Re: [PATCH 1/2] block: use iomap_dirty_folio for block devices
Tal Zussman <[email protected]>
| Newsgroups | gmane.linux.block,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
On 8/4/26 10:01 AM, Christoph Hellwig wrote: > On Sun, Aug 02, 2026 at 07:14:26AM -0400, Tal Zussman wrote: >> To reproduce, on a device with a sub-page block size, write a known >> pattern with O_DIRECT, mmap the same range, store to it, msync() and >> fsync(), then read it back with O_DIRECT. A reproducer is available at > > Heh, shared mmap writes to block devices.. > >> [1]. >> >> [1] https://urldefense.com/v3/__https://gist.github.com/ > tzussman/18ab05cba4b3fdc79cce0a69d1fd05b4__;!!BDUfV1Et5lrpZQ! > U2LXFwSk7d0ux5nR34lhpiqhUc75GwdbKoKfJ3Q99AlXZf6q-4Zu4abOqvcnW4gx6nBiH5895_e5MpFV$ <https://urldefense.com/v3/__https://gist.github.com/tzussman/18ab05cba4b3fdc79cce0a69d1fd05b4__;!!BDUfV1Et5lrpZQ!U2LXFwSk7d0ux5nR34lhpiqhUc75GwdbKoKfJ3Q99AlXZf6q-4Zu4abOqvcnW4gx6nBiH5895_e5MpFV$> > > Can you submit this to blktests? Done: https://github.com/linux-blktests/blktests/pull/258 > > Looks good: > > Reviewed-by: Christoph Hellwig <[email protected]> > Thanks!