To prepare for re-enabling delalloc on RT devices, track the data blocks
(which use the RT device when the inode sits on it) and the indirect
blocks (which don't) separately to xfs_mod_delalloc, and add a new
percpu counter to also track the RT delalloc blocks.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/libxfs/xfs_bmap.c | 12 ++++++------
fs/xfs/scrub/fscounters.c | 3 +++
fs/xfs/xfs_mount.c | 16 +++++++++++++---
fs/xfs/xfs_mount.h | 9 ++++++++-
fs/xfs/xfs_super.c | 11 ++++++++++-
5 files changed, 40 insertions(+), 11 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 074d833e845af3..d7fda286a4eaa0 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -1926,7 +1926,7 @@ xfs_bmap_add_extent_delay_real(
}
if (da_new != da_old)
- xfs_mod_delalloc(mp, (int64_t)da_new - da_old);
+ xfs_mod_delalloc(bma->ip, 0, (int64_t)da_new - da_old);
if (bma->cur) {
da_new += bma->cur->bc_ino.allocated;
@@ -2622,7 +2622,7 @@ xfs_bmap_add_extent_hole_delay(
/*
* Nothing to do for disk quota accounting here.
*/
- xfs_mod_delalloc(ip->i_mount, (int64_t)newlen - oldlen);
+ xfs_mod_delalloc(ip, 0, (int64_t)newlen - oldlen);
}
}
@@ -3292,7 +3292,7 @@ xfs_bmap_alloc_account(
* yet.
*/
if (ap->wasdel) {
- xfs_mod_delalloc(ap->ip->i_mount, -(int64_t)ap->length);
+ xfs_mod_delalloc(ap->ip, -(int64_t)ap->length, 0);
return;
}
@@ -3316,7 +3316,7 @@ xfs_bmap_alloc_account(
xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE);
if (ap->wasdel) {
ap->ip->i_delayed_blks -= ap->length;
- xfs_mod_delalloc(ap->ip->i_mount, -(int64_t)ap->length);
+ xfs_mod_delalloc(ap->ip, -(int64_t)ap->length, 0);
fld = isrt ? XFS_TRANS_DQ_DELRTBCOUNT : XFS_TRANS_DQ_DELBCOUNT;
} else {
fld = isrt ? XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
@@ -4041,7 +4041,7 @@ xfs_bmapi_reserve_delalloc(
goto out_unreserve_frextents;
ip->i_delayed_blks += alen;
- xfs_mod_delalloc(ip->i_mount, alen + indlen);
+ xfs_mod_delalloc(ip, alen, indlen);
got->br_startoff = aoff;
got->br_startblock = nullstartblock(indlen);
@@ -4938,7 +4938,7 @@ xfs_bmap_del_extent_delay(
fdblocks += del->br_blockcount;
xfs_add_fdblocks(mp, fdblocks);
- xfs_mod_delalloc(mp, -(int64_t)fdblocks);
+ xfs_mod_delalloc(ip, -(int64_t)del->br_blockcount, -da_diff);
return error;
}
diff --git a/fs/xfs/scrub/fscounters.c b/fs/xfs/scrub/fscounters.c
index 5c6d7244078942..b442e50e81555f 100644
--- a/fs/xfs/scrub/fscounters.c
+++ b/fs/xfs/scrub/fscounters.c
@@ -426,6 +426,9 @@ xchk_fscount_count_frextents(
goto out_unlock;
}
+ fsc->frextents -=
+ xfs_rtb_to_rtx(mp, percpu_counter_sum(&mp->m_delalloc_rtblks));
+
out_unlock:
xfs_iunlock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
return error;
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 2e06837051d6b0..afc30d3333e8ad 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1388,9 +1388,19 @@ xfs_clear_incompat_log_features(
#define XFS_DELALLOC_BATCH (4096)
void
xfs_mod_delalloc(
- struct xfs_mount *mp,
- int64_t delta)
+ struct xfs_inode *ip,
+ int64_t data_delta,
+ int64_t ind_delta)
{
- percpu_counter_add_batch(&mp->m_delalloc_blks, delta,
+ struct xfs_mount *mp = ip->i_mount;
+
+ if (XFS_IS_REALTIME_INODE(ip)) {
+ percpu_counter_add_batch(&mp->m_delalloc_rtblks, data_delta,
+ XFS_DELALLOC_BATCH);
+ if (!ind_delta)
+ return;
+ data_delta = 0;
+ }
+ percpu_counter_add_batch(&mp->m_delalloc_blks, data_delta + ind_delta,
XFS_DELALLOC_BATCH);
}
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 891a54d57f576d..71c7d06f3210c8 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -195,6 +195,12 @@ typedef struct xfs_mount {
* extents or anything related to the rt device.
*/
struct percpu_counter m_delalloc_blks;
+
+ /*
+ * RT version of the above.
+ */
+ struct percpu_counter m_delalloc_rtblks;
+
/*
* Global count of allocation btree blocks in use across all AGs. Only
* used when perag reservation is enabled. Helps prevent block
@@ -586,6 +592,7 @@ struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp,
void xfs_force_summary_recalc(struct xfs_mount *mp);
int xfs_add_incompat_log_feature(struct xfs_mount *mp, uint32_t feature);
bool xfs_clear_incompat_log_features(struct xfs_mount *mp);
-void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta);
+void xfs_mod_delalloc(struct xfs_inode *ip, int64_t data_delta,
+ int64_t ind_delta);
#endif /* __XFS_MOUNT_H__ */
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index b16828410ec19b..1e21f8b953cf77 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1053,12 +1053,18 @@ xfs_init_percpu_counters(
if (error)
goto free_fdblocks;
- error = percpu_counter_init(&mp->m_frextents, 0, GFP_KERNEL);
+ error = percpu_counter_init(&mp->m_delalloc_rtblks, 0, GFP_KERNEL);
if (error)
goto free_delalloc;
+ error = percpu_counter_init(&mp->m_frextents, 0, GFP_KERNEL);
+ if (error)
+ goto free_delalloc_rt;
+
return 0;
+free_delalloc_rt:
+ percpu_counter_destroy(&mp->m_delalloc_rtblks);
free_delalloc:
percpu_counter_destroy(&mp->m_delalloc_blks);
free_fdblocks:
@@ -1087,6 +1093,9 @@ xfs_destroy_percpu_counters(
percpu_counter_destroy(&mp->m_icount);
percpu_counter_destroy(&mp->m_ifree);
percpu_counter_destroy(&mp->m_fdblocks);
+ ASSERT(xfs_is_shutdown(mp) ||
+ percpu_counter_sum(&mp->m_delalloc_rtblks) == 0);
+ percpu_counter_destroy(&mp->m_delalloc_rtblks);
ASSERT(xfs_is_shutdown(mp) ||
percpu_counter_sum(&mp->m_delalloc_blks) == 0);
percpu_counter_destroy(&mp->m_delalloc_blks);
--
2.39.2
