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authorJan Blunck <jblunck@suse.de>2008-02-14 19:38:44 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-14 21:17:09 -0800
commitcf28b4863f9ee8f122e8ff3ac0d403e07ba9c6d9 (patch)
tree65c91f6911b34c32e517938289621ce0e7baeaf3
parentc32c2f63a9d6c953aaf168c0b2551da9734f76d2 (diff)
downloadlinux-2.6.34-ux500-cf28b4863f9ee8f122e8ff3ac0d403e07ba9c6d9.tar.gz
d_path: Make d_path() use a struct path
d_path() is used on a <dentry,vfsmount> pair. Lets use a struct path to reflect this. [akpm@linux-foundation.org: fix build in mm/memory.c] Signed-off-by: Jan Blunck <jblunck@suse.de> Acked-by: Bryan Wu <bryan.wu@analog.com> Acked-by: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/blackfin/kernel/traps.c12
-rw-r--r--drivers/md/bitmap.c8
-rw-r--r--drivers/usb/gadget/file_storage.c8
-rw-r--r--fs/compat_ioctl.c2
-rw-r--r--fs/dcache.c12
-rw-r--r--fs/dcookies.c2
-rw-r--r--fs/nfsd/export.c2
-rw-r--r--fs/proc/base.c2
-rw-r--r--fs/seq_file.c3
-rw-r--r--include/linux/dcache.h5
-rw-r--r--kernel/audit.c2
-rw-r--r--mm/memory.c2
12 files changed, 24 insertions, 36 deletions
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 58717cb1970..56a67ab698c 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -126,15 +126,13 @@ static void decode_address(char *buf, unsigned long address)
struct vm_area_struct *vma = vml->vma;
if (address >= vma->vm_start && address < vma->vm_end) {
+ char _tmpbuf[256];
char *name = p->comm;
struct file *file = vma->vm_file;
- if (file) {
- char _tmpbuf[256];
- name = d_path(file->f_dentry,
- file->f_vfsmnt,
- _tmpbuf,
- sizeof(_tmpbuf));
- }
+
+ if (file)
+ name = d_path(&file->f_path, _tmpbuf,
+ sizeof(_tmpbuf));
/* FLAT does not have its text aligned to the start of
* the map while FDPIC ELF does ...
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index a0585fb6da9..7aeceedcf7d 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -206,16 +206,10 @@ static void bitmap_checkfree(struct bitmap *bitmap, unsigned long page)
/* copy the pathname of a file to a buffer */
char *file_path(struct file *file, char *buf, int count)
{
- struct dentry *d;
- struct vfsmount *v;
-
if (!buf)
return NULL;
- d = file->f_path.dentry;
- v = file->f_path.mnt;
-
- buf = d_path(d, v, buf, count);
+ buf = d_path(&file->f_path, buf, count);
return IS_ERR(buf) ? NULL : buf;
}
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 3301167d4f2..017a196d041 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -3563,8 +3563,7 @@ static ssize_t show_file(struct device *dev, struct device_attribute *attr,
down_read(&fsg->filesem);
if (backing_file_is_open(curlun)) { // Get the complete pathname
- p = d_path(curlun->filp->f_path.dentry,
- curlun->filp->f_path.mnt, buf, PAGE_SIZE - 1);
+ p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1);
if (IS_ERR(p))
rc = PTR_ERR(p);
else {
@@ -3981,9 +3980,8 @@ static int __init fsg_bind(struct usb_gadget *gadget)
if (backing_file_is_open(curlun)) {
p = NULL;
if (pathbuf) {
- p = d_path(curlun->filp->f_path.dentry,
- curlun->filp->f_path.mnt,
- pathbuf, PATH_MAX);
+ p = d_path(&curlun->filp->f_path,
+ pathbuf, PATH_MAX);
if (IS_ERR(p))
p = NULL;
}
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index ee32c0eac7c..c6e72aebd16 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -2853,7 +2853,7 @@ static void compat_ioctl_error(struct file *filp, unsigned int fd,
/* find the name of the device. */
path = (char *)__get_free_page(GFP_KERNEL);
if (path) {
- fn = d_path(filp->f_path.dentry, filp->f_path.mnt, path, PAGE_SIZE);
+ fn = d_path(&filp->f_path, path, PAGE_SIZE);
if (IS_ERR(fn))
fn = "?";
}
diff --git a/fs/dcache.c b/fs/dcache.c
index 170efbcb1a9..7b4b080219f 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1845,8 +1845,7 @@ Elong:
/**
* d_path - return the path of a dentry
- * @dentry: dentry to report
- * @vfsmnt: vfsmnt to which the dentry belongs
+ * @path: path to report
* @buf: buffer to return value in
* @buflen: buffer length
*
@@ -1857,8 +1856,7 @@ Elong:
*
* "buflen" should be positive. Caller holds the dcache_lock.
*/
-char *d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
- char *buf, int buflen)
+char *d_path(struct path *path, char *buf, int buflen)
{
char *res;
struct path root;
@@ -1870,15 +1868,15 @@ char *d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
* user wants to identify the object in /proc/pid/fd/. The little hack
* below allows us to generate a name for these objects on demand:
*/
- if (dentry->d_op && dentry->d_op->d_dname)
- return dentry->d_op->d_dname(dentry, buf, buflen);
+ if (path->dentry->d_op && path->dentry->d_op->d_dname)
+ return path->dentry->d_op->d_dname(path->dentry, buf, buflen);
read_lock(&current->fs->lock);
root = current->fs->root;
path_get(&current->fs->root);
read_unlock(&current->fs->lock);
spin_lock(&dcache_lock);
- res = __d_path(dentry, vfsmnt, &root, buf, buflen);
+ res = __d_path(path->dentry, path->mnt, &root, buf, buflen);
spin_unlock(&dcache_lock);
path_put(&root);
return res;
diff --git a/fs/dcookies.c b/fs/dcookies.c
index 13c29f1f711..855d4b1d619 100644
--- a/fs/dcookies.c
+++ b/fs/dcookies.c
@@ -171,7 +171,7 @@ asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user * buf, size_t len)
goto out;
/* FIXME: (deleted) ? */
- path = d_path(dcs->path.dentry, dcs->path.mnt, kbuf, PAGE_SIZE);
+ path = d_path(&dcs->path, kbuf, PAGE_SIZE);
if (IS_ERR(path)) {
err = PTR_ERR(path);
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 4a85b40eef4..8a6f7c924c7 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -345,7 +345,7 @@ static void svc_export_request(struct cache_detail *cd,
char *pth;
qword_add(bpp, blen, exp->ex_client->name);
- pth = d_path(exp->ex_path.dentry, exp->ex_path.mnt, *bpp, *blen);
+ pth = d_path(&exp->ex_path, *bpp, *blen);
if (IS_ERR(pth)) {
/* is this correct? */
(*bpp)[0] = '\n';
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 47338d92db5..88f8edf1825 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1185,7 +1185,7 @@ static int do_proc_readlink(struct path *path, char __user *buffer, int buflen)
if (!tmp)
return -ENOMEM;
- pathname = d_path(path->dentry, path->mnt, tmp, PAGE_SIZE);
+ pathname = d_path(path, tmp, PAGE_SIZE);
len = PTR_ERR(pathname);
if (IS_ERR(pathname))
goto out;
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 8d862907f06..853770274f2 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -346,8 +346,7 @@ int seq_path(struct seq_file *m, struct path *path, char *esc)
{
if (m->count < m->size) {
char *s = m->buf + m->count;
- char *p = d_path(path->dentry, path->mnt, s,
- m->size - m->count);
+ char *p = d_path(path, s, m->size - m->count);
if (!IS_ERR(p)) {
while (s <= p) {
char c = *p++;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index c2c153f97e8..6bd646096fa 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -10,6 +10,7 @@
#include <linux/rcupdate.h>
struct nameidata;
+struct path;
struct vfsmount;
/*
@@ -300,8 +301,8 @@ extern int d_validate(struct dentry *, struct dentry *);
*/
extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
-extern char * d_path(struct dentry *, struct vfsmount *, char *, int);
-
+extern char *d_path(struct path *, char *, int);
+
/* Allocation counts.. */
/**
diff --git a/kernel/audit.c b/kernel/audit.c
index 783e6570124..2eeea9a1424 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1325,7 +1325,7 @@ void audit_log_d_path(struct audit_buffer *ab, const char *prefix,
audit_log_format(ab, "<no memory>");
return;
}
- p = d_path(path->dentry, path->mnt, pathname, PATH_MAX+11);
+ p = d_path(path, pathname, PATH_MAX+11);
if (IS_ERR(p)) { /* Should never happen since we send PATH_MAX */
/* FIXME: can we save some information here? */
audit_log_format(ab, "<too long>");
diff --git a/mm/memory.c b/mm/memory.c
index 717aa0e3be2..e7a6dcacefc 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2719,7 +2719,7 @@ void print_vma_addr(char *prefix, unsigned long ip)
if (buf) {
char *p, *s;
- p = d_path(f->f_dentry, f->f_vfsmnt, buf, PAGE_SIZE);
+ p = d_path(&f->f_path, buf, PAGE_SIZE);
if (IS_ERR(p))
p = "?";
s = strrchr(p, '/');