diff options
| -rw-r--r-- | mm/filemap.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 05adf0392625..3c37ad6c598b 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1966,8 +1966,19 @@ no_page: if (err == -EEXIST) goto repeat; - if (err) + if (err) { + /* + * When NOWAIT I/O fails to allocate folios this could + * be due to a nonblocking memory allocation and not + * because the system actually is out of memory. + * Return -EAGAIN so that there caller retries in a + * blocking fashion instead of propagating -ENOMEM + * to the application. + */ + if ((fgp_flags & FGP_NOWAIT) && err == -ENOMEM) + err = -EAGAIN; return ERR_PTR(err); + } /* * filemap_add_folio locks the page, and for mmap * we expect an unlocked page. |