diff options
Diffstat (limited to 'fs/seq_file.c')
| -rw-r--r-- | fs/seq_file.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c index 05d6b0e78c95..4023d6be939b 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -397,7 +397,7 @@ EXPORT_SYMBOL(seq_printf); * Returns pointer past last written character in @s, or NULL in case of * failure. */ -char *mangle_path(char *s, char *p, char *esc) +char *mangle_path(char *s, const char *p, const char *esc) { while (s <= p) { char c = *p++; @@ -427,7 +427,7 @@ EXPORT_SYMBOL(mangle_path); * return the absolute path of 'path', as represented by the * dentry / mnt pair in the path parameter. */ -int seq_path(struct seq_file *m, struct path *path, char *esc) +int seq_path(struct seq_file *m, const struct path *path, const char *esc) { char *buf; size_t size = seq_get_buf(m, &buf); @@ -449,11 +449,9 @@ EXPORT_SYMBOL(seq_path); /* * Same as seq_path, but relative to supplied root. - * - * root may be changed, see __d_path(). */ -int seq_path_root(struct seq_file *m, struct path *path, struct path *root, - char *esc) +int seq_path_root(struct seq_file *m, const struct path *path, + const struct path *root, const char *esc) { char *buf; size_t size = seq_get_buf(m, &buf); @@ -463,6 +461,8 @@ int seq_path_root(struct seq_file *m, struct path *path, struct path *root, char *p; p = __d_path(path, root, buf, size); + if (!p) + return SEQ_SKIP; res = PTR_ERR(p); if (!IS_ERR(p)) { char *end = mangle_path(buf, p, esc); @@ -474,13 +474,13 @@ int seq_path_root(struct seq_file *m, struct path *path, struct path *root, } seq_commit(m, res); - return res < 0 ? res : 0; + return res < 0 && res != -ENAMETOOLONG ? res : 0; } /* * returns the path of the 'dentry' from the root of its filesystem. */ -int seq_dentry(struct seq_file *m, struct dentry *dentry, char *esc) +int seq_dentry(struct seq_file *m, struct dentry *dentry, const char *esc) { char *buf; size_t size = seq_get_buf(m, &buf); |