diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-10-05 10:47:36 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-10-22 16:41:17 -0700 |
| commit | 04e01af9318f50df5e1974d8e2ce7d54b6cfbe55 (patch) | |
| tree | c9ecd431013084675617dda8097c2a07ca3f3156 /fs/xfs/scrub/xfbtree.c | |
| parent | 058725b83f3ab866a225aec3bfa204c0b7f4d3a8 (diff) | |
xfs: map xfile pages directly into xfs_buf
Map the xfile pages directly into xfs_buf to reduce memory overhead.
It's silly to use memory to stage changes to shmem pages for ephemeral
btrees that don't care about transactionality.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/scrub/xfbtree.c')
| -rw-r--r-- | fs/xfs/scrub/xfbtree.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/xfs/scrub/xfbtree.c b/fs/xfs/scrub/xfbtree.c index c43c18136733..1098234eec3b 100644 --- a/fs/xfs/scrub/xfbtree.c +++ b/fs/xfs/scrub/xfbtree.c @@ -151,8 +151,9 @@ xfs_btree_mem_head_read_buf( { struct xfs_mount *mp = btp->bt_mount; - return xfs_trans_read_buf(mp, tp, btp, XFS_BTREE_MEM_HEAD_DADDR, 1, 0, - bpp, &xfs_btree_mem_head_buf_ops); + return xfs_trans_read_buf(mp, tp, btp, XFS_BTREE_MEM_HEAD_DADDR, + XFS_FSB_TO_BB(mp, 1), 0, bpp, + &xfs_btree_mem_head_buf_ops); } /* Return tree height from the in-memory btree head */ @@ -239,6 +240,9 @@ xfbtree_create( goto err_xfile; } + if (mp->m_bsize == PAGE_SIZE && (flags & XFBTREE_DIRECT_MAP)) + xfbt->target->bt_flags |= XFS_BUFTARG_DIRECT_MAP; + xfbt->freespace = kmem_alloc(sizeof(struct xbitmap), KM_NOFS | KM_MAYFAIL); if (!xfbt->freespace) { @@ -264,7 +268,8 @@ xfbtree_create( goto err_freesp; /* Initialize the in-memory btree header block. */ - error = xfs_buf_get(xfbt->target, XFS_BTREE_MEM_HEAD_DADDR, 1, &bp); + error = xfs_buf_get(xfbt->target, XFS_BTREE_MEM_HEAD_DADDR, + XFS_FSB_TO_BB(mp, 1), &bp); if (error) goto err_freesp; |