From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lamorak.hansenpartnership.com (lamorak.hansenpartnership.com [198.37.111.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA7A62A8C1; Fri, 28 Mar 2025 14:36:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.37.111.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743172564; cv=none; b=bhrfZ5s858ryUe5XWdMRNVZuqNdg9/8BqRyWUqZPDKRFwV0/drD9XmlHOy1F2JsXrcAHv1s5MnDhSvcuYMdG4q75IopCpB+uQEObLYBYacVdZ6J2mfH3JMkJKjzrvBzNBEPTAqjGEHj5rZesfqJdqs1ZOhvYyR5yYFo37Nf/iNg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743172564; c=relaxed/simple; bh=LIwflXj2px+fE6ChVvAfs05ebTVr9tVy+ie4wVV1c6Q=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; 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 8mT2Eh9SkH+YVOmaKsajgZgrBxA7fWmGoxXswEVxJIFj3vW7yNc0C5HaUdYa5iGOMs4kg2ht4s7yy7NRQuh7BifWjo6BQ6k4S1H+6axZucxhSV1L6zN9d+lr3Xo/vy1unzA== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2025-03-28 at 10:21 -0400, James Bottomley wrote: > [...] > That's right.=C2=A0 I'm happy to post my patch below, but it depends on A= l > accepting the simple_next_child() proposal, so it doesn't apply to > any > tree. And here's the patch I forgot to attach. Regards, James --- diff --git a/fs/efivarfs/internal.h b/fs/efivarfs/internal.h index ac6a1dd0a6a5..f913b6824289 100644 --- a/fs/efivarfs/internal.h +++ b/fs/efivarfs/internal.h @@ -17,7 +17,6 @@ struct efivarfs_fs_info { struct efivarfs_mount_opts mount_opts; struct super_block *sb; struct notifier_block nb; - struct notifier_block pm_nb; }; =20 struct efi_variable { diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c index 7d47f8d7ad1d..3398ec5c60b3 100644 --- a/fs/efivarfs/super.c +++ b/fs/efivarfs/super.c @@ -119,12 +119,15 @@ static int efivarfs_statfs(struct dentry *dentry, str= uct kstatfs *buf) =20 return 0; } + +static int efivarfs_thaw(struct super_block *sb, enum freeze_holder who); static const struct super_operations efivarfs_ops =3D { .statfs =3D efivarfs_statfs, .drop_inode =3D generic_delete_inode, .alloc_inode =3D efivarfs_alloc_inode, .free_inode =3D efivarfs_free_inode, .show_options =3D efivarfs_show_options, + .thaw_super =3D efivarfs_thaw, }; =20 /* @@ -367,8 +370,6 @@ static int efivarfs_fill_super(struct super_block *sb, = struct fs_context *fc) if (err) return err; =20 - register_pm_notifier(&sfi->pm_nb); - return efivar_init(efivarfs_callback, sb, true); } =20 @@ -432,24 +433,17 @@ static int efivarfs_check_missing(efi_char16_t *name1= 6, efi_guid_t vendor, return err; } =20 -static int efivarfs_pm_notify(struct notifier_block *nb, unsigned long act= ion, - void *ptr) +static int efivarfs_thaw(struct super_block *sb, enum freeze_holder who) { - struct efivarfs_fs_info *sfi =3D container_of(nb, struct efivarfs_fs_info= , - pm_nb); static bool rescan_done =3D true; - struct dentry *parent =3D sfi->sb->s_root; + struct dentry *parent =3D sb->s_root; struct dentry *child =3D NULL; =20 - if (action =3D=3D PM_HIBERNATION_PREPARE) { - rescan_done =3D false; - return NOTIFY_OK; - } else if (action !=3D PM_POST_HIBERNATION) { - return NOTIFY_DONE; - } + if ((who & FREEZE_FOR_HIBERNATE) =3D=3D 0) + return 0; =20 if (rescan_done) - return NOTIFY_DONE; + return 0; =20 pr_info("efivarfs: resyncing variable state\n"); =20 @@ -488,9 +482,9 @@ static int efivarfs_pm_notify(struct notifier_block *nb= , unsigned long action, * then loop over variables, creating them if there's no matching * dentry */ - efivar_init(efivarfs_check_missing, sfi->sb, false); + efivar_init(efivarfs_check_missing, sb, false); =20 - return NOTIFY_OK; + return 0; } =20 static int efivarfs_init_fs_context(struct fs_context *fc) @@ -510,9 +504,6 @@ static int efivarfs_init_fs_context(struct fs_context *= fc) fc->s_fs_info =3D sfi; fc->ops =3D &efivarfs_context_ops; =20 - sfi->pm_nb.notifier_call =3D efivarfs_pm_notify; - sfi->pm_nb.priority =3D 0; - return 0; } =20 @@ -521,7 +512,6 @@ static void efivarfs_kill_sb(struct super_block *sb) struct efivarfs_fs_info *sfi =3D sb->s_fs_info; =20 blocking_notifier_chain_unregister(&efivar_ops_nh, &sfi->nb); - unregister_pm_notifier(&sfi->pm_nb); kill_litter_super(sb); =20 kfree(sfi);