diff options
| author | Nikolay Borisov <nborisov@suse.com> | 2020-07-15 13:48:46 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-10-07 12:06:57 +0200 |
| commit | dc0ab488d2cb514e08276cbbc846b2ebb6056c2a (patch) | |
| tree | c310d59fb5fb1e090f01d5318d5d5bce4f53c1ce /fs/btrfs/reada.c | |
| parent | 1028d1c48b95c37336bed24a1dc1594e70aa67c6 (diff) | |
btrfs: factor out reada loop in __reada_start_machine
This is in preparation for moving fs_devices to proper lists.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/reada.c')
| -rw-r--r-- | fs/btrfs/reada.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index 243a2e44526e..a6bfe7ec14cb 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -767,15 +767,13 @@ static void reada_start_machine_worker(struct btrfs_work *work) kfree(rmw); } -static void __reada_start_machine(struct btrfs_fs_info *fs_info) +/* Try to start up to 10k READA requests for a group of devices */ +static int reada_start_for_fsdevs(struct btrfs_fs_devices *fs_devices) { - struct btrfs_device *device; - struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; u64 enqueued; u64 total = 0; - int i; + struct btrfs_device *device; -again: do { enqueued = 0; mutex_lock(&fs_devices->device_list_mutex); @@ -787,6 +785,18 @@ again: mutex_unlock(&fs_devices->device_list_mutex); total += enqueued; } while (enqueued && total < 10000); + + return total; +} + +static void __reada_start_machine(struct btrfs_fs_info *fs_info) +{ + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; + int i; + u64 enqueued = 0; + +again: + enqueued += reada_start_for_fsdevs(fs_devices); if (fs_devices->seed) { fs_devices = fs_devices->seed; goto again; |