@@ -119,6 +119,16 @@ CONFIG_CRYPTO_CHACHA20POLY1305=y
 CONFIG_EXT4_FS=y
 CONFIG_SQUASHFS=y
 CONFIG_SQUASHFS_ZSTD=y
+# Read squashfs file data in parallel. The default buffered path copies every
+# data block through a per-mount cache with one entry per decompressor, and the
+# default single decompressor makes that one entry, so all reads of a mount
+# serialize even when the blocks are stored uncompressed: a verity volume on a
+# B300 host capped at ~700 MB/s against 4.6 GB/s from the raw disk (#1505).
+# FILE_DIRECT decompresses straight into the page cache, and the per-CPU
+# decompressors let compressed blocks scale with readers as well, at the cost
+# of one decompressor workspace per CPU per mount.
+CONFIG_SQUASHFS_FILE_DIRECT=y
+CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU=y
 CONFIG_XFS_FS=m
 CONFIG_BTRFS_FS=m
 CONFIG_OVERLAY_FS=y