Commit d5a2693f authored by Jan Kara's avatar Jan Kara
Browse files

ext2: Deprecate DAX 

Since PMEM didn't quite lift off, DAX isn't as widely used as we
originally hoped. Thus it doesn't seem warranted to support
implementation of DAX in ext2 driver when the same filesystem can be
accessed through ext4 driver as a "simple implementation". Just
deprecate DAX support in ext2 targetting completely dropping the code at
the end of 2025.

Link: https://lore.kernel.org/all/uiu7rcmtooxgbscaiiim7czqsca52bgrt6aiszsafq7jj4n3e7@ge6mfzcmnorl


Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 5ea45f54

fs/ext2/super.c

+2 −1
Original line number Diff line number Diff line
@@ -601,7 +601,8 @@ static int ext2_parse_param(struct fs_context *fc, struct fs_parameter *param) 
	case Opt_dax:

#ifdef CONFIG_FS_DAX

		ext2_msg_fc(fc, KERN_WARNING,

		    "DAX enabled. Warning: EXPERIMENTAL, use at your own risk");

		    "DAX enabled. Warning: DAX support in ext2 driver is deprecated"

		    " and will be removed at the end of 2025. Please use ext4 driver instead.");

		ctx_set_mount_opt(ctx, EXT2_MOUNT_DAX);

#else

		ext2_msg_fc(fc, KERN_INFO, "dax option not supported");