From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 68C126B02F8 for ; Wed, 16 May 2018 01:45:00 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id b64-v6so1898655pfl.13 for ; Tue, 15 May 2018 22:45:00 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org. [2607:7c80:54:e::133]) by mx.google.com with ESMTPS id f91-v6si1835394plb.510.2018.05.15.22.44.59 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 15 May 2018 22:44:59 -0700 (PDT) From: Christoph Hellwig Subject: [PATCH 12/14] lustre: separate errno from VM_FAULT_* values Date: Wed, 16 May 2018 07:43:46 +0200 Message-Id: <20180516054348.15950-13-hch@lst.de> In-Reply-To: <20180516054348.15950-1-hch@lst.de> References: <20180516054348.15950-1-hch@lst.de> Sender: owner-linux-mm@kvack.org List-ID: To: Souptick Joarder , Matthew Wilcox Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, devel@lists.orangefs.org, ceph-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-mtd@lists.infradead.org, dri-devel@lists.freedesktop.org, lustre-devel@lists.lustre.org, linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org Signed-off-by: Christoph Hellwig --- .../staging/lustre/lustre/llite/llite_mmap.c | 37 +++++++------------ .../lustre/lustre/llite/vvp_internal.h | 2 +- 2 files changed, 14 insertions(+), 25 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 214b07554e62..061d98871959 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -231,23 +231,18 @@ static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage, return result; } -static inline int to_fault_error(int result) +static inline vm_fault_t to_fault_error(int result) { switch (result) { case 0: - result = VM_FAULT_LOCKED; - break; + return VM_FAULT_LOCKED; case -EFAULT: - result = VM_FAULT_NOPAGE; - break; + return VM_FAULT_NOPAGE; case -ENOMEM: - result = VM_FAULT_OOM; - break; + return VM_FAULT_OOM; default: - result = VM_FAULT_SIGBUS; - break; + return VM_FAULT_SIGBUS; } - return result; } /** @@ -261,7 +256,7 @@ static inline int to_fault_error(int result) * \retval VM_FAULT_ERROR on general error * \retval NOPAGE_OOM not have memory for allocate new page */ -static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf) +static vm_fault_t ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf) { struct lu_env *env; struct cl_io *io; @@ -269,7 +264,7 @@ static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf) struct page *vmpage; unsigned long ra_flags; int result = 0; - int fault_ret = 0; + vm_fault_t fault_ret = 0; u16 refcheck; env = cl_env_get(&refcheck); @@ -323,7 +318,7 @@ static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf) return fault_ret; } -static int ll_fault(struct vm_fault *vmf) +static vm_fault_t ll_fault(struct vm_fault *vmf) { int count = 0; bool printed = false; @@ -364,7 +359,7 @@ static int ll_fault(struct vm_fault *vmf) return result; } -static int ll_page_mkwrite(struct vm_fault *vmf) +static vm_fault_t ll_page_mkwrite(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; int count = 0; @@ -390,22 +385,16 @@ static int ll_page_mkwrite(struct vm_fault *vmf) switch (result) { case 0: LASSERT(PageLocked(vmf->page)); - result = VM_FAULT_LOCKED; - break; + return VM_FAULT_LOCKED; case -ENODATA: case -EAGAIN: case -EFAULT: - result = VM_FAULT_NOPAGE; - break; + return VM_FAULT_NOPAGE; case -ENOMEM: - result = VM_FAULT_OOM; - break; + return VM_FAULT_OOM; default: - result = VM_FAULT_SIGBUS; - break; + return VM_FAULT_SIGBUS; } - - return result; } /** diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 7d3abb43584a..c194966a3d82 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -83,7 +83,7 @@ struct vvp_io { /** * fault API used bitflags for return code. */ - unsigned int ft_flags; + vm_fault_t ft_flags; /** * check that flags are from filemap_fault */ -- 2.17.0