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xfs: refactor btree cursor allocation function

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Refactor btree allocation to a common helper.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2021-09-16 12:25:32 -07:00
parent 69724d920e
commit 56370ea6e5
6 changed files with 21 additions and 22 deletions
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6
fs/xfs/libxfs/xfs_alloc_btree.c
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@ -477,11 +477,7 @@ xfs_allocbt_init_common(
ASSERT(btnum == XFS_BTNUM_BNO || btnum == XFS_BTNUM_CNT);
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
cur->bc_btnum = btnum;
cur = xfs_btree_alloc_cursor(mp, tp, btnum);
cur->bc_ag.abt.active = false;
if (btnum == XFS_BTNUM_CNT) {

6
fs/xfs/libxfs/xfs_bmap_btree.c
View File

@ -552,12 +552,8 @@ xfs_bmbt_init_cursor(
struct xfs_btree_cur *cur;
ASSERT(whichfork != XFS_COW_FORK);
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_BMAP);
cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1;
cur->bc_btnum = XFS_BTNUM_BMAP;
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_bmbt_2);
cur->bc_ops = &xfs_bmbt_ops;

16
fs/xfs/libxfs/xfs_btree.h
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@ -578,4 +578,20 @@ void xfs_btree_copy_keys(struct xfs_btree_cur *cur,
union xfs_btree_key *dst_key,
const union xfs_btree_key *src_key, int numkeys);
static inline struct xfs_btree_cur *
xfs_btree_alloc_cursor(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
cur->bc_btnum = btnum;
return cur;
}
#endif /* __XFS_BTREE_H__ */

5
fs/xfs/libxfs/xfs_ialloc_btree.c
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@ -432,10 +432,7 @@ xfs_inobt_init_common(
{
struct xfs_btree_cur *cur;
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
cur->bc_btnum = btnum;
cur = xfs_btree_alloc_cursor(mp, tp, btnum);
if (btnum == XFS_BTNUM_INO) {
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_ibt_2);
cur->bc_ops = &xfs_inobt_ops;

5
fs/xfs/libxfs/xfs_refcount_btree.c
View File

@ -322,10 +322,7 @@ xfs_refcountbt_init_common(
ASSERT(pag->pag_agno < mp->m_sb.sb_agcount);
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
cur->bc_btnum = XFS_BTNUM_REFC;
cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_REFC);
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_refcbt_2);
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;

5
fs/xfs/libxfs/xfs_rmap_btree.c
View File

@ -451,11 +451,8 @@ xfs_rmapbt_init_common(
{
struct xfs_btree_cur *cur;
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
/* Overlapping btree; 2 keys per pointer. */
cur->bc_btnum = XFS_BTNUM_RMAP;
cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP);
cur->bc_flags = XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING;
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_rmap_2);
cur->bc_ops = &xfs_rmapbt_ops;