From: Christoph Hellwig <hch@xxxxxx> Source kernel commit: e9c4d8bfb26c13c41b73fdf4183d3df2d392101e Split the lookup and refcount handling of struct xfs_perag into an embedded xfs_group structure that can be reused for the upcoming realtime groups. It will be extended with more features later. Note that he xg_type field will only need a single bit even with realtime group support. For now it fills a hole, but it might be worth to fold it into another field if we can use this space better. Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx> Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- db/fsmap.c | 6 +- db/info.c | 2 - db/iunlink.c | 2 - include/xfs_mount.h | 6 +- include/xfs_trace.h | 7 ++ libfrog/radix-tree.h | 9 ++ libxfs/Makefile | 2 + libxfs/defer_item.c | 6 +- libxfs/init.c | 8 +- libxfs/iunlink.c | 11 ++- libxfs/xfs_ag.c | 139 +++++++----------------------------- libxfs/xfs_ag.h | 81 +++++++++++++++++---- libxfs/xfs_ag_resv.c | 19 +++-- libxfs/xfs_alloc.c | 39 +++++----- libxfs/xfs_alloc_btree.c | 2 - libxfs/xfs_bmap.c | 2 - libxfs/xfs_btree.c | 6 +- libxfs/xfs_group.c | 168 +++++++++++++++++++++++++++++++++++++++++++ libxfs/xfs_group.h | 41 ++++++++++ libxfs/xfs_ialloc.c | 40 +++++----- libxfs/xfs_ialloc_btree.c | 16 ++-- libxfs/xfs_refcount.c | 4 + libxfs/xfs_refcount_btree.c | 8 +- libxfs/xfs_rmap.c | 4 + libxfs/xfs_rmap_btree.c | 7 +- libxfs/xfs_sb.c | 6 +- libxfs/xfs_types.h | 8 ++ repair/agbtree.c | 27 +++---- repair/bmap_repair.c | 4 - repair/bulkload.c | 9 +- repair/phase2.c | 10 +-- repair/phase5.c | 2 - repair/rmap.c | 10 +-- 33 files changed, 455 insertions(+), 256 deletions(-) create mode 100644 libxfs/xfs_group.c create mode 100644 libxfs/xfs_group.h diff --git a/db/fsmap.c b/db/fsmap.c index 7fd42df2a1c854..923d7568b9d977 100644 --- a/db/fsmap.c +++ b/db/fsmap.c @@ -64,7 +64,7 @@ fsmap( info.nr = 0; for_each_perag_range(mp, start_ag, end_ag, pag) { - if (pag->pag_agno == end_ag) + if (pag_agno(pag) == end_ag) high.rm_startblock = XFS_FSB_TO_AGBNO(mp, end_fsb); error = -libxfs_alloc_read_agf(pag, NULL, 0, &agbp); @@ -82,7 +82,7 @@ fsmap( return; } - info.agno = pag->pag_agno; + info.agno = pag_agno(pag); error = -libxfs_rmap_query_range(bt_cur, &low, &high, fsmap_fn, &info); if (error) { @@ -97,7 +97,7 @@ fsmap( libxfs_btree_del_cursor(bt_cur, XFS_BTREE_NOERROR); libxfs_buf_relse(agbp); - if (pag->pag_agno == start_ag) + if (pag_agno(pag) == start_ag) low.rm_startblock = 0; } } diff --git a/db/info.c b/db/info.c index 9c6203f029d41c..6a8765ec761a49 100644 --- a/db/info.c +++ b/db/info.c @@ -66,7 +66,7 @@ print_agresv_info( { struct xfs_buf *bp; struct xfs_agf *agf; - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); xfs_extlen_t ask = 0; xfs_extlen_t used = 0; xfs_extlen_t free = 0; diff --git a/db/iunlink.c b/db/iunlink.c index 55ba5af5a3c563..c9977a859e2842 100644 --- a/db/iunlink.c +++ b/db/iunlink.c @@ -117,7 +117,7 @@ dump_unlinked( bool verbose) { struct xfs_buf *agi_bp; - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); int error; error = -libxfs_ialloc_read_agi(pag, NULL, 0, &agi_bp); diff --git a/include/xfs_mount.h b/include/xfs_mount.h index e2add8a648f887..2102009aa8df73 100644 --- a/include/xfs_mount.h +++ b/include/xfs_mount.h @@ -24,6 +24,10 @@ enum { XFS_LOWSP_MAX, }; +struct xfs_groups { + struct xarray xa; +}; + /* * Define a user-level mount structure with all we need * in order to make use of the numerous XFS_* macros. @@ -91,7 +95,7 @@ typedef struct xfs_mount { xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */ uint m_alloc_set_aside; /* space we can't use */ uint m_ag_max_usable; /* max space per AG */ - struct xarray m_perags; + struct xfs_groups m_groups[XG_TYPE_MAX]; uint64_t m_features; /* active filesystem features */ uint64_t m_low_space[XFS_LOWSP_MAX]; uint64_t m_rtxblkmask; /* rt extent block mask */ diff --git a/include/xfs_trace.h b/include/xfs_trace.h index 012e0018cb8367..de435a9d1a2a64 100644 --- a/include/xfs_trace.h +++ b/include/xfs_trace.h @@ -366,4 +366,11 @@ #define trace_xfs_iunlink_reload_next(...) ((void) 0) #define trace_xfs_iunlink_remove(...) ((void) 0) +#define trace_xfs_group_get(...) ((void) 0) +#define trace_xfs_group_grab_next_tag(...) ((void) 0) +#define trace_xfs_group_grab(...) ((void) 0) +#define trace_xfs_group_hold(...) ((void) 0) +#define trace_xfs_group_put(...) ((void) 0) +#define trace_xfs_group_rele(...) ((void) 0) + #endif /* __TRACE_H__ */ diff --git a/libfrog/radix-tree.h b/libfrog/radix-tree.h index fe896134eeb283..0a4e3bb4f9defc 100644 --- a/libfrog/radix-tree.h +++ b/libfrog/radix-tree.h @@ -72,6 +72,8 @@ struct xarray { struct radix_tree_root r; }; +typedef unsigned xa_mark_t; + static inline void xa_init(struct xarray *xa) { INIT_RADIX_TREE(&xa->r, GFP_KERNEL); @@ -98,4 +100,11 @@ static inline int xa_insert(struct xarray *xa, unsigned long index, void *entry, return error; } +static inline void *xa_find(struct xarray *xa, unsigned long *indexp, + unsigned long max, xa_mark_t filter) +{ + /* not implemented */ + return NULL; +} + #endif /* __LIBFROG_RADIX_TREE_H__ */ diff --git a/libxfs/Makefile b/libxfs/Makefile index aca28440adac08..470583006de69a 100644 --- a/libxfs/Makefile +++ b/libxfs/Makefile @@ -49,6 +49,7 @@ HFILES = \ xfs_dir2.h \ xfs_errortag.h \ xfs_exchmaps.h \ + xfs_group.h \ xfs_ialloc.h \ xfs_ialloc_btree.h \ xfs_inode_buf.h \ @@ -105,6 +106,7 @@ CFILES = buf_mem.c \ xfs_dir2_sf.c \ xfs_dquot_buf.c \ xfs_exchmaps.c \ + xfs_group.c \ xfs_ialloc.c \ xfs_iext_tree.c \ xfs_inode_buf.c \ diff --git a/libxfs/defer_item.c b/libxfs/defer_item.c index d5e075362ababe..f0f35361a0ff97 100644 --- a/libxfs/defer_item.c +++ b/libxfs/defer_item.c @@ -48,7 +48,7 @@ xfs_extent_free_diff_items( struct xfs_extent_free_item *ra = xefi_entry(a); struct xfs_extent_free_item *rb = xefi_entry(b); - return ra->xefi_pag->pag_agno - rb->xefi_pag->pag_agno; + return pag_agno(ra->xefi_pag) - pag_agno(rb->xefi_pag); } /* Get an EFI. */ @@ -215,7 +215,7 @@ xfs_rmap_update_diff_items( struct xfs_rmap_intent *ra = ri_entry(a); struct xfs_rmap_intent *rb = ri_entry(b); - return ra->ri_pag->pag_agno - rb->ri_pag->pag_agno; + return pag_agno(ra->ri_pag) - pag_agno(rb->ri_pag); } /* Get an RUI. */ @@ -336,7 +336,7 @@ xfs_refcount_update_diff_items( struct xfs_refcount_intent *ra = ci_entry(a); struct xfs_refcount_intent *rb = ci_entry(b); - return ra->ri_pag->pag_agno - rb->ri_pag->pag_agno; + return pag_agno(ra->ri_pag) - pag_agno(rb->ri_pag); } /* Get an CUI. */ diff --git a/libxfs/init.c b/libxfs/init.c index 483cd99546052f..beb58706629d23 100644 --- a/libxfs/init.c +++ b/libxfs/init.c @@ -360,7 +360,7 @@ xfs_set_inode_alloc_perag( xfs_ino_t ino, xfs_agnumber_t max_metadata) { - if (!xfs_is_inode32(pag->pag_mount)) { + if (!xfs_is_inode32(pag_mount(pag))) { set_bit(XFS_AGSTATE_ALLOWS_INODES, &pag->pag_opstate); clear_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate); return false; @@ -373,7 +373,7 @@ xfs_set_inode_alloc_perag( } set_bit(XFS_AGSTATE_ALLOWS_INODES, &pag->pag_opstate); - if (pag->pag_agno < max_metadata) + if (pag_agno(pag) < max_metadata) set_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate); else clear_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate); @@ -650,6 +650,7 @@ libxfs_mount( struct xfs_buf *bp; struct xfs_sb *sbp; xfs_daddr_t d; + int i; int error; mp->m_features = xfs_sb_version_to_features(sb); @@ -667,7 +668,8 @@ libxfs_mount( mp->m_finobt_nores = true; xfs_set_inode32(mp); mp->m_sb = *sb; - xa_init(&mp->m_perags); + for (i = 0; i < XG_TYPE_MAX; i++) + xa_init(&mp->m_groups[i].xa); sbp = &mp->m_sb; spin_lock_init(&mp->m_sb_lock); spin_lock_init(&mp->m_agirotor_lock); diff --git a/libxfs/iunlink.c b/libxfs/iunlink.c index 6d0554535994c9..53e36cdc3439b2 100644 --- a/libxfs/iunlink.c +++ b/libxfs/iunlink.c @@ -65,9 +65,10 @@ xfs_iunlink_log_dinode( goto out; } - trace_xfs_iunlink_update_dinode(mp, iup->pag->pag_agno, - XFS_INO_TO_AGINO(mp, ip->i_ino), - be32_to_cpu(dip->di_next_unlinked), iup->next_agino); + trace_xfs_iunlink_update_dinode(mp, pag_agno(iup->pag), + XFS_INO_TO_AGINO(mp, ip->i_ino), + be32_to_cpu(dip->di_next_unlinked), + iup->next_agino); dip->di_next_unlinked = cpu_to_be32(iup->next_agino); offset = ip->i_imap.im_boffset + @@ -137,14 +138,14 @@ xfs_iunlink_reload_next( xfs_agino_t next_agino) { struct xfs_perag *pag = agibp->b_pag; - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_inode *next_ip = NULL; xfs_ino_t ino; int error; ASSERT(next_agino != NULLAGINO); - ino = XFS_AGINO_TO_INO(mp, pag->pag_agno, next_agino); + ino = XFS_AGINO_TO_INO(mp, pag_agno(pag), next_agino); error = libxfs_iget(mp, tp, ino, XFS_IGET_UNTRUSTED, &next_ip); if (error) return error; diff --git a/libxfs/xfs_ag.c b/libxfs/xfs_ag.c index e22ce4e83f4a62..15d4ac5a99f0e7 100644 --- a/libxfs/xfs_ag.c +++ b/libxfs/xfs_ag.c @@ -28,85 +28,7 @@ #include "xfs_trans.h" #include "xfs_trace.h" #include "xfs_inode.h" - - -/* - * Passive reference counting access wrappers to the perag structures. If the - * per-ag structure is to be freed, the freeing code is responsible for cleaning - * up objects with passive references before freeing the structure. This is - * things like cached buffers. - */ -struct xfs_perag * -xfs_perag_get( - struct xfs_mount *mp, - xfs_agnumber_t agno) -{ - struct xfs_perag *pag; - - rcu_read_lock(); - pag = xa_load(&mp->m_perags, agno); - if (pag) { - trace_xfs_perag_get(pag, _RET_IP_); - ASSERT(atomic_read(&pag->pag_ref) >= 0); - atomic_inc(&pag->pag_ref); - } - rcu_read_unlock(); - return pag; -} - -/* Get a passive reference to the given perag. */ -struct xfs_perag * -xfs_perag_hold( - struct xfs_perag *pag) -{ - ASSERT(atomic_read(&pag->pag_ref) > 0 || - atomic_read(&pag->pag_active_ref) > 0); - - trace_xfs_perag_hold(pag, _RET_IP_); - atomic_inc(&pag->pag_ref); - return pag; -} - -void -xfs_perag_put( - struct xfs_perag *pag) -{ - trace_xfs_perag_put(pag, _RET_IP_); - ASSERT(atomic_read(&pag->pag_ref) > 0); - atomic_dec(&pag->pag_ref); -} - -/* - * Active references for perag structures. This is for short term access to the - * per ag structures for walking trees or accessing state. If an AG is being - * shrunk or is offline, then this will fail to find that AG and return NULL - * instead. - */ -struct xfs_perag * -xfs_perag_grab( - struct xfs_mount *mp, - xfs_agnumber_t agno) -{ - struct xfs_perag *pag; - - rcu_read_lock(); - pag = xa_load(&mp->m_perags, agno); - if (pag) { - trace_xfs_perag_grab(pag, _RET_IP_); - if (!atomic_inc_not_zero(&pag->pag_active_ref)) - pag = NULL; - } - rcu_read_unlock(); - return pag; -} - -void -xfs_perag_rele( - struct xfs_perag *pag) -{ - trace_xfs_perag_rele(pag, _RET_IP_); - atomic_dec(&pag->pag_active_ref); -} +#include "xfs_group.h" /* * xfs_initialize_perag_data @@ -181,6 +103,19 @@ xfs_initialize_perag_data( return error; } +static void +xfs_perag_uninit( + struct xfs_group *xg) +{ +#ifdef __KERNEL__ + struct xfs_perag *pag = to_perag(xg); + + xfs_defer_drain_free(&pag->pag_intents_drain); + cancel_delayed_work_sync(&pag->pag_blockgc_work); + xfs_buf_cache_destroy(&pag->pag_bcache); +#endif +} + /* * Free up the per-ag resources within the specified AG range. */ @@ -193,22 +128,8 @@ xfs_free_perag_range( { xfs_agnumber_t agno; - for (agno = first_agno; agno < end_agno; agno++) { - struct xfs_perag *pag = xa_erase(&mp->m_perags, agno); - - ASSERT(pag); - XFS_IS_CORRUPT(pag->pag_mount, atomic_read(&pag->pag_ref) != 0); - xfs_defer_drain_free(&pag->pag_intents_drain); - - cancel_delayed_work_sync(&pag->pag_blockgc_work); - xfs_buf_cache_destroy(&pag->pag_bcache); - - /* drop the mount's active reference */ - xfs_perag_rele(pag); - XFS_IS_CORRUPT(pag->pag_mount, - atomic_read(&pag->pag_active_ref) != 0); - kfree_rcu_mightsleep(pag); - } + for (agno = first_agno; agno < end_agno; agno++) + xfs_group_free(mp, agno, XG_TYPE_AG, xfs_perag_uninit); } /* Find the size of the AG, in blocks. */ @@ -330,16 +251,9 @@ xfs_perag_alloc( __xfs_agino_range(mp, pag->block_count, &pag->agino_min, &pag->agino_max); - pag->pag_agno = index; - pag->pag_mount = mp; - /* Active ref owned by mount indicates AG is online. */ - atomic_set(&pag->pag_active_ref, 1); - - error = xa_insert(&mp->m_perags, index, pag, GFP_KERNEL); - if (error) { - WARN_ON_ONCE(error == -EBUSY); + error = xfs_group_insert(mp, pag_group(pag), index, XG_TYPE_AG); + if (error) goto out_buf_cache_destroy; - } return 0; @@ -831,7 +745,7 @@ xfs_ag_shrink_space( struct xfs_trans **tpp, xfs_extlen_t delta) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_alloc_arg args = { .tp = *tpp, .mp = mp, @@ -848,7 +762,7 @@ xfs_ag_shrink_space( xfs_agblock_t aglen; int error, err2; - ASSERT(pag->pag_agno == mp->m_sb.sb_agcount - 1); + ASSERT(pag_agno(pag) == mp->m_sb.sb_agcount - 1); error = xfs_ialloc_read_agi(pag, *tpp, 0, &agibp); if (error) return error; @@ -945,8 +859,8 @@ xfs_ag_shrink_space( /* Update perag geometry */ pag->block_count -= delta; - __xfs_agino_range(pag->pag_mount, pag->block_count, &pag->agino_min, - &pag->agino_max); + __xfs_agino_range(mp, pag->block_count, &pag->agino_min, + &pag->agino_max); xfs_ialloc_log_agi(*tpp, agibp, XFS_AGI_LENGTH); xfs_alloc_log_agf(*tpp, agfbp, XFS_AGF_LENGTH); @@ -971,12 +885,13 @@ xfs_ag_extend_space( struct xfs_trans *tp, xfs_extlen_t len) { + struct xfs_mount *mp = pag_mount(pag); struct xfs_buf *bp; struct xfs_agi *agi; struct xfs_agf *agf; int error; - ASSERT(pag->pag_agno == pag->pag_mount->m_sb.sb_agcount - 1); + ASSERT(pag_agno(pag) == mp->m_sb.sb_agcount - 1); error = xfs_ialloc_read_agi(pag, tp, 0, &bp); if (error) @@ -1016,8 +931,8 @@ xfs_ag_extend_space( /* Update perag geometry */ pag->block_count = be32_to_cpu(agf->agf_length); - __xfs_agino_range(pag->pag_mount, pag->block_count, &pag->agino_min, - &pag->agino_max); + __xfs_agino_range(mp, pag->block_count, &pag->agino_min, + &pag->agino_max); return 0; } @@ -1044,7 +959,7 @@ xfs_ag_get_geometry( /* Fill out form. */ memset(ageo, 0, sizeof(*ageo)); - ageo->ag_number = pag->pag_agno; + ageo->ag_number = pag_agno(pag); agi = agi_bp->b_addr; ageo->ag_icount = be32_to_cpu(agi->agi_count); diff --git a/libxfs/xfs_ag.h b/libxfs/xfs_ag.h index 8787823ae37f9f..69b934ad2c4aad 100644 --- a/libxfs/xfs_ag.h +++ b/libxfs/xfs_ag.h @@ -7,6 +7,8 @@ #ifndef __LIBXFS_AG_H #define __LIBXFS_AG_H 1 +#include "xfs_group.h" + struct xfs_mount; struct xfs_trans; struct xfs_perag; @@ -30,10 +32,7 @@ struct xfs_ag_resv { * performance of allocation group selection. */ struct xfs_perag { - struct xfs_mount *pag_mount; /* owner filesystem */ - xfs_agnumber_t pag_agno; /* AG this structure belongs to */ - atomic_t pag_ref; /* passive reference count */ - atomic_t pag_active_ref; /* active reference count */ + struct xfs_group pag_group; unsigned long pag_opstate; uint8_t pagf_bno_level; /* # of levels in bno btree */ uint8_t pagf_cnt_level; /* # of levels in cnt btree */ @@ -121,6 +120,26 @@ struct xfs_perag { #endif /* __KERNEL__ */ }; +static inline struct xfs_perag *to_perag(struct xfs_group *xg) +{ + return container_of(xg, struct xfs_perag, pag_group); +} + +static inline struct xfs_group *pag_group(struct xfs_perag *pag) +{ + return &pag->pag_group; +} + +static inline struct xfs_mount *pag_mount(const struct xfs_perag *pag) +{ + return pag->pag_group.xg_mount; +} + +static inline xfs_agnumber_t pag_agno(const struct xfs_perag *pag) +{ + return pag->pag_group.xg_gno; +} + /* * Per-AG operational state. These are atomic flag bits. */ @@ -151,13 +170,43 @@ int xfs_initialize_perag_data(struct xfs_mount *mp, xfs_agnumber_t agno); int xfs_update_last_ag_size(struct xfs_mount *mp, xfs_agnumber_t prev_agcount); /* Passive AG references */ -struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno); -struct xfs_perag *xfs_perag_hold(struct xfs_perag *pag); -void xfs_perag_put(struct xfs_perag *pag); +static inline struct xfs_perag * +xfs_perag_get( + struct xfs_mount *mp, + xfs_agnumber_t agno) +{ + return to_perag(xfs_group_get(mp, agno, XG_TYPE_AG)); +} + +static inline struct xfs_perag * +xfs_perag_hold( + struct xfs_perag *pag) +{ + return to_perag(xfs_group_hold(pag_group(pag))); +} + +static inline void +xfs_perag_put( + struct xfs_perag *pag) +{ + xfs_group_put(pag_group(pag)); +} /* Active AG references */ -struct xfs_perag *xfs_perag_grab(struct xfs_mount *, xfs_agnumber_t); -void xfs_perag_rele(struct xfs_perag *pag); +static inline struct xfs_perag * +xfs_perag_grab( + struct xfs_mount *mp, + xfs_agnumber_t agno) +{ + return to_perag(xfs_group_grab(mp, agno, XG_TYPE_AG)); +} + +static inline void +xfs_perag_rele( + struct xfs_perag *pag) +{ + xfs_group_rele(pag_group(pag)); +} /* * Per-ag geometry infomation and validation @@ -233,9 +282,9 @@ xfs_perag_next( xfs_agnumber_t *agno, xfs_agnumber_t end_agno) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); - *agno = pag->pag_agno + 1; + *agno = pag_agno(pag) + 1; xfs_perag_rele(pag); while (*agno <= end_agno) { pag = xfs_perag_grab(mp, *agno); @@ -266,9 +315,9 @@ xfs_perag_next_wrap( xfs_agnumber_t restart_agno, xfs_agnumber_t wrap_agno) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); - *agno = pag->pag_agno + 1; + *agno = pag_agno(pag) + 1; xfs_perag_rele(pag); while (*agno != stop_agno) { if (*agno >= wrap_agno) { @@ -335,7 +384,7 @@ xfs_agbno_to_fsb( struct xfs_perag *pag, xfs_agblock_t agbno) { - return XFS_AGB_TO_FSB(pag->pag_mount, pag->pag_agno, agbno); + return XFS_AGB_TO_FSB(pag_mount(pag), pag_agno(pag), agbno); } static inline xfs_daddr_t @@ -343,7 +392,7 @@ xfs_agbno_to_daddr( struct xfs_perag *pag, xfs_agblock_t agbno) { - return XFS_AGB_TO_DADDR(pag->pag_mount, pag->pag_agno, agbno); + return XFS_AGB_TO_DADDR(pag_mount(pag), pag_agno(pag), agbno); } static inline xfs_ino_t @@ -351,7 +400,7 @@ xfs_agino_to_ino( struct xfs_perag *pag, xfs_agino_t agino) { - return XFS_AGINO_TO_INO(pag->pag_mount, pag->pag_agno, agino); + return XFS_AGINO_TO_INO(pag_mount(pag), pag_agno(pag), agino); } #endif /* __LIBXFS_AG_H */ diff --git a/libxfs/xfs_ag_resv.c b/libxfs/xfs_ag_resv.c index d1657d6c636546..f5cbaa94664f22 100644 --- a/libxfs/xfs_ag_resv.c +++ b/libxfs/xfs_ag_resv.c @@ -69,6 +69,7 @@ xfs_ag_resv_critical( struct xfs_perag *pag, enum xfs_ag_resv_type type) { + struct xfs_mount *mp = pag_mount(pag); xfs_extlen_t avail; xfs_extlen_t orig; @@ -91,8 +92,8 @@ xfs_ag_resv_critical( /* Critically low if less than 10% or max btree height remains. */ return XFS_TEST_ERROR(avail < orig / 10 || - avail < pag->pag_mount->m_agbtree_maxlevels, - pag->pag_mount, XFS_ERRTAG_AG_RESV_CRITICAL); + avail < mp->m_agbtree_maxlevels, + mp, XFS_ERRTAG_AG_RESV_CRITICAL); } /* @@ -136,8 +137,8 @@ __xfs_ag_resv_free( trace_xfs_ag_resv_free(pag, type, 0); resv = xfs_perag_resv(pag, type); - if (pag->pag_agno == 0) - pag->pag_mount->m_ag_max_usable += resv->ar_asked; + if (pag_agno(pag) == 0) + pag_mount(pag)->m_ag_max_usable += resv->ar_asked; /* * RMAPBT blocks come from the AGFL and AGFL blocks are always * considered "free", so whatever was reserved at mount time must be @@ -147,7 +148,7 @@ __xfs_ag_resv_free( oldresv = resv->ar_orig_reserved; else oldresv = resv->ar_reserved; - xfs_add_fdblocks(pag->pag_mount, oldresv); + xfs_add_fdblocks(pag_mount(pag), oldresv); resv->ar_reserved = 0; resv->ar_asked = 0; resv->ar_orig_reserved = 0; @@ -169,7 +170,7 @@ __xfs_ag_resv_init( xfs_extlen_t ask, xfs_extlen_t used) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_ag_resv *resv; int error; xfs_extlen_t hidden_space; @@ -208,7 +209,7 @@ __xfs_ag_resv_init( trace_xfs_ag_resv_init_error(pag, error, _RET_IP_); xfs_warn(mp, "Per-AG reservation for AG %u failed. Filesystem may run out of space.", - pag->pag_agno); + pag_agno(pag)); return error; } @@ -218,7 +219,7 @@ __xfs_ag_resv_init( * counter, we only make the adjustment for AG 0. This assumes that * there aren't any AGs hungrier for per-AG reservation than AG 0. */ - if (pag->pag_agno == 0) + if (pag_agno(pag) == 0) mp->m_ag_max_usable -= ask; resv = xfs_perag_resv(pag, type); @@ -236,7 +237,7 @@ xfs_ag_resv_init( struct xfs_perag *pag, struct xfs_trans *tp) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); xfs_extlen_t ask; xfs_extlen_t used; int error = 0, error2; diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c index bd39bcde0ea224..39e1961078ae3a 100644 --- a/libxfs/xfs_alloc.c +++ b/libxfs/xfs_alloc.c @@ -271,7 +271,7 @@ xfs_alloc_complain_bad_rec( xfs_warn(mp, "%sbt record corruption in AG %d detected at %pS!", - cur->bc_ops->name, cur->bc_ag.pag->pag_agno, fa); + cur->bc_ops->name, pag_agno(cur->bc_ag.pag), fa); xfs_warn(mp, "start block 0x%x block count 0x%x", irec->ar_startblock, irec->ar_blockcount); @@ -795,7 +795,7 @@ xfs_agfl_verify( * use it by using uncached buffers that don't have the perag attached * so we can detect and avoid this problem. */ - if (bp->b_pag && be32_to_cpu(agfl->agfl_seqno) != bp->b_pag->pag_agno) + if (bp->b_pag && be32_to_cpu(agfl->agfl_seqno) != pag_agno((bp->b_pag))) return __this_address; for (i = 0; i < xfs_agfl_size(mp); i++) { @@ -875,13 +875,12 @@ xfs_alloc_read_agfl( struct xfs_trans *tp, struct xfs_buf **bpp) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_buf *bp; int error; - error = xfs_trans_read_buf( - mp, tp, mp->m_ddev_targp, - XFS_AG_DADDR(mp, pag->pag_agno, XFS_AGFL_DADDR(mp)), + error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, + XFS_AG_DADDR(mp, pag_agno(pag), XFS_AGFL_DADDR(mp)), XFS_FSS_TO_BB(mp, 1), 0, &bp, &xfs_agfl_buf_ops); if (xfs_metadata_is_sick(error)) xfs_ag_mark_sick(pag, XFS_SICK_AG_AGFL); @@ -2424,7 +2423,7 @@ xfs_alloc_longest_free_extent( * reservations and AGFL rules in place, we can return this extent. */ if (pag->pagf_longest > delta) - return min_t(xfs_extlen_t, pag->pag_mount->m_ag_max_usable, + return min_t(xfs_extlen_t, pag_mount(pag)->m_ag_max_usable, pag->pagf_longest - delta); /* Otherwise, let the caller try for 1 block if there's space. */ @@ -2607,7 +2606,7 @@ xfs_agfl_reset( xfs_warn(mp, "WARNING: Reset corrupted AGFL on AG %u. %d blocks leaked. " "Please unmount and run xfs_repair.", - pag->pag_agno, pag->pagf_flcount); + pag_agno(pag), pag->pagf_flcount); agf->agf_flfirst = 0; agf->agf_fllast = cpu_to_be32(xfs_agfl_size(mp) - 1); @@ -3182,7 +3181,7 @@ xfs_validate_ag_length( * use it by using uncached buffers that don't have the perag attached * so we can detect and avoid this problem. */ - if (bp->b_pag && seqno != bp->b_pag->pag_agno) + if (bp->b_pag && seqno != pag_agno(bp->b_pag)) return __this_address; /* @@ -3351,13 +3350,13 @@ xfs_read_agf( int flags, struct xfs_buf **agfbpp) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); int error; trace_xfs_read_agf(pag); error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, - XFS_AG_DADDR(mp, pag->pag_agno, XFS_AGF_DADDR(mp)), + XFS_AG_DADDR(mp, pag_agno(pag), XFS_AGF_DADDR(mp)), XFS_FSS_TO_BB(mp, 1), flags, agfbpp, &xfs_agf_buf_ops); if (xfs_metadata_is_sick(error)) xfs_ag_mark_sick(pag, XFS_SICK_AG_AGF); @@ -3380,6 +3379,7 @@ xfs_alloc_read_agf( int flags, struct xfs_buf **agfbpp) { + struct xfs_mount *mp = pag_mount(pag); struct xfs_buf *agfbp; struct xfs_agf *agf; int error; @@ -3406,7 +3406,7 @@ xfs_alloc_read_agf( pag->pagf_cnt_level = be32_to_cpu(agf->agf_cnt_level); pag->pagf_rmap_level = be32_to_cpu(agf->agf_rmap_level); pag->pagf_refcount_level = be32_to_cpu(agf->agf_refcount_level); - if (xfs_agfl_needs_reset(pag->pag_mount, agf)) + if (xfs_agfl_needs_reset(mp, agf)) set_bit(XFS_AGSTATE_AGFL_NEEDS_RESET, &pag->pag_opstate); else clear_bit(XFS_AGSTATE_AGFL_NEEDS_RESET, &pag->pag_opstate); @@ -3419,16 +3419,15 @@ xfs_alloc_read_agf( * counter only tracks non-root blocks. */ allocbt_blks = pag->pagf_btreeblks; - if (xfs_has_rmapbt(pag->pag_mount)) + if (xfs_has_rmapbt(mp)) allocbt_blks -= be32_to_cpu(agf->agf_rmap_blocks) - 1; if (allocbt_blks > 0) - atomic64_add(allocbt_blks, - &pag->pag_mount->m_allocbt_blks); + atomic64_add(allocbt_blks, &mp->m_allocbt_blks); set_bit(XFS_AGSTATE_AGF_INIT, &pag->pag_opstate); } #ifdef DEBUG - else if (!xfs_is_shutdown(pag->pag_mount)) { + else if (!xfs_is_shutdown(mp)) { ASSERT(pag->pagf_freeblks == be32_to_cpu(agf->agf_freeblks)); ASSERT(pag->pagf_btreeblks == be32_to_cpu(agf->agf_btreeblks)); ASSERT(pag->pagf_flcount == be32_to_cpu(agf->agf_flcount)); @@ -3646,7 +3645,7 @@ xfs_alloc_vextent_this_ag( int error; ASSERT(args->pag != NULL); - ASSERT(args->pag->pag_agno == agno); + ASSERT(pag_agno(args->pag) == agno); args->agno = agno; args->agbno = 0; @@ -3859,7 +3858,7 @@ xfs_alloc_vextent_exact_bno( int error; ASSERT(args->pag != NULL); - ASSERT(args->pag->pag_agno == XFS_FSB_TO_AGNO(mp, target)); + ASSERT(pag_agno(args->pag) == XFS_FSB_TO_AGNO(mp, target)); args->agno = XFS_FSB_TO_AGNO(mp, target); args->agbno = XFS_FSB_TO_AGBNO(mp, target); @@ -3898,7 +3897,7 @@ xfs_alloc_vextent_near_bno( int error; if (!needs_perag) - ASSERT(args->pag->pag_agno == XFS_FSB_TO_AGNO(mp, target)); + ASSERT(pag_agno(args->pag) == XFS_FSB_TO_AGNO(mp, target)); args->agno = XFS_FSB_TO_AGNO(mp, target); args->agbno = XFS_FSB_TO_AGBNO(mp, target); @@ -3935,7 +3934,7 @@ xfs_free_extent_fix_freelist( memset(&args, 0, sizeof(struct xfs_alloc_arg)); args.tp = tp; args.mp = tp->t_mountp; - args.agno = pag->pag_agno; + args.agno = pag_agno(pag); args.pag = pag; /* diff --git a/libxfs/xfs_alloc_btree.c b/libxfs/xfs_alloc_btree.c index 949cd18ab16a99..667655a639fef1 100644 --- a/libxfs/xfs_alloc_btree.c +++ b/libxfs/xfs_alloc_btree.c @@ -176,7 +176,7 @@ xfs_allocbt_init_ptr_from_cur( { struct xfs_agf *agf = cur->bc_ag.agbp->b_addr; - ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno)); + ASSERT(pag_agno(cur->bc_ag.pag) == be32_to_cpu(agf->agf_seqno)); if (xfs_btree_is_bno(cur->bc_ops)) ptr->s = agf->agf_bno_root; diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c index aec378ff4a9193..13cd4faa492838 100644 --- a/libxfs/xfs_bmap.c +++ b/libxfs/xfs_bmap.c @@ -3274,7 +3274,7 @@ xfs_bmap_longest_free_extent( } longest = xfs_alloc_longest_free_extent(pag, - xfs_alloc_min_freelist(pag->pag_mount, pag), + xfs_alloc_min_freelist(pag_mount(pag), pag), xfs_ag_resv_needed(pag, XFS_AG_RESV_NONE)); if (*blen < longest) *blen = longest; diff --git a/libxfs/xfs_btree.c b/libxfs/xfs_btree.c index 4f04a92f6513bf..2b63c18114763c 100644 --- a/libxfs/xfs_btree.c +++ b/libxfs/xfs_btree.c @@ -370,7 +370,7 @@ xfs_btree_check_ptr( case XFS_BTREE_TYPE_AG: xfs_err(cur->bc_mp, "AG %u: Corrupt %sbt pointer at level %d index %d.", - cur->bc_ag.pag->pag_agno, cur->bc_ops->name, + pag_agno(cur->bc_ag.pag), cur->bc_ops->name, level, index); break; } @@ -1310,7 +1310,7 @@ xfs_btree_owner( case XFS_BTREE_TYPE_INODE: return cur->bc_ino.ip->i_ino; case XFS_BTREE_TYPE_AG: - return cur->bc_ag.pag->pag_agno; + return pag_agno(cur->bc_ag.pag); default: ASSERT(0); return 0; @@ -4742,7 +4742,7 @@ xfs_btree_agblock_v5hdr_verify( return __this_address; if (block->bb_u.s.bb_blkno != cpu_to_be64(xfs_buf_daddr(bp))) return __this_address; - if (pag && be32_to_cpu(block->bb_u.s.bb_owner) != pag->pag_agno) + if (pag && be32_to_cpu(block->bb_u.s.bb_owner) != pag_agno(pag)) return __this_address; return NULL; } diff --git a/libxfs/xfs_group.c b/libxfs/xfs_group.c new file mode 100644 index 00000000000000..8a67148362b0d7 --- /dev/null +++ b/libxfs/xfs_group.c @@ -0,0 +1,168 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018 Red Hat, Inc. + */ + +#include "libxfs_priv.h" +#include "xfs_shared.h" +#include "xfs_format.h" +#include "xfs_trans_resv.h" +#include "xfs_mount.h" +#include "xfs_trace.h" +#include "xfs_group.h" + +/* + * Groups can have passive and active references. + * + * For passive references the code freeing a group is responsible for cleaning + * up objects that hold the passive references (e.g. cached buffers). + * Routines manipulating passive references are xfs_group_get, xfs_group_hold + * and xfs_group_put. + * + * Active references are for short term access to the group for walking trees or + * accessing state. If a group is being shrunk or offlined, the lookup will fail + * to find that group and return NULL instead. + * Routines manipulating active references are xfs_group_grab and + * xfs_group_rele. + */ + +struct xfs_group * +xfs_group_get( + struct xfs_mount *mp, + uint32_t index, + enum xfs_group_type type) +{ + struct xfs_group *xg; + + rcu_read_lock(); + xg = xa_load(&mp->m_groups[type].xa, index); + if (xg) { + trace_xfs_group_get(xg, _RET_IP_); + ASSERT(atomic_read(&xg->xg_ref) >= 0); + atomic_inc(&xg->xg_ref); + } + rcu_read_unlock(); + return xg; +} + +struct xfs_group * +xfs_group_hold( + struct xfs_group *xg) +{ + ASSERT(atomic_read(&xg->xg_ref) > 0 || + atomic_read(&xg->xg_active_ref) > 0); + + trace_xfs_group_hold(xg, _RET_IP_); + atomic_inc(&xg->xg_ref); + return xg; +} + +void +xfs_group_put( + struct xfs_group *xg) +{ + trace_xfs_group_put(xg, _RET_IP_); + + ASSERT(atomic_read(&xg->xg_ref) > 0); + atomic_dec(&xg->xg_ref); +} + +struct xfs_group * +xfs_group_grab( + struct xfs_mount *mp, + uint32_t index, + enum xfs_group_type type) +{ + struct xfs_group *xg; + + rcu_read_lock(); + xg = xa_load(&mp->m_groups[type].xa, index); + if (xg) { + trace_xfs_group_grab(xg, _RET_IP_); + if (!atomic_inc_not_zero(&xg->xg_active_ref)) + xg = NULL; + } + rcu_read_unlock(); + return xg; +} + +/* + * Find the next group after @xg, or the first group if @xg is NULL. + */ +struct xfs_group * +xfs_group_grab_next_mark( + struct xfs_mount *mp, + struct xfs_group *xg, + xa_mark_t mark, + enum xfs_group_type type) +{ + unsigned long index = 0; + + if (xg) { + index = xg->xg_gno + 1; + xfs_group_rele(xg); + } + + rcu_read_lock(); + xg = xa_find(&mp->m_groups[type].xa, &index, ULONG_MAX, mark); + if (xg) { + trace_xfs_group_grab_next_tag(xg, _RET_IP_); + if (!atomic_inc_not_zero(&xg->xg_active_ref)) + xg = NULL; + } + rcu_read_unlock(); + return xg; +} + +void +xfs_group_rele( + struct xfs_group *xg) +{ + trace_xfs_group_rele(xg, _RET_IP_); + atomic_dec(&xg->xg_active_ref); +} + +void +xfs_group_free( + struct xfs_mount *mp, + uint32_t index, + enum xfs_group_type type, + void (*uninit)(struct xfs_group *xg)) +{ + struct xfs_group *xg = xa_erase(&mp->m_groups[type].xa, index); + + XFS_IS_CORRUPT(mp, atomic_read(&xg->xg_ref) != 0); + + if (uninit) + uninit(xg); + + /* drop the mount's active reference */ + xfs_group_rele(xg); + XFS_IS_CORRUPT(mp, atomic_read(&xg->xg_active_ref) != 0); + kfree_rcu_mightsleep(xg); +} + +int +xfs_group_insert( + struct xfs_mount *mp, + struct xfs_group *xg, + uint32_t index, + enum xfs_group_type type) +{ + int error; + + xg->xg_mount = mp; + xg->xg_gno = index; + xg->xg_type = type; + + /* Active ref owned by mount indicates group is online. */ + atomic_set(&xg->xg_active_ref, 1); + + error = xa_insert(&mp->m_groups[type].xa, index, xg, GFP_KERNEL); + if (error) { + WARN_ON_ONCE(error == -EBUSY); + return error; + } + + return 0; +} diff --git a/libxfs/xfs_group.h b/libxfs/xfs_group.h new file mode 100644 index 00000000000000..e3b6be7ff9e802 --- /dev/null +++ b/libxfs/xfs_group.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2018 Red Hat, Inc. + */ +#ifndef __LIBXFS_GROUP_H +#define __LIBXFS_GROUP_H 1 + +struct xfs_group { + struct xfs_mount *xg_mount; + uint32_t xg_gno; + enum xfs_group_type xg_type; + atomic_t xg_ref; /* passive reference count */ + atomic_t xg_active_ref; /* active reference count */ +}; + +struct xfs_group *xfs_group_get(struct xfs_mount *mp, uint32_t index, + enum xfs_group_type type); +struct xfs_group *xfs_group_hold(struct xfs_group *xg); +void xfs_group_put(struct xfs_group *xg); + +struct xfs_group *xfs_group_grab(struct xfs_mount *mp, uint32_t index, + enum xfs_group_type type); +struct xfs_group *xfs_group_grab_next_mark(struct xfs_mount *mp, + struct xfs_group *xg, xa_mark_t mark, enum xfs_group_type type); +void xfs_group_rele(struct xfs_group *xg); + +void xfs_group_free(struct xfs_mount *mp, uint32_t index, + enum xfs_group_type type, void (*uninit)(struct xfs_group *xg)); +int xfs_group_insert(struct xfs_mount *mp, struct xfs_group *xg, + uint32_t index, enum xfs_group_type); + +#define xfs_group_set_mark(_xg, _mark) \ + xa_set_mark(&(_xg)->xg_mount->m_groups[(_xg)->xg_type].xa, \ + (_xg)->xg_gno, (_mark)) +#define xfs_group_clear_mark(_xg, _mark) \ + xa_clear_mark(&(_xg)->xg_mount->m_groups[(_xg)->xg_type].xa, \ + (_xg)->xg_gno, (_mark)) +#define xfs_group_marked(_mp, _type, _mark) \ + xa_marked(&(_mp)->m_groups[(_type)].xa, (_mark)) + +#endif /* __LIBXFS_GROUP_H */ diff --git a/libxfs/xfs_ialloc.c b/libxfs/xfs_ialloc.c index 4f087e6b074081..e4b9d3e2fbb5ce 100644 --- a/libxfs/xfs_ialloc.c +++ b/libxfs/xfs_ialloc.c @@ -137,7 +137,7 @@ xfs_inobt_complain_bad_rec( xfs_warn(mp, "%sbt record corruption in AG %d detected at %pS!", - cur->bc_ops->name, cur->bc_ag.pag->pag_agno, fa); + cur->bc_ops->name, pag_agno(cur->bc_ag.pag), fa); xfs_warn(mp, "start inode 0x%x, count 0x%x, free 0x%x freemask 0x%llx, holemask 0x%x", irec->ir_startino, irec->ir_count, irec->ir_freecount, @@ -546,7 +546,7 @@ xfs_inobt_insert_sprec( struct xfs_buf *agbp, struct xfs_inobt_rec_incore *nrec) /* in/out: new/merged rec. */ { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_btree_cur *cur; int error; int i; @@ -640,7 +640,7 @@ xfs_finobt_insert_sprec( struct xfs_buf *agbp, struct xfs_inobt_rec_incore *nrec) /* in/out: new rec. */ { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_btree_cur *cur; int error; int i; @@ -875,7 +875,7 @@ xfs_ialloc_ag_alloc( * rather than a linear progression to prevent the next generation * number from being easily guessable. */ - error = xfs_ialloc_inode_init(args.mp, tp, NULL, newlen, pag->pag_agno, + error = xfs_ialloc_inode_init(args.mp, tp, NULL, newlen, pag_agno(pag), args.agbno, args.len, get_random_u32()); if (error) @@ -1066,7 +1066,7 @@ xfs_dialloc_check_ino( if (error) return -EAGAIN; - error = xfs_imap_to_bp(pag->pag_mount, tp, &imap, &bp); + error = xfs_imap_to_bp(pag_mount(pag), tp, &imap, &bp); if (error) return -EAGAIN; @@ -1117,7 +1117,7 @@ xfs_dialloc_ag_inobt( /* * If in the same AG as the parent, try to get near the parent. */ - if (pagno == pag->pag_agno) { + if (pagno == pag_agno(pag)) { int doneleft; /* done, to the left */ int doneright; /* done, to the right */ @@ -1594,7 +1594,7 @@ xfs_dialloc_ag( * parent. If so, find the closest available inode to the parent. If * not, consider the agi hint or find the first free inode in the AG. */ - if (pag->pag_agno == pagno) + if (pag_agno(pag) == pagno) error = xfs_dialloc_ag_finobt_near(pagino, &cur, &rec); else error = xfs_dialloc_ag_finobt_newino(agi, cur, &rec); @@ -2048,7 +2048,7 @@ xfs_difree_inobt( struct xfs_icluster *xic, struct xfs_inobt_rec_incore *orec) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_agi *agi = agbp->b_addr; struct xfs_btree_cur *cur; struct xfs_inobt_rec_incore rec; @@ -2182,7 +2182,7 @@ xfs_difree_finobt( xfs_agino_t agino, struct xfs_inobt_rec_incore *ibtrec) /* inobt record */ { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_btree_cur *cur; struct xfs_inobt_rec_incore rec; int offset = agino - ibtrec->ir_startino; @@ -2305,9 +2305,9 @@ xfs_difree( /* * Break up inode number into its components. */ - if (pag->pag_agno != XFS_INO_TO_AGNO(mp, inode)) { - xfs_warn(mp, "%s: agno != pag->pag_agno (%d != %d).", - __func__, XFS_INO_TO_AGNO(mp, inode), pag->pag_agno); + if (pag_agno(pag) != XFS_INO_TO_AGNO(mp, inode)) { + xfs_warn(mp, "%s: agno != pag_agno(pag) (%d != %d).", + __func__, XFS_INO_TO_AGNO(mp, inode), pag_agno(pag)); ASSERT(0); return -EINVAL; } @@ -2368,7 +2368,7 @@ xfs_imap_lookup( xfs_agblock_t *offset_agbno, int flags) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_inobt_rec_incore rec; struct xfs_btree_cur *cur; struct xfs_buf *agbp; @@ -2379,7 +2379,7 @@ xfs_imap_lookup( if (error) { xfs_alert(mp, "%s: xfs_ialloc_read_agi() returned error %d, agno %d", - __func__, error, pag->pag_agno); + __func__, error, pag_agno(pag)); return error; } @@ -2429,7 +2429,7 @@ xfs_imap( struct xfs_imap *imap, /* location map structure */ uint flags) /* flags for inode btree lookup */ { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); xfs_agblock_t agbno; /* block number of inode in the alloc group */ xfs_agino_t agino; /* inode number within alloc group */ xfs_agblock_t chunk_agbno; /* first block in inode chunk */ @@ -2721,13 +2721,13 @@ xfs_read_agi( xfs_buf_flags_t flags, struct xfs_buf **agibpp) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); int error; trace_xfs_read_agi(pag); error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, - XFS_AG_DADDR(mp, pag->pag_agno, XFS_AGI_DADDR(mp)), + XFS_AG_DADDR(mp, pag_agno(pag), XFS_AGI_DADDR(mp)), XFS_FSS_TO_BB(mp, 1), flags, agibpp, &xfs_agi_buf_ops); if (xfs_metadata_is_sick(error)) xfs_ag_mark_sick(pag, XFS_SICK_AG_AGI); @@ -2775,7 +2775,7 @@ xfs_ialloc_read_agi( * we are in the middle of a forced shutdown. */ ASSERT(pag->pagi_freecount == be32_to_cpu(agi->agi_freecount) || - xfs_is_shutdown(pag->pag_mount)); + xfs_is_shutdown(pag_mount(pag))); if (agibpp) *agibpp = agibp; else @@ -3114,13 +3114,13 @@ xfs_ialloc_check_shrink( int has; int error; - if (!xfs_has_sparseinodes(pag->pag_mount)) + if (!xfs_has_sparseinodes(pag_mount(pag))) return 0; cur = xfs_inobt_init_cursor(pag, tp, agibp); /* Look up the inobt record that would correspond to the new EOFS. */ - agino = XFS_AGB_TO_AGINO(pag->pag_mount, new_length); + agino = XFS_AGB_TO_AGINO(pag_mount(pag), new_length); error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &has); if (error || !has) goto out; diff --git a/libxfs/xfs_ialloc_btree.c b/libxfs/xfs_ialloc_btree.c index f80368b4d5fa5f..45908cce464dff 100644 --- a/libxfs/xfs_ialloc_btree.c +++ b/libxfs/xfs_ialloc_btree.c @@ -247,7 +247,7 @@ xfs_inobt_init_ptr_from_cur( { struct xfs_agi *agi = cur->bc_ag.agbp->b_addr; - ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agi->agi_seqno)); + ASSERT(pag_agno(cur->bc_ag.pag) == be32_to_cpu(agi->agi_seqno)); ptr->s = agi->agi_root; } @@ -259,7 +259,7 @@ xfs_finobt_init_ptr_from_cur( { struct xfs_agi *agi = cur->bc_ag.agbp->b_addr; - ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agi->agi_seqno)); + ASSERT(pag_agno(cur->bc_ag.pag) == be32_to_cpu(agi->agi_seqno)); ptr->s = agi->agi_free_root; } @@ -477,7 +477,7 @@ xfs_inobt_init_cursor( struct xfs_trans *tp, struct xfs_buf *agbp) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_btree_cur *cur; cur = xfs_btree_alloc_cursor(mp, tp, &xfs_inobt_ops, @@ -503,7 +503,7 @@ xfs_finobt_init_cursor( struct xfs_trans *tp, struct xfs_buf *agbp) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_btree_cur *cur; cur = xfs_btree_alloc_cursor(mp, tp, &xfs_finobt_ops, @@ -714,7 +714,7 @@ static xfs_extlen_t xfs_inobt_max_size( struct xfs_perag *pag) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); xfs_agblock_t agblocks = pag->block_count; /* Bail out if we're uninitialized, which can happen in mkfs. */ @@ -726,7 +726,7 @@ xfs_inobt_max_size( * never be available for the kinds of things that would require btree * expansion. We therefore can pretend the space isn't there. */ - if (xfs_ag_contains_log(mp, pag->pag_agno)) + if (xfs_ag_contains_log(mp, pag_agno(pag))) agblocks -= mp->m_sb.sb_logblocks; return xfs_btree_calc_size(M_IGEO(mp)->inobt_mnr, @@ -790,10 +790,10 @@ xfs_finobt_calc_reserves( xfs_extlen_t tree_len = 0; int error; - if (!xfs_has_finobt(pag->pag_mount)) + if (!xfs_has_finobt(pag_mount(pag))) return 0; - if (xfs_has_inobtcounts(pag->pag_mount)) + if (xfs_has_inobtcounts(pag_mount(pag))) error = xfs_finobt_read_blocks(pag, tp, &tree_len); else error = xfs_finobt_count_blocks(pag, tp, &tree_len); diff --git a/libxfs/xfs_refcount.c b/libxfs/xfs_refcount.c index eeddec68a08539..9507cf74578d4f 100644 --- a/libxfs/xfs_refcount.c +++ b/libxfs/xfs_refcount.c @@ -153,7 +153,7 @@ xfs_refcount_complain_bad_rec( xfs_warn(mp, "Refcount BTree record corruption in AG %d detected at %pS!", - cur->bc_ag.pag->pag_agno, fa); + pag_agno(cur->bc_ag.pag), fa); xfs_warn(mp, "Start block 0x%x, block count 0x%x, references 0x%x", irec->rc_startblock, irec->rc_blockcount, irec->rc_refcount); @@ -1320,7 +1320,7 @@ xfs_refcount_continue_op( ri->ri_startblock = xfs_agbno_to_fsb(pag, new_agbno); ASSERT(xfs_verify_fsbext(mp, ri->ri_startblock, ri->ri_blockcount)); - ASSERT(pag->pag_agno == XFS_FSB_TO_AGNO(mp, ri->ri_startblock)); + ASSERT(pag_agno(pag) == XFS_FSB_TO_AGNO(mp, ri->ri_startblock)); return 0; } diff --git a/libxfs/xfs_refcount_btree.c b/libxfs/xfs_refcount_btree.c index 5913f4176889ea..e9c4fc419a6114 100644 --- a/libxfs/xfs_refcount_btree.c +++ b/libxfs/xfs_refcount_btree.c @@ -80,7 +80,7 @@ xfs_refcountbt_alloc_block( *stat = 0; return 0; } - ASSERT(args.agno == cur->bc_ag.pag->pag_agno); + ASSERT(args.agno == pag_agno(cur->bc_ag.pag)); ASSERT(args.len == 1); new->s = cpu_to_be32(args.agbno); @@ -168,7 +168,7 @@ xfs_refcountbt_init_ptr_from_cur( { struct xfs_agf *agf = cur->bc_ag.agbp->b_addr; - ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno)); + ASSERT(pag_agno(cur->bc_ag.pag) == be32_to_cpu(agf->agf_seqno)); ptr->s = agf->agf_refcount_root; } @@ -360,7 +360,7 @@ xfs_refcountbt_init_cursor( { struct xfs_btree_cur *cur; - ASSERT(pag->pag_agno < mp->m_sb.sb_agcount); + ASSERT(pag_agno(pag) < mp->m_sb.sb_agcount); cur = xfs_btree_alloc_cursor(mp, tp, &xfs_refcountbt_ops, mp->m_refc_maxlevels, xfs_refcountbt_cur_cache); @@ -513,7 +513,7 @@ xfs_refcountbt_calc_reserves( * never be available for the kinds of things that would require btree * expansion. We therefore can pretend the space isn't there. */ - if (xfs_ag_contains_log(mp, pag->pag_agno)) + if (xfs_ag_contains_log(mp, pag_agno(pag))) agblocks -= mp->m_sb.sb_logblocks; *ask += xfs_refcountbt_max_size(mp, agblocks); diff --git a/libxfs/xfs_rmap.c b/libxfs/xfs_rmap.c index 22947e3c9ae310..0f7dee40bda87a 100644 --- a/libxfs/xfs_rmap.c +++ b/libxfs/xfs_rmap.c @@ -212,7 +212,7 @@ xfs_rmap_check_irec( struct xfs_perag *pag, const struct xfs_rmap_irec *irec) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); bool is_inode; bool is_unwritten; bool is_bmbt; @@ -287,7 +287,7 @@ xfs_rmap_complain_bad_rec( else xfs_warn(mp, "Reverse Mapping BTree record corruption in AG %d detected at %pS!", - cur->bc_ag.pag->pag_agno, fa); + pag_agno(cur->bc_ag.pag), fa); xfs_warn(mp, "Owner 0x%llx, flags 0x%x, start block 0x%x block count 0x%x", irec->rm_owner, irec->rm_flags, irec->rm_startblock, diff --git a/libxfs/xfs_rmap_btree.c b/libxfs/xfs_rmap_btree.c index c261d6eae3bc3b..ebb2519cf8baf3 100644 --- a/libxfs/xfs_rmap_btree.c +++ b/libxfs/xfs_rmap_btree.c @@ -226,7 +226,7 @@ xfs_rmapbt_init_ptr_from_cur( { struct xfs_agf *agf = cur->bc_ag.agbp->b_addr; - ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno)); + ASSERT(pag_agno(cur->bc_ag.pag) == be32_to_cpu(agf->agf_seqno)); ptr->s = agf->agf_rmap_root; } @@ -646,9 +646,8 @@ xfs_rmapbt_mem_cursor( struct xfbtree *xfbt) { struct xfs_btree_cur *cur; - struct xfs_mount *mp = pag->pag_mount; - cur = xfs_btree_alloc_cursor(mp, tp, &xfs_rmapbt_mem_ops, + cur = xfs_btree_alloc_cursor(pag_mount(pag), tp, &xfs_rmapbt_mem_ops, xfs_rmapbt_maxlevels_ondisk(), xfs_rmapbt_cur_cache); cur->bc_mem.xfbtree = xfbt; cur->bc_nlevels = xfbt->nlevels; @@ -862,7 +861,7 @@ xfs_rmapbt_calc_reserves( * never be available for the kinds of things that would require btree * expansion. We therefore can pretend the space isn't there. */ - if (xfs_ag_contains_log(mp, pag->pag_agno)) + if (xfs_ag_contains_log(mp, pag_agno(pag))) agblocks -= mp->m_sb.sb_logblocks; /* Reserve 1% of the AG or enough for 1 block per record. */ diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c index 0d98b8a344209e..f534ae5d4c4db2 100644 --- a/libxfs/xfs_sb.c +++ b/libxfs/xfs_sb.c @@ -1131,7 +1131,7 @@ xfs_update_secondary_sbs( struct xfs_buf *bp; error = xfs_buf_get(mp->m_ddev_targp, - XFS_AG_DADDR(mp, pag->pag_agno, XFS_SB_DADDR), + XFS_AG_DADDR(mp, pag_agno(pag), XFS_SB_DADDR), XFS_FSS_TO_BB(mp, 1), &bp); /* * If we get an error reading or writing alternate superblocks, @@ -1143,7 +1143,7 @@ xfs_update_secondary_sbs( if (error) { xfs_warn(mp, "error allocating secondary superblock for ag %d", - pag->pag_agno); + pag_agno(pag)); if (!saved_error) saved_error = error; continue; @@ -1164,7 +1164,7 @@ xfs_update_secondary_sbs( if (error) { xfs_warn(mp, "write error %d updating a secondary superblock near ag %d", - error, pag->pag_agno); + error, pag_agno(pag)); if (!saved_error) saved_error = error; continue; diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h index a8cd44d03ef648..d3cb6ff3b91301 100644 --- a/libxfs/xfs_types.h +++ b/libxfs/xfs_types.h @@ -212,6 +212,14 @@ enum xbtree_recpacking { XBTREE_RECPACKING_FULL, }; +enum xfs_group_type { + XG_TYPE_AG, + XG_TYPE_MAX, +} __packed; + +#define XG_TYPE_STRINGS \ + { XG_TYPE_AG, "ag" } + /* * Type verifier functions */ diff --git a/repair/agbtree.c b/repair/agbtree.c index c8f75f49e6b363..67baa1acba9907 100644 --- a/repair/agbtree.c +++ b/repair/agbtree.c @@ -166,8 +166,7 @@ finish_rebuild( if (resv->used == resv->len) continue; - fsbno = XFS_AGB_TO_FSB(mp, resv->pag->pag_agno, - resv->agbno + resv->used); + fsbno = xfs_agbno_to_fsb(resv->pag, resv->agbno + resv->used); error = bitmap_set(lost_blocks, fsbno, resv->len - resv->used); if (error) do_error( @@ -203,7 +202,7 @@ get_bno_rec( struct xfs_btree_cur *cur, struct extent_tree_node *prev_value) { - xfs_agnumber_t agno = cur->bc_ag.pag->pag_agno; + xfs_agnumber_t agno = pag_agno(cur->bc_ag.pag); if (xfs_btree_is_bno(cur->bc_ops)) { if (!prev_value) @@ -254,7 +253,7 @@ init_freespace_cursors( struct bt_rebuild *btr_bno, struct bt_rebuild *btr_cnt) { - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); unsigned int agfl_goal; int error; @@ -377,7 +376,7 @@ get_ino_rec( struct xfs_btree_cur *cur, struct ino_tree_node *prev_value) { - xfs_agnumber_t agno = cur->bc_ag.pag->pag_agno; + xfs_agnumber_t agno = pag_agno(cur->bc_ag.pag); if (xfs_btree_is_ino(cur->bc_ops)) { if (!prev_value) @@ -482,7 +481,7 @@ init_ino_cursors( struct bt_rebuild *btr_fino) { struct ino_tree_node *ino_rec; - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); unsigned int ino_recs = 0; unsigned int fino_recs = 0; bool finobt; @@ -615,7 +614,7 @@ get_rmapbt_records( if (ret == 0) do_error( _("ran out of records while rebuilding AG %u rmap btree\n"), - cur->bc_ag.pag->pag_agno); + pag_agno(cur->bc_ag.pag)); block_rec = libxfs_btree_rec_addr(cur, idx, block); cur->bc_ops->init_rec_from_cur(cur, block_rec); @@ -632,7 +631,7 @@ init_rmapbt_cursor( unsigned int est_agfreeblocks, struct bt_rebuild *btr) { - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); int error; if (!xfs_has_rmapbt(sc->mp)) @@ -715,7 +714,7 @@ init_refc_cursor( unsigned int est_agfreeblocks, struct bt_rebuild *btr) { - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); int error; if (!xfs_has_reflink(sc->mp)) @@ -769,7 +768,7 @@ estimate_allocbt_blocks( unsigned int nr_extents) { /* Account for space consumed by both free space btrees */ - return libxfs_allocbt_calc_size(pag->pag_mount, nr_extents) * 2; + return libxfs_allocbt_calc_size(pag_mount(pag), nr_extents) * 2; } static xfs_extlen_t @@ -777,7 +776,7 @@ estimate_inobt_blocks( struct xfs_perag *pag) { struct ino_tree_node *ino_rec; - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); unsigned int ino_recs = 0; unsigned int fino_recs = 0; xfs_extlen_t ret; @@ -807,9 +806,9 @@ estimate_inobt_blocks( fino_recs++; } - ret = libxfs_iallocbt_calc_size(pag->pag_mount, ino_recs); - if (xfs_has_finobt(pag->pag_mount)) - ret += libxfs_iallocbt_calc_size(pag->pag_mount, fino_recs); + ret = libxfs_iallocbt_calc_size(pag_mount(pag), ino_recs); + if (xfs_has_finobt(pag_mount(pag))) + ret += libxfs_iallocbt_calc_size(pag_mount(pag), fino_recs); return ret; } diff --git a/repair/bmap_repair.c b/repair/bmap_repair.c index b341caf627d5fd..7ccbb96fa8dc5e 100644 --- a/repair/bmap_repair.c +++ b/repair/bmap_repair.c @@ -129,7 +129,6 @@ xrep_bmap_walk_rmap( void *priv) { struct xrep_bmap *rb = priv; - struct xfs_mount *mp = cur->bc_mp; xfs_fsblock_t fsbno; int error; @@ -155,8 +154,7 @@ xrep_bmap_walk_rmap( !(rec->rm_flags & XFS_RMAP_ATTR_FORK)) return 0; - fsbno = XFS_AGB_TO_FSB(mp, cur->bc_ag.pag->pag_agno, - rec->rm_startblock); + fsbno = xfs_agbno_to_fsb(cur->bc_ag.pag, rec->rm_startblock); if (rec->rm_flags & XFS_RMAP_BMBT_BLOCK) { rb->old_bmbt_block_count += rec->rm_blockcount; diff --git a/repair/bulkload.c b/repair/bulkload.c index c96e569ef2979e..aada5bbae579f8 100644 --- a/repair/bulkload.c +++ b/repair/bulkload.c @@ -74,11 +74,10 @@ bulkload_add_extent( xfs_agblock_t agbno, xfs_extlen_t len) { - struct xfs_mount *mp = bkl->sc->mp; struct xfs_alloc_arg args = { .tp = NULL, /* no autoreap */ .oinfo = bkl->oinfo, - .fsbno = XFS_AGB_TO_FSB(mp, pag->pag_agno, agbno), + .fsbno = xfs_agbno_to_fsb(pag, agbno), .len = len, .resv = XFS_AG_RESV_NONE, }; @@ -194,7 +193,7 @@ bulkload_free_extent( * Use EFIs to free the reservations. We don't need to use EFIs here * like the kernel, but we'll do it to keep the code matched. */ - fsbno = XFS_AGB_TO_FSB(sc->mp, resv->pag->pag_agno, free_agbno); + fsbno = xfs_agbno_to_fsb(resv->pag, free_agbno); error = -libxfs_free_extent_later(sc->tp, fsbno, free_aglen, &bkl->oinfo, XFS_AG_RESV_NONE, XFS_FREE_EXTENT_SKIP_DISCARD); @@ -290,7 +289,6 @@ bulkload_claim_block( union xfs_btree_ptr *ptr) { struct bulkload_resv *resv; - struct xfs_mount *mp = cur->bc_mp; xfs_agblock_t agbno; /* @@ -316,8 +314,7 @@ bulkload_claim_block( list_move_tail(&resv->list, &bkl->resv_list); if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) - ptr->l = cpu_to_be64(XFS_AGB_TO_FSB(mp, resv->pag->pag_agno, - agbno)); + ptr->l = cpu_to_be64(xfs_agbno_to_fsb(resv->pag, agbno)); else ptr->s = cpu_to_be32(agbno); return 0; diff --git a/repair/phase2.c b/repair/phase2.c index e50cd3f8c2759d..42a2861dcc3714 100644 --- a/repair/phase2.c +++ b/repair/phase2.c @@ -304,13 +304,13 @@ check_fs_free_space( if (error) do_error( _("Cannot read AGI %u for upgrade check, err=%d.\n"), - pag->pag_agno, error); + pag_agno(pag), error); error = -libxfs_alloc_read_agf(pag, tp, 0, &agf_bp); if (error) do_error( _("Cannot read AGF %u for upgrade check, err=%d.\n"), - pag->pag_agno, error); + pag_agno(pag), error); agf = agf_bp->b_addr; agblocks = be32_to_cpu(agf->agf_length); @@ -326,13 +326,13 @@ check_fs_free_space( if (error == ENOSPC) { printf( _("Not enough free space would remain in AG %u for metadata.\n"), - pag->pag_agno); + pag_agno(pag)); exit(1); } if (error) do_error( _("Error %d while checking AG %u space reservation.\n"), - error, pag->pag_agno); + error, pag_agno(pag)); /* * Would the post-upgrade filesystem have enough free space in @@ -345,7 +345,7 @@ check_fs_free_space( if (!check_free_space(mp, avail, agblocks)) { printf( _("AG %u will be low on space after upgrade.\n"), - pag->pag_agno); + pag_agno(pag)); exit(1); } libxfs_trans_cancel(tp); diff --git a/repair/phase5.c b/repair/phase5.c index 9207da7172c05b..fdbd9f56998fb4 100644 --- a/repair/phase5.c +++ b/repair/phase5.c @@ -441,7 +441,7 @@ phase5_func( struct bt_rebuild btr_fino; struct bt_rebuild btr_rmap; struct bt_rebuild btr_refc; - xfs_agnumber_t agno = pag->pag_agno; + xfs_agnumber_t agno = pag_agno(pag); int extra_blocks = 0; uint num_freeblocks; xfs_agblock_t num_extents; diff --git a/repair/rmap.c b/repair/rmap.c index 553c7a6c3658a0..29af74eee11831 100644 --- a/repair/rmap.c +++ b/repair/rmap.c @@ -1694,7 +1694,7 @@ xfs_extlen_t estimate_rmapbt_blocks( struct xfs_perag *pag) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_ag_rmap *x; unsigned long long nr_recs = 0; @@ -1707,12 +1707,12 @@ estimate_rmapbt_blocks( * means we can use SEEK_DATA/HOLE on the xfile, which is faster than * walking the entire btree to count records. */ - x = &ag_rmaps[pag->pag_agno]; + x = &ag_rmaps[pag_agno(pag)]; if (!rmaps_has_observations(x)) return 0; nr_recs = xmbuf_bytes(x->ar_xmbtp) / sizeof(struct xfs_rmap_rec); - return libxfs_rmapbt_calc_size(pag->pag_mount, nr_recs); + return libxfs_rmapbt_calc_size(pag_mount(pag), nr_recs); } /* Estimate the size of the ondisk refcountbt from the incore data. */ @@ -1720,13 +1720,13 @@ xfs_extlen_t estimate_refcountbt_blocks( struct xfs_perag *pag) { - struct xfs_mount *mp = pag->pag_mount; + struct xfs_mount *mp = pag_mount(pag); struct xfs_ag_rmap *x; if (!rmap_needs_work(mp) || !xfs_has_reflink(mp)) return 0; - x = &ag_rmaps[pag->pag_agno]; + x = &ag_rmaps[pag_agno(pag)]; if (!x->ar_refcount_items) return 0;