diff options
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap_btree.c | 113 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap_btree.h | 8 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_iext_tree.c | 23 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.c | 23 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.h | 4 |
5 files changed, 138 insertions, 33 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c index ffe608d2a2d9..d0ebbd274f69 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.c +++ b/fs/xfs/libxfs/xfs_bmap_btree.c @@ -58,7 +58,7 @@ xfs_bmdr_to_bmbt( void xfs_bmbt_disk_get_all( - struct xfs_bmbt_rec *rec, + const struct xfs_bmbt_rec *rec, struct xfs_bmbt_irec *irec) { uint64_t l0 = get_unaligned_be64(&rec->l0); @@ -300,10 +300,7 @@ xfs_bmbt_get_minrecs( int level) { if (level == cur->bc_nlevels - 1) { - struct xfs_ifork *ifp; - - ifp = XFS_IFORK_PTR(cur->bc_private.b.ip, - cur->bc_private.b.whichfork); + struct xfs_ifork *ifp = xfs_btree_ifork_ptr(cur); return xfs_bmbt_maxrecs(cur->bc_mp, ifp->if_broot_bytes, level == 0) / 2; @@ -318,10 +315,7 @@ xfs_bmbt_get_maxrecs( int level) { if (level == cur->bc_nlevels - 1) { - struct xfs_ifork *ifp; - - ifp = XFS_IFORK_PTR(cur->bc_private.b.ip, - cur->bc_private.b.whichfork); + struct xfs_ifork *ifp = xfs_btree_ifork_ptr(cur); return xfs_bmbt_maxrecs(cur->bc_mp, ifp->if_broot_bytes, level == 0); @@ -541,41 +535,124 @@ static const struct xfs_btree_ops xfs_bmbt_ops = { /* * Allocate a new bmap btree cursor. */ -struct xfs_btree_cur * /* new bmap btree cursor */ -xfs_bmbt_init_cursor( +static struct xfs_btree_cur * /* new bmap btree cursor */ +xfs_bmbt_init_common( struct xfs_mount *mp, /* file system mount point */ struct xfs_trans *tp, /* transaction pointer */ - struct xfs_inode *ip, /* inode owning the btree */ - int whichfork) /* data or attr fork */ + struct xfs_inode *ip) /* inode owning the btree */ { - struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork); struct xfs_btree_cur *cur; - ASSERT(whichfork != XFS_COW_FORK); cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_NOFS); cur->bc_tp = tp; cur->bc_mp = mp; - cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; cur->bc_btnum = XFS_BTNUM_BMAP; cur->bc_blocklog = mp->m_sb.sb_blocklog; cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_bmbt_2); - cur->bc_ops = &xfs_bmbt_ops; cur->bc_flags = XFS_BTREE_LONG_PTRS | XFS_BTREE_ROOT_IN_INODE; if (xfs_sb_version_hascrc(&mp->m_sb)) cur->bc_flags |= XFS_BTREE_CRC_BLOCKS; - cur->bc_private.b.forksize = XFS_IFORK_SIZE(ip, whichfork); cur->bc_private.b.ip = ip; cur->bc_private.b.allocated = 0; cur->bc_private.b.flags = 0; + + return cur; +} + +/* + * Allocate a new bmap btree cursor. + */ +struct xfs_btree_cur * /* new bmap btree cursor */ +xfs_bmbt_init_cursor( + struct xfs_mount *mp, /* file system mount point */ + struct xfs_trans *tp, /* transaction pointer */ + struct xfs_inode *ip, /* inode owning the btree */ + int whichfork) /* data or attr fork */ +{ + struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork); + struct xfs_btree_cur *cur; + ASSERT(whichfork != XFS_COW_FORK); + + cur = xfs_bmbt_init_common(mp, tp, ip); + + cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; + cur->bc_ops = &xfs_bmbt_ops; + cur->bc_private.b.forksize = XFS_IFORK_SIZE(ip, whichfork); cur->bc_private.b.whichfork = whichfork; return cur; } /* + * Allocate a new bmap btree cursor for reloading an inode block mapping data + * structure. Note that callers can use the staged cursor to reload extents + * format inode forks if they rebuild the iext tree and commit the staged + * cursor immediately. + */ +struct xfs_btree_cur * +xfs_bmbt_stage_cursor( + struct xfs_mount *mp, + struct xfs_trans *tp, + struct xfs_inode *ip, + struct xbtree_ifakeroot *ifake) +{ + struct xfs_btree_cur *cur; + struct xfs_btree_ops *ops; + + cur = xfs_bmbt_init_common(mp, tp, ip); + cur->bc_nlevels = ifake->if_levels; + cur->bc_private.b.forksize = ifake->if_fork_size; + cur->bc_private.b.whichfork = -1; + xfs_btree_stage_ifakeroot(cur, ifake, &xfs_bmbt_ops, &ops); + ops->update_cursor = NULL; + return cur; +} + +/* + * Swap in the new inode fork root. Once we pass this point the newly rebuilt + * mappings are in place and we have to kill off any old btree blocks. + */ +void +xfs_bmbt_commit_staged_btree( + struct xfs_btree_cur *cur, + int whichfork) +{ + struct xbtree_ifakeroot *ifake = cur->bc_private.b.ifake; + struct xfs_ifork *ifp; + static const short brootflag[2] = + { XFS_ILOG_DBROOT, XFS_ILOG_ABROOT }; + static const short extflag[2] = + { XFS_ILOG_DEXT, XFS_ILOG_AEXT }; + int flags = XFS_ILOG_CORE; + + ASSERT(cur->bc_flags & XFS_BTREE_STAGING); + ASSERT(whichfork != XFS_COW_FORK); + + ifp = XFS_IFORK_PTR(cur->bc_private.b.ip, whichfork); + xfs_ifork_reset(ifp); + memcpy(ifp, ifake->if_fork, sizeof(struct xfs_ifork)); + + XFS_IFORK_FMT_SET(cur->bc_private.b.ip, whichfork, ifake->if_format); + XFS_IFORK_NEXT_SET(cur->bc_private.b.ip, whichfork, ifake->if_extents); + switch (ifake->if_format) { + case XFS_DINODE_FMT_EXTENTS: + flags |= extflag[whichfork]; + break; + case XFS_DINODE_FMT_BTREE: + flags |= brootflag[whichfork]; + break; + default: + ASSERT(0); + break; + } + xfs_trans_log_inode(cur->bc_tp, cur->bc_private.b.ip, flags); + xfs_btree_commit_ifakeroot(cur, whichfork, &xfs_bmbt_ops); +} + +/* * Calculate number of records in a bmap btree block. */ int diff --git a/fs/xfs/libxfs/xfs_bmap_btree.h b/fs/xfs/libxfs/xfs_bmap_btree.h index 29b407d053b4..0b20736808a3 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.h +++ b/fs/xfs/libxfs/xfs_bmap_btree.h @@ -11,6 +11,7 @@ struct xfs_btree_block; struct xfs_mount; struct xfs_inode; struct xfs_trans; +struct xbtree_ifakeroot; /* * Btree block header size depends on a superblock flag. @@ -90,7 +91,8 @@ extern void xfs_bmdr_to_bmbt(struct xfs_inode *, xfs_bmdr_block_t *, int, void xfs_bmbt_disk_set_all(struct xfs_bmbt_rec *r, struct xfs_bmbt_irec *s); extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r); extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r); -extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); +extern void xfs_bmbt_disk_get_all(const struct xfs_bmbt_rec *r, + struct xfs_bmbt_irec *s); extern void xfs_bmbt_to_bmdr(struct xfs_mount *, struct xfs_btree_block *, int, xfs_bmdr_block_t *, int); @@ -105,6 +107,10 @@ extern int xfs_bmbt_change_owner(struct xfs_trans *tp, struct xfs_inode *ip, extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *, struct xfs_trans *, struct xfs_inode *, int); +struct xfs_btree_cur *xfs_bmbt_stage_cursor(struct xfs_mount *mp, + struct xfs_trans *tp, struct xfs_inode *ip, + struct xbtree_ifakeroot *ifake); +void xfs_bmbt_commit_staged_btree(struct xfs_btree_cur *cur, int whichfork); extern unsigned long long xfs_bmbt_calc_size(struct xfs_mount *mp, unsigned long long len); diff --git a/fs/xfs/libxfs/xfs_iext_tree.c b/fs/xfs/libxfs/xfs_iext_tree.c index 7bc87408f1a0..491d4c3949ed 100644 --- a/fs/xfs/libxfs/xfs_iext_tree.c +++ b/fs/xfs/libxfs/xfs_iext_tree.c @@ -622,13 +622,11 @@ static inline void xfs_iext_inc_seq(struct xfs_ifork *ifp) } void -xfs_iext_insert( - struct xfs_inode *ip, +xfs_iext_insert_raw( + struct xfs_ifork *ifp, struct xfs_iext_cursor *cur, - struct xfs_bmbt_irec *irec, - int state) + struct xfs_bmbt_irec *irec) { - struct xfs_ifork *ifp = xfs_iext_state_to_fork(ip, state); xfs_fileoff_t offset = irec->br_startoff; struct xfs_iext_leaf *new = NULL; int nr_entries, i; @@ -662,12 +660,23 @@ xfs_iext_insert( xfs_iext_set(cur_rec(cur), irec); ifp->if_bytes += sizeof(struct xfs_iext_rec); - trace_xfs_iext_insert(ip, cur, state, _RET_IP_); - if (new) xfs_iext_insert_node(ifp, xfs_iext_leaf_key(new, 0), new, 2); } +void +xfs_iext_insert( + struct xfs_inode *ip, + struct xfs_iext_cursor *cur, + struct xfs_bmbt_irec *irec, + int state) +{ + struct xfs_ifork *ifp = xfs_iext_state_to_fork(ip, state); + + trace_xfs_iext_insert(ip, cur, state, _RET_IP_); + xfs_iext_insert_raw(ifp, cur, irec); +} + static struct xfs_iext_node * xfs_iext_rebalance_node( struct xfs_iext_node *parent, diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c index c643beeb5a24..1f4ea7784254 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.c +++ b/fs/xfs/libxfs/xfs_inode_fork.c @@ -496,14 +496,11 @@ xfs_idata_realloc( ifp->if_bytes = new_size; } +/* Free all memory and reset a fork back to its initial state. */ void -xfs_idestroy_fork( - xfs_inode_t *ip, - int whichfork) +xfs_ifork_reset( + struct xfs_ifork *ifp) { - struct xfs_ifork *ifp; - - ifp = XFS_IFORK_PTR(ip, whichfork); if (ifp->if_broot != NULL) { kmem_free(ifp->if_broot); ifp->if_broot = NULL; @@ -515,7 +512,7 @@ xfs_idestroy_fork( * not local then we may or may not have an extents list, * so check and free it up if we do. */ - if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) { + if (ifp->if_flags & XFS_IFINLINE) { if (ifp->if_u1.if_data != NULL) { kmem_free(ifp->if_u1.if_data); ifp->if_u1.if_data = NULL; @@ -523,6 +520,18 @@ xfs_idestroy_fork( } else if ((ifp->if_flags & XFS_IFEXTENTS) && ifp->if_height) { xfs_iext_destroy(ifp); } + ifp->if_flags = 0; +} + +void +xfs_idestroy_fork( + struct xfs_inode *ip, + int whichfork) +{ + struct xfs_ifork *ifp; + + ifp = XFS_IFORK_PTR(ip, whichfork); + xfs_ifork_reset(ifp); if (whichfork == XFS_ATTR_FORK) { kmem_zone_free(xfs_ifork_zone, ip->i_afp); diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h index 00c62ce170d0..cf6285da3134 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.h +++ b/fs/xfs/libxfs/xfs_inode_fork.h @@ -92,6 +92,7 @@ struct xfs_ifork *xfs_iext_state_to_fork(struct xfs_inode *ip, int state); int xfs_iformat_fork(struct xfs_inode *, struct xfs_dinode *); void xfs_iflush_fork(struct xfs_inode *, struct xfs_dinode *, struct xfs_inode_log_item *, int); +void xfs_ifork_reset(struct xfs_ifork *ifp); void xfs_idestroy_fork(struct xfs_inode *, int); void xfs_idata_realloc(struct xfs_inode *, int, int); void xfs_iroot_realloc(struct xfs_inode *, int, int); @@ -101,6 +102,9 @@ int xfs_iextents_copy(struct xfs_inode *, struct xfs_bmbt_rec *, void xfs_init_local_fork(struct xfs_inode *, int, const void *, int); xfs_extnum_t xfs_iext_count(struct xfs_ifork *ifp); +void xfs_iext_insert_raw(struct xfs_ifork *ifp, + struct xfs_iext_cursor *cur, + struct xfs_bmbt_irec *irec); void xfs_iext_insert(struct xfs_inode *, struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *, int); void xfs_iext_remove(struct xfs_inode *, struct xfs_iext_cursor *, |