The patch titled
Subject: fs/: remove caller signal_pending branch predictions
has been added to the -mm tree. Its filename is
fs-remove-caller-signal_pending-branch-predictions.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fs-remove-caller-signal_pending-branch-predictions.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fs-remove-caller-signal_pending-branch-predictions.patch
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The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Subject: fs/: remove caller signal_pending branch predictions
This is already done for us internally by the signal machinery.
Link: http://lkml.kernel.org/r/20181116002713.8474-7-dave@xxxxxxxxxxxx
Signed-off-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/fs/afs/fs_probe.c~fs-remove-caller-signal_pending-branch-predictions
+++ a/fs/afs/fs_probe.c
@@ -238,7 +238,7 @@ int afs_wait_for_fs_probes(struct afs_se
}
}
- if (!still_probing || unlikely(signal_pending(current)))
+ if (!still_probing || signal_pending(current))
goto stop;
schedule();
}
--- a/fs/afs/vl_probe.c~fs-remove-caller-signal_pending-branch-predictions
+++ a/fs/afs/vl_probe.c
@@ -239,7 +239,7 @@ int afs_wait_for_vl_probes(struct afs_vl
}
}
- if (!still_probing || unlikely(signal_pending(current)))
+ if (!still_probing || signal_pending(current))
goto stop;
schedule();
}
--- a/fs/buffer.c~fs-remove-caller-signal_pending-branch-predictions
+++ a/fs/buffer.c
@@ -2397,7 +2397,7 @@ static int cont_expand_zero(struct file
balance_dirty_pages_ratelimited(mapping);
- if (unlikely(fatal_signal_pending(current))) {
+ if (fatal_signal_pending(current))) {
err = -EINTR;
goto out;
}
--- a/fs/exec.c~fs-remove-caller-signal_pending-branch-predictions
+++ a/fs/exec.c
@@ -1088,7 +1088,7 @@ static int de_thread(struct task_struct
__set_current_state(TASK_KILLABLE);
spin_unlock_irq(lock);
freezable_schedule();
- if (unlikely(__fatal_signal_pending(tsk)))
+ if (__fatal_signal_pending(tsk))
goto killed;
spin_lock_irq(lock);
}
@@ -1116,7 +1116,7 @@ static int de_thread(struct task_struct
write_unlock_irq(&tasklist_lock);
cgroup_threadgroup_change_end(tsk);
freezable_schedule();
- if (unlikely(__fatal_signal_pending(tsk)))
+ if (__fatal_signal_pending(tsk))
goto killed;
}
--- a/fs/orangefs/orangefs-bufmap.c~fs-remove-caller-signal_pending-branch-predictions
+++ a/fs/orangefs/orangefs-bufmap.c
@@ -105,7 +105,7 @@ static int wait_for_free(struct slot_map
left = t;
else
left = t + (left - n);
- if (unlikely(signal_pending(current)))
+ if (signal_pending(current))
left = -EINTR;
} while (left > 0);
_
Patches currently in -mm which might be from dave@xxxxxxxxxxxx are
fs-epoll-remove-max_nests-argument-from-ep_call_nested.patch
fs-epoll-simplify-ep_send_events_proc-ready-list-loop.patch
fs-epoll-drop-ovflist-branch-prediction.patch
fs-epoll-robustify-ep-mtx-held-checks.patch
fs-epoll-reduce-the-scope-of-wq-lock-in-epoll_wait.patch
fs-epoll-reduce-the-scope-of-wq-lock-in-epoll_wait-fix.patch
fs-epoll-avoid-barrier-after-an-epoll_wait2-timeout.patch
fs-epoll-avoid-barrier-after-an-epoll_wait2-timeout-fix.patch
fs-epoll-rename-check_events-label-to-send_events.patch
fs-epoll-deal-with-wait_queue-only-once.patch
locking-mutex-remove-caller-signal_pending-branch-predictions.patch
kernel-sched-remove-caller-signal_pending-branch-predictions.patch
arch-arc-remove-caller-signal_pending_branch-predictions.patch
mm-remove-caller-signal_pending-branch-predictions.patch
fs-remove-caller-signal_pending-branch-predictions.patch
