On 30/07/2025 11:28, Jan Kara wrote:
Commit d279c80e0bac ("iomap: inline iomap_dio_bio_opflags()") has broken the logic in iomap_dio_bio_iter() in a way that when the device does support FUA (or has no writeback cache) and the direct IO happens to freshly allocated or unwritten extents, we will*not* issue fsync after completing direct IO O_SYNC / O_DSYNC write because the IOMAP_DIO_WRITE_THROUGH flag stays mistakenly set. Fix the problem by clearing IOMAP_DIO_WRITE_THROUGH whenever we do not perform FUA write as it was originally intended.
CC: John Garryjohn.g.garry@oracle.com CC: "Ritesh Harjani (IBM)"ritesh.list@gmail.com Fixes: d279c80e0bac ("iomap: inline iomap_dio_bio_opflags()") CC:stable@vger.kernel.org Signed-off-by: Jan Karajack@suse.cz
thanks
Reviewed-by: John Garry john.g.garry@oracle.com