Commit 94bfa3b6692c7a3f6f119596724204ec975d3ef0
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f3b577dec1
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idr: fix RCU lockdep splat in idr_get_next()
Convert to rcu_dereference_raw() given that many callers may have many different locking models. Located-by: Miles Lane <miles.lane@gmail.com> Tested-by: Miles Lane <miles.lane@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff
lib/idr.c
| ... | ... | @@ -602,7 +602,7 @@ |
| 602 | 602 | /* find first ent */ |
| 603 | 603 | n = idp->layers * IDR_BITS; |
| 604 | 604 | max = 1 << n; |
| 605 | - p = rcu_dereference(idp->top); | |
| 605 | + p = rcu_dereference_raw(idp->top); | |
| 606 | 606 | if (!p) |
| 607 | 607 | return NULL; |
| 608 | 608 | |
| ... | ... | @@ -610,7 +610,7 @@ |
| 610 | 610 | while (n > 0 && p) { |
| 611 | 611 | n -= IDR_BITS; |
| 612 | 612 | *paa++ = p; |
| 613 | - p = rcu_dereference(p->ary[(id >> n) & IDR_MASK]); | |
| 613 | + p = rcu_dereference_raw(p->ary[(id >> n) & IDR_MASK]); | |
| 614 | 614 | } |
| 615 | 615 | |
| 616 | 616 | if (p) { |