From patchwork Sun Dec 31 21:32:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13507668 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 C50EDBA22 for ; Sun, 31 Dec 2023 21:32:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AJpxu5zo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93534C433C7; Sun, 31 Dec 2023 21:32:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1704058370; bh=VWV/ycl2EQIXYA6xHLHw/O17AIwhQaauvymfkpF7n/g=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=AJpxu5zob1fTuKOGNDawQvnma96INFy/xBCl3RtQYGAmmN9oeKujTIBa8eRDLfIpz gc1ovG0SuBFxG0fj3yJ5tzjcY4Y6e5PiLllFvvMnG1U+xvyfgGMh+R65xhPc5EV2YF 0VKUcfLex8j13l5nI531CXJijBXArqB5Mi9AE/JkghuKxlD04A+BJWIB2UCs/dyAoH D5qx04uFTAtY/KTdS7r24sTw0oXNnrQ7uWVnsXqoRZKaEPa44JQw9BrFrDhCz7p+Bh 9++3d0kuPoU07LX+adWARDrWLP5/MzLwXYmkdinyZ2LVAIc3J1m/ulJFVOfr+5toBW Hz2NdkH4KAgdw== Date: Sun, 31 Dec 2023 13:32:50 -0800 Subject: [PATCH 04/39] xfs: define the on-disk realtime rmap btree format From: "Darrick J. Wong" To: djwong@kernel.org Cc: linux-xfs@vger.kernel.org Message-ID: <170404849965.1764998.13102413727560102964.stgit@frogsfrogsfrogs> In-Reply-To: <170404849811.1764998.10873316890301599216.stgit@frogsfrogsfrogs> References: <170404849811.1764998.10873316890301599216.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: Darrick J. Wong Start filling out the rtrmap btree implementation. Start with the on-disk btree format; add everything needed to read, write and manipulate rmap btree blocks. This prepares the way for connecting the btree operations implementation. Signed-off-by: Darrick J. Wong --- fs/xfs/Makefile | 1 fs/xfs/libxfs/xfs_btree.c | 5 + fs/xfs/libxfs/xfs_format.h | 3 fs/xfs/libxfs/xfs_ondisk.h | 1 fs/xfs/libxfs/xfs_rtrmap_btree.c | 307 ++++++++++++++++++++++++++++++++++++++ fs/xfs/libxfs/xfs_rtrmap_btree.h | 83 ++++++++++ fs/xfs/libxfs/xfs_sb.c | 6 + fs/xfs/libxfs/xfs_shared.h | 2 fs/xfs/xfs_mount.c | 5 - fs/xfs/xfs_mount.h | 9 + 10 files changed, 420 insertions(+), 2 deletions(-) create mode 100644 fs/xfs/libxfs/xfs_rtrmap_btree.c create mode 100644 fs/xfs/libxfs/xfs_rtrmap_btree.h diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 6dc9e740f8ce5..50a7929982fdd 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -48,6 +48,7 @@ xfs-y += $(addprefix libxfs/, \ xfs_rmap_btree.o \ xfs_refcount.o \ xfs_refcount_btree.o \ + xfs_rtrmap_btree.o \ xfs_sb.o \ xfs_swapext.o \ xfs_symlink_remote.o \ diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 5b4a2c6a3f2ac..c8a2ce10cccc8 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -32,6 +32,7 @@ #include "scrub/xfbtree.h" #include "xfs_btree_mem.h" #include "xfs_rtgroup.h" +#include "xfs_rtrmap_btree.h" /* * Btree magic numbers. @@ -5528,6 +5529,9 @@ xfs_btree_init_cur_caches(void) if (error) goto err; error = xfs_refcountbt_init_cur_cache(); + if (error) + goto err; + error = xfs_rtrmapbt_init_cur_cache(); if (error) goto err; @@ -5546,6 +5550,7 @@ xfs_btree_destroy_cur_caches(void) xfs_bmbt_destroy_cur_cache(); xfs_rmapbt_destroy_cur_cache(); xfs_refcountbt_destroy_cur_cache(); + xfs_rtrmapbt_destroy_cur_cache(); } /* Move the btree cursor before the first record. */ diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index b47d4f16143a6..5317c6438f070 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -1753,6 +1753,9 @@ typedef __be32 xfs_rmap_ptr_t; */ #define XFS_RTRMAP_CRC_MAGIC 0x4d415052 /* 'MAPR' */ +/* inode-based btree pointer type */ +typedef __be64 xfs_rtrmap_ptr_t; + /* * Reference Count Btree format definitions * diff --git a/fs/xfs/libxfs/xfs_ondisk.h b/fs/xfs/libxfs/xfs_ondisk.h index 70b96efa26973..897a1b72f8d12 100644 --- a/fs/xfs/libxfs/xfs_ondisk.h +++ b/fs/xfs/libxfs/xfs_ondisk.h @@ -77,6 +77,7 @@ xfs_check_ondisk_structs(void) XFS_CHECK_STRUCT_SIZE(union xfs_rtword_raw, 4); XFS_CHECK_STRUCT_SIZE(union xfs_suminfo_raw, 4); XFS_CHECK_STRUCT_SIZE(struct xfs_rtbuf_blkinfo, 48); + XFS_CHECK_STRUCT_SIZE(xfs_rtrmap_ptr_t, 8); /* * m68k has problems with xfs_attr_leaf_name_remote_t, but we pad it to diff --git a/fs/xfs/libxfs/xfs_rtrmap_btree.c b/fs/xfs/libxfs/xfs_rtrmap_btree.c new file mode 100644 index 0000000000000..ecacb457cd27f --- /dev/null +++ b/fs/xfs/libxfs/xfs_rtrmap_btree.c @@ -0,0 +1,307 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2018-2024 Oracle. All Rights Reserved. + * Author: Darrick J. Wong + */ +#include "xfs.h" +#include "xfs_fs.h" +#include "xfs_shared.h" +#include "xfs_format.h" +#include "xfs_log_format.h" +#include "xfs_trans_resv.h" +#include "xfs_bit.h" +#include "xfs_sb.h" +#include "xfs_mount.h" +#include "xfs_defer.h" +#include "xfs_inode.h" +#include "xfs_trans.h" +#include "xfs_alloc.h" +#include "xfs_btree.h" +#include "xfs_btree_staging.h" +#include "xfs_rtrmap_btree.h" +#include "xfs_trace.h" +#include "xfs_cksum.h" +#include "xfs_error.h" +#include "xfs_extent_busy.h" +#include "xfs_rtgroup.h" + +static struct kmem_cache *xfs_rtrmapbt_cur_cache; + +/* + * Realtime Reverse Map btree. + * + * This is a btree used to track the owner(s) of a given extent in the realtime + * device. See the comments in xfs_rmap_btree.c for more information. + * + * This tree is basically the same as the regular rmap btree except that it + * is rooted in an inode and does not live in free space. + */ + +static struct xfs_btree_cur * +xfs_rtrmapbt_dup_cursor( + struct xfs_btree_cur *cur) +{ + struct xfs_btree_cur *new; + + new = xfs_rtrmapbt_init_cursor(cur->bc_mp, cur->bc_tp, cur->bc_ino.rtg, + cur->bc_ino.ip); + + /* Copy the flags values since init cursor doesn't get them. */ + new->bc_ino.flags = cur->bc_ino.flags; + + return new; +} + +static xfs_failaddr_t +xfs_rtrmapbt_verify( + struct xfs_buf *bp) +{ + struct xfs_mount *mp = bp->b_target->bt_mount; + struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp); + xfs_failaddr_t fa; + int level; + + if (!xfs_verify_magic(bp, block->bb_magic)) + return __this_address; + + if (!xfs_has_rmapbt(mp)) + return __this_address; + fa = xfs_btree_lblock_v5hdr_verify(bp, XFS_RMAP_OWN_UNKNOWN); + if (fa) + return fa; + level = be16_to_cpu(block->bb_level); + if (level > mp->m_rtrmap_maxlevels) + return __this_address; + + return xfs_btree_lblock_verify(bp, mp->m_rtrmap_mxr[level != 0]); +} + +static void +xfs_rtrmapbt_read_verify( + struct xfs_buf *bp) +{ + xfs_failaddr_t fa; + + if (!xfs_btree_lblock_verify_crc(bp)) + xfs_verifier_error(bp, -EFSBADCRC, __this_address); + else { + fa = xfs_rtrmapbt_verify(bp); + if (fa) + xfs_verifier_error(bp, -EFSCORRUPTED, fa); + } + + if (bp->b_error) + trace_xfs_btree_corrupt(bp, _RET_IP_); +} + +static void +xfs_rtrmapbt_write_verify( + struct xfs_buf *bp) +{ + xfs_failaddr_t fa; + + fa = xfs_rtrmapbt_verify(bp); + if (fa) { + trace_xfs_btree_corrupt(bp, _RET_IP_); + xfs_verifier_error(bp, -EFSCORRUPTED, fa); + return; + } + xfs_btree_lblock_calc_crc(bp); + +} + +const struct xfs_buf_ops xfs_rtrmapbt_buf_ops = { + .name = "xfs_rtrmapbt", + .magic = { 0, cpu_to_be32(XFS_RTRMAP_CRC_MAGIC) }, + .verify_read = xfs_rtrmapbt_read_verify, + .verify_write = xfs_rtrmapbt_write_verify, + .verify_struct = xfs_rtrmapbt_verify, +}; + +const struct xfs_btree_ops xfs_rtrmapbt_ops = { + .rec_len = sizeof(struct xfs_rmap_rec), + .key_len = 2 * sizeof(struct xfs_rmap_key), + .lru_refs = XFS_RMAP_BTREE_REF, + .geom_flags = XFS_BTREE_LONG_PTRS | XFS_BTREE_ROOT_IN_INODE | + XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING | + XFS_BTREE_IROOT_RECORDS, + + .dup_cursor = xfs_rtrmapbt_dup_cursor, + .buf_ops = &xfs_rtrmapbt_buf_ops, +}; + +/* Initialize a new rt rmap btree cursor. */ +static struct xfs_btree_cur * +xfs_rtrmapbt_init_common( + struct xfs_mount *mp, + struct xfs_trans *tp, + struct xfs_rtgroup *rtg, + struct xfs_inode *ip) +{ + struct xfs_btree_cur *cur; + + ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)); + + cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RTRMAP, + &xfs_rtrmapbt_ops, mp->m_rtrmap_maxlevels, + xfs_rtrmapbt_cur_cache); + cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_rmap_2); + + cur->bc_ino.ip = ip; + cur->bc_ino.allocated = 0; + cur->bc_ino.flags = 0; + + cur->bc_ino.rtg = xfs_rtgroup_hold(rtg); + return cur; +} + +/* Allocate a new rt rmap btree cursor. */ +struct xfs_btree_cur * +xfs_rtrmapbt_init_cursor( + struct xfs_mount *mp, + struct xfs_trans *tp, + struct xfs_rtgroup *rtg, + struct xfs_inode *ip) +{ + struct xfs_btree_cur *cur; + struct xfs_ifork *ifp = xfs_ifork_ptr(ip, XFS_DATA_FORK); + + cur = xfs_rtrmapbt_init_common(mp, tp, rtg, ip); + cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; + cur->bc_ino.forksize = xfs_inode_fork_size(ip, XFS_DATA_FORK); + cur->bc_ino.whichfork = XFS_DATA_FORK; + return cur; +} + +/* Create a new rt reverse mapping btree cursor with a fake root for staging. */ +struct xfs_btree_cur * +xfs_rtrmapbt_stage_cursor( + struct xfs_mount *mp, + struct xfs_rtgroup *rtg, + struct xfs_inode *ip, + struct xbtree_ifakeroot *ifake) +{ + struct xfs_btree_cur *cur; + + cur = xfs_rtrmapbt_init_common(mp, NULL, rtg, ip); + cur->bc_nlevels = ifake->if_levels; + cur->bc_ino.forksize = ifake->if_fork_size; + cur->bc_ino.whichfork = -1; + xfs_btree_stage_ifakeroot(cur, ifake, NULL); + return cur; +} + +/* + * Install a new rt reverse mapping btree root. Caller is responsible for + * invalidating and freeing the old btree blocks. + */ +void +xfs_rtrmapbt_commit_staged_btree( + struct xfs_btree_cur *cur, + struct xfs_trans *tp) +{ + struct xbtree_ifakeroot *ifake = cur->bc_ino.ifake; + struct xfs_ifork *ifp; + int flags = XFS_ILOG_CORE | XFS_ILOG_DBROOT; + + ASSERT(cur->bc_flags & XFS_BTREE_STAGING); + + /* + * Free any resources hanging off the real fork, then shallow-copy the + * staging fork's contents into the real fork to transfer everything + * we just built. + */ + ifp = xfs_ifork_ptr(cur->bc_ino.ip, XFS_DATA_FORK); + xfs_idestroy_fork(ifp); + memcpy(ifp, ifake->if_fork, sizeof(struct xfs_ifork)); + + xfs_trans_log_inode(tp, cur->bc_ino.ip, flags); + xfs_btree_commit_ifakeroot(cur, tp, XFS_DATA_FORK, &xfs_rtrmapbt_ops); +} + +/* Calculate number of records in a rt reverse mapping btree block. */ +static inline unsigned int +xfs_rtrmapbt_block_maxrecs( + unsigned int blocklen, + bool leaf) +{ + if (leaf) + return blocklen / sizeof(struct xfs_rmap_rec); + return blocklen / + (2 * sizeof(struct xfs_rmap_key) + sizeof(xfs_rtrmap_ptr_t)); +} + +/* + * Calculate number of records in an rt reverse mapping btree block. + */ +unsigned int +xfs_rtrmapbt_maxrecs( + struct xfs_mount *mp, + unsigned int blocklen, + bool leaf) +{ + blocklen -= XFS_RTRMAP_BLOCK_LEN; + return xfs_rtrmapbt_block_maxrecs(blocklen, leaf); +} + +/* Compute the max possible height for realtime reverse mapping btrees. */ +unsigned int +xfs_rtrmapbt_maxlevels_ondisk(void) +{ + unsigned int minrecs[2]; + unsigned int blocklen; + + blocklen = XFS_MIN_CRC_BLOCKSIZE - XFS_BTREE_LBLOCK_CRC_LEN; + + minrecs[0] = xfs_rtrmapbt_block_maxrecs(blocklen, true) / 2; + minrecs[1] = xfs_rtrmapbt_block_maxrecs(blocklen, false) / 2; + + /* We need at most one record for every block in an rt group. */ + return xfs_btree_compute_maxlevels(minrecs, XFS_MAX_RGBLOCKS); +} + +int __init +xfs_rtrmapbt_init_cur_cache(void) +{ + xfs_rtrmapbt_cur_cache = kmem_cache_create("xfs_rtrmapbt_cur", + xfs_btree_cur_sizeof(xfs_rtrmapbt_maxlevels_ondisk()), + 0, 0, NULL); + + if (!xfs_rtrmapbt_cur_cache) + return -ENOMEM; + return 0; +} + +void +xfs_rtrmapbt_destroy_cur_cache(void) +{ + kmem_cache_destroy(xfs_rtrmapbt_cur_cache); + xfs_rtrmapbt_cur_cache = NULL; +} + +/* Compute the maximum height of an rt reverse mapping btree. */ +void +xfs_rtrmapbt_compute_maxlevels( + struct xfs_mount *mp) +{ + unsigned int d_maxlevels, r_maxlevels; + + if (!xfs_has_rtrmapbt(mp)) { + mp->m_rtrmap_maxlevels = 0; + return; + } + + /* + * The realtime rmapbt lives on the data device, which means that its + * maximum height is constrained by the size of the data device and + * the height required to store one rmap record for each block in an + * rt group. + */ + d_maxlevels = xfs_btree_space_to_height(mp->m_rtrmap_mnr, + mp->m_sb.sb_dblocks); + r_maxlevels = xfs_btree_compute_maxlevels(mp->m_rtrmap_mnr, + mp->m_sb.sb_rgblocks); + + /* Add one level to handle the inode root level. */ + mp->m_rtrmap_maxlevels = min(d_maxlevels, r_maxlevels) + 1; +} diff --git a/fs/xfs/libxfs/xfs_rtrmap_btree.h b/fs/xfs/libxfs/xfs_rtrmap_btree.h new file mode 100644 index 0000000000000..0f73267971924 --- /dev/null +++ b/fs/xfs/libxfs/xfs_rtrmap_btree.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2018-2024 Oracle. All Rights Reserved. + * Author: Darrick J. Wong + */ +#ifndef __XFS_RTRMAP_BTREE_H__ +#define __XFS_RTRMAP_BTREE_H__ + +struct xfs_buf; +struct xfs_btree_cur; +struct xfs_mount; +struct xbtree_ifakeroot; +struct xfs_rtgroup; + +/* rmaps only exist on crc enabled filesystems */ +#define XFS_RTRMAP_BLOCK_LEN XFS_BTREE_LBLOCK_CRC_LEN + +struct xfs_btree_cur *xfs_rtrmapbt_init_cursor(struct xfs_mount *mp, + struct xfs_trans *tp, struct xfs_rtgroup *rtg, + struct xfs_inode *ip); +struct xfs_btree_cur *xfs_rtrmapbt_stage_cursor(struct xfs_mount *mp, + struct xfs_rtgroup *rtg, struct xfs_inode *ip, + struct xbtree_ifakeroot *ifake); +void xfs_rtrmapbt_commit_staged_btree(struct xfs_btree_cur *cur, + struct xfs_trans *tp); +unsigned int xfs_rtrmapbt_maxrecs(struct xfs_mount *mp, unsigned int blocklen, + bool leaf); +void xfs_rtrmapbt_compute_maxlevels(struct xfs_mount *mp); + +/* + * Addresses of records, keys, and pointers within an incore rtrmapbt block. + * + * (note that some of these may appear unused, but they are used in userspace) + */ +static inline struct xfs_rmap_rec * +xfs_rtrmap_rec_addr( + struct xfs_btree_block *block, + unsigned int index) +{ + return (struct xfs_rmap_rec *) + ((char *)block + XFS_RTRMAP_BLOCK_LEN + + (index - 1) * sizeof(struct xfs_rmap_rec)); +} + +static inline struct xfs_rmap_key * +xfs_rtrmap_key_addr( + struct xfs_btree_block *block, + unsigned int index) +{ + return (struct xfs_rmap_key *) + ((char *)block + XFS_RTRMAP_BLOCK_LEN + + (index - 1) * 2 * sizeof(struct xfs_rmap_key)); +} + +static inline struct xfs_rmap_key * +xfs_rtrmap_high_key_addr( + struct xfs_btree_block *block, + unsigned int index) +{ + return (struct xfs_rmap_key *) + ((char *)block + XFS_RTRMAP_BLOCK_LEN + + sizeof(struct xfs_rmap_key) + + (index - 1) * 2 * sizeof(struct xfs_rmap_key)); +} + +static inline xfs_rtrmap_ptr_t * +xfs_rtrmap_ptr_addr( + struct xfs_btree_block *block, + unsigned int index, + unsigned int maxrecs) +{ + return (xfs_rtrmap_ptr_t *) + ((char *)block + XFS_RTRMAP_BLOCK_LEN + + maxrecs * 2 * sizeof(struct xfs_rmap_key) + + (index - 1) * sizeof(xfs_rtrmap_ptr_t)); +} + +unsigned int xfs_rtrmapbt_maxlevels_ondisk(void); + +int __init xfs_rtrmapbt_init_cur_cache(void); +void xfs_rtrmapbt_destroy_cur_cache(void); + +#endif /* __XFS_RTRMAP_BTREE_H__ */ diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 8178a8e8097ff..a5ca8f4f8699f 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -28,6 +28,7 @@ #include "xfs_rtbitmap.h" #include "xfs_swapext.h" #include "xfs_rtgroup.h" +#include "xfs_rtrmap_btree.h" /* * Physical superblock buffer manipulations. Shared with libxfs in userspace. @@ -1125,6 +1126,11 @@ xfs_sb_mount_common( mp->m_rmap_mnr[0] = mp->m_rmap_mxr[0] / 2; mp->m_rmap_mnr[1] = mp->m_rmap_mxr[1] / 2; + mp->m_rtrmap_mxr[0] = xfs_rtrmapbt_maxrecs(mp, sbp->sb_blocksize, true); + mp->m_rtrmap_mxr[1] = xfs_rtrmapbt_maxrecs(mp, sbp->sb_blocksize, false); + mp->m_rtrmap_mnr[0] = mp->m_rtrmap_mxr[0] / 2; + mp->m_rtrmap_mnr[1] = mp->m_rtrmap_mxr[1] / 2; + mp->m_refc_mxr[0] = xfs_refcountbt_maxrecs(mp, sbp->sb_blocksize, true); mp->m_refc_mxr[1] = xfs_refcountbt_maxrecs(mp, sbp->sb_blocksize, false); mp->m_refc_mnr[0] = mp->m_refc_mxr[0] / 2; diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h index 8ad4b67d6febb..adb742267c9d0 100644 --- a/fs/xfs/libxfs/xfs_shared.h +++ b/fs/xfs/libxfs/xfs_shared.h @@ -42,6 +42,7 @@ extern const struct xfs_buf_ops xfs_rtbitmap_buf_ops; extern const struct xfs_buf_ops xfs_rtsummary_buf_ops; extern const struct xfs_buf_ops xfs_rtbuf_ops; extern const struct xfs_buf_ops xfs_rtsb_buf_ops; +extern const struct xfs_buf_ops xfs_rtrmapbt_buf_ops; extern const struct xfs_buf_ops xfs_sb_buf_ops; extern const struct xfs_buf_ops xfs_sb_quiet_buf_ops; extern const struct xfs_buf_ops xfs_symlink_buf_ops; @@ -54,6 +55,7 @@ extern const struct xfs_btree_ops xfs_finobt_ops; extern const struct xfs_btree_ops xfs_bmbt_ops; extern const struct xfs_btree_ops xfs_refcountbt_ops; extern const struct xfs_btree_ops xfs_rmapbt_ops; +extern const struct xfs_btree_ops xfs_rtrmapbt_ops; /* log size calculation functions */ int xfs_log_calc_unit_res(struct xfs_mount *mp, int unit_bytes); diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index c774ac73bdec5..30d2d0c5e5e53 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -36,6 +36,7 @@ #include "xfs_ag.h" #include "xfs_imeta.h" #include "xfs_rtgroup.h" +#include "xfs_rtrmap_btree.h" #include "scrub/stats.h" static DEFINE_MUTEX(xfs_uuid_table_mutex); @@ -664,8 +665,7 @@ static inline void xfs_rtbtree_compute_maxlevels( struct xfs_mount *mp) { - /* This will be filled in later. */ - mp->m_rtbtree_maxlevels = 0; + mp->m_rtbtree_maxlevels = mp->m_rtrmap_maxlevels; } /* @@ -737,6 +737,7 @@ xfs_mountfs( xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK); xfs_mount_setup_inode_geom(mp); xfs_rmapbt_compute_maxlevels(mp); + xfs_rtrmapbt_compute_maxlevels(mp); xfs_refcountbt_compute_maxlevels(mp); xfs_agbtree_compute_maxlevels(mp); diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 7ef8d5f706883..ada8b281d74e2 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -133,11 +133,14 @@ typedef struct xfs_mount { uint m_bmap_dmnr[2]; /* min bmap btree records */ uint m_rmap_mxr[2]; /* max rmap btree records */ uint m_rmap_mnr[2]; /* min rmap btree records */ + uint m_rtrmap_mxr[2]; /* max rtrmap btree records */ + uint m_rtrmap_mnr[2]; /* min rtrmap btree records */ uint m_refc_mxr[2]; /* max refc btree records */ uint m_refc_mnr[2]; /* min refc btree records */ uint m_alloc_maxlevels; /* max alloc btree levels */ uint m_bm_maxlevels[2]; /* max bmap btree levels */ uint m_rmap_maxlevels; /* max rmap btree levels */ + uint m_rtrmap_maxlevels; /* max rtrmap btree level */ uint m_refc_maxlevels; /* max refcount btree level */ unsigned int m_agbtree_maxlevels; /* max level of all AG btrees */ unsigned int m_rtbtree_maxlevels; /* max level of all rt btrees */ @@ -369,6 +372,12 @@ __XFS_HAS_FEAT(large_extent_counts, NREXT64) __XFS_HAS_FEAT(metadir, METADIR) __XFS_HAS_FEAT(rtgroups, RTGROUPS) +static inline bool xfs_has_rtrmapbt(struct xfs_mount *mp) +{ + return xfs_has_rtgroups(mp) && xfs_has_realtime(mp) && + xfs_has_rmapbt(mp); +} + /* * Mount features *