[PATCH] bcachefs: mark bch_inode_info and bkey_cached as reclaimable

[Mikulas Patocka <mpatocka@xxxxxxxxxx>]

Mark these caches as reclaimable, so that available memory is correctly
reported when there is a lot of cached inodes.

Note that more work is needed - you should add __GFP_RECLAIMABLE to some 
of the kmalloc calls, so that they are allocated from the "kmalloc-rcl-*" 
caches.

Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>

---
 fs/bcachefs/btree_key_cache.c |    2 +-
 fs/bcachefs/fs.c              |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Index: bcachefs/fs/bcachefs/btree_key_cache.c
===================================================================
--- bcachefs.orig/fs/bcachefs/btree_key_cache.c
+++ bcachefs/fs/bcachefs/btree_key_cache.c
@@ -1079,7 +1079,7 @@ void bch2_btree_key_cache_exit(void)
 
 int __init bch2_btree_key_cache_init(void)
 {
-	bch2_key_cache = KMEM_CACHE(bkey_cached, 0);
+	bch2_key_cache = KMEM_CACHE(bkey_cached, SLAB_RECLAIM_ACCOUNT);
 	if (!bch2_key_cache)
 		return -ENOMEM;
 
Index: bcachefs/fs/bcachefs/fs.c
===================================================================
--- bcachefs.orig/fs/bcachefs/fs.c
+++ bcachefs/fs/bcachefs/fs.c
@@ -1926,7 +1926,7 @@ int __init bch2_vfs_init(void)
 {
 	int ret = -ENOMEM;
 
-	bch2_inode_cache = KMEM_CACHE(bch_inode_info, 0);
+	bch2_inode_cache = KMEM_CACHE(bch_inode_info, SLAB_RECLAIM_ACCOUNT);
 	if (!bch2_inode_cache)
 		goto err;