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Diffstat (limited to 'fs/xfs/xfs_zone_gc.c')
-rw-r--r--fs/xfs/xfs_zone_gc.c27
1 files changed, 23 insertions, 4 deletions
diff --git a/fs/xfs/xfs_zone_gc.c b/fs/xfs/xfs_zone_gc.c
index c5136ea9bb1d..d613a4094db6 100644
--- a/fs/xfs/xfs_zone_gc.c
+++ b/fs/xfs/xfs_zone_gc.c
@@ -162,18 +162,36 @@ struct xfs_zone_gc_data {
/*
* We aim to keep enough zones free in stock to fully use the open zone limit
- * for data placement purposes.
+ * for data placement purposes. Additionally, the m_zonegc_low_space tunable
+ * can be set to make sure a fraction of the unused blocks are available for
+ * writing.
*/
bool
xfs_zoned_need_gc(
struct xfs_mount *mp)
{
+ s64 available, free, threshold;
+ s32 remainder;
+
if (!xfs_group_marked(mp, XG_TYPE_RTG, XFS_RTG_RECLAIMABLE))
return false;
- if (xfs_estimate_freecounter(mp, XC_FREE_RTAVAILABLE) <
+
+ available = xfs_estimate_freecounter(mp, XC_FREE_RTAVAILABLE);
+
+ if (available <
mp->m_groups[XG_TYPE_RTG].blocks *
(mp->m_max_open_zones - XFS_OPEN_GC_ZONES))
return true;
+
+ free = xfs_estimate_freecounter(mp, XC_FREE_RTEXTENTS);
+
+ threshold = div_s64_rem(free, 100, &remainder);
+ threshold = threshold * mp->m_zonegc_low_space +
+ remainder * div_s64(mp->m_zonegc_low_space, 100);
+
+ if (available < threshold)
+ return true;
+
return false;
}
@@ -789,7 +807,8 @@ xfs_zone_gc_write_chunk(
{
struct xfs_zone_gc_data *data = chunk->data;
struct xfs_mount *mp = chunk->ip->i_mount;
- unsigned int folio_offset = chunk->bio.bi_io_vec->bv_offset;
+ phys_addr_t bvec_paddr =
+ bvec_phys(bio_first_bvec_all(&chunk->bio));
struct xfs_gc_bio *split_chunk;
if (chunk->bio.bi_status)
@@ -804,7 +823,7 @@ xfs_zone_gc_write_chunk(
bio_reset(&chunk->bio, mp->m_rtdev_targp->bt_bdev, REQ_OP_WRITE);
bio_add_folio_nofail(&chunk->bio, chunk->scratch->folio, chunk->len,
- folio_offset);
+ offset_in_folio(chunk->scratch->folio, bvec_paddr));
while ((split_chunk = xfs_zone_gc_split_write(data, chunk)))
xfs_zone_gc_submit_write(data, split_chunk);