Commit 535e2f75 authored by Allison Henderson's avatar Allison Henderson Committed by Dave Chinner
Browse files

xfs: Add larp debug option 



This patch adds a debug option to enable log attribute replay. Eventually
this can be removed when delayed attrs becomes permanent.

Signed-off-by: default avatarAllison Henderson <allison.henderson@oracle.com>
Reviewed-by: default avatarChandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent abd61ca3

fs/xfs/libxfs/xfs_attr.h

+4 −0
Original line number Diff line number Diff line
@@ -30,7 +30,11 @@ struct xfs_attr_list_context; 


static inline bool xfs_has_larp(struct xfs_mount *mp)

{

#ifdef DEBUG

	return xfs_globals.larp;

#else

	return false;

#endif

}



/*

fs/xfs/xfs_globals.c

+1 −0
Original line number Diff line number Diff line
@@ -41,5 +41,6 @@ struct xfs_globals xfs_globals = { 
#endif

#ifdef DEBUG

	.pwork_threads		=	-1,	/* automatic thread detection */

	.larp			=	false,	/* log attribute replay */

#endif

};

fs/xfs/xfs_sysctl.h

+1 −0
Original line number Diff line number Diff line
@@ -83,6 +83,7 @@ extern xfs_param_t xfs_params; 
struct xfs_globals {

#ifdef DEBUG

	int	pwork_threads;		/* parallel workqueue threads */

	bool	larp;			/* log attribute replay */

#endif

	int	log_recovery_delay;	/* log recovery delay (secs) */

	int	mount_delay;		/* mount setup delay (secs) */

fs/xfs/xfs_sysfs.c

+24 −0
Original line number Diff line number Diff line
@@ -228,6 +228,29 @@ pwork_threads_show( 
	return sysfs_emit(buf, "%d\n", xfs_globals.pwork_threads);

}

XFS_SYSFS_ATTR_RW(pwork_threads);



static ssize_t

larp_store(

	struct kobject	*kobject,

	const char	*buf,

	size_t		count)

{

	ssize_t		ret;



	ret = kstrtobool(buf, &xfs_globals.larp);

	if (ret < 0)

		return ret;

	return count;

}



STATIC ssize_t

larp_show(

	struct kobject	*kobject,

	char		*buf)

{

	return snprintf(buf, PAGE_SIZE, "%d\n", xfs_globals.larp);

}

XFS_SYSFS_ATTR_RW(larp);

#endif /* DEBUG */



static struct attribute *xfs_dbg_attrs[] = {
@@ -237,6 +260,7 @@ static struct attribute *xfs_dbg_attrs[] = { 
	ATTR_LIST(always_cow),

#ifdef DEBUG

	ATTR_LIST(pwork_threads),

	ATTR_LIST(larp),

#endif

	NULL,

};