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Subject[PATCH 28/52] CRED: Give the link() inode op a credentials pointer
Date
Give the link() inode op a credentials pointer.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/afs/dir.c | 4 ++--
fs/bad_inode.c | 2 +-
fs/ext3/namei.c | 3 +--
fs/libfs.c | 3 ++-
fs/namei.c | 3 ++-
fs/nfs/dir.c | 7 ++++---
include/linux/fs.h | 6 ++++--
mm/shmem.c | 3 ++-
8 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index e495269..48f2759 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -35,7 +35,7 @@ static int afs_mkdir(struct inode *dir, struct dentry *dentry, int mode,
static int afs_rmdir(struct inode *dir, struct dentry *dentry);
static int afs_unlink(struct inode *dir, struct dentry *dentry);
static int afs_link(struct dentry *from, struct inode *dir,
- struct dentry *dentry);
+ struct dentry *dentry, struct cred *cred);
static int afs_symlink(struct inode *dir, struct dentry *dentry,
const char *content);
static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
@@ -979,7 +979,7 @@ error:
* create a hard link between files in an AFS filesystem
*/
static int afs_link(struct dentry *from, struct inode *dir,
- struct dentry *dentry)
+ struct dentry *dentry, struct cred *cred)
{
struct afs_vnode *dvnode, *vnode;
struct key *key;
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 3895f7d..a13970d 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -198,7 +198,7 @@ static struct dentry *bad_inode_lookup(struct inode *dir,
}

static int bad_inode_link (struct dentry *old_dentry, struct inode *dir,
- struct dentry *dentry)
+ struct dentry *dentry, struct cred *cred)
{
return -EIO;
}
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index c007ef2..4c19acf 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -2254,9 +2254,8 @@ out_stop:
}

static int ext3_link (struct dentry * old_dentry,
- struct inode * dir, struct dentry *dentry)
+ struct inode * dir, struct dentry *dentry, struct cred *cred)
{
- struct cred *cred = current->cred;
handle_t *handle;
struct inode *inode = old_dentry->d_inode;
int err, retries = 0;
diff --git a/fs/libfs.c b/fs/libfs.c
index 5294de1..d82eaaa 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -250,7 +250,8 @@ Enomem:
return -ENOMEM;
}

-int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+int simple_link(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *dentry, struct cred *cred)
{
struct inode *inode = old_dentry->d_inode;

diff --git a/fs/namei.c b/fs/namei.c
index ef6041a..51e0322 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2300,6 +2300,7 @@ asmlinkage long sys_symlink(const char __user *oldname, const char __user *newna

int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry)
{
+ struct cred *cred = current->cred;
struct inode *inode = old_dentry->d_inode;
int error;

@@ -2329,7 +2330,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de

mutex_lock(&old_dentry->d_inode->i_mutex);
DQUOT_INIT(dir);
- error = dir->i_op->link(old_dentry, dir, new_dentry);
+ error = dir->i_op->link(old_dentry, dir, new_dentry, cred);
mutex_unlock(&old_dentry->d_inode->i_mutex);
if (!error)
fsnotify_create(dir, new_dentry);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 833351e..4e12cf7 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -50,7 +50,8 @@ static int nfs_mkdir(struct inode *, struct dentry *, int, struct cred *);
static int nfs_rmdir(struct inode *, struct dentry *);
static int nfs_unlink(struct inode *, struct dentry *);
static int nfs_symlink(struct inode *, struct dentry *, const char *);
-static int nfs_link(struct dentry *, struct inode *, struct dentry *);
+static int nfs_link(struct dentry *, struct inode *, struct dentry *,
+ struct cred *);
static int nfs_mknod(struct inode *, struct dentry *, int, dev_t,
struct cred *);
static int nfs_rename(struct inode *, struct dentry *,
@@ -1604,9 +1605,9 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
}

static int
-nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry,
+ struct cred *acred)
{
- struct cred *acred = current->cred;
struct inode *inode = old_dentry->d_inode;
int error;

diff --git a/include/linux/fs.h b/include/linux/fs.h
index cb09038..d8cecd4 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1138,7 +1138,8 @@ struct inode_operations {
int (*create) (struct inode *,struct dentry *,int, struct nameidata *,
struct cred *);
struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
- int (*link) (struct dentry *,struct inode *,struct dentry *);
+ int (*link) (struct dentry *,struct inode *,struct dentry *,
+ struct cred *);
int (*unlink) (struct inode *,struct dentry *);
int (*symlink) (struct inode *,struct dentry *,const char *);
int (*mkdir) (struct inode *,struct dentry *,int, struct cred *);
@@ -1794,7 +1795,8 @@ extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
extern int dcache_readdir(struct file *, void *, filldir_t);
extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int simple_statfs(struct dentry *, struct kstatfs *);
-extern int simple_link(struct dentry *, struct inode *, struct dentry *);
+extern int simple_link(struct dentry *, struct inode *, struct dentry *,
+ struct cred *);
extern int simple_unlink(struct inode *, struct dentry *);
extern int simple_rmdir(struct inode *, struct dentry *);
extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
diff --git a/mm/shmem.c b/mm/shmem.c
index 3fff09b..7358d14 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1760,7 +1760,8 @@ static int shmem_create(struct inode *dir, struct dentry *dentry, int mode,
/*
* Link a file..
*/
-static int shmem_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+static int shmem_link(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *dentry, struct cred *cred)
{
struct inode *inode = old_dentry->d_inode;
struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
-
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