The xfs_btree_cur.bc_private.a.dfops field is only ever initialized
by the refcountbt cursor init function. The only caller of that
function with a non-NULL dfops is from deferred completion context,
which already has attached to ->t_dfops.
In addition to that, the only actual reference of a.dfops is the
cursor duplication function, which means the field is effectively
unused.
Remove the dfops field from the bc_private.a union. Any future users
can acquire the dfops from the transaction. This patch does not
change behavior.
Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_btree.h | 1 -
fs/xfs/libxfs/xfs_refcount.c | 4 ++--
fs/xfs/libxfs/xfs_refcount_btree.c | 7 ++-----
fs/xfs/libxfs/xfs_refcount_btree.h | 4 ++--
fs/xfs/scrub/common.c | 2 +-
fs/xfs/xfs_fsmap.c | 2 +-
fs/xfs/xfs_reflink.c | 2 +-
7 files changed, 9 insertions(+), 13 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index cc94ac765dec..b986a8fc8d40 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -209,7 +209,6 @@ typedef struct xfs_btree_cur
union {
struct { /* needed for BNO, CNT, INO */
struct xfs_buf *agbp; /* agf/agi buffer pointer */
- struct xfs_defer_ops *dfops; /* deferred updates */
xfs_agnumber_t agno; /* ag number */
union xfs_btree_cur_private priv;
} a;
diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c
index 9dda6fd0bb13..8e330a196060 100644
--- a/fs/xfs/libxfs/xfs_refcount.c
+++ b/fs/xfs/libxfs/xfs_refcount.c
@@ -1132,7 +1132,7 @@ xfs_refcount_finish_one(
if (!agbp)
return -EFSCORRUPTED;
- rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, dfops);
+ rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno);
if (!rcur) {
error = -ENOMEM;
goto out_cur;
@@ -1666,7 +1666,7 @@ xfs_refcount_recover_cow_leftovers(
error = -ENOMEM;
goto out_trans;
}
- cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
+ cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno);
/* Find all the leftover CoW staging extents. */
memset(&low, 0, sizeof(low));
diff --git a/fs/xfs/libxfs/xfs_refcount_btree.c b/fs/xfs/libxfs/xfs_refcount_btree.c
index b71937982c5b..393aa88f93db 100644
--- a/fs/xfs/libxfs/xfs_refcount_btree.c
+++ b/fs/xfs/libxfs/xfs_refcount_btree.c
@@ -27,8 +27,7 @@ xfs_refcountbt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_refcountbt_init_cursor(cur->bc_mp, cur->bc_tp,
- cur->bc_private.a.agbp, cur->bc_private.a.agno,
- cur->bc_private.a.dfops);
+ cur->bc_private.a.agbp, cur->bc_private.a.agno);
}
STATIC void
@@ -323,8 +322,7 @@ xfs_refcountbt_init_cursor(
struct xfs_mount *mp,
struct xfs_trans *tp,
struct xfs_buf *agbp,
- xfs_agnumber_t agno,
- struct xfs_defer_ops *dfops)
+ xfs_agnumber_t agno)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_btree_cur *cur;
@@ -344,7 +342,6 @@ xfs_refcountbt_init_cursor(
cur->bc_private.a.agbp = agbp;
cur->bc_private.a.agno = agno;
- cur->bc_private.a.dfops = dfops;
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
cur->bc_private.a.priv.refc.nr_ops = 0;
diff --git a/fs/xfs/libxfs/xfs_refcount_btree.h b/fs/xfs/libxfs/xfs_refcount_btree.h
index d2852b6e1fa8..801c2c7732fd 100644
--- a/fs/xfs/libxfs/xfs_refcount_btree.h
+++ b/fs/xfs/libxfs/xfs_refcount_btree.h
@@ -44,8 +44,8 @@ struct xfs_mount;
((index) - 1) * sizeof(xfs_refcount_ptr_t)))
extern struct xfs_btree_cur *xfs_refcountbt_init_cursor(struct xfs_mount *mp,
- struct xfs_trans *tp, struct xfs_buf *agbp, xfs_agnumber_t agno,
- struct xfs_defer_ops *dfops);
+ struct xfs_trans *tp, struct xfs_buf *agbp,
+ xfs_agnumber_t agno);
extern int xfs_refcountbt_maxrecs(int blocklen, bool leaf);
extern void xfs_refcountbt_compute_maxlevels(struct xfs_mount *mp);
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index 70e70c69f83f..385fa5b9c878 100644
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -499,7 +499,7 @@ xfs_scrub_ag_btcur_init(
/* Set up a refcountbt cursor for cross-referencing. */
if (sa->agf_bp && xfs_sb_version_hasreflink(&mp->m_sb)) {
sa->refc_cur = xfs_refcountbt_init_cursor(mp, sc->tp,
- sa->agf_bp, agno, NULL);
+ sa->agf_bp, agno);
if (!sa->refc_cur)
goto err;
}
diff --git a/fs/xfs/xfs_fsmap.c b/fs/xfs/xfs_fsmap.c
index c7157bc48bd1..297d7ce2901e 100644
--- a/fs/xfs/xfs_fsmap.c
+++ b/fs/xfs/xfs_fsmap.c
@@ -214,7 +214,7 @@ xfs_getfsmap_is_shared(
/* Are there any shared blocks here? */
flen = 0;
cur = xfs_refcountbt_init_cursor(mp, tp, info->agf_bp,
- info->agno, NULL);
+ info->agno);
error = xfs_refcount_find_shared(cur, rec->rm_startblock,
rec->rm_blockcount, &fbno, &flen, false);
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 2221c6c6a5d3..7cfe74d1514e 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -157,7 +157,7 @@ xfs_reflink_find_shared(
if (!agbp)
return -ENOMEM;
- cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
+ cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno);
error = xfs_refcount_find_shared(cur, agbno, aglen, fbno, flen,
find_end_of_shared);
--
2.17.1
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
