From 3c958bd23b60c22947b857d2cb13196e2cc58c58 Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Tue, 28 Nov 2017 10:43:10 +0800 Subject: [PATCH] btrfs: add helper for device path or missing This patch creates a helper function to get either the rcu device path or missing. Signed-off-by: Anand Jain [ rename to btrfs_dev_name, switch to if/else ] Signed-off-by: David Sterba --- fs/btrfs/dev-replace.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 7c655f9a7a50..483eb62b9b27 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -304,6 +304,14 @@ void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info) dev_replace->cursor_left_last_write_of_item; } +static char* btrfs_dev_name(struct btrfs_device *device) +{ + if (device->missing) + return ""; + else + return rcu_str_deref(device->name); +} + int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info, const char *tgtdev_name, u64 srcdevid, const char *srcdev_name, int read_src) @@ -363,8 +371,7 @@ int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info, btrfs_info_in_rcu(fs_info, "dev_replace from %s (devid %llu) to %s started", - src_device->missing ? "" : - rcu_str_deref(src_device->name), + btrfs_dev_name(src_device), src_device->devid, rcu_str_deref(tgt_device->name)); @@ -538,8 +545,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, } else { btrfs_err_in_rcu(fs_info, "btrfs_scrub_dev(%s, %llu, %s) failed %d", - src_device->missing ? "" : - rcu_str_deref(src_device->name), + btrfs_dev_name(src_device), src_device->devid, rcu_str_deref(tgt_device->name), scrub_ret); btrfs_dev_replace_unlock(dev_replace, 1); @@ -557,8 +563,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, btrfs_info_in_rcu(fs_info, "dev_replace from %s (devid %llu) to %s finished", - src_device->missing ? "" : - rcu_str_deref(src_device->name), + btrfs_dev_name(src_device), src_device->devid, rcu_str_deref(tgt_device->name)); tgt_device->is_tgtdev_for_dev_replace = 0; @@ -814,12 +819,10 @@ static int btrfs_dev_replace_kthread(void *data) progress = btrfs_dev_replace_progress(fs_info); progress = div_u64(progress, 10); btrfs_info_in_rcu(fs_info, - "continuing dev_replace from %s (devid %llu) to %s @%u%%", - dev_replace->srcdev->missing ? "" - : rcu_str_deref(dev_replace->srcdev->name), + "continuing dev_replace from %s (devid %llu) to target %s @%u%%", + btrfs_dev_name(dev_replace->srcdev), dev_replace->srcdev->devid, - dev_replace->tgtdev ? rcu_str_deref(dev_replace->tgtdev->name) - : "", + btrfs_dev_name(dev_replace->tgtdev), (unsigned int)progress); btrfs_dev_replace_continue_on_mount(fs_info); -- 2.30.2