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Message-Id: <1431367690-5223-99-git-send-email-viro@ZenIV.linux.org.uk>
Date: Mon, 11 May 2015 19:07:59 +0100
From: Al Viro <viro@...IV.linux.org.uk>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Neil Brown <neilb@...e.de>, Christoph Hellwig <hch@...radead.org>,
linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH v3 099/110] switch ->put_link() from dentry to inode
From: Al Viro <viro@...iv.linux.org.uk>
only one instance looks at that argument at all; that sole
exception wants inode rather than dentry.
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
Documentation/filesystems/Locking | 2 +-
Documentation/filesystems/vfs.txt | 2 +-
drivers/staging/lustre/lustre/llite/symlink.c | 2 +-
fs/configfs/symlink.c | 2 +-
fs/f2fs/namei.c | 2 +-
fs/fuse/dir.c | 2 +-
fs/hostfs/hostfs_kern.c | 2 +-
fs/hppfs/hppfs.c | 8 ++++----
fs/kernfs/symlink.c | 2 +-
fs/libfs.c | 2 +-
fs/namei.c | 13 +++++++------
fs/overlayfs/inode.c | 4 ++--
fs/proc/inode.c | 2 +-
include/linux/fs.h | 6 +++---
mm/shmem.c | 2 +-
15 files changed, 27 insertions(+), 26 deletions(-)
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 5b5b4f5..6a34a0f 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -51,7 +51,7 @@ prototypes:
struct inode *, struct dentry *, unsigned int);
int (*readlink) (struct dentry *, char __user *,int);
const char *(*follow_link) (struct dentry *, void **);
- void (*put_link) (struct dentry *, void *);
+ void (*put_link) (struct inode *, void *);
void (*truncate) (struct inode *);
int (*permission) (struct inode *, int, unsigned int);
int (*get_acl)(struct inode *, int);
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 0dec8c8..542d935 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -351,7 +351,7 @@ struct inode_operations {
struct inode *, struct dentry *, unsigned int);
int (*readlink) (struct dentry *, char __user *,int);
const char *(*follow_link) (struct dentry *, void **);
- void (*put_link) (struct dentry *, void *);
+ void (*put_link) (struct inode *, void *);
int (*permission) (struct inode *, int);
int (*get_acl)(struct inode *, int);
int (*setattr) (struct dentry *, struct iattr *);
diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c
index f3be3bf..69b2036 100644
--- a/drivers/staging/lustre/lustre/llite/symlink.c
+++ b/drivers/staging/lustre/lustre/llite/symlink.c
@@ -141,7 +141,7 @@ static const char *ll_follow_link(struct dentry *dentry, void **cookie)
return symname;
}
-static void ll_put_link(struct dentry *dentry, void *cookie)
+static void ll_put_link(struct inode *unused, void *cookie)
{
ptlrpc_req_finished(cookie);
}
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index 0ace756..bc464c2 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -296,7 +296,7 @@ static const char *configfs_follow_link(struct dentry *dentry, void **cookie)
return ERR_PTR(error);
}
-static void configfs_put_link(struct dentry *dentry, void *cookie)
+static void configfs_put_link(struct inode *unused, void *cookie)
{
free_page((unsigned long)cookie);
}
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index cd05a7c..71765d0 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -301,7 +301,7 @@ static const char *f2fs_follow_link(struct dentry *dentry, void **cookie)
const char *link = page_follow_link_light(dentry, cookie);
if (!IS_ERR(link) && !*link) {
/* this is broken symlink case */
- page_put_link(dentry, *cookie);
+ page_put_link(NULL, *cookie);
link = ERR_PTR(-ENOENT);
}
return link;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index d5cdef8..9e704c1 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1395,7 +1395,7 @@ static const char *fuse_follow_link(struct dentry *dentry, void **cookie)
return link;
}
-static void fuse_put_link(struct dentry *dentry, void *cookie)
+static void fuse_put_link(struct inode *unused, void *cookie)
{
free_page((unsigned long) cookie);
}
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 7b6ed7a..4a437ab 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -915,7 +915,7 @@ static const char *hostfs_follow_link(struct dentry *dentry, void **cookie)
return *cookie = link;
}
-static void hostfs_put_link(struct dentry *dentry, void *cookie)
+static void hostfs_put_link(struct inode *unused, void *cookie)
{
__putname(cookie);
}
diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index 15a774e..2867837 100644
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -649,12 +649,12 @@ static const char *hppfs_follow_link(struct dentry *dentry, void **cookie)
return d_inode(proc_dentry)->i_op->follow_link(proc_dentry, cookie);
}
-static void hppfs_put_link(struct dentry *dentry, void *cookie)
+static void hppfs_put_link(struct inode *inode, void *cookie)
{
- struct dentry *proc_dentry = HPPFS_I(d_inode(dentry))->proc_dentry;
+ struct inode *proc_inode = d_inode(HPPFS_I(inode)->proc_dentry);
- if (d_inode(proc_dentry)->i_op->put_link)
- d_inode(proc_dentry)->i_op->put_link(proc_dentry, cookie);
+ if (proc_inode->i_op->put_link)
+ proc_inode->i_op->put_link(proc_inode, cookie);
}
static const struct inode_operations hppfs_dir_iops = {
diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
index 366c5a1..f6aa2e5 100644
--- a/fs/kernfs/symlink.c
+++ b/fs/kernfs/symlink.c
@@ -126,7 +126,7 @@ static const char *kernfs_iop_follow_link(struct dentry *dentry, void **cookie)
return *cookie = (char *)page;
}
-static void kernfs_iop_put_link(struct dentry *dentry, void *cookie)
+static void kernfs_iop_put_link(struct inode *unused, void *cookie)
{
free_page((unsigned long)cookie);
}
diff --git a/fs/libfs.c b/fs/libfs.c
index c5f3373..01c337b 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1024,7 +1024,7 @@ int noop_fsync(struct file *file, loff_t start, loff_t end, int datasync)
}
EXPORT_SYMBOL(noop_fsync);
-void kfree_put_link(struct dentry *dentry, void *cookie)
+void kfree_put_link(struct inode *unused, void *cookie)
{
kfree(cookie);
}
diff --git a/fs/namei.c b/fs/namei.c
index 0fa7af2..4303404 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -749,7 +749,7 @@ static inline void put_link(struct nameidata *nd)
struct saved *last = nd->stack + --nd->depth;
struct inode *inode = last->inode;
if (last->cookie && inode->i_op->put_link)
- inode->i_op->put_link(last->link.dentry, last->cookie);
+ inode->i_op->put_link(inode, last->cookie);
path_put(&last->link);
}
@@ -4444,17 +4444,18 @@ EXPORT_SYMBOL(readlink_copy);
int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen)
{
void *cookie;
- const char *link = dentry->d_inode->i_link;
+ struct inode *inode = d_inode(dentry);
+ const char *link = inode->i_link;
int res;
if (!link) {
- link = dentry->d_inode->i_op->follow_link(dentry, &cookie);
+ link = inode->i_op->follow_link(dentry, &cookie);
if (IS_ERR(link))
return PTR_ERR(link);
}
res = readlink_copy(buffer, buflen, link);
- if (dentry->d_inode->i_op->put_link)
- dentry->d_inode->i_op->put_link(dentry, cookie);
+ if (inode->i_op->put_link)
+ inode->i_op->put_link(inode, cookie);
return res;
}
EXPORT_SYMBOL(generic_readlink);
@@ -4496,7 +4497,7 @@ const char *page_follow_link_light(struct dentry *dentry, void **cookie)
}
EXPORT_SYMBOL(page_follow_link_light);
-void page_put_link(struct dentry *dentry, void *cookie)
+void page_put_link(struct inode *unused, void *cookie)
{
struct page *page = cookie;
kunmap(page);
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 9986833..308379b 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -174,7 +174,7 @@ static const char *ovl_follow_link(struct dentry *dentry, void **cookie)
return ret;
}
-static void ovl_put_link(struct dentry *dentry, void *c)
+static void ovl_put_link(struct inode *unused, void *c)
{
struct inode *realinode;
struct ovl_link_data *data = c;
@@ -183,7 +183,7 @@ static void ovl_put_link(struct dentry *dentry, void *c)
return;
realinode = data->realdentry->d_inode;
- realinode->i_op->put_link(data->realdentry, data->cookie);
+ realinode->i_op->put_link(realinode, data->cookie);
kfree(data);
}
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index eb35874..afe232b 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -402,7 +402,7 @@ static const char *proc_follow_link(struct dentry *dentry, void **cookie)
return pde->data;
}
-static void proc_put_link(struct dentry *dentry, void *p)
+static void proc_put_link(struct inode *unused, void *p)
{
unuse_pde(p);
}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index ed7c9f2..f21e332 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1613,7 +1613,7 @@ struct inode_operations {
struct posix_acl * (*get_acl)(struct inode *, int);
int (*readlink) (struct dentry *, char __user *,int);
- void (*put_link) (struct dentry *, void *);
+ void (*put_link) (struct inode *, void *);
int (*create) (struct inode *,struct dentry *, umode_t, bool);
int (*link) (struct dentry *,struct inode *,struct dentry *);
@@ -2706,12 +2706,12 @@ extern const struct file_operations generic_ro_fops;
extern int readlink_copy(char __user *, int, const char *);
extern int page_readlink(struct dentry *, char __user *, int);
extern const char *page_follow_link_light(struct dentry *, void **);
-extern void page_put_link(struct dentry *, void *);
+extern void page_put_link(struct inode *, void *);
extern int __page_symlink(struct inode *inode, const char *symname, int len,
int nofs);
extern int page_symlink(struct inode *inode, const char *symname, int len);
extern const struct inode_operations page_symlink_inode_operations;
-extern void kfree_put_link(struct dentry *, void *);
+extern void kfree_put_link(struct inode *, void *);
extern int generic_readlink(struct dentry *, char __user *, int);
extern void generic_fillattr(struct inode *, struct kstat *);
int vfs_getattr_nosec(struct path *path, struct kstat *stat);
diff --git a/mm/shmem.c b/mm/shmem.c
index e026822..a59087e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2486,7 +2486,7 @@ static const char *shmem_follow_link(struct dentry *dentry, void **cookie)
return kmap(page);
}
-static void shmem_put_link(struct dentry *dentry, void *cookie)
+static void shmem_put_link(struct inode *unused, void *cookie)
{
struct page *page = cookie;
kunmap(page);
--
2.1.4
--
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