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Date: Tue, 12 Jan 2021 13:01:04 -0800 From: Randy Dunlap <rdunlap@...radead.org> To: "Liam R. Howlett" <Liam.Howlett@...cle.com>, maple-tree@...ts.infradead.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org Cc: Andrew Morton <akpm@...gle.com>, Song Liu <songliubraving@...com>, Davidlohr Bueso <dave@...olabs.net>, "Paul E . McKenney" <paulmck@...nel.org>, Matthew Wilcox <willy@...radead.org>, Jerome Glisse <jglisse@...hat.com>, 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: Re: [PATCH v2 08/70] mm/mmap: Change find_vma() to use the maple tree Hi, Please adjust the kernel-doc to be correct :) On 1/12/21 8:11 AM, Liam R. Howlett wrote: > Start using the maple tree to find VMA entries in an mm_struct. > > Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com> > --- > mm/mmap.c | 29 +++++++++++------------------ > 1 file changed, 11 insertions(+), 18 deletions(-) > > diff --git a/mm/mmap.c b/mm/mmap.c > index 65789b188c380..ab1cb0efc4c65 100644 > --- a/mm/mmap.c > +++ b/mm/mmap.c > @@ -2474,10 +2474,17 @@ get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, > > EXPORT_SYMBOL(get_unmapped_area); > > -/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */ > +/** > + * find_vma() - Find the VMA for a given address, or the next vma. May return > + * NULL in the case of no vma at addr or above %NULL > + * @mm The mm_struct to check * @mm: ... > + * @addr: The address > + * > + * Returns: The VMA assoicated with addr, or the next vma. associated > + * May return NULL in the case of no vma at addr or above. %NULL > + */ > struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) > { thanks. -- ~Randy
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