From patchwork Wed Sep 2 14:40:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Carlos Maiolino X-Patchwork-Id: 11750775 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 BD40514E3 for ; Wed, 2 Sep 2020 14:41:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A3FB320829 for ; Wed, 2 Sep 2020 14:41:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="elUm3BpK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728090AbgIBOli (ORCPT ); Wed, 2 Sep 2020 10:41:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:29315 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727950AbgIBOlQ (ORCPT ); Wed, 2 Sep 2020 10:41:16 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599057674; 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=6QNwRvK5pgWGgJFrr5ZAqV44QeRpPnhcvXVujp8AW1M=; b=elUm3BpKY5Zh4AnBR/LMYotrRlT+EM+BXTDESm3mOh15M3W8mb/dzQmLtebW87BZfPxABU Ct2lukmQfLheDAoA08x8Ko8PD3l2hunzulaOBHh4sn1h9wggvGbv0kI7TZbZp7dlbogmp1 6LwC/zF3xhC2YZ46KzMKKKEL4wc2pJs= 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-488-vNl_J4tGOX-FwkuhQyXQKQ-1; Wed, 02 Sep 2020 10:41:12 -0400 X-MC-Unique: vNl_J4tGOX-FwkuhQyXQKQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A04AF10082EB for ; Wed, 2 Sep 2020 14:41:11 +0000 (UTC) Received: from eorzea.redhat.com (unknown [10.40.195.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0597F7EEBB for ; Wed, 2 Sep 2020 14:41:10 +0000 (UTC) From: Carlos Maiolino To: linux-xfs@vger.kernel.org Subject: [PATCH V2 1/4] xfs: remove typedef xfs_attr_sf_entry_t Date: Wed, 2 Sep 2020 16:40:56 +0200 Message-Id: <20200902144059.284726-2-cmaiolino@redhat.com> In-Reply-To: <20200902144059.284726-1-cmaiolino@redhat.com> References: <20200902144059.284726-1-cmaiolino@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Signed-off-by: Carlos Maiolino Reviewed-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- Changelog: V2: - Reordered within the series, no functional changes fs/xfs/libxfs/xfs_attr_leaf.c | 4 ++-- fs/xfs/libxfs/xfs_attr_sf.h | 11 ++++++----- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index 305d4bc073370..76d3814f9dc79 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -736,7 +736,7 @@ xfs_attr_shortform_add( size = XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen); xfs_idata_realloc(dp, size, XFS_ATTR_FORK); sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; - sfe = (xfs_attr_sf_entry_t *)((char *)sf + offset); + sfe = (struct xfs_attr_sf_entry *)((char *)sf + offset); sfe->namelen = args->namelen; sfe->valuelen = args->valuelen; @@ -838,7 +838,7 @@ int xfs_attr_shortform_lookup(xfs_da_args_t *args) { xfs_attr_shortform_t *sf; - xfs_attr_sf_entry_t *sfe; + struct xfs_attr_sf_entry *sfe; int i; struct xfs_ifork *ifp; diff --git a/fs/xfs/libxfs/xfs_attr_sf.h b/fs/xfs/libxfs/xfs_attr_sf.h index bb004fb7944a7..c4afb33079184 100644 --- a/fs/xfs/libxfs/xfs_attr_sf.h +++ b/fs/xfs/libxfs/xfs_attr_sf.h @@ -13,7 +13,6 @@ * to fit into the literal area of the inode. */ typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t; -typedef struct xfs_attr_sf_entry xfs_attr_sf_entry_t; /* * We generate this then sort it, attr_list() must return things in hash-order. @@ -28,15 +27,17 @@ typedef struct xfs_attr_sf_sort { } xfs_attr_sf_sort_t; #define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen) /* space name/value uses */ \ - (((int)sizeof(xfs_attr_sf_entry_t)-1 + (nlen)+(vlen))) + (((int)sizeof(struct xfs_attr_sf_entry)-1 + (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(xfs_attr_sf_entry_t)-1 + (sfep)->namelen+(sfep)->valuelen) + ((int)sizeof(struct xfs_attr_sf_entry)-1 + \ + (sfep)->namelen+(sfep)->valuelen) #define XFS_ATTR_SF_NEXTENTRY(sfep) /* next entry in struct */ \ - ((xfs_attr_sf_entry_t *)((char *)(sfep) + XFS_ATTR_SF_ENTSIZE(sfep))) + ((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(((xfs_attr_shortform_t *) \ + (be16_to_cpu(((struct xfs_attr_shortform *) \ ((dp)->i_afp->if_u1.if_data))->hdr.totsize)) #endif /* __XFS_ATTR_SF_H__ */ From patchwork Wed Sep 2 14:40:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Carlos Maiolino X-Patchwork-Id: 11750783 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 1664A722 for ; Wed, 2 Sep 2020 14:43:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F242E20767 for ; Wed, 2 Sep 2020 14:43:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="QTVsBiL3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727025AbgIBOmy (ORCPT ); Wed, 2 Sep 2020 10:42:54 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:43009 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728029AbgIBOlb (ORCPT ); Wed, 2 Sep 2020 10:41:31 -0400 DKIM-Signature: v=1; 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Wed, 2 Sep 2020 14:41:14 +0000 (UTC) Received: from eorzea.redhat.com (unknown [10.40.195.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8655F7EEB2 for ; Wed, 2 Sep 2020 14:41:13 +0000 (UTC) From: Carlos Maiolino To: linux-xfs@vger.kernel.org Subject: [PATCH V2 2/4] xfs: Remove typedef xfs_attr_shortform_t Date: Wed, 2 Sep 2020 16:40:57 +0200 Message-Id: <20200902144059.284726-3-cmaiolino@redhat.com> In-Reply-To: <20200902144059.284726-1-cmaiolino@redhat.com> References: <20200902144059.284726-1-cmaiolino@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Signed-off-by: Carlos Maiolino Reviewed-by: Christoph Hellwig --- Changelog: V2: - Reordered within the series, no functional changes. fs/xfs/libxfs/xfs_attr_leaf.c | 16 ++++++++-------- fs/xfs/libxfs/xfs_da_format.h | 4 ++-- fs/xfs/xfs_attr_list.c | 2 +- fs/xfs/xfs_ondisk.h | 12 ++++++------ 4 files changed, 17 insertions(+), 17 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index 76d3814f9dc79..d920183b08a99 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -728,14 +728,14 @@ xfs_attr_shortform_add( ifp = dp->i_afp; ASSERT(ifp->if_flags & XFS_IFINLINE); - sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; + sf = (struct xfs_attr_shortform *)ifp->if_u1.if_data; if (xfs_attr_sf_findname(args, &sfe, NULL) == -EEXIST) ASSERT(0); offset = (char *)sfe - (char *)sf; size = XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen); xfs_idata_realloc(dp, size, XFS_ATTR_FORK); - sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; + sf = (struct xfs_attr_shortform *)ifp->if_u1.if_data; sfe = (struct xfs_attr_sf_entry *)((char *)sf + offset); sfe->namelen = args->namelen; @@ -787,7 +787,7 @@ xfs_attr_shortform_remove( dp = args->dp; mp = dp->i_mount; - sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data; + sf = (struct xfs_attr_shortform *)dp->i_afp->if_u1.if_data; error = xfs_attr_sf_findname(args, &sfe, &base); if (error != -EEXIST) @@ -837,7 +837,7 @@ xfs_attr_shortform_remove( int xfs_attr_shortform_lookup(xfs_da_args_t *args) { - xfs_attr_shortform_t *sf; + struct xfs_attr_shortform *sf; struct xfs_attr_sf_entry *sfe; int i; struct xfs_ifork *ifp; @@ -846,7 +846,7 @@ xfs_attr_shortform_lookup(xfs_da_args_t *args) ifp = args->dp->i_afp; ASSERT(ifp->if_flags & XFS_IFINLINE); - sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; + 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++) { @@ -873,7 +873,7 @@ xfs_attr_shortform_getvalue( int i; ASSERT(args->dp->i_afp->if_flags == XFS_IFINLINE); - sf = (xfs_attr_shortform_t *)args->dp->i_afp->if_u1.if_data; + 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++) { @@ -908,12 +908,12 @@ xfs_attr_shortform_to_leaf( dp = args->dp; ifp = dp->i_afp; - sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data; + sf = (struct xfs_attr_shortform *)ifp->if_u1.if_data; size = be16_to_cpu(sf->hdr.totsize); tmpbuffer = kmem_alloc(size, 0); ASSERT(tmpbuffer != NULL); memcpy(tmpbuffer, ifp->if_u1.if_data, size); - sf = (xfs_attr_shortform_t *)tmpbuffer; + sf = (struct xfs_attr_shortform *)tmpbuffer; xfs_idata_realloc(dp, -size, XFS_ATTR_FORK); xfs_bmap_local_to_extents_empty(args->trans, dp, XFS_ATTR_FORK); diff --git a/fs/xfs/libxfs/xfs_da_format.h b/fs/xfs/libxfs/xfs_da_format.h index 059ac108b1b39..e708b714bf99d 100644 --- a/fs/xfs/libxfs/xfs_da_format.h +++ b/fs/xfs/libxfs/xfs_da_format.h @@ -579,7 +579,7 @@ xfs_dir2_block_leaf_p(struct xfs_dir2_block_tail *btp) /* * Entries are packed toward the top as tight as possible. */ -typedef struct xfs_attr_shortform { +struct xfs_attr_shortform { struct xfs_attr_sf_hdr { /* constant-structure header block */ __be16 totsize; /* total bytes in shortform list */ __u8 count; /* count of active entries */ @@ -591,7 +591,7 @@ typedef struct xfs_attr_shortform { uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */ uint8_t nameval[1]; /* name & value bytes concatenated */ } list[1]; /* variable sized array */ -} xfs_attr_shortform_t; +}; typedef struct xfs_attr_leaf_map { /* RLE map of free bytes */ __be16 base; /* base of free region */ diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c index 50f922cad91a4..4eb1d6faecfb2 100644 --- a/fs/xfs/xfs_attr_list.c +++ b/fs/xfs/xfs_attr_list.c @@ -61,7 +61,7 @@ xfs_attr_shortform_list( int error = 0; ASSERT(dp->i_afp != NULL); - sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data; + sf = (struct xfs_attr_shortform *)dp->i_afp->if_u1.if_data; ASSERT(sf != NULL); if (!sf->hdr.count) return 0; diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h index 5f04d8a5ab2a9..ad51c8eb447b1 100644 --- a/fs/xfs/xfs_ondisk.h +++ b/fs/xfs/xfs_ondisk.h @@ -84,12 +84,12 @@ xfs_check_ondisk_structs(void) XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, namelen, 8); XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, name, 9); XFS_CHECK_STRUCT_SIZE(xfs_attr_leafblock_t, 40); - XFS_CHECK_OFFSET(xfs_attr_shortform_t, hdr.totsize, 0); - XFS_CHECK_OFFSET(xfs_attr_shortform_t, hdr.count, 2); - XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].namelen, 4); - XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].valuelen, 5); - XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].flags, 6); - XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].nameval, 7); + XFS_CHECK_OFFSET(struct xfs_attr_shortform, hdr.totsize, 0); + XFS_CHECK_OFFSET(struct xfs_attr_shortform, hdr.count, 2); + XFS_CHECK_OFFSET(struct xfs_attr_shortform, list[0].namelen, 4); + XFS_CHECK_OFFSET(struct xfs_attr_shortform, list[0].valuelen, 5); + XFS_CHECK_OFFSET(struct xfs_attr_shortform, list[0].flags, 6); + XFS_CHECK_OFFSET(struct xfs_attr_shortform, list[0].nameval, 7); XFS_CHECK_STRUCT_SIZE(xfs_da_blkinfo_t, 12); XFS_CHECK_STRUCT_SIZE(xfs_da_intnode_t, 16); XFS_CHECK_STRUCT_SIZE(xfs_da_node_entry_t, 8); From patchwork Wed Sep 2 14:40:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Carlos Maiolino X-Patchwork-Id: 11750781 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 C5FF9722 for ; 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b=EhNExIij1olEfntaK/z5CDRtE2stCa+Y/Wd0PR2vSjCx5Ob337ZAQ3+jWQCn86SIdE5nCR e9FcHIR+Ss+PJ8m9ycKmwe4fYnFqBWlrNBZMl5/1ec06G+l0VTKu/+0dgE14S6uyCEIwmX bFxVmc7T3pQqgECJ84gzAjU4GWomX0A= 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-495-zwQ-fD1wMRyGf7JPMx6GIg-1; Wed, 02 Sep 2020 10:41:18 -0400 X-MC-Unique: zwQ-fD1wMRyGf7JPMx6GIg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 45AB257038 for ; Wed, 2 Sep 2020 14:41:17 +0000 (UTC) Received: from eorzea.redhat.com (unknown [10.40.195.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9E59F7EB8D for ; Wed, 2 Sep 2020 14:41:16 +0000 (UTC) From: Carlos Maiolino To: linux-xfs@vger.kernel.org Subject: [PATCH V2 3/4] xfs: Use variable-size array for nameval in xfs_attr_sf_entry Date: Wed, 2 Sep 2020 16:40:58 +0200 Message-Id: <20200902144059.284726-4-cmaiolino@redhat.com> In-Reply-To: <20200902144059.284726-1-cmaiolino@redhat.com> References: <20200902144059.284726-1-cmaiolino@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org nameval is a variable-size array, so, define it as it, and remove all the -1 magic number subtractions Signed-off-by: Carlos Maiolino Reviewed-by: Christoph Hellwig --- Changelog: V2: - Drop wrong change to XFS_ATTR_SF_ENTSIZE_MAX fs/xfs/libxfs/xfs_attr_leaf.c | 6 ++---- fs/xfs/libxfs/xfs_attr_sf.h | 4 ++-- fs/xfs/libxfs/xfs_da_format.h | 2 +- 3 files changed, 5 insertions(+), 7 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index d920183b08a99..89193871e6a7f 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -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 += sizeof(struct xfs_attr_sf_entry) - 1 + bytes += sizeof(struct xfs_attr_sf_entry) + name_loc->namelen + be16_to_cpu(name_loc->valuelen); } @@ -1036,10 +1036,8 @@ xfs_attr_shortform_verify( * struct xfs_attr_sf_entry has a variable length. * Check the fixed-offset parts of the structure are * within the data buffer. - * xfs_attr_sf_entry is defined with a 1-byte variable - * array at the end, so we must subtract that off. */ - if (((char *)sfep + sizeof(*sfep) - 1) >= endp) + if (((char *)sfep + sizeof(*sfep)) >= endp) return __this_address; /* Don't allow names with known bad length. */ diff --git a/fs/xfs/libxfs/xfs_attr_sf.h b/fs/xfs/libxfs/xfs_attr_sf.h index c4afb33079184..f608a2966d7f8 100644 --- a/fs/xfs/libxfs/xfs_attr_sf.h +++ b/fs/xfs/libxfs/xfs_attr_sf.h @@ -27,11 +27,11 @@ typedef struct xfs_attr_sf_sort { } xfs_attr_sf_sort_t; #define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen) /* space name/value uses */ \ - (((int)sizeof(struct xfs_attr_sf_entry)-1 + (nlen)+(vlen))) + (((int)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)-1 + \ + ((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) + \ diff --git a/fs/xfs/libxfs/xfs_da_format.h b/fs/xfs/libxfs/xfs_da_format.h index e708b714bf99d..b40a4e80f5ee6 100644 --- a/fs/xfs/libxfs/xfs_da_format.h +++ b/fs/xfs/libxfs/xfs_da_format.h @@ -589,7 +589,7 @@ struct xfs_attr_shortform { uint8_t namelen; /* actual length of name (no NULL) */ uint8_t valuelen; /* actual length of value (no NULL) */ uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */ - uint8_t nameval[1]; /* name & value bytes concatenated */ + uint8_t nameval[]; /* name & value bytes concatenated */ } list[1]; /* variable sized array */ }; From patchwork Wed Sep 2 14:40:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Carlos Maiolino X-Patchwork-Id: 11750779 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 3FE3E14E3 for ; Wed, 2 Sep 2020 14:43:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 22ADC207D3 for ; Wed, 2 Sep 2020 14:43:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Kj7J2SZD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726298AbgIBOmn (ORCPT ); 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Wed, 2 Sep 2020 14:41:19 +0000 (UTC) Received: from eorzea.redhat.com (unknown [10.40.195.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8B49E7EEAC for ; Wed, 2 Sep 2020 14:41:18 +0000 (UTC) From: Carlos Maiolino To: linux-xfs@vger.kernel.org Subject: [PATCH V2 4/4] xfs: Convert xfs_attr_sf macros to inline functions Date: Wed, 2 Sep 2020 16:40:59 +0200 Message-Id: <20200902144059.284726-5-cmaiolino@redhat.com> In-Reply-To: <20200902144059.284726-1-cmaiolino@redhat.com> References: <20200902144059.284726-1-cmaiolino@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 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 --- V2: - keep macro comments above inline functions - Use struct_size() on xfs_attr_sf_entsize() fs/xfs/libxfs/xfs_attr.c | 13 ++++++++++--- fs/xfs/libxfs/xfs_attr_leaf.c | 16 ++++++++-------- fs/xfs/libxfs/xfs_attr_sf.h | 28 +++++++++++++++++----------- fs/xfs/xfs_attr_list.c | 4 ++-- 4 files changed, 37 insertions(+), 24 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 2e055c079f397..ff1fa2ed40ab9 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 +523,13 @@ 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 +562,8 @@ 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 89193871e6a7f..f64ab351b760c 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; @@ -1049,7 +1049,7 @@ 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 f608a2966d7f8..0d761306da965 100644 --- a/fs/xfs/libxfs/xfs_attr_sf.h +++ b/fs/xfs/libxfs/xfs_attr_sf.h @@ -26,18 +26,24 @@ 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 */ \ - (((int)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 (struct xfs_attr_sf_entry *)((char *)(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++; }