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Date: Tue, 5 Oct 2021 01:30:51 +0000 From: Liam Howlett <liam.howlett@...cle.com> To: "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, David Hildenbrand <david@...hat.com>, Douglas Gilbert <dgilbert@...erlog.com> CC: Song Liu <songliubraving@...com>, Davidlohr Bueso <dave@...olabs.net>, "Paul E . McKenney" <paulmck@...nel.org>, Matthew Wilcox <willy@...radead.org>, David Rientjes <rientjes@...gle.com>, Axel Rasmussen <axelrasmussen@...gle.com>, Suren Baghdasaryan <surenb@...gle.com>, Vlastimil Babka <vbabka@...e.cz>, Rik van Riel <riel@...riel.com>, Peter Zijlstra <peterz@...radead.org> Subject: [PATCH v3 35/66] fs/coredump: Use maple tree iterators in place of linked list From: "Liam R. Howlett" <Liam.Howlett@...cle.com> Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com> --- fs/coredump.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/coredump.c b/fs/coredump.c index 3224dee44d30..ab296bc42c58 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -1063,10 +1063,10 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma, return vma->vm_end - vma->vm_start; } -static struct vm_area_struct *first_vma(struct task_struct *tsk, +static struct vm_area_struct *first_vma(struct mm_struct *mm, struct vm_area_struct *gate_vma) { - struct vm_area_struct *ret = tsk->mm->mmap; + struct vm_area_struct *ret = find_vma(mm, 0); if (ret) return ret; @@ -1077,12 +1077,13 @@ static struct vm_area_struct *first_vma(struct task_struct *tsk, * Helper function for iterating across a vma list. It ensures that the caller * will visit `gate_vma' prior to terminating the search. */ -static struct vm_area_struct *next_vma(struct vm_area_struct *this_vma, +static struct vm_area_struct *next_vma(struct mm_struct *mm, + struct vm_area_struct *this_vma, struct vm_area_struct *gate_vma) { struct vm_area_struct *ret; - ret = this_vma->vm_next; + ret = vma_next(mm, this_vma); if (ret) return ret; if (this_vma == gate_vma) @@ -1120,8 +1121,8 @@ int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count, return -ENOMEM; } - for (i = 0, vma = first_vma(current, gate_vma); vma != NULL; - vma = next_vma(vma, gate_vma), i++) { + for (i = 0, vma = first_vma(mm, gate_vma); vma != NULL; + vma = next_vma(mm, vma, gate_vma), i++) { struct core_vma_metadata *m = (*vma_meta) + i; m->start = vma->vm_start; -- 2.30.2
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