From patchwork Thu Sep 3 16:18:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Carlos Maiolino X-Patchwork-Id: 11754277 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EC421109B for ; Thu, 3 Sep 2020 16:19:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDEC520829 for ; Thu, 3 Sep 2020 16:19:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="XDPDmmts" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726025AbgICQT7 (ORCPT ); Thu, 3 Sep 2020 12:19:59 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:60359 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726292AbgICQT6 (ORCPT ); Thu, 3 Sep 2020 12:19:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599149996; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5cwlkCUIAvVmsd7suZfZjwBdxXEuSBVOPJMDE92N7Zw=; b=XDPDmmtsumA/dgaSfgh3gWgCTq/oFbMK4MSawW1eEpqTrHhwiC3/gRQ8ynU/1UCMXZoBSB tDzxJtlDA1ZvtrGt79ZMFUpo9pvlUAZAOzlL+l1/rZUpXKITkzKbtNyGzfQvYF2BCHnv5s Js5VduBFRmtO0dudNENQbhdCy0hTW78= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-394-qKzMbgUZMCmaeYLyZ9KBRQ-1; Thu, 03 Sep 2020 12:19:54 -0400 X-MC-Unique: qKzMbgUZMCmaeYLyZ9KBRQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7214618999A7 for ; Thu, 3 Sep 2020 16:19:53 +0000 (UTC) Received: from eorzea.redhat.com (unknown [10.40.194.49]) by smtp.corp.redhat.com (Postfix) with ESMTP id CE63610013D9 for ; Thu, 3 Sep 2020 16:19:52 +0000 (UTC) From: Carlos Maiolino To: linux-xfs@vger.kernel.org Subject: [PATCH v4 4/4] xfs: Convert xfs_attr_sf macros to inline functions Date: Thu, 3 Sep 2020 18:18:59 +0200 Message-Id: <20200903161859.85511-1-cmaiolino@redhat.com> In-Reply-To: <20200903161724.85328-1-cmaiolino@redhat.com> References: <20200903161724.85328-1-cmaiolino@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org xfs_attr_sf_totsize() requires access to xfs_inode structure, so, once xfs_attr_shortform_addname() is its only user, move it to xfs_attr.c instead of playing with more #includes. Signed-off-by: Carlos Maiolino Reviewed-by: Darrick J. Wong Reviewed-by: Dave Chinner --- Changelog: V2: - keep macro comments above inline functions V3: - Add extra spacing in xfs_attr_sf_totsize() - Fix open curling braces on inline functions - use void * casting on xfs_attr_sf_nextentry() V4: - Fix open curling braces - remove unneeded parenthesis fs/xfs/libxfs/xfs_attr.c | 15 ++++++++++++--- fs/xfs/libxfs/xfs_attr_leaf.c | 18 +++++++++--------- fs/xfs/libxfs/xfs_attr_sf.h | 30 +++++++++++++++++++----------- fs/xfs/xfs_attr_list.c | 4 ++-- 4 files changed, 42 insertions(+), 25 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 2e055c079f397..16ef80943b8ef 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -428,7 +428,7 @@ xfs_attr_set( */ if (XFS_IFORK_Q(dp) == 0) { int sf_size = sizeof(struct xfs_attr_sf_hdr) + - XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, + xfs_attr_sf_entsize_byname(args->namelen, args->valuelen); error = xfs_bmap_add_attrfork(dp, sf_size, rsvd); @@ -523,6 +523,15 @@ xfs_attr_set( * External routines when attribute list is inside the inode *========================================================================*/ +/* total space in use */ +static inline int xfs_attr_sf_totsize(struct xfs_inode *dp) +{ + struct xfs_attr_shortform *sf = + (struct xfs_attr_shortform *)dp->i_afp->if_u1.if_data; + + return be16_to_cpu(sf->hdr.totsize); +} + /* * Add a name to the shortform attribute list structure * This is the external routine. @@ -555,8 +564,8 @@ xfs_attr_shortform_addname(xfs_da_args_t *args) args->valuelen >= XFS_ATTR_SF_ENTSIZE_MAX) return -ENOSPC; - newsize = XFS_ATTR_SF_TOTSIZE(args->dp); - newsize += XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen); + newsize = xfs_attr_sf_totsize(args->dp); + newsize += xfs_attr_sf_entsize_byname(args->namelen, args->valuelen); forkoff = xfs_attr_shortform_bytesfit(args->dp, newsize); if (!forkoff) diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index b0c8626e166ac..00955484175b1 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -684,9 +684,9 @@ xfs_attr_sf_findname( sf = (struct xfs_attr_shortform *)args->dp->i_afp->if_u1.if_data; sfe = &sf->list[0]; end = sf->hdr.count; - for (i = 0; i < end; sfe = XFS_ATTR_SF_NEXTENTRY(sfe), + for (i = 0; i < end; sfe = xfs_attr_sf_nextentry(sfe), base += size, i++) { - size = XFS_ATTR_SF_ENTSIZE(sfe); + size = xfs_attr_sf_entsize(sfe); if (!xfs_attr_match(args, sfe->namelen, sfe->nameval, sfe->flags)) continue; @@ -733,7 +733,7 @@ xfs_attr_shortform_add( ASSERT(0); offset = (char *)sfe - (char *)sf; - size = XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen); + size = xfs_attr_sf_entsize_byname(args->namelen, args->valuelen); xfs_idata_realloc(dp, size, XFS_ATTR_FORK); sf = (struct xfs_attr_shortform *)ifp->if_u1.if_data; sfe = (struct xfs_attr_sf_entry *)((char *)sf + offset); @@ -792,7 +792,7 @@ xfs_attr_shortform_remove( error = xfs_attr_sf_findname(args, &sfe, &base); if (error != -EEXIST) return error; - size = XFS_ATTR_SF_ENTSIZE(sfe); + size = xfs_attr_sf_entsize(sfe); /* * Fix up the attribute fork data, covering the hole @@ -849,7 +849,7 @@ xfs_attr_shortform_lookup(xfs_da_args_t *args) sf = (struct xfs_attr_shortform *)ifp->if_u1.if_data; sfe = &sf->list[0]; for (i = 0; i < sf->hdr.count; - sfe = XFS_ATTR_SF_NEXTENTRY(sfe), i++) { + sfe = xfs_attr_sf_nextentry(sfe), i++) { if (xfs_attr_match(args, sfe->namelen, sfe->nameval, sfe->flags)) return -EEXIST; @@ -876,7 +876,7 @@ xfs_attr_shortform_getvalue( sf = (struct xfs_attr_shortform *)args->dp->i_afp->if_u1.if_data; sfe = &sf->list[0]; for (i = 0; i < sf->hdr.count; - sfe = XFS_ATTR_SF_NEXTENTRY(sfe), i++) { + sfe = xfs_attr_sf_nextentry(sfe), i++) { if (xfs_attr_match(args, sfe->namelen, sfe->nameval, sfe->flags)) return xfs_attr_copy_value(args, @@ -951,7 +951,7 @@ xfs_attr_shortform_to_leaf( ASSERT(error != -ENOSPC); if (error) goto out; - sfe = XFS_ATTR_SF_NEXTENTRY(sfe); + sfe = xfs_attr_sf_nextentry(sfe); } error = 0; *leaf_bp = bp; @@ -992,7 +992,7 @@ xfs_attr_shortform_allfit( return 0; if (be16_to_cpu(name_loc->valuelen) >= XFS_ATTR_SF_ENTSIZE_MAX) return 0; - bytes += XFS_ATTR_SF_ENTSIZE_BYNAME(name_loc->namelen, + bytes += xfs_attr_sf_entsize_byname(name_loc->namelen, be16_to_cpu(name_loc->valuelen)); } if ((dp->i_mount->m_flags & XFS_MOUNT_ATTR2) && @@ -1048,7 +1048,7 @@ xfs_attr_shortform_verify( * within the data buffer. The next entry starts after the * name component, so nextentry is an acceptable test. */ - next_sfep = XFS_ATTR_SF_NEXTENTRY(sfep); + next_sfep = xfs_attr_sf_nextentry(sfep); if ((char *)next_sfep > endp) return __this_address; diff --git a/fs/xfs/libxfs/xfs_attr_sf.h b/fs/xfs/libxfs/xfs_attr_sf.h index 29934103ce559..37578b369d9b9 100644 --- a/fs/xfs/libxfs/xfs_attr_sf.h +++ b/fs/xfs/libxfs/xfs_attr_sf.h @@ -26,18 +26,26 @@ typedef struct xfs_attr_sf_sort { unsigned char *name; /* name value, pointer into buffer */ } xfs_attr_sf_sort_t; -#define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen) /* space name/value uses */ \ - ((sizeof(struct xfs_attr_sf_entry) + (nlen) + (vlen))) #define XFS_ATTR_SF_ENTSIZE_MAX /* max space for name&value */ \ ((1 << (NBBY*(int)sizeof(uint8_t))) - 1) -#define XFS_ATTR_SF_ENTSIZE(sfep) /* space an entry uses */ \ - ((int)sizeof(struct xfs_attr_sf_entry) + \ - (sfep)->namelen+(sfep)->valuelen) -#define XFS_ATTR_SF_NEXTENTRY(sfep) /* next entry in struct */ \ - ((struct xfs_attr_sf_entry *)((char *)(sfep) + \ - XFS_ATTR_SF_ENTSIZE(sfep))) -#define XFS_ATTR_SF_TOTSIZE(dp) /* total space in use */ \ - (be16_to_cpu(((struct xfs_attr_shortform *) \ - ((dp)->i_afp->if_u1.if_data))->hdr.totsize)) + +/* space name/value uses */ +static inline int xfs_attr_sf_entsize_byname(uint8_t nlen, uint8_t vlen) +{ + return sizeof(struct xfs_attr_sf_entry) + nlen + vlen; +} + +/* space an entry uses */ +static inline int xfs_attr_sf_entsize(struct xfs_attr_sf_entry *sfep) +{ + return struct_size(sfep, nameval, sfep->namelen + sfep->valuelen); +} + +/* next entry in struct */ +static inline struct xfs_attr_sf_entry * +xfs_attr_sf_nextentry(struct xfs_attr_sf_entry *sfep) +{ + return (void *)sfep + xfs_attr_sf_entsize(sfep); +} #endif /* __XFS_ATTR_SF_H__ */ diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c index 4eb1d6faecfb2..8f8837fe21cf0 100644 --- a/fs/xfs/xfs_attr_list.c +++ b/fs/xfs/xfs_attr_list.c @@ -96,7 +96,7 @@ xfs_attr_shortform_list( */ if (context->seen_enough) break; - sfe = XFS_ATTR_SF_NEXTENTRY(sfe); + sfe = xfs_attr_sf_nextentry(sfe); } trace_xfs_attr_list_sf_all(context); return 0; @@ -136,7 +136,7 @@ xfs_attr_shortform_list( /* These are bytes, and both on-disk, don't endian-flip */ sbp->valuelen = sfe->valuelen; sbp->flags = sfe->flags; - sfe = XFS_ATTR_SF_NEXTENTRY(sfe); + sfe = xfs_attr_sf_nextentry(sfe); sbp++; nsbuf++; }