From 5ba30919a6fcf0d3d52507082ea67fab32c8bb29 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 8 Nov 2019 14:57:52 -0800 Subject: [PATCH] xfs: devirtualize ->free_hdr_from_disk Replace the ->free_hdr_from_disk dir ops method with a directly called xfs_dir_free_hdr_from_disk helper that takes care of the differences between the v4 and v5 on-disk format. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_da_format.c | 30 ----------------------- fs/xfs/libxfs/xfs_dir2.h | 2 -- fs/xfs/libxfs/xfs_dir2_leaf.c | 14 +++-------- fs/xfs/libxfs/xfs_dir2_node.c | 46 +++++++++++++++++++++++++++-------- fs/xfs/libxfs/xfs_dir2_priv.h | 5 ++-- fs/xfs/scrub/dir.c | 2 +- 6 files changed, 43 insertions(+), 56 deletions(-) diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c index fe9e20698719..d0e541d9d335 100644 --- a/fs/xfs/libxfs/xfs_da_format.c +++ b/fs/xfs/libxfs/xfs_da_format.c @@ -468,18 +468,6 @@ xfs_dir3_db_to_fdindex(struct xfs_da_geometry *geo, xfs_dir2_db_t db) return db % xfs_dir3_free_max_bests(geo); } -static void -xfs_dir2_free_hdr_from_disk( - struct xfs_dir3_icfree_hdr *to, - struct xfs_dir2_free *from) -{ - to->magic = be32_to_cpu(from->hdr.magic); - to->firstdb = be32_to_cpu(from->hdr.firstdb); - to->nvalid = be32_to_cpu(from->hdr.nvalid); - to->nused = be32_to_cpu(from->hdr.nused); - ASSERT(to->magic == XFS_DIR2_FREE_MAGIC); -} - static void xfs_dir2_free_hdr_to_disk( struct xfs_dir2_free *to, @@ -493,21 +481,6 @@ xfs_dir2_free_hdr_to_disk( to->hdr.nused = cpu_to_be32(from->nused); } -static void -xfs_dir3_free_hdr_from_disk( - struct xfs_dir3_icfree_hdr *to, - struct xfs_dir2_free *from) -{ - struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)from; - - to->magic = be32_to_cpu(hdr3->hdr.magic); - to->firstdb = be32_to_cpu(hdr3->firstdb); - to->nvalid = be32_to_cpu(hdr3->nvalid); - to->nused = be32_to_cpu(hdr3->nused); - - ASSERT(to->magic == XFS_DIR3_FREE_MAGIC); -} - static void xfs_dir3_free_hdr_to_disk( struct xfs_dir2_free *to, @@ -555,7 +528,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = { .free_hdr_size = sizeof(struct xfs_dir2_free_hdr), .free_hdr_to_disk = xfs_dir2_free_hdr_to_disk, - .free_hdr_from_disk = xfs_dir2_free_hdr_from_disk, .free_max_bests = xfs_dir2_free_max_bests, .free_bests_p = xfs_dir2_free_bests_p, .db_to_fdb = xfs_dir2_db_to_fdb, @@ -594,7 +566,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = { .free_hdr_size = sizeof(struct xfs_dir2_free_hdr), .free_hdr_to_disk = xfs_dir2_free_hdr_to_disk, - .free_hdr_from_disk = xfs_dir2_free_hdr_from_disk, .free_max_bests = xfs_dir2_free_max_bests, .free_bests_p = xfs_dir2_free_bests_p, .db_to_fdb = xfs_dir2_db_to_fdb, @@ -633,7 +604,6 @@ static const struct xfs_dir_ops xfs_dir3_ops = { .free_hdr_size = sizeof(struct xfs_dir3_free_hdr), .free_hdr_to_disk = xfs_dir3_free_hdr_to_disk, - .free_hdr_from_disk = xfs_dir3_free_hdr_from_disk, .free_max_bests = xfs_dir3_free_max_bests, .free_bests_p = xfs_dir3_free_bests_p, .db_to_fdb = xfs_dir3_db_to_fdb, diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h index ee18fc56a6a1..c3e6a6fb7e37 100644 --- a/fs/xfs/libxfs/xfs_dir2.h +++ b/fs/xfs/libxfs/xfs_dir2.h @@ -75,8 +75,6 @@ struct xfs_dir_ops { int free_hdr_size; void (*free_hdr_to_disk)(struct xfs_dir2_free *to, struct xfs_dir3_icfree_hdr *from); - void (*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to, - struct xfs_dir2_free *from); int (*free_max_bests)(struct xfs_da_geometry *geo); __be16 * (*free_bests_p)(struct xfs_dir2_free *free); xfs_dir2_db_t (*db_to_fdb)(struct xfs_da_geometry *geo, diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c index 7e4e77f2f5b5..b435379ddaa2 100644 --- a/fs/xfs/libxfs/xfs_dir2_leaf.c +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c @@ -113,7 +113,7 @@ xfs_dir3_leaf1_check( } else if (leafhdr.magic != XFS_DIR2_LEAF1_MAGIC) return __this_address; - return xfs_dir3_leaf_check_int(dp->i_mount, dp, &leafhdr, leaf); + return xfs_dir3_leaf_check_int(dp->i_mount, &leafhdr, leaf); } static inline void @@ -138,23 +138,15 @@ xfs_dir3_leaf_check( xfs_failaddr_t xfs_dir3_leaf_check_int( struct xfs_mount *mp, - struct xfs_inode *dp, struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf) { xfs_dir2_leaf_tail_t *ltp; int stale; int i; - const struct xfs_dir_ops *ops; struct xfs_dir3_icleaf_hdr leafhdr; struct xfs_da_geometry *geo = mp->m_dir_geo; - /* - * we can be passed a null dp here from a verifier, so we need to go the - * hard way to get them. - */ - ops = xfs_dir_get_ops(mp, dp); - if (!hdr) { xfs_dir2_leaf_hdr_from_disk(mp, &leafhdr, leaf); hdr = &leafhdr; @@ -208,7 +200,7 @@ xfs_dir3_leaf_verify( if (fa) return fa; - return xfs_dir3_leaf_check_int(mp, NULL, NULL, leaf); + return xfs_dir3_leaf_check_int(mp, NULL, leaf); } static void @@ -1758,7 +1750,7 @@ xfs_dir2_node_to_leaf( if (error) return error; free = fbp->b_addr; - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(mp, &freehdr, free); ASSERT(!freehdr.firstdb); diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 2c44248b7b4a..d337ecd4e3be 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -54,7 +54,7 @@ xfs_dir3_leafn_check( } else if (leafhdr.magic != XFS_DIR2_LEAFN_MAGIC) return __this_address; - return xfs_dir3_leaf_check_int(dp->i_mount, dp, &leafhdr, leaf); + return xfs_dir3_leaf_check_int(dp->i_mount, &leafhdr, leaf); } static inline void @@ -220,6 +220,30 @@ __xfs_dir3_free_read( return 0; } +void +xfs_dir2_free_hdr_from_disk( + struct xfs_mount *mp, + struct xfs_dir3_icfree_hdr *to, + struct xfs_dir2_free *from) +{ + if (xfs_sb_version_hascrc(&mp->m_sb)) { + struct xfs_dir3_free *from3 = (struct xfs_dir3_free *)from; + + to->magic = be32_to_cpu(from3->hdr.hdr.magic); + to->firstdb = be32_to_cpu(from3->hdr.firstdb); + to->nvalid = be32_to_cpu(from3->hdr.nvalid); + to->nused = be32_to_cpu(from3->hdr.nused); + + ASSERT(to->magic == XFS_DIR3_FREE_MAGIC); + } else { + to->magic = be32_to_cpu(from->hdr.magic); + to->firstdb = be32_to_cpu(from->hdr.firstdb); + to->nvalid = be32_to_cpu(from->hdr.nvalid); + to->nused = be32_to_cpu(from->hdr.nused); + ASSERT(to->magic == XFS_DIR2_FREE_MAGIC); + } +} + int xfs_dir2_free_read( struct xfs_trans *tp, @@ -369,7 +393,7 @@ xfs_dir2_leaf_to_node( return error; free = fbp->b_addr; - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(dp->i_mount, &freehdr, free); leaf = lbp->b_addr; ltp = xfs_dir2_leaf_tail_p(args->geo, leaf); if (be32_to_cpu(ltp->bestcount) > @@ -513,7 +537,7 @@ xfs_dir2_free_hdr_check( { struct xfs_dir3_icfree_hdr hdr; - dp->d_ops->free_hdr_from_disk(&hdr, bp->b_addr); + xfs_dir2_free_hdr_from_disk(dp->i_mount, &hdr, bp->b_addr); ASSERT((hdr.firstdb % dp->d_ops->free_max_bests(dp->i_mount->m_dir_geo)) == 0); @@ -1123,7 +1147,7 @@ xfs_dir3_data_block_free( struct xfs_dir3_icfree_hdr freehdr; struct xfs_inode *dp = args->dp; - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(dp->i_mount, &freehdr, free); bests = dp->d_ops->free_bests_p(free); if (hdr) { /* @@ -1292,7 +1316,8 @@ xfs_dir2_leafn_remove( #ifdef DEBUG { struct xfs_dir3_icfree_hdr freehdr; - dp->d_ops->free_hdr_from_disk(&freehdr, free); + + xfs_dir2_free_hdr_from_disk(dp->i_mount, &freehdr, free); ASSERT(freehdr.firstdb == dp->d_ops->free_max_bests(args->geo) * (fdb - xfs_dir2_byte_to_db(args->geo, XFS_DIR2_FREE_OFFSET))); @@ -1686,7 +1711,7 @@ xfs_dir2_node_add_datablk( return error; free = fbp->b_addr; bests = dp->d_ops->free_bests_p(free); - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(mp, &freehdr, free); /* Remember the first slot as our empty slot. */ freehdr.firstdb = (fbno - xfs_dir2_byte_to_db(args->geo, @@ -1695,7 +1720,7 @@ xfs_dir2_node_add_datablk( } else { free = fbp->b_addr; bests = dp->d_ops->free_bests_p(free); - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(mp, &freehdr, free); } /* Set the freespace block index from the data block number. */ @@ -1764,7 +1789,8 @@ xfs_dir2_node_find_freeblk( if (findex >= 0) { /* caller already found the freespace for us. */ bests = dp->d_ops->free_bests_p(free); - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(dp->i_mount, &freehdr, + free); ASSERT(findex < freehdr.nvalid); ASSERT(be16_to_cpu(bests[findex]) != NULLDATAOFF); @@ -1813,7 +1839,7 @@ xfs_dir2_node_find_freeblk( free = fbp->b_addr; bests = dp->d_ops->free_bests_p(free); - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(dp->i_mount, &freehdr, free); /* Scan the free entry array for a large enough free space. */ for (findex = freehdr.nvalid - 1; findex >= 0; findex--) { @@ -2266,7 +2292,7 @@ xfs_dir2_node_trim_free( if (!bp) return 0; free = bp->b_addr; - dp->d_ops->free_hdr_from_disk(&freehdr, free); + xfs_dir2_free_hdr_from_disk(dp->i_mount, &freehdr, free); /* * If there are used entries, there's nothing to do. diff --git a/fs/xfs/libxfs/xfs_dir2_priv.h b/fs/xfs/libxfs/xfs_dir2_priv.h index 1f068812c453..2c3370a3c010 100644 --- a/fs/xfs/libxfs/xfs_dir2_priv.h +++ b/fs/xfs/libxfs/xfs_dir2_priv.h @@ -109,10 +109,11 @@ xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr, extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state); extern xfs_failaddr_t xfs_dir3_leaf_check_int(struct xfs_mount *mp, - struct xfs_inode *dp, struct xfs_dir3_icleaf_hdr *hdr, - struct xfs_dir2_leaf *leaf); + struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf); /* xfs_dir2_node.c */ +void xfs_dir2_free_hdr_from_disk(struct xfs_mount *mp, + struct xfs_dir3_icfree_hdr *to, struct xfs_dir2_free *from); extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args, struct xfs_buf *lbp); extern xfs_dahash_t xfs_dir2_leaf_lasthash(struct xfs_inode *dp, diff --git a/fs/xfs/scrub/dir.c b/fs/xfs/scrub/dir.c index 9aa90ff45c3e..1314a9159156 100644 --- a/fs/xfs/scrub/dir.c +++ b/fs/xfs/scrub/dir.c @@ -603,7 +603,7 @@ xchk_directory_free_bestfree( } /* Check all the entries. */ - sc->ip->d_ops->free_hdr_from_disk(&freehdr, bp->b_addr); + xfs_dir2_free_hdr_from_disk(sc->ip->i_mount, &freehdr, bp->b_addr); bestp = sc->ip->d_ops->free_bests_p(bp->b_addr); for (i = 0; i < freehdr.nvalid; i++, bestp++) { best = be16_to_cpu(*bestp);