Jan Kara 6b65028e2b iomap: Fix broken data integrity guarantees for O_SYNC writes ... Commit d279c80e0b ("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 Garry <john.g.garry@oracle.com> CC: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Fixes: d279c80e0b ("iomap: inline iomap_dio_bio_opflags()") CC: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/20250730102840.20470-2-jack@suse.cz Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <brauner@kernel.org>		2025-08-11 14:51:49 +02:00
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Makefile	iomap: build the writeback code without CONFIG_BLOCK	2025-07-14 10:51:33 +02:00
buffered-io.c	vfs-6.17-rc1.iomap	2025-07-28 16:09:03 -07:00
direct-io.c	iomap: Fix broken data integrity guarantees for O_SYNC writes	2025-08-11 14:51:49 +02:00
fiemap.c	iomap: header diet	2025-07-14 10:51:31 +02:00
internal.h	iomap: move all ioend handling to ioend.c	2025-07-14 10:51:32 +02:00
ioend.c	iomap: move all ioend handling to ioend.c	2025-07-14 10:51:32 +02:00
iter.c	iomap: header diet	2025-07-14 10:51:31 +02:00
seek.c	iomap: header diet	2025-07-14 10:51:31 +02:00
swapfile.c	iomap: header diet	2025-07-14 10:51:31 +02:00
trace.c	iomap: header diet	2025-07-14 10:51:31 +02:00
trace.h	iomap: rename iomap_writepage_map to iomap_writeback_folio	2025-07-14 10:51:32 +02:00