diff options
Diffstat (limited to 'mm/fadvise.c')
| -rw-r--r-- | mm/fadvise.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/fadvise.c b/mm/fadvise.c index a43013112581..ec70d6e4b86d 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * mm/fadvise.c * @@ -52,7 +53,9 @@ SYSCALL_DEFINE4(fadvise64_64, int, fd, loff_t, offset, loff_t, len, int, advice) goto out; } - if (IS_DAX(inode)) { + bdi = inode_to_bdi(mapping->host); + + if (IS_DAX(inode) || (bdi == &noop_backing_dev_info)) { switch (advice) { case POSIX_FADV_NORMAL: case POSIX_FADV_RANDOM: @@ -75,8 +78,6 @@ SYSCALL_DEFINE4(fadvise64_64, int, fd, loff_t, offset, loff_t, len, int, advice) else endbyte--; /* inclusive */ - bdi = inode_to_bdi(mapping->host); - switch (advice) { case POSIX_FADV_NORMAL: f.file->f_ra.ra_pages = bdi->ra_pages; |