = buf;
int rv;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
+ struct net *net = netns(file);
if (size > 0) {
int newthreads;
@@ -480,7 +483,7 @@ static ssize_t write_pool_threads(struct file *file, char *buf, size_t size)
int len;
int npools;
int *nthreads;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
+ struct net *net = netns(file);
mutex_lock(&nfsd_mutex);
npools = nfsd_nrpools(net);
@@ -543,8 +546,7 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size)
unsigned minor;
ssize_t tlen = 0;
char *sep;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
if (size>0) {
if (nn->nfsd_serv)
@@ -830,10 +832,9 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size,
static ssize_t write_ports(struct file *file, char *buf, size_t size)
{
ssize_t rv;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
mutex_lock(&nfsd_mutex);
- rv = __write_ports(file, buf, size, net);
+ rv = __write_ports(file, buf, size, netns(file));
mutex_unlock(&nfsd_mutex);
return rv;
}
@@ -865,8 +866,7 @@ int nfsd_max_blksize;
static ssize_t write_maxblksize(struct file *file, char *buf, size_t size)
{
char *mesg = buf;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
if (size > 0) {
int bsize;
@@ -915,8 +915,7 @@ static ssize_t write_maxblksize(struct file *file, char *buf, size_t size)
static ssize_t write_maxconn(struct file *file, char *buf, size_t size)
{
char *mesg = buf;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
unsigned int maxconn = nn->max_connections;
if (size > 0) {
@@ -997,8 +996,7 @@ static ssize_t nfsd4_write_time(struct file *file, char *buf, size_t size,
*/
static ssize_t write_leasetime(struct file *file, char *buf, size_t size)
{
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
return nfsd4_write_time(file, buf, size, &nn->nfsd4_lease, nn);
}
@@ -1014,8 +1012,7 @@ static ssize_t write_leasetime(struct file *file, char *buf, size_t size)
*/
static ssize_t write_gracetime(struct file *file, char *buf, size_t size)
{
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
return nfsd4_write_time(file, buf, size, &nn->nfsd4_grace, nn);
}
@@ -1071,8 +1068,7 @@ static ssize_t __write_recoverydir(struct file *file, char *buf, size_t size,
static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
{
ssize_t rv;
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
mutex_lock(&nfsd_mutex);
rv = __write_recoverydir(file, buf, size, nn);
@@ -1102,8 +1098,7 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
*/
static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size)
{
- struct net *net = file->f_dentry->d_sb->s_fs_info;
- struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct nfsd_net *nn = net_generic(netns(file), nfsd_net_id);
if (size > 0) {
switch(buf[0]) {
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 989129e2d6ea..0a82e3c033ee 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -930,7 +930,6 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
unsigned long *cnt, int *stablep)
{
struct svc_export *exp;
- struct dentry *dentry;
struct inode *inode;
mm_segment_t oldfs;
__be32 err = 0;
@@ -949,8 +948,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
*/
current->flags |= PF_LESS_THROTTLE;
- dentry = file->f_path.dentry;
- inode = dentry->d_inode;
+ inode = file_inode(file);
exp = fhp->fh_export;
use_wgather = (rqstp->rq_vers == 2) && EX_WGATHER(exp);
@@ -1819,10 +1817,12 @@ struct readdir_data {
int full;
};
-static int nfsd_buffered_filldir(void *__buf, const char *name, int namlen,
- loff_t offset, u64 ino, unsigned int d_type)
+static int nfsd_buffered_filldir(struct dir_context *ctx, const char *name,
+ int namlen, loff_t offset, u64 ino,
+ unsigned int d_type)
{
- struct readdir_data *buf = __buf;
+ struct readdir_data *buf =
+ container_of(ctx, struct readdir_data, ctx);
struct buffered_dirent *de = (void *)(buf->dirent + buf->used);
unsigned int reclen;
@@ -1842,7 +1842,7 @@ static int nfsd_buffered_filldir(void *__buf, const char *name, int namlen,
return 0;
}
-static __be32 nfsd_buffered_readdir(struct file *file, filldir_t func,
+static __be32 nfsd_buffered_readdir(struct file *file, nfsd_filldir_t func,
struct readdir_cd *cdp, loff_t *offsetp)
{
struct buffered_dirent *de;
@@ -1926,7 +1926,7 @@ static __be32 nfsd_buffered_readdir(struct file *file, filldir_t func,
*/
__be32
nfsd_readdir(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t *offsetp,
- struct readdir_cd *cdp, filldir_t func)
+ struct readdir_cd *cdp, nfsd_filldir_t func)
{
__be32 err;
struct file *file;
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index c2ff3f14e5f6..b1796d6ee538 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -36,7 +36,7 @@
/*
* Callback function for readdir
*/
-typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
+typedef int (*nfsd_filldir_t)(void *, const char *, int, loff_t, u64, unsigned);
/* nfsd/vfs.c */
int nfsd_racache_init(int);
@@ -95,7 +95,7 @@ __be32 nfsd_rename(struct svc_rqst *,
__be32 nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
char *name, int len);
__be32 nfsd_readdir(struct svc_rqst *, struct svc_fh *,
- loff_t *, struct readdir_cd *, filldir_t);
+ loff_t *, struct readdir_cd *, nfsd_filldir_t);
__be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *,
struct kstatfs *, int access);