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[216.228.112.21]) by smtp.gmail.com with ESMTPSA id u9sm38179744pgc.5.2019.08.01.19.20.46 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 19:20:47 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Subject: [PATCH 23/34] uprobes: convert put_page() to put_user_page*() Date: Thu, 1 Aug 2019 19:19:54 -0700 Message-Id: <20190802022005.5117-24-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190802022005.5117-1-jhubbard@nvidia.com> References: <20190802022005.5117-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-Mailman-Approved-At: Fri, 02 Aug 2019 08:19:03 +0000 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=lKIFYbXGeRFczJ7GPuSawhtMV9YIx2+MYUTps7oOTAE=; b=R1dyNzOze/eqllrUqxRpjhDn38RC7VsduB92QlfhFLYwuwka43d0Yt9myEGcw6WlZm fYIT193clb3cCKkKRa4gQjk01O64tt0BXAAw6nkursyUCEWzk96M/WL6vzziPZU6IL+r rvITeJdAvAjJK8q/L91CFM+eVayVF1xEXzXBIhRNt9HdhEGbz9zWiE6QknGvjT5Q+PbG 0FUQwvdG6OLHf8hS8zvFCr0JHd7YtbTEpJO3//HXWtUvFA/ZCzXGA0y95q3Jed0ZzVaE Qk7ZxouFXvlN6jsSJv67cehYgfxqrCWaOQlJqOD886yacjrOWwt50AkY8+51bO/ECErB IQTg== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Jan Kara , kvm@vger.kernel.org, Peter Zijlstra , Dave Hansen , Dave Chinner , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, sparclinux@vger.kernel.org, Ira Weiny , ceph-devel@vger.kernel.org, devel@driverdev.osuosl.org, rds-devel@oss.oracle.com, linux-rdma@vger.kernel.org, Jiri Olsa , x86@kernel.org, amd-gfx@lists.freedesktop.org, Christoph Hellwig , Jason Gunthorpe , Ingo Molnar , xen-devel@lists.xenproject.org, devel@lists.orangefs.org, linux-media@vger.kernel.org, John Hubbard , intel-gfx@lists.freedesktop.org, Arnaldo Carvalho de Melo , linux-block@vger.kernel.org, =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , linux-rpi-kernel@lists.infradead.org, Namhyung Kim , Dan Williams , linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, LKML , Alexander Shishkin , linux-xfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: John Hubbard For pages that were retained via get_user_pages*(), release those pages via the new put_user_page*() routines, instead of via put_page() or release_pages(). This is part a tree-wide conversion, as described in commit fc1d8e7cca2d ("mm: introduce put_user_page*(), placeholder versions"). Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: John Hubbard --- kernel/events/uprobes.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 84fa00497c49..4a575de8cec8 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -397,7 +397,7 @@ __update_ref_ctr(struct mm_struct *mm, unsigned long vaddr, short d) ret = 0; out: kunmap_atomic(kaddr); - put_page(page); + put_user_page(page); return ret; } @@ -504,7 +504,7 @@ int uprobe_write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm, ret = __replace_page(vma, vaddr, old_page, new_page); put_page(new_page); put_old: - put_page(old_page); + put_user_page(old_page); if (unlikely(ret == -EAGAIN)) goto retry; @@ -1981,7 +1981,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr) return result; copy_from_page(page, vaddr, &opcode, UPROBE_SWBP_INSN_SIZE); - put_page(page); + put_user_page(page); out: /* This needs to return true for any variant of the trap insn */ return is_trap_insn(&opcode);