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constify dentry argument of dentry_path()/dentry_path_raw()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-07-07 09:57:53 -04:00
parent a38fd87484
commit a2bbe66493
2 changed files with 7 additions and 7 deletions
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10
fs/d_path.c
View file

@ -326,9 +326,9 @@ char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
/* /*
* Write full pathname from the root of the filesystem into the buffer. * Write full pathname from the root of the filesystem into the buffer.
*/ */
static char *__dentry_path(struct dentry *d, char *buf, int buflen) static char *__dentry_path(const struct dentry *d, char *buf, int buflen)
{ {
struct dentry *dentry; const struct dentry *dentry;
char *end, *retval; char *end, *retval;
int len, seq = 0; int len, seq = 0;
int error = 0; int error = 0;
@ -347,7 +347,7 @@ restart:
*retval = '/'; *retval = '/';
read_seqbegin_or_lock(&rename_lock, &seq); read_seqbegin_or_lock(&rename_lock, &seq);
while (!IS_ROOT(dentry)) { while (!IS_ROOT(dentry)) {
struct dentry *parent = dentry->d_parent; const struct dentry *parent = dentry->d_parent;
prefetch(parent); prefetch(parent);
error = prepend_name(&end, &len, &dentry->d_name); error = prepend_name(&end, &len, &dentry->d_name);
@ -371,13 +371,13 @@ Elong:
return ERR_PTR(-ENAMETOOLONG); return ERR_PTR(-ENAMETOOLONG);
} }
char *dentry_path_raw(struct dentry *dentry, char *buf, int buflen) char *dentry_path_raw(const struct dentry *dentry, char *buf, int buflen)
{ {
return __dentry_path(dentry, buf, buflen); return __dentry_path(dentry, buf, buflen);
} }
EXPORT_SYMBOL(dentry_path_raw); EXPORT_SYMBOL(dentry_path_raw);
char *dentry_path(struct dentry *dentry, char *buf, int buflen) char *dentry_path(const struct dentry *dentry, char *buf, int buflen)
{ {
char *p = NULL; char *p = NULL;
char *retval; char *retval;

4
include/linux/dcache.h
View file

@ -300,8 +300,8 @@ char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
extern char *__d_path(const struct path *, const struct path *, char *, int); extern char *__d_path(const struct path *, const struct path *, char *, int);
extern char *d_absolute_path(const struct path *, char *, int); extern char *d_absolute_path(const struct path *, char *, int);
extern char *d_path(const struct path *, char *, int); extern char *d_path(const struct path *, char *, int);
extern char *dentry_path_raw(struct dentry *, char *, int); extern char *dentry_path_raw(const struct dentry *, char *, int);
extern char *dentry_path(struct dentry *, char *, int); extern char *dentry_path(const struct dentry *, char *, int);
/* Allocation counts.. */ /* Allocation counts.. */