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btrfs: rename btrfs_close_extra_device to btrfs_free_extra_devids

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This function btrfs_close_extra_devices() is about freeing
extra devids which once it may have belonged to this filesystem.
So rename it and add the comment. The _devid suffix is
appropriate as this function won't handle devices which are
outside of the filesytem being mounted.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2018-02-27 12:41:59 +08:00 committed by David Sterba
parent d02c0e2019
commit 9b99b11564
3 changed files with 10 additions and 6 deletions
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8
fs/btrfs/disk-io.c
View file

@ -2758,10 +2758,10 @@ int open_ctree(struct super_block *sb,
}
/*
* keep the device that is marked to be the target device for the
* dev_replace procedure
* Keep the devid that is marked to be the target device for the
* device replace procedure
*/
btrfs_close_extra_devices(fs_devices, 0);
btrfs_free_extra_devids(fs_devices, 0);
if (!fs_devices->latest_bdev) {
btrfs_err(fs_info, "failed to read devices");
@ -2824,7 +2824,7 @@ int open_ctree(struct super_block *sb,
goto fail_block_groups;
}
btrfs_close_extra_devices(fs_devices, 1);
btrfs_free_extra_devids(fs_devices, 1);
ret = btrfs_sysfs_add_fsid(fs_devices, NULL);
if (ret) {

6
fs/btrfs/volumes.c
View file

@ -896,7 +896,11 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
return ERR_PTR(-ENOMEM);
}
void btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices, int step)
/*
* After we have read the system tree and know devids belonging to
* this filesystem, remove the device which does not belong there.
*/
void btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices, int step)
{
struct btrfs_device *device, *next;
struct btrfs_device *latest_dev = NULL;

2
fs/btrfs/volumes.h
View file

@ -422,7 +422,7 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
struct btrfs_fs_devices **fs_devices_ret);
int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
void btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices, int step);
void btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices, int step);
void btrfs_assign_next_active_device(struct btrfs_fs_info *fs_info,
struct btrfs_device *device, struct btrfs_device *this_dev);
int btrfs_find_device_missing_or_by_path(struct btrfs_fs_info *fs_info,