ext4: remove lazytime/nolazytime mount options handled by MS_LAZYTIME

The lazytime and nolazytime mount options were added temporarily back in
2015 with commit a26f49926da9 ("ext4: add optimization for the lazytime
mount option"). It think it has been enough time for the util-linux with
lazytime support to get widely used. Remove the mount options.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Link: https://lore.kernel.org/r/20211222104517.11187-1-lczerner@redhat.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 77ad2101e65add35b247af1dcc386d71bda919e9..9c6cd5d78fea9fd148261fc34be43fdb99327358 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1703,8 +1703,7 @@ enum {
        Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_i_version,
        Opt_dax, Opt_dax_always, Opt_dax_inode, Opt_dax_never,
        Opt_stripe, Opt_delalloc, Opt_nodelalloc, Opt_warn_on_error,
-       Opt_nowarn_on_error, Opt_mblk_io_submit,
-       Opt_lazytime, Opt_nolazytime, Opt_debug_want_extra_isize,
+       Opt_nowarn_on_error, Opt_mblk_io_submit, Opt_debug_want_extra_isize,
        Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity,
        Opt_inode_readahead_blks, Opt_journal_ioprio,
        Opt_dioread_nolock, Opt_dioread_lock,
@@ -1818,8 +1817,6 @@ static const struct fs_parameter_spec ext4_param_specs[] = {
        fsparam_flag    ("nodelalloc",          Opt_nodelalloc),
        fsparam_flag    ("warn_on_error",       Opt_warn_on_error),
        fsparam_flag    ("nowarn_on_error",     Opt_nowarn_on_error),
-       fsparam_flag    ("lazytime",            Opt_lazytime),
-       fsparam_flag    ("nolazytime",          Opt_nolazytime),
        fsparam_u32     ("debug_want_extra_isize",
                                                Opt_debug_want_extra_isize),
        fsparam_flag    ("mblk_io_submit",      Opt_removed),
@@ -2251,12 +2248,6 @@ static int ext4_parse_param(struct fs_context *fc, struct fs_parameter *param)
        case Opt_i_version:
                ctx_set_flags(ctx, SB_I_VERSION);
                return 0;
-       case Opt_lazytime:
-               ctx_set_flags(ctx, SB_LAZYTIME);
-               return 0;
-       case Opt_nolazytime:
-               ctx_clear_flags(ctx, SB_LAZYTIME);
-               return 0;
        case Opt_inlinecrypt:
 #ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
                ctx_set_flags(ctx, SB_INLINECRYPT);
@@ -6259,7 +6250,7 @@ static int __ext4_remount(struct fs_context *fc, struct super_block *sb,
         * either way we need to make sure it matches in both *flags and
         * s_flags. Copy those selected flags from *flags to s_flags
         */
-       vfs_flags = SB_LAZYTIME | SB_I_VERSION;
+       vfs_flags = SB_I_VERSION;
        sb->s_flags = (sb->s_flags & ~vfs_flags) | (*flags & vfs_flags);
 
        ext4_apply_options(fc, sb);