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Commit b3d0ab7e authored by Jens Axboe's avatar Jens Axboe
Browse files

exofs: add bdi backing to mount session 



This ensures that dirty data gets flushed properly.

Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 9df9c8b9

fs/exofs/exofs.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -35,6 +35,7 @@ 




#include <linux/fs.h>

#include <linux/fs.h>

#include <linux/time.h>

#include <linux/time.h>

#include <linux/backing-dev.h>

#include "common.h"

#include "common.h"





/* FIXME: Remove once pnfs hits mainline

/* FIXME: Remove once pnfs hits mainline
@@ -92,6 +93,7 @@ struct exofs_sb_info { 
	struct exofs_layout	layout;		/* Default files layout,

	struct exofs_layout	layout;		/* Default files layout,

						 * contains the variable osd_dev

						 * contains the variable osd_dev

						 * array. Keep last */

						 * array. Keep last */

	struct backing_dev_info bdi;

	struct osd_dev	*_min_one_dev[1];	/* Place holder for one dev   */

	struct osd_dev	*_min_one_dev[1];	/* Place holder for one dev   */

};

};

fs/exofs/super.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -302,6 +302,7 @@ static void exofs_put_super(struct super_block *sb) 
	_exofs_print_device("Unmounting", NULL, sbi->layout.s_ods[0],

	_exofs_print_device("Unmounting", NULL, sbi->layout.s_ods[0],

			    sbi->layout.s_pid);

			    sbi->layout.s_pid);





	bdi_destroy(&sbi->bdi);

	exofs_free_sbi(sbi);

	exofs_free_sbi(sbi);

	sb->s_fs_info = NULL;

	sb->s_fs_info = NULL;

}

}
@@ -546,6 +547,10 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent) 
	if (!sbi)

	if (!sbi)

		return -ENOMEM;

		return -ENOMEM;





	ret = bdi_setup_and_register(&sbi->bdi, "exofs", BDI_CAP_MAP_COPY);

	if (ret)

		goto free_bdi;



	/* use mount options to fill superblock */

	/* use mount options to fill superblock */

	od = osduld_path_lookup(opts->dev_name);

	od = osduld_path_lookup(opts->dev_name);

	if (IS_ERR(od)) {

	if (IS_ERR(od)) {
@@ -612,6 +617,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent) 
	}

	}





	/* set up operation vectors */

	/* set up operation vectors */

	sb->s_bdi = &sbi->bdi;

	sb->s_fs_info = sbi;

	sb->s_fs_info = sbi;

	sb->s_op = &exofs_sops;

	sb->s_op = &exofs_sops;

	sb->s_export_op = &exofs_export_ops;

	sb->s_export_op = &exofs_export_ops;
@@ -643,6 +649,8 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent) 
	return 0;

	return 0;





free_sbi:

free_sbi:

	bdi_destroy(&sbi->bdi);

free_bdi:

	EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",

	EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",

		  opts->dev_name, sbi->layout.s_pid, ret);

		  opts->dev_name, sbi->layout.s_pid, ret);

	exofs_free_sbi(sbi);

	exofs_free_sbi(sbi);