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Subject[PATCH 11/13] Make __d_path() to take a struct path argument
From: Andreas Gruenbacher <agruen@suse.de>

One less argument to __d_path.

All callers to __d_path pass the dentry and vfsmount of a struct
path to __d_path. Pass the struct path directly, instead.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
---
fs/dcache.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1779,8 +1779,7 @@ shouldnt_be_hashed:
* "buflen" should be positive. Caller holds the dcache_lock.
*/
static char * __d_path( struct dentry *dentry, struct vfsmount *vfsmnt,
- struct dentry *root, struct vfsmount *rootmnt,
- char *buffer, int buflen)
+ struct path *root, char *buffer, int buflen)
{
char * end = buffer+buflen;
char * retval;
@@ -1805,7 +1804,7 @@ static char * __d_path( struct dentry *d
for (;;) {
struct dentry * parent;

- if (dentry == root && vfsmnt == rootmnt)
+ if (dentry == root->dentry && vfsmnt == root->mnt)
break;
if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
/* Global root? */
@@ -1868,7 +1867,7 @@ char * d_path(struct dentry *dentry, str
path_get(&current->fs->root);
read_unlock(&current->fs->lock);
spin_lock(&dcache_lock);
- res = __d_path(dentry, vfsmnt, root.dentry, root.mnt, buf, buflen);
+ res = __d_path(dentry, vfsmnt, &root, buf, buflen);
spin_unlock(&dcache_lock);
path_put(&root);
return res;
@@ -1936,8 +1935,7 @@ asmlinkage long sys_getcwd(char __user *
unsigned long len;
char * cwd;

- cwd = __d_path(pwd.dentry, pwd.mnt, root.dentry, root.mnt,
- page, PAGE_SIZE);
+ cwd = __d_path(pwd.dentry, pwd.mnt, &root, page, PAGE_SIZE);
spin_unlock(&dcache_lock);

error = PTR_ERR(cwd);
-
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