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@vger.kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>

diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index bcb21ae..ecce849 100644 (file)
--- 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);