The patch below does not apply to the 5.18-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a2a513be7139b279f1b5b2cee59c6c4950c34346 Mon Sep 17 00:00:00 2001 From: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx> Date: Thu, 2 Jun 2022 23:16:57 +0900 Subject: [PATCH] zonefs: fix handling of explicit_open option on mount Ignoring the explicit_open mount option on mount for devices that do not have a limit on the number of open zones must be done after the mount options are parsed and set in s_mount_opts. Move the check to ignore the explicit_open option after the call to zonefs_parse_options() in zonefs_fill_super(). Fixes: b5c00e975779 ("zonefs: open/close zone on file open/close") Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index bcb21aea990a..ecce84909ca1 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -1760,12 +1760,6 @@ static int zonefs_fill_super(struct super_block *sb, void *data, int silent) atomic_set(&sbi->s_wro_seq_files, 0); sbi->s_max_wro_seq_files = bdev_max_open_zones(sb->s_bdev); - if (!sbi->s_max_wro_seq_files && - sbi->s_mount_opts & ZONEFS_MNTOPT_EXPLICIT_OPEN) { - zonefs_info(sb, "No open zones limit. Ignoring explicit_open mount option\n"); - sbi->s_mount_opts &= ~ZONEFS_MNTOPT_EXPLICIT_OPEN; - } - atomic_set(&sbi->s_active_seq_files, 0); sbi->s_max_active_seq_files = bdev_max_active_zones(sb->s_bdev); @@ -1790,6 +1784,12 @@ static int zonefs_fill_super(struct super_block *sb, void *data, int silent) zonefs_info(sb, "Mounting %u zones", blkdev_nr_zones(sb->s_bdev->bd_disk)); + if (!sbi->s_max_wro_seq_files && + sbi->s_mount_opts & ZONEFS_MNTOPT_EXPLICIT_OPEN) { + zonefs_info(sb, "No open zones limit. Ignoring explicit_open mount option\n"); + sbi->s_mount_opts &= ~ZONEFS_MNTOPT_EXPLICIT_OPEN; + } + /* Create root directory inode */ ret = -ENOMEM; inode = new_inode(sb);