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dm: rename suspended_bdev to bdev

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Rename suspended_bdev to bdev.

This patch doesn't change any functionality, just renames the variable.
In the next patch, the variable will be used even for non-suspended device.

(Pre-requisite for the per-target barrier support patches.)

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mikulas Patocka 2009-06-22 10:12:15 +01:00 committed by Alasdair G Kergon
parent f6bd4eb73c
commit db8fef4fab
1 changed files with 18 additions and 18 deletions
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36
drivers/md/dm.c
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@ -157,7 +157,7 @@ struct mapped_device {
* freeze/thaw support require holding onto a super block
*/
struct super_block *frozen_sb;
struct block_device *suspended_bdev;
struct block_device *bdev;
/* forced geometry settings */
struct hd_geometry geometry;
@ -1214,9 +1214,9 @@ static void free_dev(struct mapped_device *md)
{
int minor = MINOR(disk_devt(md->disk));
if (md->suspended_bdev) {
if (md->bdev) {
unlock_fs(md);
bdput(md->suspended_bdev);
bdput(md->bdev);
}
destroy_workqueue(md->wq);
mempool_destroy(md->tio_pool);
@ -1259,9 +1259,9 @@ static void __set_size(struct mapped_device *md, sector_t size)
{
set_capacity(md->disk, size);
mutex_lock(&md->suspended_bdev->bd_inode->i_mutex);
i_size_write(md->suspended_bdev->bd_inode, (loff_t)size << SECTOR_SHIFT);
mutex_unlock(&md->suspended_bdev->bd_inode->i_mutex);
mutex_lock(&md->bdev->bd_inode->i_mutex);
i_size_write(md->bdev->bd_inode, (loff_t)size << SECTOR_SHIFT);
mutex_unlock(&md->bdev->bd_inode->i_mutex);
}
static int __bind(struct mapped_device *md, struct dm_table *t)
@ -1277,7 +1277,7 @@ static int __bind(struct mapped_device *md, struct dm_table *t)
if (size != get_capacity(md->disk))
memset(&md->geometry, 0, sizeof(md->geometry));
if (md->suspended_bdev)
if (md->bdev)
__set_size(md, size);
if (!size) {
@ -1521,7 +1521,7 @@ int dm_swap_table(struct mapped_device *md, struct dm_table *table)
goto out;
/* without bdev, the device size cannot be changed */
if (!md->suspended_bdev)
if (!md->bdev)
if (get_capacity(md->disk) != dm_table_get_size(table))
goto out;
@ -1543,7 +1543,7 @@ static int lock_fs(struct mapped_device *md)
WARN_ON(md->frozen_sb);
md->frozen_sb = freeze_bdev(md->suspended_bdev);
md->frozen_sb = freeze_bdev(md->bdev);
if (IS_ERR(md->frozen_sb)) {
r = PTR_ERR(md->frozen_sb);
md->frozen_sb = NULL;
@ -1563,7 +1563,7 @@ static void unlock_fs(struct mapped_device *md)
if (!test_bit(DMF_FROZEN, &md->flags))
return;
thaw_bdev(md->suspended_bdev, md->frozen_sb);
thaw_bdev(md->bdev, md->frozen_sb);
md->frozen_sb = NULL;
clear_bit(DMF_FROZEN, &md->flags);
}
@ -1603,8 +1603,8 @@ int dm_suspend(struct mapped_device *md, unsigned suspend_flags)
/* bdget() can stall if the pending I/Os are not flushed */
if (!noflush) {
md->suspended_bdev = bdget_disk(md->disk, 0);
if (!md->suspended_bdev) {
md->bdev = bdget_disk(md->disk, 0);
if (!md->bdev) {
DMWARN("bdget failed in dm_suspend");
r = -ENOMEM;
goto out;
@ -1675,9 +1675,9 @@ int dm_suspend(struct mapped_device *md, unsigned suspend_flags)
set_bit(DMF_SUSPENDED, &md->flags);
out:
if (r && md->suspended_bdev) {
bdput(md->suspended_bdev);
md->suspended_bdev = NULL;
if (r && md->bdev) {
bdput(md->bdev);
md->bdev = NULL;
}
dm_table_put(map);
@ -1708,9 +1708,9 @@ int dm_resume(struct mapped_device *md)
unlock_fs(md);
if (md->suspended_bdev) {
bdput(md->suspended_bdev);
md->suspended_bdev = NULL;
if (md->bdev) {
bdput(md->bdev);
md->bdev = NULL;
}
clear_bit(DMF_SUSPENDED, &md->flags);