From mboxrd@z Thu Jan 1 00:00:00 1970 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 F0B2365190 for ; Wed, 17 Apr 2024 21:32:44 +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=1713389565; cv=none; b=d/5NpgQePwXJ3RPrE81EZlpOJf1Ldv95qUr186ImTUvTxrEWKyB6M8hJuc+vR3ZfKTpc5WqzeCj43SAUIbv4HL25xe+2ApuVDndeAGci6ZgMaMGaCfnIpUNftagVm7xE7I4kdVQug+sG+dwYEskDpspUf7Hf/VtffJookFXhPwU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713389565; c=relaxed/simple; bh=Xngaf9OChoYYL96OCenFtr9+YTz62DQmPv7bG9oHJVQ=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=RWooHzZLNCcKLpelxvIG/V6rONxcIAazKW6MFx5/SobRypsZvNxnwpAmGQPAANFgjtVfs5jonS2uzYioEcwaKN6ZaEEvrYxMBh3dX4LuxZvaKWby6cYHWJZVhv82k78z8JzCCm4J/SjWVvy59qC2l/UrBMrTpnyU82LmY2LkBdY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PXVLwgE/; 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="PXVLwgE/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79714C072AA; Wed, 17 Apr 2024 21:32:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713389564; bh=Xngaf9OChoYYL96OCenFtr9+YTz62DQmPv7bG9oHJVQ=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=PXVLwgE/FJw0s3HJIZ1tni+Xd8Los7wGALaDX69T0osO4u3UMBU82eV+2nKq7WeZw MfyoNhPhP06oFy1Ty3Vjs0J220dVGCmULg+piaQ+60cNZBR3Bl3EMHv5+TbF2ZVd+u 7LAPZMRBnA+zONQmeStPZUq5NQRqudoiMV7WarL5IymyLS/CxZkcUfLXsJBWsLcBpA Clovw3f1KT+HreviUiuJJPn4aqa0y4x2PW+EwUbYr7Q44jXbQ4rGvXL6XAOcfVPN7K MCozlOVojS8cRwkrHycGA4qSnh+R+0wdqB1wEfjYL/hcNsl+2oItYAYtY9XjNH1sT/ bAdlP0WbbFJKQ== Date: Wed, 17 Apr 2024 14:32:44 -0700 Subject: [PATCH 42/67] xfs: create a new inode fork block unmap helper From: "Darrick J. Wong" To: cem@kernel.org, djwong@kernel.org Cc: Christoph Hellwig , Bill O'Donnell , linux-xfs@vger.kernel.org Message-ID: <171338842970.1853449.10492373904248970387.stgit@frogsfrogsfrogs> In-Reply-To: <171338842269.1853449.4066376212453408283.stgit@frogsfrogsfrogs> References: <171338842269.1853449.4066376212453408283.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 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Darrick J. Wong Source kernel commit: a59eb5fc21b2a6dc160ee6cdf77f20bc186a88fd Create a new helper to unmap blocks from an inode's fork. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig Reviewed-by: Bill O'Donnell --- libxfs/xfs_bmap.c | 41 ++++++++++++++++++++++++++++++++++++++++- libxfs/xfs_bmap.h | 5 ++--- 2 files changed, 42 insertions(+), 4 deletions(-) diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c index 534a516b5..3520235b5 100644 --- a/libxfs/xfs_bmap.c +++ b/libxfs/xfs_bmap.c @@ -5233,7 +5233,7 @@ xfs_bmap_del_extent_real( * that value. If not all extents in the block range can be removed then * *done is set. */ -int /* error */ +static int __xfs_bunmapi( struct xfs_trans *tp, /* transaction pointer */ struct xfs_inode *ip, /* incore inode */ @@ -6214,3 +6214,42 @@ xfs_bmap_validate_extent( return xfs_bmap_validate_extent_raw(ip->i_mount, XFS_IS_REALTIME_INODE(ip), whichfork, irec); } + +/* + * Used in xfs_itruncate_extents(). This is the maximum number of extents + * freed from a file in a single transaction. + */ +#define XFS_ITRUNC_MAX_EXTENTS 2 + +/* + * Unmap every extent in part of an inode's fork. We don't do any higher level + * invalidation work at all. + */ +int +xfs_bunmapi_range( + struct xfs_trans **tpp, + struct xfs_inode *ip, + uint32_t flags, + xfs_fileoff_t startoff, + xfs_fileoff_t endoff) +{ + xfs_filblks_t unmap_len = endoff - startoff + 1; + int error = 0; + + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + + while (unmap_len > 0) { + ASSERT((*tpp)->t_highest_agno == NULLAGNUMBER); + error = __xfs_bunmapi(*tpp, ip, startoff, &unmap_len, flags, + XFS_ITRUNC_MAX_EXTENTS); + if (error) + goto out; + + /* free the just unmapped extents */ + error = xfs_defer_finish(tpp); + if (error) + goto out; + } +out: + return error; +} diff --git a/libxfs/xfs_bmap.h b/libxfs/xfs_bmap.h index 8518324db..4b83f6148 100644 --- a/libxfs/xfs_bmap.h +++ b/libxfs/xfs_bmap.h @@ -190,9 +190,6 @@ int xfs_bmapi_read(struct xfs_inode *ip, xfs_fileoff_t bno, int xfs_bmapi_write(struct xfs_trans *tp, struct xfs_inode *ip, xfs_fileoff_t bno, xfs_filblks_t len, uint32_t flags, xfs_extlen_t total, struct xfs_bmbt_irec *mval, int *nmap); -int __xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip, - xfs_fileoff_t bno, xfs_filblks_t *rlen, uint32_t flags, - xfs_extnum_t nexts); int xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip, xfs_fileoff_t bno, xfs_filblks_t len, uint32_t flags, xfs_extnum_t nexts, int *done); @@ -273,6 +270,8 @@ int xfs_bmap_complain_bad_rec(struct xfs_inode *ip, int whichfork, int xfs_bmapi_remap(struct xfs_trans *tp, struct xfs_inode *ip, xfs_fileoff_t bno, xfs_filblks_t len, xfs_fsblock_t startblock, uint32_t flags); +int xfs_bunmapi_range(struct xfs_trans **tpp, struct xfs_inode *ip, + uint32_t flags, xfs_fileoff_t startoff, xfs_fileoff_t endoff); extern struct kmem_cache *xfs_bmap_intent_cache;