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btrfs: rename btrfs_device::scrub_device to scrub_ctx 

btrfs_device::scrub_device is not a device which is being scrubbed,
but it holds the scrub context, so rename to reflect the same. No
functional changes here.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2018-01-03 16:08:30 +08:00 committed by David Sterba
parent 922ea8994a
commit cadbc0a067
2 changed files with 8 additions and 8 deletions
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14
fs/btrfs/scrub.c
View File

@ -4145,7 +4145,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
}
btrfs_dev_replace_lock(&fs_info->dev_replace, 0);
if (dev->scrub_device ||
if (dev->scrub_ctx ||
(!is_dev_replace &&
btrfs_dev_replace_is_ongoing(&fs_info->dev_replace))) {
btrfs_dev_replace_unlock(&fs_info->dev_replace, 0);
@ -4170,7 +4170,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
return PTR_ERR(sctx);
}
sctx->readonly = readonly;
dev->scrub_device = sctx;
dev->scrub_ctx = sctx;
mutex_unlock(&fs_info->fs_devices->device_list_mutex);
/*
@ -4205,7 +4205,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
memcpy(progress, &sctx->stat, sizeof(*progress));
mutex_lock(&fs_info->scrub_lock);
dev->scrub_device = NULL;
dev->scrub_ctx = NULL;
scrub_workers_put(fs_info);
mutex_unlock(&fs_info->scrub_lock);
@ -4262,16 +4262,16 @@ int btrfs_scrub_cancel_dev(struct btrfs_fs_info *fs_info,
struct scrub_ctx *sctx;
mutex_lock(&fs_info->scrub_lock);
sctx = dev->scrub_device;
sctx = dev->scrub_ctx;
if (!sctx) {
mutex_unlock(&fs_info->scrub_lock);
return -ENOTCONN;
}
atomic_inc(&sctx->cancel_req);
while (dev->scrub_device) {
while (dev->scrub_ctx) {
mutex_unlock(&fs_info->scrub_lock);
wait_event(fs_info->scrub_pause_wait,
dev->scrub_device == NULL);
dev->scrub_ctx == NULL);
mutex_lock(&fs_info->scrub_lock);
}
mutex_unlock(&fs_info->scrub_lock);
@ -4288,7 +4288,7 @@ int btrfs_scrub_progress(struct btrfs_fs_info *fs_info, u64 devid,
mutex_lock(&fs_info->fs_devices->device_list_mutex);
dev = btrfs_find_device(fs_info, devid, NULL, NULL);
if (dev)
sctx = dev->scrub_device;
sctx = dev->scrub_ctx;
if (sctx)
memcpy(progress, &sctx->stat, sizeof(*progress));
mutex_unlock(&fs_info->fs_devices->device_list_mutex);

2
fs/btrfs/volumes.h
View File

@ -131,7 +131,7 @@ struct btrfs_device {
struct completion flush_wait;
/* per-device scrub information */
struct scrub_ctx *scrub_device;
struct scrub_ctx *scrub_ctx;
struct btrfs_work work;
struct rcu_head rcu;