From patchwork Wed May 22 02:49:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13670213 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D44B66F067 for ; Wed, 22 May 2024 02:49:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716346157; cv=none; b=K+2hbYvieP+9iIAXN/3lAVSiTFanruLf0p/8QLkSCTW162uBLnx7CTOKX6W3RZrTaTsfERtvdS74lbJJSav/LI0h7iWHbrgTGET7HwgDMEsI+JJjysZ6ZdgthNymza+rnnzivvZdhWhgQXTdh1slS0pcPWKnwc8M2W9/PZIsIo4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716346157; c=relaxed/simple; bh=dTLgtR5Niapk21b+2Oi2tk4bSVq6FmfFcgoDA8lsbqA=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Gu3R5t7aGxyBnSIL10Aw101J3UIaBNkAmpVG3h6f7Gixi7Du9NOpTwehcGJer5EIAqdHdKG5wfS2RAVHSPQ2CYkLQuxNG6oagIiV5e67MGAAZGdKP8sZU1MCmgGmSJnla1XceW8MNCIW4+czIEMo6YOw0fVibUQU2cx9V1X3kEc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vt44LkMk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Vt44LkMk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B01B6C2BD11; Wed, 22 May 2024 02:49:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716346157; bh=dTLgtR5Niapk21b+2Oi2tk4bSVq6FmfFcgoDA8lsbqA=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=Vt44LkMkYpCFMkZyFJWAEqSY0sqP70rQpZw6XVC1tSpeYfc+1JUryxQ667uWTcQAW BGgrRI7AFYqhzVYI2ro0OdfYjokZ/GU7Zd1WXDicJk3V4gHztW7IBnZcN2nYUsAC1W m6ORHGi5EuzQeiOaz/OVYPQ34uxpnnZF5XJs66ynGfuaQNLce7qrgMKer++UcWV8Ie N86vMF03G82FAjRzP2DcJSK7talPZ7CzFKja10fnB/rlVtm0b0tsRj8GwrzA+mOYcN t+unyRrb75PS35Uf1DzqBxYYgR+vvgpa3cr13Xv6cwCNWsvbphZvDV37SmNTE2YOMz kT9/tHgcRfvuA== Date: Tue, 21 May 2024 19:49:17 -0700 Subject: [PATCH 002/111] xfs: convert kmem_alloc() to kmalloc() From: "Darrick J. Wong" To: djwong@kernel.org, cem@kernel.org Cc: Dave Chinner , Chandan Babu R , linux-xfs@vger.kernel.org Message-ID: <171634531740.2478931.3728228134866763111.stgit@frogsfrogsfrogs> In-Reply-To: <171634531590.2478931.8474978645585392776.stgit@frogsfrogsfrogs> References: <171634531590.2478931.8474978645585392776.stgit@frogsfrogsfrogs> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Dave Chinner Source kernel commit: f078d4ea827607867d42fb3b2ef907caf86ce49d kmem_alloc() is just a thin wrapper around kmalloc() these days. Convert everything to use kmalloc() so we can get rid of the wrapper. Note: the transaction region allocation in xlog_add_to_transaction() can be a high order allocation. Converting it to use kmalloc(__GFP_NOFAIL) results in warnings in the page allocation code being triggered because the mm subsystem does not want us to use __GFP_NOFAIL with high order allocations like we've been doing with the kmem_alloc() wrapper for a couple of decades. Hence this specific case gets converted to xlog_kvmalloc() rather than kmalloc() to avoid this issue. Signed-off-by: Dave Chinner Reviewed-by: "Darrick J. Wong" Signed-off-by: Chandan Babu R --- libxfs/xfs_attr_leaf.c | 7 +++---- libxfs/xfs_btree_staging.c | 4 ++-- libxfs/xfs_da_btree.c | 3 ++- libxfs/xfs_dir2.c | 2 +- libxfs/xfs_dir2_block.c | 2 +- libxfs/xfs_dir2_sf.c | 8 ++++---- libxfs/xfs_inode_fork.c | 15 ++++++++------- 7 files changed, 21 insertions(+), 20 deletions(-) diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c index 8a0a7c219..0d7dc789c 100644 --- a/libxfs/xfs_attr_leaf.c +++ b/libxfs/xfs_attr_leaf.c @@ -876,8 +876,7 @@ xfs_attr_shortform_to_leaf( trace_xfs_attr_sf_to_leaf(args); - tmpbuffer = kmem_alloc(size, 0); - ASSERT(tmpbuffer != NULL); + tmpbuffer = kmalloc(size, GFP_KERNEL | __GFP_NOFAIL); memcpy(tmpbuffer, ifp->if_data, size); sf = (struct xfs_attr_sf_hdr *)tmpbuffer; @@ -1056,7 +1055,7 @@ xfs_attr3_leaf_to_shortform( trace_xfs_attr_leaf_to_sf(args); - tmpbuffer = kmem_alloc(args->geo->blksize, 0); + tmpbuffer = kmalloc(args->geo->blksize, GFP_KERNEL | __GFP_NOFAIL); if (!tmpbuffer) return -ENOMEM; @@ -1530,7 +1529,7 @@ xfs_attr3_leaf_compact( trace_xfs_attr_leaf_compact(args); - tmpbuffer = kmem_alloc(args->geo->blksize, 0); + tmpbuffer = kmalloc(args->geo->blksize, GFP_KERNEL | __GFP_NOFAIL); memcpy(tmpbuffer, bp->b_addr, args->geo->blksize); memset(bp->b_addr, 0, args->geo->blksize); leaf_src = (xfs_attr_leafblock_t *)tmpbuffer; diff --git a/libxfs/xfs_btree_staging.c b/libxfs/xfs_btree_staging.c index 45b793559..da6e9fa8e 100644 --- a/libxfs/xfs_btree_staging.c +++ b/libxfs/xfs_btree_staging.c @@ -139,7 +139,7 @@ xfs_btree_stage_afakeroot( ASSERT(!(cur->bc_flags & XFS_BTREE_ROOT_IN_INODE)); ASSERT(cur->bc_tp == NULL); - nops = kmem_alloc(sizeof(struct xfs_btree_ops), KM_NOFS); + nops = kmalloc(sizeof(struct xfs_btree_ops), GFP_NOFS | __GFP_NOFAIL); memcpy(nops, cur->bc_ops, sizeof(struct xfs_btree_ops)); nops->alloc_block = xfs_btree_fakeroot_alloc_block; nops->free_block = xfs_btree_fakeroot_free_block; @@ -220,7 +220,7 @@ xfs_btree_stage_ifakeroot( ASSERT(cur->bc_flags & XFS_BTREE_ROOT_IN_INODE); ASSERT(cur->bc_tp == NULL); - nops = kmem_alloc(sizeof(struct xfs_btree_ops), KM_NOFS); + nops = kmalloc(sizeof(struct xfs_btree_ops), GFP_NOFS | __GFP_NOFAIL); memcpy(nops, cur->bc_ops, sizeof(struct xfs_btree_ops)); nops->alloc_block = xfs_btree_fakeroot_alloc_block; nops->free_block = xfs_btree_fakeroot_free_block; diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index 0864cb5ed..33ac8d13c 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -2178,7 +2178,8 @@ xfs_da_grow_inode_int( * If we didn't get it and the block might work if fragmented, * try without the CONTIG flag. Loop until we get it all. */ - mapp = kmem_alloc(sizeof(*mapp) * count, 0); + mapp = kmalloc(sizeof(*mapp) * count, + GFP_KERNEL | __GFP_NOFAIL); for (b = *bno, mapi = 0; b < *bno + count; ) { c = (int)(*bno + count - b); nmap = min(XFS_BMAP_MAX_NMAP, c); diff --git a/libxfs/xfs_dir2.c b/libxfs/xfs_dir2.c index cb299a6ed..52f0461ef 100644 --- a/libxfs/xfs_dir2.c +++ b/libxfs/xfs_dir2.c @@ -332,7 +332,7 @@ xfs_dir_cilookup_result( !(args->op_flags & XFS_DA_OP_CILOOKUP)) return -EEXIST; - args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); + args->value = kmalloc(len, GFP_NOFS | __GFP_RETRY_MAYFAIL); if (!args->value) return -ENOMEM; diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c index bf950c700..b694e6219 100644 --- a/libxfs/xfs_dir2_block.c +++ b/libxfs/xfs_dir2_block.c @@ -1105,7 +1105,7 @@ xfs_dir2_sf_to_block( * Copy the directory into a temporary buffer. * Then pitch the incore inode data so we can make extents. */ - sfp = kmem_alloc(ifp->if_bytes, 0); + sfp = kmalloc(ifp->if_bytes, GFP_KERNEL | __GFP_NOFAIL); memcpy(sfp, oldsfp, ifp->if_bytes); xfs_idata_realloc(dp, -ifp->if_bytes, XFS_DATA_FORK); diff --git a/libxfs/xfs_dir2_sf.c b/libxfs/xfs_dir2_sf.c index 37c7e1d5c..9e0c15f99 100644 --- a/libxfs/xfs_dir2_sf.c +++ b/libxfs/xfs_dir2_sf.c @@ -276,7 +276,7 @@ xfs_dir2_block_to_sf( * format the data into. Once we have formatted the data, we can free * the block and copy the formatted data into the inode literal area. */ - sfp = kmem_alloc(mp->m_sb.sb_inodesize, 0); + sfp = kmalloc(mp->m_sb.sb_inodesize, GFP_KERNEL | __GFP_NOFAIL); memcpy(sfp, sfhp, xfs_dir2_sf_hdr_size(sfhp->i8count)); /* @@ -524,7 +524,7 @@ xfs_dir2_sf_addname_hard( * Copy the old directory to the stack buffer. */ old_isize = (int)dp->i_disk_size; - buf = kmem_alloc(old_isize, 0); + buf = kmalloc(old_isize, GFP_KERNEL | __GFP_NOFAIL); oldsfp = (xfs_dir2_sf_hdr_t *)buf; memcpy(oldsfp, dp->i_df.if_data, old_isize); /* @@ -1151,7 +1151,7 @@ xfs_dir2_sf_toino4( * Don't want xfs_idata_realloc copying the data here. */ oldsize = dp->i_df.if_bytes; - buf = kmem_alloc(oldsize, 0); + buf = kmalloc(oldsize, GFP_KERNEL | __GFP_NOFAIL); ASSERT(oldsfp->i8count == 1); memcpy(buf, oldsfp, oldsize); /* @@ -1223,7 +1223,7 @@ xfs_dir2_sf_toino8( * Don't want xfs_idata_realloc copying the data here. */ oldsize = dp->i_df.if_bytes; - buf = kmem_alloc(oldsize, 0); + buf = kmalloc(oldsize, GFP_KERNEL | __GFP_NOFAIL); ASSERT(oldsfp->i8count == 0); memcpy(buf, oldsfp, oldsize); /* diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c index 208b283ba..7de346e87 100644 --- a/libxfs/xfs_inode_fork.c +++ b/libxfs/xfs_inode_fork.c @@ -48,7 +48,7 @@ xfs_init_local_fork( mem_size++; if (size) { - char *new_data = kmem_alloc(mem_size, KM_NOFS); + char *new_data = kmalloc(mem_size, GFP_NOFS | __GFP_NOFAIL); memcpy(new_data, data, size); if (zero_terminate) @@ -75,7 +75,7 @@ xfs_iformat_local( /* * If the size is unreasonable, then something * is wrong and we just bail out rather than crash in - * kmem_alloc() or memcpy() below. + * kmalloc() or memcpy() below. */ if (unlikely(size > XFS_DFORK_SIZE(dip, ip->i_mount, whichfork))) { xfs_warn(ip->i_mount, @@ -114,7 +114,7 @@ xfs_iformat_extents( /* * If the number of extents is unreasonable, then something is wrong and - * we just bail out rather than crash in kmem_alloc() or memcpy() below. + * we just bail out rather than crash in kmalloc() or memcpy() below. */ if (unlikely(size < 0 || size > XFS_DFORK_SIZE(dip, mp, whichfork))) { xfs_warn(ip->i_mount, "corrupt inode %llu ((a)extents = %llu).", @@ -203,7 +203,7 @@ xfs_iformat_btree( } ifp->if_broot_bytes = size; - ifp->if_broot = kmem_alloc(size, KM_NOFS); + ifp->if_broot = kmalloc(size, GFP_NOFS | __GFP_NOFAIL); ASSERT(ifp->if_broot != NULL); /* * Copy and convert from the on-disk structure @@ -397,7 +397,8 @@ xfs_iroot_realloc( */ if (ifp->if_broot_bytes == 0) { new_size = XFS_BMAP_BROOT_SPACE_CALC(mp, rec_diff); - ifp->if_broot = kmem_alloc(new_size, KM_NOFS); + ifp->if_broot = kmalloc(new_size, + GFP_NOFS | __GFP_NOFAIL); ifp->if_broot_bytes = (int)new_size; return; } @@ -438,7 +439,7 @@ xfs_iroot_realloc( else new_size = 0; if (new_size > 0) { - new_broot = kmem_alloc(new_size, KM_NOFS); + new_broot = kmalloc(new_size, GFP_NOFS | __GFP_NOFAIL); /* * First copy over the btree block header. */ @@ -486,7 +487,7 @@ xfs_iroot_realloc( * * If the amount of space needed has decreased below the size of the * inline buffer, then switch to using the inline buffer. Otherwise, - * use kmem_realloc() or kmem_alloc() to adjust the size of the buffer + * use krealloc() or kmalloc() to adjust the size of the buffer * to what is needed. * * ip -- the inode whose if_data area is changing