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Commit d550071c authored by Sunil Mushran's avatar Sunil Mushran Committed by Mark Fasheh
Browse files

ocfs2: Implement show_options() 



Implement sops->show_options() so as to allow /proc/mounts to show the mount
options.

Signed-off-by: default avatarSunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: default avatarMark Fasheh <mark.fasheh@oracle.com>
parent 19b613d4

fs/ocfs2/super.c

+38 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 
#include <linux/parser.h>

#include <linux/crc32.h>

#include <linux/debugfs.h>

#include <linux/mount.h>



#include <cluster/nodemanager.h>
@@ -91,6 +92,7 @@ struct mount_options 
static int ocfs2_parse_options(struct super_block *sb, char *options,

			       struct mount_options *mopt,

			       int is_remount);

static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt);

static void ocfs2_put_super(struct super_block *sb);

static int ocfs2_mount_volume(struct super_block *sb);

static int ocfs2_remount(struct super_block *sb, int *flags, char *data);
@@ -133,6 +135,7 @@ static const struct super_operations ocfs2_sops = { 
	.write_super	= ocfs2_write_super,

	.put_super	= ocfs2_put_super,

	.remount_fs	= ocfs2_remount,

	.show_options   = ocfs2_show_options,

};



enum {
@@ -830,6 +833,41 @@ static int ocfs2_parse_options(struct super_block *sb, 
	return status;

}



static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)

{

	struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb);

	unsigned long opts = osb->s_mount_opt;



	if (opts & OCFS2_MOUNT_HB_LOCAL)

		seq_printf(s, ",_netdev,heartbeat=local");

	else

		seq_printf(s, ",heartbeat=none");



	if (opts & OCFS2_MOUNT_NOINTR)

		seq_printf(s, ",nointr");



	if (opts & OCFS2_MOUNT_DATA_WRITEBACK)

		seq_printf(s, ",data=writeback");

	else

		seq_printf(s, ",data=ordered");



	if (opts & OCFS2_MOUNT_BARRIER)

		seq_printf(s, ",barrier=1");



	if (opts & OCFS2_MOUNT_ERRORS_PANIC)

		seq_printf(s, ",errors=panic");

	else

		seq_printf(s, ",errors=remount-ro");



	if (osb->preferred_slot != OCFS2_INVALID_SLOT)

		seq_printf(s, ",preferred_slot=%d", osb->preferred_slot);



	if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM)

		seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum);



	return 0;

}



static int __init ocfs2_init(void)

{

	int status;