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bcachefs: Introduce lock_graph_pop_from

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This patch introduces a helper function called lock_graph_pop_from,
it pops the graph from i.

Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Alan Huang
2024-10-03 03:06:31 +08:00
committed by Kent Overstreet
parent b5c3dcd0db
commit 6853a5e5d4
1 changed files with 7 additions and 2 deletions
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fs/bcachefs/btree_locking.c
+7 -2
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@@ -109,6 +109,12 @@ static noinline void lock_graph_pop_all(struct lock_graph *g)
lock_graph_up(g);
}
static noinline void lock_graph_pop_from(struct lock_graph *g, struct trans_waiting_for_lock *i)
{
while (g->g + g->nr > i)
lock_graph_up(g);
}
static void __lock_graph_down(struct lock_graph *g, struct btree_trans *trans)
{
g->g[g->nr++] = (struct trans_waiting_for_lock) {
@@ -131,8 +137,7 @@ static bool lock_graph_remove_non_waiters(struct lock_graph *g)
for (i = g->g + 1; i < g->g + g->nr; i++)
if (i->trans->locking != i->node_want ||
i->trans->locking_wait.start_time != i[-1].lock_start_time) {
while (g->g + g->nr > i)
lock_graph_up(g);
lock_graph_pop_from(g, i);
return true;
}