diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2018-02-21 17:08:01 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-02-26 12:32:42 -0800 |
| commit | 230f5a8969d8345fc9bbe3683f068246cf1be4b8 (patch) | |
| tree | b6df1cb9d5379fd341c1d179ebae744e96df9ebb /Documentation/driver-api | |
| parent | 9d4949b4935831be10534d5432bf611285a572a5 (diff) | |
dax: fix vma_is_fsdax() helper
Gerd reports that ->i_mode may contain other bits besides S_IFCHR. Use
S_ISCHR() instead. Otherwise, get_user_pages_longterm() may fail on
device-dax instances when those are meant to be explicitly allowed.
Fixes: 2bb6d2837083 ("mm: introduce get_user_pages_longterm")
Cc: <stable@vger.kernel.org>
Reported-by: Gerd Rausch <gerd.rausch@oracle.com>
Acked-by: Jane Chu <jane.chu@oracle.com>
Reported-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'Documentation/driver-api')
0 files changed, 0 insertions, 0 deletions