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authorJosef Bacik <josef@toxicpanda.com>2020-10-16 18:29:16 +0300
committerDavid Sterba <dsterba@suse.com>2020-12-08 17:53:40 +0300
commitab0b4a3ebf145f54dc23b66a411f4bbbc59b0d96 (patch)
tree4b9afc22b39d0ee8b8af7f1824f49bb7cec16d13 /fs/btrfs/super.c
parentceafe3cc39923fc80b9091f3fd993e6de1b6a399 (diff)
downloadlinux-ab0b4a3ebf145f54dc23b66a411f4bbbc59b0d96.tar.xz
btrfs: add a helper to print out rescue= options
We're going to have a lot of rescue options, add a helper to collapse the /proc/mounts output to rescue=option1:option2:option3 format. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r--fs/btrfs/super.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f99e89ec46b2..c5095a23befd 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1392,11 +1392,18 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
return btrfs_commit_transaction(trans);
}
+static void print_rescue_option(struct seq_file *seq, const char *s, bool *printed)
+{
+ seq_printf(seq, "%s%s", (*printed) ? ":" : ",rescue=", s);
+ *printed = true;
+}
+
static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
{
struct btrfs_fs_info *info = btrfs_sb(dentry->d_sb);
const char *compress_type;
const char *subvol_name;
+ bool printed = false;
if (btrfs_test_opt(info, DEGRADED))
seq_puts(seq, ",degraded");
@@ -1429,7 +1436,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
if (btrfs_test_opt(info, NOTREELOG))
seq_puts(seq, ",notreelog");
if (btrfs_test_opt(info, NOLOGREPLAY))
- seq_puts(seq, ",rescue=nologreplay");
+ print_rescue_option(seq, "nologreplay", &printed);
if (btrfs_test_opt(info, FLUSHONCOMMIT))
seq_puts(seq, ",flushoncommit");
if (btrfs_test_opt(info, DISCARD_SYNC))