diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/madvise.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index 0734db8d53a7..b215f0e2ab40 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1287,9 +1287,16 @@ SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec, while (iov_iter_count(&iter)) { iovec = iov_iter_iovec(&iter); + /* + * do_madvise returns ENOMEM if unmapped holes are present + * in the passed VMA. process_madvise() is expected to skip + * unmapped holes passed to it in the 'struct iovec' list + * and not fail because of them. Thus treat -ENOMEM return + * from do_madvise as valid and continue processing. + */ ret = do_madvise(mm, (unsigned long)iovec.iov_base, iovec.iov_len, behavior); - if (ret < 0) + if (ret < 0 && ret != -ENOMEM) break; iov_iter_advance(&iter, iovec.iov_len); } |