diff options
| -rw-r--r-- | fs/proc/kcore.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 808ef9afd084..758c14e46a44 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -428,10 +428,18 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos) if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen) tsz = buflen; + m = NULL; while (buflen) { - list_for_each_entry(m, &kclist_head, list) { - if (start >= m->addr && start < (m->addr+m->size)) - break; + /* + * If this is the first iteration or the address is not within + * the previous entry, search for a matching entry. + */ + if (!m || start < m->addr || start >= m->addr + m->size) { + list_for_each_entry(m, &kclist_head, list) { + if (start >= m->addr && + start < m->addr + m->size) + break; + } } if (&m->list == &kclist_head) { |