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Btrfs: Allocator hints v4, updates to read balance

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This commit is contained in:
Forza 2025-04-10 19:05:09 +02:00
parent 39837276e2
commit d38f2b5f8d
1 changed files with 6 additions and 6 deletions
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12
Btrfs/Allocator Hints/btrfs_allocator_hints-6.12_v4.patch
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@ -1719,7 +1719,7 @@ index c2f235a02a79ea..63384cd731ded2 100644
return ret_stripe;
}
From 4426a9c7d82f8f100a90e1288b928d26e4c6560d Mon Sep 17 00:00:00 2001
From 94151649cd64b5a1270ca98ae192e0fcd9c5c59d Mon Sep 17 00:00:00 2001
From: Kai Krakow <kai@kaishome.de>
Date: Wed, 9 Apr 2025 15:35:26 +0200
Subject: [PATCH 21/22] btrfs: add filtering by latency to btrfs_read_rr
@ -1734,7 +1734,7 @@ Signed-off-by: Kai Krakow <kai@kaishome.de>
1 file changed, 27 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 63384cd731ded2..2215287a0630ab 100644
index 63384cd731ded2..40a7d860769f6b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6090,7 +6090,8 @@ static int btrfs_cmp_devid(const void *a, const void *b)
@ -1777,7 +1777,7 @@ index 63384cd731ded2..2215287a0630ab 100644
+ /* if the caller passed a minimum latency and we filtered for no
+ * stripes, return -1 to indicate that no stripe qualified.
+ */
+ if (min_latency && !index)
+ if (unlikely(min_latency && !index))
+ return -1;
+
sort(stripes, index, sizeof(struct stripe_mirror),
@ -1793,7 +1793,7 @@ index 63384cd731ded2..2215287a0630ab 100644
case BTRFS_READ_POLICY_DEVID:
preferred_mirror = btrfs_read_preferred(map, first, num_stripes);
From f1d74977bd791df8df7d07762830c256ab9c340c Mon Sep 17 00:00:00 2001
From e51ca315aea0ef47733cb9ba59edd415cdb44aef Mon Sep 17 00:00:00 2001
From: Kai Krakow <kai@kaishome.de>
Date: Wed, 9 Apr 2025 15:59:59 +0200
Subject: [PATCH 22/22] btrfs: add hybrid latency-rr read policy
@ -1855,7 +1855,7 @@ index fd096b83bb6c45..2014475af9716e 100644
u32 sectorsize = fs_devices->fs_info->sectorsize;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 2215287a0630ab..24ab30b17b9d8a 100644
index 40a7d860769f6b..17c5728e5cca59 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6143,6 +6143,40 @@ static int btrfs_read_rr(struct btrfs_chunk_map *map, int first, int num_stripes
@ -1891,7 +1891,7 @@ index 2215287a0630ab..24ab30b17b9d8a 100644
+ ret_stripe = btrfs_read_rr(map, first, num_stripes, min_latency);
+ }
+
+ if (ret_stripe < 0)
+ if (unlikely(ret_stripe < 0))
+ ret_stripe = btrfs_read_rr(map, first, num_stripes, 0);
+
+ return ret_stripe;