[PATCH 09/23] xfs: push perags through the ag reservation callouts

Dave Chinner
2021-05-19T01:21:11Z

We currently pass an agno from the AG reservation functions to the
individual feature accounting functions, which in future may have to
do perag lookups to access per-AG state. Instead, pre-emptively
plumb the perag through from the highest AG reservation layer to the
feature callouts so they won't have to look it up again.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/libxfs/xfs_ag_resv.c | 9 ++++-----
fs/xfs/libxfs/xfs_ialloc_btree.c | 17 +++++++++--------
fs/xfs/libxfs/xfs_ialloc_btree.h | 2 +-
fs/xfs/libxfs/xfs_refcount_btree.c | 7 +++----
fs/xfs/libxfs/xfs_refcount_btree.h | 3 ++-
fs/xfs/libxfs/xfs_rmap_btree.c | 6 +++---
fs/xfs/libxfs/xfs_rmap_btree.h | 2 +-
7 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index 2e3dcdfd4984..f7394a8ecf6b 100644
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -250,7 +250,6 @@ xfs_ag_resv_init(
struct xfs_trans *tp)
{
struct xfs_mount *mp = pag->pag_mount;
- xfs_agnumber_t agno = pag->pag_agno;
xfs_extlen_t ask;
xfs_extlen_t used;
int error = 0, error2;
@@ -260,11 +259,11 @@ xfs_ag_resv_init(
if (pag->pag_meta_resv.ar_asked == 0) {
ask = used = 0;

- error = xfs_refcountbt_calc_reserves(mp, tp, agno, &ask, &used);
+ error = xfs_refcountbt_calc_reserves(mp, tp, pag, &ask, &used);
if (error)
goto out;

- error = xfs_finobt_calc_reserves(mp, tp, agno, &ask, &used);
+ error = xfs_finobt_calc_reserves(mp, tp, pag, &ask, &used);
if (error)
goto out;

@@ -282,7 +281,7 @@ xfs_ag_resv_init(

mp->m_finobt_nores = true;

- error = xfs_refcountbt_calc_reserves(mp, tp, agno, &ask,
+ error = xfs_refcountbt_calc_reserves(mp, tp, pag, &ask,
&used);
if (error)
goto out;
@@ -300,7 +299,7 @@ xfs_ag_resv_init(
if (pag->pag_rmapbt_resv.ar_asked == 0) {
ask = used = 0;

- error = xfs_rmapbt_calc_reserves(mp, tp, agno, &ask, &used);
+ error = xfs_rmapbt_calc_reserves(mp, tp, pag, &ask, &used);
if (error)
goto out;

diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 4c5831646bd9..4ec8ea1331a5 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -20,6 +20,7 @@
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_rmap.h"
+#include "xfs_ag.h"

STATIC int
xfs_inobt_get_minrecs(
@@ -680,7 +681,7 @@ static int
xfs_inobt_count_blocks(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
+ struct xfs_perag *pag,
xfs_btnum_t btnum,
xfs_extlen_t *tree_blocks)
{
@@ -688,7 +689,7 @@ xfs_inobt_count_blocks(
struct xfs_btree_cur *cur = NULL;
int error;

- error = xfs_inobt_cur(mp, tp, agno, btnum, &cur, &agbp);
+ error = xfs_inobt_cur(mp, tp, pag->pag_agno, btnum, &cur, &agbp);
if (error)
return error;

@@ -704,14 +705,14 @@ static int
xfs_finobt_read_blocks(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
+ struct xfs_perag *pag,
xfs_extlen_t *tree_blocks)
{
struct xfs_buf *agbp;
struct xfs_agi *agi;
int error;

- error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
+ error = xfs_ialloc_read_agi(mp, tp, pag->pag_agno, &agbp);
if (error)
return error;

@@ -728,7 +729,7 @@ int
xfs_finobt_calc_reserves(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
+ struct xfs_perag *pag,
xfs_extlen_t *ask,
xfs_extlen_t *used)
{
@@ -739,14 +740,14 @@ xfs_finobt_calc_reserves(
return 0;

if (xfs_sb_version_hasinobtcounts(&mp->m_sb))
- error = xfs_finobt_read_blocks(mp, tp, agno, &tree_len);
+ error = xfs_finobt_read_blocks(mp, tp, pag, &tree_len);
else
- error = xfs_inobt_count_blocks(mp, tp, agno, XFS_BTNUM_FINO,
+ error = xfs_inobt_count_blocks(mp, tp, pag, XFS_BTNUM_FINO,
&tree_len);
if (error)
return error;

- *ask += xfs_inobt_max_size(mp, agno);
+ *ask += xfs_inobt_max_size(mp, pag->pag_agno);
*used += tree_len;
return 0;
}
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.h b/fs/xfs/libxfs/xfs_ialloc_btree.h
index 35bbd978c272..d5afe01fb2de 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.h
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.h
@@ -64,7 +64,7 @@ int xfs_inobt_rec_check_count(struct xfs_mount *,
#endif /* DEBUG */

int xfs_finobt_calc_reserves(struct xfs_mount *mp, struct xfs_trans *tp,
- xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
+ struct xfs_perag *pag, 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,
diff --git a/fs/xfs/libxfs/xfs_refcount_btree.c b/fs/xfs/libxfs/xfs_refcount_btree.c
index b281f0c674f5..c4ddf9ded00b 100644
--- a/fs/xfs/libxfs/xfs_refcount_btree.c
+++ b/fs/xfs/libxfs/xfs_refcount_btree.c
@@ -450,7 +450,7 @@ int
xfs_refcountbt_calc_reserves(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
+ struct xfs_perag *pag,
xfs_extlen_t *ask,
xfs_extlen_t *used)
{
@@ -463,8 +463,7 @@ xfs_refcountbt_calc_reserves(
if (!xfs_sb_version_hasreflink(&mp->m_sb))
return 0;

-
- error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
+ error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);
if (error)
return error;

@@ -479,7 +478,7 @@ xfs_refcountbt_calc_reserves(
* expansion. We therefore can pretend the space isn't there.
*/
if (mp->m_sb.sb_logstart &&
- XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno)
+ XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == pag->pag_agno)
agblocks -= mp->m_sb.sb_logblocks;

*ask += xfs_refcountbt_max_size(mp, agblocks);
diff --git a/fs/xfs/libxfs/xfs_refcount_btree.h b/fs/xfs/libxfs/xfs_refcount_btree.h
index 69dc515db671..eab1b0c672c0 100644
--- a/fs/xfs/libxfs/xfs_refcount_btree.h
+++ b/fs/xfs/libxfs/xfs_refcount_btree.h
@@ -13,6 +13,7 @@
struct xfs_buf;
struct xfs_btree_cur;
struct xfs_mount;
+struct xfs_perag;
struct xbtree_afakeroot;

/*
@@ -58,7 +59,7 @@ extern xfs_extlen_t xfs_refcountbt_max_size(struct xfs_mount *mp,
xfs_agblock_t agblocks);

extern int xfs_refcountbt_calc_reserves(struct xfs_mount *mp,
- struct xfs_trans *tp, xfs_agnumber_t agno, xfs_extlen_t *ask,
+ struct xfs_trans *tp, struct xfs_perag *pag, xfs_extlen_t *ask,
xfs_extlen_t *used);

void xfs_refcountbt_commit_staged_btree(struct xfs_btree_cur *cur,
diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c
index 46a5295ecf35..ba2f7064451b 100644
--- a/fs/xfs/libxfs/xfs_rmap_btree.c
+++ b/fs/xfs/libxfs/xfs_rmap_btree.c
@@ -595,7 +595,7 @@ int
xfs_rmapbt_calc_reserves(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
+ struct xfs_perag *pag,
xfs_extlen_t *ask,
xfs_extlen_t *used)
{
@@ -608,7 +608,7 @@ xfs_rmapbt_calc_reserves(
if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
return 0;

- error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
+ error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);
if (error)
return error;

@@ -623,7 +623,7 @@ xfs_rmapbt_calc_reserves(
* expansion. We therefore can pretend the space isn't there.
*/
if (mp->m_sb.sb_logstart &&
- XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno)
+ XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == pag->pag_agno)
agblocks -= mp->m_sb.sb_logblocks;

/* Reserve 1% of the AG or enough for 1 block per record. */
diff --git a/fs/xfs/libxfs/xfs_rmap_btree.h b/fs/xfs/libxfs/xfs_rmap_btree.h
index 115c3455a734..57fab72e26ad 100644
--- a/fs/xfs/libxfs/xfs_rmap_btree.h
+++ b/fs/xfs/libxfs/xfs_rmap_btree.h
@@ -57,6 +57,6 @@ extern xfs_extlen_t xfs_rmapbt_max_size(struct xfs_mount *mp,
xfs_agblock_t agblocks);

extern int xfs_rmapbt_calc_reserves(struct xfs_mount *mp, struct xfs_trans *tp,
- xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
+ struct xfs_perag *pag, xfs_extlen_t *ask, xfs_extlen_t *used);

#endif /* __XFS_RMAP_BTREE_H__ */
--
2.31.1