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scoutfs: add .show_options

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Add the vfs callback that prints mount options in /proc files.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2019-06-05 14:11:09 -07:00
committed by Zach Brown
parent c061ada671
commit 7d56d8f34f
1 changed files with 11 additions and 0 deletions
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11
kmod/src/super.c
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@@ -133,6 +133,16 @@ static int scoutfs_statfs(struct dentry *dentry, struct kstatfs *kst)
return 0;
}
static int scoutfs_show_options(struct seq_file *seq, struct dentry *root)
{
struct super_block *sb = root->d_sb;
struct mount_options *opts = &SCOUTFS_SB(sb)->opts;
seq_printf(seq, ",uniq_name=%s", opts->uniq_name);
return 0;
}
static int scoutfs_sync_fs(struct super_block *sb, int wait)
{
trace_scoutfs_sync_fs(sb, wait);
@@ -190,6 +200,7 @@ static const struct super_operations scoutfs_super_ops = {
.destroy_inode = scoutfs_destroy_inode,
.sync_fs = scoutfs_sync_fs,
.statfs = scoutfs_statfs,
.show_options = scoutfs_show_options,
.put_super = scoutfs_put_super,
};