xfs: inobt can use perags in many more places than it does

Lots of code in the inobt infrastructure is passed both xfs_mount
and perags. We only need perags for the per-ag inode allocation
code, so reduce the duplication by passing only the perags as the
primary object.

This ends up reducing the code size by a bit:

	   text    data     bss     dec     hex filename
orig	1138878  323979     548 1463405  16546d (TOTALS)
patched	1138709  323979     548 1463236  1653c4 (TOTALS)

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index 5af123d..7fd1fea 100644 (file)
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -264,7 +264,7 @@ xfs_ag_resv_init(
                if (error)
                        goto out;
 
-               error = xfs_finobt_calc_reserves(mp, tp, pag, &ask, &used);
+               error = xfs_finobt_calc_reserves(pag, tp, &ask, &used);
                if (error)
                        goto out;
 

diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 53d6b77..c8b31c0 100644 (file)
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -176,13 +176,12 @@ xfs_inobt_insert(
        xfs_agino_t             newlen,
        xfs_btnum_t             btnum)
 {
-       struct xfs_mount        *mp = pag->pag_mount;
        struct xfs_btree_cur    *cur;
        xfs_agino_t             thisino;
        int                     i;
        int                     error;
 
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, btnum);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, btnum);
 
        for (thisino = newino;
             thisino < newino + newlen;
@@ -527,7 +526,7 @@ xfs_inobt_insert_sprec(
        int                             i;
        struct xfs_inobt_rec_incore     rec;
 
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, btnum);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, btnum);
 
        /* the new record is pre-aligned so we know where to look */
        error = xfs_inobt_lookup(cur, nrec->ir_startino, XFS_LOOKUP_EQ, &i);
@@ -1004,7 +1003,7 @@ xfs_dialloc_ag_inobt(
        ASSERT(pag->pagi_freecount > 0);
 
  restart_pagno:
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_INO);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, XFS_BTNUM_INO);
        /*
         * If pagino is 0 (this is the root inode allocation) use newino.
         * This must work because we've just allocated some.
@@ -1457,7 +1456,7 @@ xfs_dialloc_ag(
        if (!pagino)
                pagino = be32_to_cpu(agi->agi_newino);
 
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_FINO);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, XFS_BTNUM_FINO);
 
        error = xfs_check_agi_freecount(cur);
        if (error)
@@ -1500,7 +1499,7 @@ xfs_dialloc_ag(
         * the original freecount. If all is well, make the equivalent update to
         * the inobt using the finobt record and offset information.
         */
-       icur = xfs_inobt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_INO);
+       icur = xfs_inobt_init_cursor(pag, tp, agbp, XFS_BTNUM_INO);
 
        error = xfs_check_agi_freecount(icur);
        if (error)
@@ -1926,7 +1925,7 @@ xfs_difree_inobt(
        /*
         * Initialize the cursor.
         */
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_INO);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, XFS_BTNUM_INO);
 
        error = xfs_check_agi_freecount(cur);
        if (error)
@@ -2051,7 +2050,7 @@ xfs_difree_finobt(
        int                             error;
        int                             i;
 
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_FINO);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, XFS_BTNUM_FINO);
 
        error = xfs_inobt_lookup(cur, ibtrec->ir_startino, XFS_LOOKUP_EQ, &i);
        if (error)
@@ -2248,7 +2247,7 @@ xfs_imap_lookup(
         * we have a record, we need to ensure it contains the inode number
         * we are looking up.
         */
-       cur = xfs_inobt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_INO);
+       cur = xfs_inobt_init_cursor(pag, tp, agbp, XFS_BTNUM_INO);
        error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i);
        if (!error) {
                if (i)
@@ -2937,17 +2936,17 @@ xfs_ialloc_check_shrink(
 {
        struct xfs_inobt_rec_incore rec;
        struct xfs_btree_cur    *cur;
-       struct xfs_mount        *mp = tp->t_mountp;
-       xfs_agino_t             agino = XFS_AGB_TO_AGINO(mp, new_length);
+       xfs_agino_t             agino;
        int                     has;
        int                     error;
 
-       if (!xfs_has_sparseinodes(mp))
+       if (!xfs_has_sparseinodes(pag->pag_mount))
                return 0;
 
-       cur = xfs_inobt_init_cursor(mp, tp, agibp, pag, XFS_BTNUM_INO);
+       cur = xfs_inobt_init_cursor(pag, tp, agibp, XFS_BTNUM_INO);
 
        /* Look up the inobt record that would correspond to the new EOFS. */
+       agino = XFS_AGB_TO_AGINO(pag->pag_mount, new_length);
        error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &has);
        if (error || !has)
                goto out;

diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 8c83e26..d657af2 100644 (file)
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -36,8 +36,8 @@ STATIC struct xfs_btree_cur *
 xfs_inobt_dup_cursor(
        struct xfs_btree_cur    *cur)
 {
-       return xfs_inobt_init_cursor(cur->bc_mp, cur->bc_tp,
-                       cur->bc_ag.agbp, cur->bc_ag.pag, cur->bc_btnum);
+       return xfs_inobt_init_cursor(cur->bc_ag.pag, cur->bc_tp,
+                       cur->bc_ag.agbp, cur->bc_btnum);
 }
 
 STATIC void
@@ -427,11 +427,11 @@ static const struct xfs_btree_ops xfs_finobt_ops = {
  */
 static struct xfs_btree_cur *
 xfs_inobt_init_common(
-       struct xfs_mount        *mp,            /* file system mount point */
-       struct xfs_trans        *tp,            /* transaction pointer */
        struct xfs_perag        *pag,
+       struct xfs_trans        *tp,            /* transaction pointer */
        xfs_btnum_t             btnum)          /* ialloc or free ino btree */
 {
+       struct xfs_mount        *mp = pag->pag_mount;
        struct xfs_btree_cur    *cur;
 
        cur = xfs_btree_alloc_cursor(mp, tp, btnum,
@@ -456,16 +456,15 @@ xfs_inobt_init_common(
 /* Create an inode btree cursor. */
 struct xfs_btree_cur *
 xfs_inobt_init_cursor(
-       struct xfs_mount        *mp,
+       struct xfs_perag        *pag,
        struct xfs_trans        *tp,
        struct xfs_buf          *agbp,
-       struct xfs_perag        *pag,
        xfs_btnum_t             btnum)
 {
        struct xfs_btree_cur    *cur;
        struct xfs_agi          *agi = agbp->b_addr;
 
-       cur = xfs_inobt_init_common(mp, tp, pag, btnum);
+       cur = xfs_inobt_init_common(pag, tp, btnum);
        if (btnum == XFS_BTNUM_INO)
                cur->bc_nlevels = be32_to_cpu(agi->agi_level);
        else
@@ -477,14 +476,13 @@ xfs_inobt_init_cursor(
 /* Create an inode btree cursor with a fake root for staging. */
 struct xfs_btree_cur *
 xfs_inobt_stage_cursor(
-       struct xfs_mount        *mp,
-       struct xbtree_afakeroot *afake,
        struct xfs_perag        *pag,
+       struct xbtree_afakeroot *afake,
        xfs_btnum_t             btnum)
 {
        struct xfs_btree_cur    *cur;
 
-       cur = xfs_inobt_init_common(mp, NULL, pag, btnum);
+       cur = xfs_inobt_init_common(pag, NULL, btnum);
        xfs_btree_stage_afakeroot(cur, afake);
        return cur;
 }
@@ -708,9 +706,8 @@ xfs_inobt_max_size(
 /* Read AGI and create inobt cursor. */
 int
 xfs_inobt_cur(
-       struct xfs_mount        *mp,
-       struct xfs_trans        *tp,
        struct xfs_perag        *pag,
+       struct xfs_trans        *tp,
        xfs_btnum_t             which,
        struct xfs_btree_cur    **curpp,
        struct xfs_buf          **agi_bpp)
@@ -725,16 +722,15 @@ xfs_inobt_cur(
        if (error)
                return error;
 
-       cur = xfs_inobt_init_cursor(mp, tp, *agi_bpp, pag, which);
+       cur = xfs_inobt_init_cursor(pag, tp, *agi_bpp, which);
        *curpp = cur;
        return 0;
 }
 
 static int
 xfs_inobt_count_blocks(
-       struct xfs_mount        *mp,
-       struct xfs_trans        *tp,
        struct xfs_perag        *pag,
+       struct xfs_trans        *tp,
        xfs_btnum_t             btnum,
        xfs_extlen_t            *tree_blocks)
 {
@@ -742,7 +738,7 @@ xfs_inobt_count_blocks(
        struct xfs_btree_cur    *cur = NULL;
        int                     error;
 
-       error = xfs_inobt_cur(mp, tp, pag, btnum, &cur, &agbp);
+       error = xfs_inobt_cur(pag, tp, btnum, &cur, &agbp);
        if (error)
                return error;
 
@@ -779,22 +775,21 @@ xfs_finobt_read_blocks(
  */
 int
 xfs_finobt_calc_reserves(
-       struct xfs_mount        *mp,
-       struct xfs_trans        *tp,
        struct xfs_perag        *pag,
+       struct xfs_trans        *tp,
        xfs_extlen_t            *ask,
        xfs_extlen_t            *used)
 {
        xfs_extlen_t            tree_len = 0;
        int                     error;
 
-       if (!xfs_has_finobt(mp))
+       if (!xfs_has_finobt(pag->pag_mount))
                return 0;
 
-       if (xfs_has_inobtcounts(mp))
+       if (xfs_has_inobtcounts(pag->pag_mount))
                error = xfs_finobt_read_blocks(pag, tp, &tree_len);
        else
-               error = xfs_inobt_count_blocks(mp, tp, pag, XFS_BTNUM_FINO,
+               error = xfs_inobt_count_blocks(pag, tp, XFS_BTNUM_FINO,
                                &tree_len);
        if (error)
                return error;

diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.h b/fs/xfs/libxfs/xfs_ialloc_btree.h
index 26451cb..e859a6e 100644 (file)
--- a/fs/xfs/libxfs/xfs_ialloc_btree.h
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.h
@@ -46,12 +46,10 @@ struct xfs_perag;
                 (maxrecs) * sizeof(xfs_inobt_key_t) + \
                 ((index) - 1) * sizeof(xfs_inobt_ptr_t)))
 
-extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *mp,
-               struct xfs_trans *tp, struct xfs_buf *agbp,
-               struct xfs_perag *pag, xfs_btnum_t btnum);
-struct xfs_btree_cur *xfs_inobt_stage_cursor(struct xfs_mount *mp,
-               struct xbtree_afakeroot *afake, struct xfs_perag *pag,
-               xfs_btnum_t btnum);
+extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_perag *pag,
+               struct xfs_trans *tp, struct xfs_buf *agbp, xfs_btnum_t btnum);
+struct xfs_btree_cur *xfs_inobt_stage_cursor(struct xfs_perag *pag,
+               struct xbtree_afakeroot *afake, xfs_btnum_t btnum);
 extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int);
 
 /* ir_holemask to inode allocation bitmap conversion */
@@ -64,13 +62,13 @@ int xfs_inobt_rec_check_count(struct xfs_mount *,
 #define xfs_inobt_rec_check_count(mp, rec)     0
 #endif /* DEBUG */
 
-int xfs_finobt_calc_reserves(struct xfs_mount *mp, struct xfs_trans *tp,
-               struct xfs_perag *pag, xfs_extlen_t *ask, xfs_extlen_t *used);
+int xfs_finobt_calc_reserves(struct xfs_perag *perag, struct xfs_trans *tp,
+               xfs_extlen_t *ask, xfs_extlen_t *used);
 extern xfs_extlen_t xfs_iallocbt_calc_size(struct xfs_mount *mp,
                unsigned long long len);
-int xfs_inobt_cur(struct xfs_mount *mp, struct xfs_trans *tp,
-               struct xfs_perag *pag, xfs_btnum_t btnum,
-               struct xfs_btree_cur **curpp, struct xfs_buf **agi_bpp);
+int xfs_inobt_cur(struct xfs_perag *pag, struct xfs_trans *tp,
+               xfs_btnum_t btnum, struct xfs_btree_cur **curpp,
+               struct xfs_buf **agi_bpp);
 
 void xfs_inobt_commit_staged_btree(struct xfs_btree_cur *cur,
                struct xfs_trans *tp, struct xfs_buf *agbp);

diff --git a/fs/xfs/scrub/agheader_repair.c b/fs/xfs/scrub/agheader_repair.c
index d75d821..b80b911 100644 (file)
--- a/fs/xfs/scrub/agheader_repair.c
+++ b/fs/xfs/scrub/agheader_repair.c
@@ -873,8 +873,7 @@ xrep_agi_calc_from_btrees(
        xfs_agino_t             freecount;
        int                     error;
 
-       cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp,
-                       sc->sa.pag, XFS_BTNUM_INO);
+       cur = xfs_inobt_init_cursor(sc->sa.pag, sc->tp, agi_bp, XFS_BTNUM_INO);
        error = xfs_ialloc_count_inodes(cur, &count, &freecount);
        if (error)
                goto err;
@@ -894,8 +893,8 @@ xrep_agi_calc_from_btrees(
        if (xfs_has_finobt(mp) && xfs_has_inobtcounts(mp)) {
                xfs_agblock_t   blocks;
 
-               cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp,
-                               sc->sa.pag, XFS_BTNUM_FINO);
+               cur = xfs_inobt_init_cursor(sc->sa.pag, sc->tp, agi_bp,
+                               XFS_BTNUM_FINO);
                error = xfs_btree_count_blocks(cur, &blocks);
                if (error)
                        goto err;

diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index 033bf67..848a8e3 100644 (file)
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -478,15 +478,15 @@ xchk_ag_btcur_init(
        /* Set up a inobt cursor for cross-referencing. */
        if (sa->agi_bp &&
            xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_INO)) {
-               sa->ino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
-                               sa->pag, XFS_BTNUM_INO);
+               sa->ino_cur = xfs_inobt_init_cursor(sa->pag, sc->tp, sa->agi_bp,
+                               XFS_BTNUM_INO);
        }
 
        /* Set up a finobt cursor for cross-referencing. */
        if (sa->agi_bp && xfs_has_finobt(mp) &&
            xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_FINO)) {
-               sa->fino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
-                               sa->pag, XFS_BTNUM_FINO);
+               sa->fino_cur = xfs_inobt_init_cursor(sa->pag, sc->tp, sa->agi_bp,
+                               XFS_BTNUM_FINO);
        }
 
        /* Set up a rmapbt cursor for cross-referencing. */

diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c
index c31857d..21be93b 100644 (file)
--- a/fs/xfs/xfs_iwalk.c
+++ b/fs/xfs/xfs_iwalk.c
@@ -275,7 +275,7 @@ xfs_iwalk_ag_start(
 
        /* Set up a fresh cursor and empty the inobt cache. */
        iwag->nr_recs = 0;
-       error = xfs_inobt_cur(mp, tp, pag, XFS_BTNUM_INO, curpp, agi_bpp);
+       error = xfs_inobt_cur(pag, tp, XFS_BTNUM_INO, curpp, agi_bpp);
        if (error)
                return error;
 
@@ -390,7 +390,7 @@ xfs_iwalk_run_callbacks(
        }
 
        /* ...and recreate the cursor just past where we left off. */
-       error = xfs_inobt_cur(mp, iwag->tp, iwag->pag, XFS_BTNUM_INO, curpp,
+       error = xfs_inobt_cur(iwag->pag, iwag->tp, XFS_BTNUM_INO, curpp,
                        agi_bpp);
        if (error)
                return error;