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| author |   Nikolay Borisov <nborisov@suse.com> | 2020-10-08 15:24:28 +0300 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2020-12-08 15:53:19 +0100 |
| commit | e4e428816192798c2fa473ff67d9032b94f93291 (patch) | |
| tree | 34e1545005c8f4c23a8eba409880715b80c7d1aa /fs/btrfs/scrub.c | |
| parent | btrfs: use helpers to convert from seconds to jiffies in transaction_kthread (diff) | |
| download | linux-dev-e4e428816192798c2fa473ff67d9032b94f93291.tar.xz linux-dev-e4e428816192798c2fa473ff67d9032b94f93291.zip | |
btrfs: remove redundant time check in transaction kthread loop
The value obtained from ktime_get_seconds() is guaranteed to be
monotonically increasing since it's taken from CLOCK_MONOTONIC. As
transaction_kthread obtains a reference to the currently running
transaction under holding btrfs_fs_info::trans_lock it's guaranteed to:
a) see an initialized 'cur', whose start_time is guaranteed to be smaller
than 'now'
or
b) not obtain a 'cur' and simply go to sleep.
Given this remove the unnecessary check, if it sees
now < cur->start_time this would imply there are far greater problems on
the machine.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/scrub.c')
0 files changed, 0 insertions, 0 deletions