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From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
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CC:     Song Liu <songliubraving@fb.com>,
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        Laurent Dufour <ldufour@linux.ibm.com>,
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        Axel Rasmussen <axelrasmussen@google.com>,
        Suren Baghdasaryan <surenb@google.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Rik van Riel <riel@surriel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Michel Lespinasse <walken.cr@gmail.com>,
        Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 90/94] bpf: Remove VMA linked list
Thread-Topic: [PATCH 90/94] bpf: Remove VMA linked list
Thread-Index: AQHXPERDlT9aoUT8Uk+Bic1SvYaLig==
Date:   Wed, 28 Apr 2021 15:36:31 +0000
Message-ID: <20210428153542.2814175-91-Liam.Howlett@Oracle.com>
References: <20210428153542.2814175-1-Liam.Howlett@Oracle.com>
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Use vma_next() and remove reference to the start of the linked list

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 kernel/bpf/task_iter.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c
index b68cb5d6d6eb..c1c71adc7c1a 100644
--- a/kernel/bpf/task_iter.c
+++ b/kernel/bpf/task_iter.c
@@ -400,10 +400,10 @@ task_vma_seq_get_next(struct bpf_iter_seq_task_vma_in=
fo *info)
=20
 	switch (op) {
 	case task_vma_iter_first_vma:
-		curr_vma =3D curr_task->mm->mmap;
+		curr_vma =3D find_vma(curr_task->mm, 0);
 		break;
 	case task_vma_iter_next_vma:
-		curr_vma =3D curr_vma->vm_next;
+		curr_vma =3D vma_next(curr_vma->vm_mm, curr_vma);
 		break;
 	case task_vma_iter_find_vma:
 		/* We dropped mmap_lock so it is necessary to use find_vma
@@ -417,7 +417,7 @@ task_vma_seq_get_next(struct bpf_iter_seq_task_vma_info=
 *info)
 		if (curr_vma &&
 		    curr_vma->vm_start =3D=3D info->prev_vm_start &&
 		    curr_vma->vm_end =3D=3D info->prev_vm_end)
-			curr_vma =3D curr_vma->vm_next;
+			curr_vma =3D vma_next(curr_vma->vm_mm, curr_vma);
 		break;
 	}
 	if (!curr_vma) {
--=20
2.30.2