The patch titled
Subject: mm: add comment explaining task state setting in bdi_forker_thread()
has been removed from the -mm tree. Its filename was
mm-add-comment-explaining-task-state-setting-in-bdi_forker_thread.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Jan Kara <jack@xxxxxxx>
Subject: mm: add comment explaining task state setting in bdi_forker_thread()
Signed-off-by: Jan Kara <jack@xxxxxxx>
Acked-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxx>
---
mm/backing-dev.c | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN mm/backing-dev.c~mm-add-comment-explaining-task-state-setting-in-bdi_forker_thread mm/backing-dev.c
--- a/mm/backing-dev.c~mm-add-comment-explaining-task-state-setting-in-bdi_forker_thread
+++ a/mm/backing-dev.c
@@ -401,6 +401,13 @@ static int bdi_forker_thread(void *ptr)
}
spin_lock_bh(&bdi_lock);
+ /*
+ * In the following loop we are going to check whether we have
+ * some work to do without any synchronization with tasks
+ * waking us up to do work for them. So we have to set task
+ * state already here so that we don't miss wakeups coming
+ * after we verify some condition.
+ */
set_current_state(TASK_INTERRUPTIBLE);
list_for_each_entry(bdi, &bdi_list, bdi_list) {
_
Patches currently in -mm which might be from jack@xxxxxxx are
origin.patch
linux-next.patch
mm-vmscan-do-not-writeback-filesystem-pages-in-direct-reclaim.patch
mm-vmscan-remove-dead-code-related-to-lumpy-reclaim-waiting-on-pages-under-writeback.patch
xfs-warn-if-direct-reclaim-tries-to-writeback-pages.patch
ext4-warn-if-direct-reclaim-tries-to-writeback-pages.patch
mm-vmscan-do-not-writeback-filesystem-pages-in-kswapd-except-in-high-priority.patch
mm-vmscan-throttle-reclaim-if-encountering-too-many-dirty-pages-under-writeback.patch
mm-vmscan-immediately-reclaim-end-of-lru-dirty-pages-when-writeback-completes.patch
mm-add-comment-explaining-task-state-setting-in-bdi_forker_thread-fix.patch
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