linux-kernel - [PATCH 28/43] madvise: Use split_vma() instead of __split

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Date:   Tue, 29 Nov 2022 16:44:33 +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>
CC:     Liam Howlett <liam.howlett@...cle.com>,
        Liam Howlett <liam.howlett@...cle.com>
Subject: [PATCH 28/43] madvise: Use split_vma() instead of __split_vma()

From: "Liam R. Howlett" <Liam.Howlett@...cle.com>

The split_vma() wrapper is specifically for this use case, so use it.

Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 mm/madvise.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index bf23d64515e1..f29bfff3af1a 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -164,17 +164,13 @@ static int madvise_update_vma(struct vm_area_struct *vma,
 	*prev = vma;
 
 	if (start != vma->vm_start) {
-		if (unlikely(mm->map_count >= sysctl_max_map_count))
-			return -ENOMEM;
-		error = __split_vma(&vmi, vma, start, 1);
+		error = split_vma(&vmi, vma, start, 1);
 		if (error)
 			return error;
 	}
 
 	if (end != vma->vm_end) {
-		if (unlikely(mm->map_count >= sysctl_max_map_count))
-			return -ENOMEM;
-		error = __split_vma(&vmi, vma, end, 0);
+		error = split_vma(&vmi, vma, end, 0);
 		if (error)
 			return error;
 	}
-- 
2.35.1