2 Commits

Author	SHA1	Message	Date
Dave Chinner	cf89aed924	generic: convert tests to SPDX license tags ... Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>	2018-06-09 11:35:42 +10:00
Ross Zwisler	bba1b1b2b9	generic: add regression test for stale mmap reads ... This adds a regression test for the following kernel patch: dax: fix data corruption due to stale mmap reads The above patch fixes an issue where users of DAX can suffer data corruption from stale mmap reads via the following sequence: - open an mmap over a 2MiB hole - read from a 2MiB hole, faulting in a 2MiB zero page - write to the hole with write(3p). The write succeeds but we incorrectly leave the 2MiB zero page mapping intact. - via the mmap, read the data that was just written. Since the zero page mapping is still intact we read back zeroes instead of the new data. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>	2017-04-27 12:00:14 +08:00