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armbian-kernel.sh enable zram compression backends: LZ4, LZ4HC, ZSTD, DEFLATE, 842, and LZO

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Migelo 2025-10-16 01:40:23 -05:00 committed by Igor
parent d57bce6266
commit 3ad0696e00
1 changed files with 20 additions and 0 deletions
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20
lib/functions/compilation/armbian-kernel.sh
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@ -163,6 +163,7 @@ function armbian_kernel_config__600_enable_ebpf_and_btf_info() {
# - Enables in-memory compression for swap or temporary storage (ZRAM).
# - Allows write-back of compressed ZRAM data (ZRAM_WRITEBACK).
# - Enables memory usage tracking for ZRAM (ZRAM_MEMORY_TRACKING).
# - Enables various ZRAM compression backend algorithms (LZ4, LZ4HC, ZSTD, DEFLATE, 842, LZO).
#
# Globals:
# kernel_config_modifying_hashes - Array used to store configuration changes.
@ -176,6 +177,25 @@ function armbian_kernel_config__enable_zram_support() {
kernel_config_set_m ZRAM # Enables in-memory block device compression for swap or temporary storage
kernel_config_set_y ZRAM_WRITEBACK # Allows write-back of compressed ZRAM data to storage
kernel_config_set_y ZRAM_MEMORY_TRACKING # Enables tracking of memory usage in ZRAM
# List of known ZRAM backend config symbols
local -a zram_backends=(
"ZRAM_BACKEND_LZ4"
"ZRAM_BACKEND_LZ4HC"
"ZRAM_BACKEND_ZSTD"
"ZRAM_BACKEND_DEFLATE"
"ZRAM_BACKEND_842"
"ZRAM_BACKEND_LZO"
)
for backend in "${zram_backends[@]}"; do
# Only try enabling the backend if the symbol exists in the .config
if grep -qE "^(# )?CONFIG_${backend}(=| )" .config; then
kernel_config_set_y "${backend}"
else
display_alert "Skipping missing ZRAM backend symbol" "${backend} not found in .config" "debug"
fi
done
fi
}