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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/fs/9p
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/fs/9p')
-rw-r--r--kernel/fs/9p/Makefile5
-rw-r--r--kernel/fs/9p/acl.c65
-rw-r--r--kernel/fs/9p/cache.h1
-rw-r--r--kernel/fs/9p/v9fs.c52
-rw-r--r--kernel/fs/9p/v9fs.h2
-rw-r--r--kernel/fs/9p/vfs_file.c7
-rw-r--r--kernel/fs/9p/vfs_inode.c130
-rw-r--r--kernel/fs/9p/vfs_inode_dotl.c42
-rw-r--r--kernel/fs/9p/vfs_super.c8
-rw-r--r--kernel/fs/9p/xattr.c42
-rw-r--r--kernel/fs/9p/xattr.h3
-rw-r--r--kernel/fs/9p/xattr_security.c80
-rw-r--r--kernel/fs/9p/xattr_trusted.c80
-rw-r--r--kernel/fs/9p/xattr_user.c80
14 files changed, 124 insertions, 473 deletions
diff --git a/kernel/fs/9p/Makefile b/kernel/fs/9p/Makefile
index ff7be98f8..9619ccadd 100644
--- a/kernel/fs/9p/Makefile
+++ b/kernel/fs/9p/Makefile
@@ -10,10 +10,7 @@ obj-$(CONFIG_9P_FS) := 9p.o
vfs_dentry.o \
v9fs.o \
fid.o \
- xattr.o \
- xattr_user.o \
- xattr_trusted.o
+ xattr.o
9p-$(CONFIG_9P_FSCACHE) += cache.o
9p-$(CONFIG_9P_FS_POSIX_ACL) += acl.o
-9p-$(CONFIG_9P_FS_SECURITY) += xattr_security.o
diff --git a/kernel/fs/9p/acl.c b/kernel/fs/9p/acl.c
index 31c010372..a7e28890f 100644
--- a/kernel/fs/9p/acl.c
+++ b/kernel/fs/9p/acl.c
@@ -212,26 +212,9 @@ int v9fs_acl_mode(struct inode *dir, umode_t *modep,
return 0;
}
-static int v9fs_remote_get_acl(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- char *full_name;
-
- switch (type) {
- case ACL_TYPE_ACCESS:
- full_name = POSIX_ACL_XATTR_ACCESS;
- break;
- case ACL_TYPE_DEFAULT:
- full_name = POSIX_ACL_XATTR_DEFAULT;
- break;
- default:
- BUG();
- }
- return v9fs_xattr_get(dentry, full_name, buffer, size);
-}
-
-static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int v9fs_xattr_get_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
struct v9fs_session_info *v9ses;
struct posix_acl *acl;
@@ -245,9 +228,9 @@ static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
* We allow set/get/list of acl when access=client is not specified
*/
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
- return v9fs_remote_get_acl(dentry, name, buffer, size, type);
+ return v9fs_xattr_get(dentry, handler->prefix, buffer, size);
- acl = v9fs_get_cached_acl(d_inode(dentry), type);
+ acl = v9fs_get_cached_acl(d_inode(dentry), handler->flags);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@@ -258,29 +241,9 @@ static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
return error;
}
-static int v9fs_remote_set_acl(struct dentry *dentry, const char *name,
- const void *value, size_t size,
- int flags, int type)
-{
- char *full_name;
-
- switch (type) {
- case ACL_TYPE_ACCESS:
- full_name = POSIX_ACL_XATTR_ACCESS;
- break;
- case ACL_TYPE_DEFAULT:
- full_name = POSIX_ACL_XATTR_DEFAULT;
- break;
- default:
- BUG();
- }
- return v9fs_xattr_set(dentry, full_name, value, size, flags);
-}
-
-
-static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
- const void *value, size_t size,
- int flags, int type)
+static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
int retval;
struct posix_acl *acl;
@@ -296,8 +259,8 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
* xattr value. We leave it to the server to validate
*/
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
- return v9fs_remote_set_acl(dentry, name,
- value, size, flags, type);
+ return v9fs_xattr_set(dentry, handler->prefix, value, size,
+ flags);
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
@@ -316,9 +279,8 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
} else
acl = NULL;
- switch (type) {
+ switch (handler->flags) {
case ACL_TYPE_ACCESS:
- name = POSIX_ACL_XATTR_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
retval = posix_acl_equiv_mode(acl, &mode);
@@ -349,7 +311,6 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
}
break;
case ACL_TYPE_DEFAULT:
- name = POSIX_ACL_XATTR_DEFAULT;
if (!S_ISDIR(inode->i_mode)) {
retval = acl ? -EINVAL : 0;
goto err_out;
@@ -358,9 +319,9 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
default:
BUG();
}
- retval = v9fs_xattr_set(dentry, name, value, size, flags);
+ retval = v9fs_xattr_set(dentry, handler->prefix, value, size, flags);
if (!retval)
- set_cached_acl(inode, type, acl);
+ set_cached_acl(inode, handler->flags, acl);
err_out:
posix_acl_release(acl);
return retval;
diff --git a/kernel/fs/9p/cache.h b/kernel/fs/9p/cache.h
index 2f9675491..247e47e54 100644
--- a/kernel/fs/9p/cache.h
+++ b/kernel/fs/9p/cache.h
@@ -21,6 +21,7 @@
*/
#ifndef _9P_CACHE_H
+#define _9P_CACHE_H
#ifdef CONFIG_9P_FSCACHE
#include <linux/fscache.h>
#include <linux/spinlock.h>
diff --git a/kernel/fs/9p/v9fs.c b/kernel/fs/9p/v9fs.c
index 620d93489..6caca0250 100644
--- a/kernel/fs/9p/v9fs.c
+++ b/kernel/fs/9p/v9fs.c
@@ -52,7 +52,7 @@ enum {
/* Options that take integer arguments */
Opt_debug, Opt_dfltuid, Opt_dfltgid, Opt_afid,
/* String options */
- Opt_uname, Opt_remotename, Opt_trans, Opt_cache, Opt_cachetag,
+ Opt_uname, Opt_remotename, Opt_cache, Opt_cachetag,
/* Options that take no arguments */
Opt_nodevmap,
/* Cache options */
@@ -320,31 +320,21 @@ fail_option_alloc:
struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
const char *dev_name, char *data)
{
- int retval = -EINVAL;
struct p9_fid *fid;
- int rc;
+ int rc = -ENOMEM;
v9ses->uname = kstrdup(V9FS_DEFUSER, GFP_KERNEL);
if (!v9ses->uname)
- return ERR_PTR(-ENOMEM);
+ goto err_names;
v9ses->aname = kstrdup(V9FS_DEFANAME, GFP_KERNEL);
- if (!v9ses->aname) {
- kfree(v9ses->uname);
- return ERR_PTR(-ENOMEM);
- }
+ if (!v9ses->aname)
+ goto err_names;
init_rwsem(&v9ses->rename_sem);
rc = bdi_setup_and_register(&v9ses->bdi, "9p");
- if (rc) {
- kfree(v9ses->aname);
- kfree(v9ses->uname);
- return ERR_PTR(rc);
- }
-
- spin_lock(&v9fs_sessionlist_lock);
- list_add(&v9ses->slist, &v9fs_sessionlist);
- spin_unlock(&v9fs_sessionlist_lock);
+ if (rc)
+ goto err_names;
v9ses->uid = INVALID_UID;
v9ses->dfltuid = V9FS_DEFUID;
@@ -352,10 +342,9 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
v9ses->clnt = p9_client_create(dev_name, data);
if (IS_ERR(v9ses->clnt)) {
- retval = PTR_ERR(v9ses->clnt);
- v9ses->clnt = NULL;
+ rc = PTR_ERR(v9ses->clnt);
p9_debug(P9_DEBUG_ERROR, "problem initializing 9p client\n");
- goto error;
+ goto err_bdi;
}
v9ses->flags = V9FS_ACCESS_USER;
@@ -368,10 +357,8 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
}
rc = v9fs_parse_options(v9ses, data);
- if (rc < 0) {
- retval = rc;
- goto error;
- }
+ if (rc < 0)
+ goto err_clnt;
v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;
@@ -405,10 +392,9 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
fid = p9_client_attach(v9ses->clnt, NULL, v9ses->uname, INVALID_UID,
v9ses->aname);
if (IS_ERR(fid)) {
- retval = PTR_ERR(fid);
- fid = NULL;
+ rc = PTR_ERR(fid);
p9_debug(P9_DEBUG_ERROR, "cannot attach\n");
- goto error;
+ goto err_clnt;
}
if ((v9ses->flags & V9FS_ACCESS_MASK) == V9FS_ACCESS_SINGLE)
@@ -420,12 +406,20 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
/* register the session for caching */
v9fs_cache_session_get_cookie(v9ses);
#endif
+ spin_lock(&v9fs_sessionlist_lock);
+ list_add(&v9ses->slist, &v9fs_sessionlist);
+ spin_unlock(&v9fs_sessionlist_lock);
return fid;
-error:
+err_clnt:
+ p9_client_destroy(v9ses->clnt);
+err_bdi:
bdi_destroy(&v9ses->bdi);
- return ERR_PTR(retval);
+err_names:
+ kfree(v9ses->uname);
+ kfree(v9ses->aname);
+ return ERR_PTR(rc);
}
/**
diff --git a/kernel/fs/9p/v9fs.h b/kernel/fs/9p/v9fs.h
index fb9ffcb43..0923f2cf3 100644
--- a/kernel/fs/9p/v9fs.h
+++ b/kernel/fs/9p/v9fs.h
@@ -149,8 +149,6 @@ extern int v9fs_vfs_unlink(struct inode *i, struct dentry *d);
extern int v9fs_vfs_rmdir(struct inode *i, struct dentry *d);
extern int v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry);
-extern void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd,
- void *p);
extern struct inode *v9fs_inode_from_fid(struct v9fs_session_info *v9ses,
struct p9_fid *fid,
struct super_block *sb, int new);
diff --git a/kernel/fs/9p/vfs_file.c b/kernel/fs/9p/vfs_file.c
index 1ef16bd82..7bf835f85 100644
--- a/kernel/fs/9p/vfs_file.c
+++ b/kernel/fs/9p/vfs_file.c
@@ -161,7 +161,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
if ((fl->fl_flags & FL_POSIX) != FL_POSIX)
BUG();
- res = posix_lock_file_wait(filp, fl);
+ res = locks_lock_file_wait(filp, fl);
if (res < 0)
goto out;
@@ -231,7 +231,8 @@ out_unlock:
if (res < 0 && fl->fl_type != F_UNLCK) {
fl_type = fl->fl_type;
fl->fl_type = F_UNLCK;
- res = posix_lock_file_wait(filp, fl);
+ /* Even if this fails we want to return the remote error */
+ locks_lock_file_wait(filp, fl);
fl->fl_type = fl_type;
}
out:
@@ -381,7 +382,7 @@ static ssize_t
v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
struct p9_fid *fid = iocb->ki_filp->private_data;
- int ret, err;
+ int ret, err = 0;
p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n",
iov_iter_count(to), iocb->ki_pos);
diff --git a/kernel/fs/9p/vfs_inode.c b/kernel/fs/9p/vfs_inode.c
index 53f1e8a21..511078586 100644
--- a/kernel/fs/9p/vfs_inode.c
+++ b/kernel/fs/9p/vfs_inode.c
@@ -451,9 +451,9 @@ void v9fs_evict_inode(struct inode *inode)
{
struct v9fs_inode *v9inode = V9FS_I(inode);
- truncate_inode_pages_final(inode->i_mapping);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
- filemap_fdatawrite(inode->i_mapping);
+ filemap_fdatawrite(&inode->i_data);
v9fs_cache_inode_put_cookie(inode);
/* clunk the fid stashed in writeback_fid */
@@ -1223,100 +1223,43 @@ ino_t v9fs_qid2ino(struct p9_qid *qid)
}
/**
- * v9fs_readlink - read a symlink's location (internal version)
+ * v9fs_vfs_follow_link - follow a symlink path
* @dentry: dentry for symlink
- * @buffer: buffer to load symlink location into
- * @buflen: length of buffer
- *
+ * @cookie: place to pass the data to put_link()
*/
-static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
+static const char *v9fs_vfs_follow_link(struct dentry *dentry, void **cookie)
{
- int retval;
-
- struct v9fs_session_info *v9ses;
- struct p9_fid *fid;
+ struct v9fs_session_info *v9ses = v9fs_dentry2v9ses(dentry);
+ struct p9_fid *fid = v9fs_fid_lookup(dentry);
struct p9_wstat *st;
+ char *res;
+
+ p9_debug(P9_DEBUG_VFS, "%pd\n", dentry);
- p9_debug(P9_DEBUG_VFS, " %pd\n", dentry);
- retval = -EPERM;
- v9ses = v9fs_dentry2v9ses(dentry);
- fid = v9fs_fid_lookup(dentry);
if (IS_ERR(fid))
- return PTR_ERR(fid);
+ return ERR_CAST(fid);
if (!v9fs_proto_dotu(v9ses))
- return -EBADF;
+ return ERR_PTR(-EBADF);
st = p9_client_stat(fid);
if (IS_ERR(st))
- return PTR_ERR(st);
+ return ERR_CAST(st);
if (!(st->mode & P9_DMSYMLINK)) {
- retval = -EINVAL;
- goto done;
+ p9stat_free(st);
+ kfree(st);
+ return ERR_PTR(-EINVAL);
}
+ res = st->extension;
+ st->extension = NULL;
+ if (strlen(res) >= PATH_MAX)
+ res[PATH_MAX - 1] = '\0';
- /* copy extension buffer into buffer */
- retval = min(strlen(st->extension)+1, (size_t)buflen);
- memcpy(buffer, st->extension, retval);
-
- p9_debug(P9_DEBUG_VFS, "%pd -> %s (%.*s)\n",
- dentry, st->extension, buflen, buffer);
-
-done:
p9stat_free(st);
kfree(st);
- return retval;
-}
-
-/**
- * v9fs_vfs_follow_link - follow a symlink path
- * @dentry: dentry for symlink
- * @nd: nameidata
- *
- */
-
-static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- int len = 0;
- char *link = __getname();
-
- p9_debug(P9_DEBUG_VFS, "%pd\n", dentry);
-
- if (!link)
- link = ERR_PTR(-ENOMEM);
- else {
- len = v9fs_readlink(dentry, link, PATH_MAX);
-
- if (len < 0) {
- __putname(link);
- link = ERR_PTR(len);
- } else
- link[min(len, PATH_MAX-1)] = 0;
- }
- nd_set_link(nd, link);
-
- return NULL;
-}
-
-/**
- * v9fs_vfs_put_link - release a symlink path
- * @dentry: dentry for symlink
- * @nd: nameidata
- * @p: unused
- *
- */
-
-void
-v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
-{
- char *s = nd_get_link(nd);
-
- p9_debug(P9_DEBUG_VFS, " %pd %s\n",
- dentry, IS_ERR(s) ? "<error>" : s);
- if (!IS_ERR(s))
- __putname(s);
+ return *cookie = res;
}
/**
@@ -1369,6 +1312,8 @@ v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
return v9fs_vfs_mkspecial(dir, dentry, P9_DMSYMLINK, symname);
}
+#define U32_MAX_DIGITS 10
+
/**
* v9fs_vfs_link - create a hardlink
* @old_dentry: dentry for file to link to
@@ -1382,7 +1327,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
struct dentry *dentry)
{
int retval;
- char *name;
+ char name[1 + U32_MAX_DIGITS + 2]; /* sign + number + \n + \0 */
struct p9_fid *oldfid;
p9_debug(P9_DEBUG_VFS, " %lu,%pd,%pd\n",
@@ -1392,20 +1337,12 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
if (IS_ERR(oldfid))
return PTR_ERR(oldfid);
- name = __getname();
- if (unlikely(!name)) {
- retval = -ENOMEM;
- goto clunk_fid;
- }
-
sprintf(name, "%d\n", oldfid->fid);
retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
- __putname(name);
if (!retval) {
v9fs_refresh_inode(oldfid, d_inode(old_dentry));
v9fs_invalidate_inode_attr(dir);
}
-clunk_fid:
p9_client_clunk(oldfid);
return retval;
}
@@ -1424,36 +1361,23 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rde
{
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
int retval;
- char *name;
+ char name[2 + U32_MAX_DIGITS + 1 + U32_MAX_DIGITS + 1];
u32 perm;
p9_debug(P9_DEBUG_VFS, " %lu,%pd mode: %hx MAJOR: %u MINOR: %u\n",
dir->i_ino, dentry, mode,
MAJOR(rdev), MINOR(rdev));
- if (!new_valid_dev(rdev))
- return -EINVAL;
-
- name = __getname();
- if (!name)
- return -ENOMEM;
/* build extension */
if (S_ISBLK(mode))
sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev));
else if (S_ISCHR(mode))
sprintf(name, "c %u %u", MAJOR(rdev), MINOR(rdev));
- else if (S_ISFIFO(mode))
- *name = 0;
- else if (S_ISSOCK(mode))
+ else
*name = 0;
- else {
- __putname(name);
- return -EINVAL;
- }
perm = unixmode2p9mode(v9ses, mode);
retval = v9fs_vfs_mkspecial(dir, dentry, perm, name);
- __putname(name);
return retval;
}
@@ -1529,7 +1453,7 @@ static const struct inode_operations v9fs_file_inode_operations = {
static const struct inode_operations v9fs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = v9fs_vfs_follow_link,
- .put_link = v9fs_vfs_put_link,
+ .put_link = kfree_put_link,
.getattr = v9fs_vfs_getattr,
.setattr = v9fs_vfs_setattr,
};
diff --git a/kernel/fs/9p/vfs_inode_dotl.c b/kernel/fs/9p/vfs_inode_dotl.c
index 4d3ecfb55..cb899af1b 100644
--- a/kernel/fs/9p/vfs_inode_dotl.c
+++ b/kernel/fs/9p/vfs_inode_dotl.c
@@ -829,9 +829,6 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
dir->i_ino, dentry, omode,
MAJOR(rdev), MINOR(rdev));
- if (!new_valid_dev(rdev))
- return -EINVAL;
-
v9ses = v9fs_inode2v9ses(dir);
dir_dentry = dentry->d_parent;
dfid = v9fs_fid_lookup(dir_dentry);
@@ -904,41 +901,24 @@ error:
/**
* v9fs_vfs_follow_link_dotl - follow a symlink path
* @dentry: dentry for symlink
- * @nd: nameidata
- *
+ * @cookie: place to pass the data to put_link()
*/
-static void *
-v9fs_vfs_follow_link_dotl(struct dentry *dentry, struct nameidata *nd)
+static const char *
+v9fs_vfs_follow_link_dotl(struct dentry *dentry, void **cookie)
{
- int retval;
- struct p9_fid *fid;
- char *link = __getname();
+ struct p9_fid *fid = v9fs_fid_lookup(dentry);
char *target;
+ int retval;
p9_debug(P9_DEBUG_VFS, "%pd\n", dentry);
- if (!link) {
- link = ERR_PTR(-ENOMEM);
- goto ndset;
- }
- fid = v9fs_fid_lookup(dentry);
- if (IS_ERR(fid)) {
- __putname(link);
- link = ERR_CAST(fid);
- goto ndset;
- }
+ if (IS_ERR(fid))
+ return ERR_CAST(fid);
retval = p9_client_readlink(fid, &target);
- if (!retval) {
- strcpy(link, target);
- kfree(target);
- goto ndset;
- }
- __putname(link);
- link = ERR_PTR(retval);
-ndset:
- nd_set_link(nd, link);
- return NULL;
+ if (retval)
+ return ERR_PTR(retval);
+ return *cookie = target;
}
int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode)
@@ -1005,7 +985,7 @@ const struct inode_operations v9fs_file_inode_operations_dotl = {
const struct inode_operations v9fs_symlink_inode_operations_dotl = {
.readlink = generic_readlink,
.follow_link = v9fs_vfs_follow_link_dotl,
- .put_link = v9fs_vfs_put_link,
+ .put_link = kfree_put_link,
.getattr = v9fs_vfs_getattr_dotl,
.setattr = v9fs_vfs_setattr_dotl,
.setxattr = generic_setxattr,
diff --git a/kernel/fs/9p/vfs_super.c b/kernel/fs/9p/vfs_super.c
index e99a338a4..bf495cede 100644
--- a/kernel/fs/9p/vfs_super.c
+++ b/kernel/fs/9p/vfs_super.c
@@ -130,11 +130,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
fid = v9fs_session_init(v9ses, dev_name, data);
if (IS_ERR(fid)) {
retval = PTR_ERR(fid);
- /*
- * we need to call session_close to tear down some
- * of the data structure setup by session_init
- */
- goto close_session;
+ goto free_session;
}
sb = sget(fs_type, NULL, v9fs_set_super, flags, v9ses);
@@ -195,8 +191,8 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
clunk_fid:
p9_client_clunk(fid);
-close_session:
v9fs_session_close(v9ses);
+free_session:
kfree(v9ses);
return ERR_PTR(retval);
diff --git a/kernel/fs/9p/xattr.c b/kernel/fs/9p/xattr.c
index 0cf44b6cc..e3d026ac3 100644
--- a/kernel/fs/9p/xattr.c
+++ b/kernel/fs/9p/xattr.c
@@ -137,6 +137,48 @@ ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
return v9fs_xattr_get(dentry, NULL, buffer, buffer_size);
}
+static int v9fs_xattr_handler_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
+{
+ const char *full_name = xattr_full_name(handler, name);
+
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+ return v9fs_xattr_get(dentry, full_name, buffer, size);
+}
+
+static int v9fs_xattr_handler_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+{
+ const char *full_name = xattr_full_name(handler, name);
+
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+ return v9fs_xattr_set(dentry, full_name, value, size, flags);
+}
+
+static struct xattr_handler v9fs_xattr_user_handler = {
+ .prefix = XATTR_USER_PREFIX,
+ .get = v9fs_xattr_handler_get,
+ .set = v9fs_xattr_handler_set,
+};
+
+static struct xattr_handler v9fs_xattr_trusted_handler = {
+ .prefix = XATTR_TRUSTED_PREFIX,
+ .get = v9fs_xattr_handler_get,
+ .set = v9fs_xattr_handler_set,
+};
+
+#ifdef CONFIG_9P_FS_SECURITY
+static struct xattr_handler v9fs_xattr_security_handler = {
+ .prefix = XATTR_SECURITY_PREFIX,
+ .get = v9fs_xattr_handler_get,
+ .set = v9fs_xattr_handler_set,
+};
+#endif
+
const struct xattr_handler *v9fs_xattr_handlers[] = {
&v9fs_xattr_user_handler,
&v9fs_xattr_trusted_handler,
diff --git a/kernel/fs/9p/xattr.h b/kernel/fs/9p/xattr.h
index d3e2ea384..c63c3bea5 100644
--- a/kernel/fs/9p/xattr.h
+++ b/kernel/fs/9p/xattr.h
@@ -19,9 +19,6 @@
#include <net/9p/client.h>
extern const struct xattr_handler *v9fs_xattr_handlers[];
-extern struct xattr_handler v9fs_xattr_user_handler;
-extern struct xattr_handler v9fs_xattr_trusted_handler;
-extern struct xattr_handler v9fs_xattr_security_handler;
extern const struct xattr_handler v9fs_xattr_acl_access_handler;
extern const struct xattr_handler v9fs_xattr_acl_default_handler;
diff --git a/kernel/fs/9p/xattr_security.c b/kernel/fs/9p/xattr_security.c
deleted file mode 100644
index cb247a142..000000000
--- a/kernel/fs/9p/xattr_security.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright IBM Corporation, 2010
- * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "xattr.h"
-
-static int v9fs_xattr_security_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_SECURITY_PREFIX, prefix_len);
- memcpy(full_name+prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_get(dentry, full_name, buffer, size);
- kfree(full_name);
- return retval;
-}
-
-static int v9fs_xattr_security_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_SECURITY_PREFIX, prefix_len);
- memcpy(full_name + prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
- kfree(full_name);
- return retval;
-}
-
-struct xattr_handler v9fs_xattr_security_handler = {
- .prefix = XATTR_SECURITY_PREFIX,
- .get = v9fs_xattr_security_get,
- .set = v9fs_xattr_security_set,
-};
diff --git a/kernel/fs/9p/xattr_trusted.c b/kernel/fs/9p/xattr_trusted.c
deleted file mode 100644
index e30d33b8a..000000000
--- a/kernel/fs/9p/xattr_trusted.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright IBM Corporation, 2010
- * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "xattr.h"
-
-static int v9fs_xattr_trusted_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_TRUSTED_PREFIX, prefix_len);
- memcpy(full_name+prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_get(dentry, full_name, buffer, size);
- kfree(full_name);
- return retval;
-}
-
-static int v9fs_xattr_trusted_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_TRUSTED_PREFIX, prefix_len);
- memcpy(full_name + prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
- kfree(full_name);
- return retval;
-}
-
-struct xattr_handler v9fs_xattr_trusted_handler = {
- .prefix = XATTR_TRUSTED_PREFIX,
- .get = v9fs_xattr_trusted_get,
- .set = v9fs_xattr_trusted_set,
-};
diff --git a/kernel/fs/9p/xattr_user.c b/kernel/fs/9p/xattr_user.c
deleted file mode 100644
index d0b701b72..000000000
--- a/kernel/fs/9p/xattr_user.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright IBM Corporation, 2010
- * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "xattr.h"
-
-static int v9fs_xattr_user_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_USER_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
- memcpy(full_name+prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_get(dentry, full_name, buffer, size);
- kfree(full_name);
- return retval;
-}
-
-static int v9fs_xattr_user_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_USER_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
- memcpy(full_name + prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
- kfree(full_name);
- return retval;
-}
-
-struct xattr_handler v9fs_xattr_user_handler = {
- .prefix = XATTR_USER_PREFIX,
- .get = v9fs_xattr_user_get,
- .set = v9fs_xattr_user_set,
-};