From a153f32b1f2518c666e3371d679e3880725e6186 Mon Sep 17 00:00:00 2001 From: Robert Tiemann Date: Thu, 2 Oct 2025 11:59:24 +0200 Subject: [PATCH] udev-extraconf: Speed up mount.sh On devices with many partitions, running blkid without parameters can be rather slow because all block devices are inspected: $ time /sbin/blkid real 0m0.474s user 0m0.026s sys 0m0.172s versus $ time /sbin/blkid /dev/mmcblk0p10 real 0m0.027s user 0m0.002s sys 0m0.018s Plugging in a device with 5 partitions means that mount.sh is going to be executed 5 times, and so will be blkid. In the real-world case outlined above, this adds up to an overhead of about 2.3 seconds for blkid alone. This commit changes mount.sh so that the block device of interest is passed directly to blkid such that blkid inspects only that device, leading to significant speedup. (From OE-Core rev: 5e90348ce2fa400c77641062aa0b1efb52c9f955) Signed-off-by: Robert Tiemann Signed-off-by: Mathieu Dubois-Briand Signed-off-by: Richard Purdie --- meta/recipes-core/udev/udev-extraconf/mount.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/meta/recipes-core/udev/udev-extraconf/mount.sh b/meta/recipes-core/udev/udev-extraconf/mount.sh index 0cbae48729..fe78f3aba5 100644 --- a/meta/recipes-core/udev/udev-extraconf/mount.sh +++ b/meta/recipes-core/udev/udev-extraconf/mount.sh @@ -178,7 +178,7 @@ rm_dir() { get_label_name() { # Get the LABEL or PARTLABEL - LABEL=`/sbin/blkid | grep "$1:" | grep -o 'LABEL=".*"' | cut -d '"' -f2` + LABEL=`/sbin/blkid "$1" | grep -o 'LABEL=".*"' | cut -d '"' -f2` # If the $DEVNAME has a LABEL or a PARTLABEL if [ -n "$LABEL" ]; then # Set the mount location dir name to LABEL appended