From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-474343-1525682780-2-14656550280635507628 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no ("Email failed DMARC policy for domain") X-Spam-charsets: X-IgnoreVacation: yes ("Email failed DMARC policy for domain") X-Resolved-to: linux@kroah.com X-Delivered-to: linux@kroah.com X-Mail-from: linux-fsdevel-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=fm2; t= 1525682780; b=FCmacjcT7YxKO5itocvicuNMVhd1J/xDhFyQdWUzCUqk/FOKK5 1QIUw9Rehm2R2FH5AkQzNud9RX+DET73WUzI6dhyBWTh3lNfR5UxIjg68LWkqX0m tMRh2l4dqTwwEPp1u8T3sbyuCmEQDvo72/jV1jLySFjb+8p0AGRZFrsestmrBMxz MbmtHkY4jwRpRI7wQuQUIewPLbvhsrbFu864zEjZ4O1r5vCwdMJSWei+RfVYaNn4 vxpyGaF1z/j9nG/zERv6AhZhIpZ33Mrc3qVzMNraYDgoPXf2uNTIGk3/A3imexS+ TYWEBFbKPMLEVhpfmCyAUIT+cKs9QMvV9Mww== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:sender:list-id; s=fm2; t=1525682780; bh= uPogWDndRlHg3v0yCiWwIa3gQHTiykSy4jqYiVlNqIw=; b=DOPLqzQcb12Aa/bz hJBCqv91rteMhxHXHLsn41BI4B3ZaNIiim6hc7H+TQS7hQCprNLeo8DITeMRzK2S i9FvRHPCTZdgSfP1c/ZenMOK9btZ9VTGGi7eUVk8UjZpffvp6Q7baANYLFF3V3jI sd6Wd1mFRs+YC93whiNmqm2v3hJZk8exUu+VtZ/n0RFAVG7DnrxuH1s+EGJvUCAH 5ZtROh2hHAb3JLiEkNm+svqrFAajQMC6hPT0dqBANzHv283O2t/23o2opqC2poUK mBw4KK14WtiSoeTK5C0irsDJDFBdkrX8NHzKXzKDSO8jROGlVDvnxBVK7UFCaUh3 RDHynQ== ARC-Authentication-Results: i=1; mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=redhat.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-fsdevel-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=swEDo36k; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=redhat.com header.result=pass header_is_org_domain=yes; x-vs=clean score=0 state=0 Authentication-Results: mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=redhat.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-fsdevel-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=swEDo36k; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=redhat.com header.result=pass header_is_org_domain=yes; x-vs=clean score=0 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfPZqdkJoPXUiDW0jK3rTmBDDqoagpCC7HcGrYTNsEBZPluqdR70lCW1tYrtfBlvqAFsrgFNHDD8PftFy7xILVqpU8NG+RpTRky09dIjQk2VzvMZBegyk 2M929x2E1FlhLPvRI8IE647u4HId2yCpyONvsgPjyzJYrV8y46uOt/yN4zPU675rSEPIo4W4tGrmbwP8I+dJ6hazx+buP7k/Q3OjABSM6AAL+Auqt5y2gAvX X-CM-Analysis: v=2.3 cv=Tq3Iegfh c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=VUJBJC2UJ8kA:10 a=20KFwNOVAAAA:8 a=piVAeblzDhsfHZeUUicA:9 a=qzgJG8r8dzAA:10 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752379AbeEGIqQ (ORCPT ); Mon, 7 May 2018 04:46:16 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:42167 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752154AbeEGIid (ORCPT ); Mon, 7 May 2018 04:38:33 -0400 X-Google-Smtp-Source: AB8JxZqjesSFAE79ZzsxLX5i0yQyAd08nzuUmizSBUXwlsDZsiCXHq3eu6rw5SLs6Ffkcz/Xtb784A== From: Miklos Szeredi To: linux-unionfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 17/35] ovl: add ovl_fallocate() Date: Mon, 7 May 2018 10:37:49 +0200 Message-Id: <20180507083807.28792-18-mszeredi@redhat.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180507083807.28792-1-mszeredi@redhat.com> References: <20180507083807.28792-1-mszeredi@redhat.com> Sender: linux-fsdevel-owner@vger.kernel.org X-Mailing-List: linux-fsdevel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Implement stacked fallocate. Signed-off-by: Miklos Szeredi --- fs/overlayfs/file.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index b75ee0a3655e..3a85bbfa266a 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -279,6 +279,29 @@ static int ovl_mmap(struct file *file, struct vm_area_struct *vma) return ret; } +static long ovl_fallocate(struct file *file, int mode, loff_t offset, loff_t len) +{ + struct inode *inode = file_inode(file); + struct fd real; + const struct cred *old_cred; + int ret; + + ret = ovl_real_fdget(file, &real); + if (ret) + return ret; + + old_cred = ovl_override_creds(file_inode(file)->i_sb); + ret = vfs_fallocate(real.file, mode, offset, len); + revert_creds(old_cred); + + /* Update size */ + ovl_copyattr(ovl_inode_real(inode), inode); + + fdput(real); + + return ret; +} + const struct file_operations ovl_file_operations = { .open = ovl_open, .release = ovl_release, @@ -287,4 +310,5 @@ const struct file_operations ovl_file_operations = { .write_iter = ovl_write_iter, .fsync = ovl_fsync, .mmap = ovl_mmap, + .fallocate = ovl_fallocate, }; -- 2.14.3