powerpc-utils/SOURCES/powerpc-utils-ofpathname-c97fe35b5b6d767b88419fa2084a59e986ac3da0.patch
2021-11-25 11:51:14 +00:00

31 lines
1.1 KiB
Diff

commit c97fe35b5b6d767b88419fa2084a59e986ac3da0
Author: Nathan Lynch <nathanl@linux.ibm.com>
Date: Mon Apr 27 20:48:04 2020 -0500
ofpathname: speed up l2of_scsi()
There is no need to search the entire /sys hierarchy for kernel device
names like "sda". We know that if it is present it will be in
/sys/class/block.
In an environment with more than 800 scsi devices, this brings the
execution time for a command like "lsdevinfo -F name -c -q
parent=host1" from over 20 minutes to under two minutes.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
diff --git a/scripts/ofpathname b/scripts/ofpathname
index 7c6345e..bd61ee0 100755
--- a/scripts/ofpathname
+++ b/scripts/ofpathname
@@ -773,7 +773,7 @@ l2of_scsi()
local devtype
# There may be many instances of DEVICE under /sys
- for dir in `$FIND /sys -name $DEVICE`; do
+ for dir in `$FIND /sys/class/block -name $DEVICE`; do
# Move up until we find one with a device link
goto_dir $dir "device" 0
if [ $? -eq 0 ]; then