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-rw-r--r--fs/f2fs/segment.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 67f1e5bbdac9..823526ec5243 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -22,6 +22,8 @@
#define __reverse_ffz(x) __reverse_ffs(~(x))
+static struct kmem_cache *discard_entry_slab;
+
/*
* __reverse_ffs is copied from include/asm-generic/bitops/__ffs.h since
* MSB and LSB are reversed in a byte by f2fs_set_bit.
@@ -1798,6 +1800,10 @@ int build_segment_manager(struct f2fs_sb_info *sbi)
sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
sm_info->rec_prefree_segments = DEF_RECLAIM_PREFREE_SEGMENTS;
+ INIT_LIST_HEAD(&sm_info->discard_list);
+ sm_info->nr_discards = 0;
+ sm_info->max_discards = 0;
+
err = build_sit_info(sbi);
if (err)
return err;
@@ -1913,3 +1919,17 @@ void destroy_segment_manager(struct f2fs_sb_info *sbi)
sbi->sm_info = NULL;
kfree(sm_info);
}
+
+int __init create_segment_manager_caches(void)
+{
+ discard_entry_slab = f2fs_kmem_cache_create("discard_entry",
+ sizeof(struct discard_entry), NULL);
+ if (!discard_entry_slab)
+ return -ENOMEM;
+ return 0;
+}
+
+void destroy_segment_manager_caches(void)
+{
+ kmem_cache_destroy(discard_entry_slab);
+}
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