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| author | Dan Williams <dan.j.williams@intel.com> | 2018-02-21 17:08:01 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-11 16:21:28 +0100 |
| commit | 43672fa6428ec186db18fc5fba2df8c642bc1c38 (patch) | |
| tree | e269b56ebbebc0cb20496398e2fdfbd83c1d8df2 /arch/x86/xen | |
| parent | 144b6353ae503c055dd8bda0a03f42798d62aaa4 (diff) | |
dax: fix vma_is_fsdax() helper
commit 230f5a8969d8345fc9bbe3683f068246cf1be4b8 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/xen')
0 files changed, 0 insertions, 0 deletions