ocfs2: Implement show_options()
Implement sops->show_options() so as to allow /proc/mounts to show the mount options. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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@ -39,6 +39,7 @@
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#include <linux/parser.h>
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#include <linux/crc32.h>
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#include <linux/debugfs.h>
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#include <linux/mount.h>
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#include <cluster/nodemanager.h>
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@ -91,6 +92,7 @@ struct mount_options
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static int ocfs2_parse_options(struct super_block *sb, char *options,
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struct mount_options *mopt,
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int is_remount);
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static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt);
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static void ocfs2_put_super(struct super_block *sb);
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static int ocfs2_mount_volume(struct super_block *sb);
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static int ocfs2_remount(struct super_block *sb, int *flags, char *data);
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@ -133,6 +135,7 @@ static const struct super_operations ocfs2_sops = {
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.write_super = ocfs2_write_super,
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.put_super = ocfs2_put_super,
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.remount_fs = ocfs2_remount,
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.show_options = ocfs2_show_options,
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};
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enum {
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@ -830,6 +833,41 @@ bail:
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return status;
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}
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static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
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{
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struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb);
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unsigned long opts = osb->s_mount_opt;
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if (opts & OCFS2_MOUNT_HB_LOCAL)
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seq_printf(s, ",_netdev,heartbeat=local");
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else
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seq_printf(s, ",heartbeat=none");
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if (opts & OCFS2_MOUNT_NOINTR)
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seq_printf(s, ",nointr");
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if (opts & OCFS2_MOUNT_DATA_WRITEBACK)
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seq_printf(s, ",data=writeback");
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else
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seq_printf(s, ",data=ordered");
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if (opts & OCFS2_MOUNT_BARRIER)
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seq_printf(s, ",barrier=1");
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if (opts & OCFS2_MOUNT_ERRORS_PANIC)
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seq_printf(s, ",errors=panic");
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else
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seq_printf(s, ",errors=remount-ro");
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if (osb->preferred_slot != OCFS2_INVALID_SLOT)
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seq_printf(s, ",preferred_slot=%d", osb->preferred_slot);
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if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM)
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seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum);
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return 0;
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}
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static int __init ocfs2_init(void)
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{
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int status;
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