HDFS-17053. Optimize method BlockInfoStriped#findSlot to reduce time complexity.

[hfutatzhanghb]

Description of PR

Please see HDFS-17053.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 54s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
+1 💚	mvninstall	39m 15s		trunk passed
+1 💚	compile	1m 24s		trunk passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	compile	1m 16s		trunk passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	checkstyle	1m 17s		trunk passed
+1 💚	mvnsite	1m 25s		trunk passed
+1 💚	javadoc	1m 14s		trunk passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	javadoc	1m 34s		trunk passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	3m 37s		trunk passed
+1 💚	shadedclient	26m 51s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	1m 13s		the patch passed
+1 💚	compile	1m 17s		the patch passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	javac	1m 17s		the patch passed
+1 💚	compile	1m 9s		the patch passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	javac	1m 9s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	1m 1s		the patch passed
+1 💚	mvnsite	1m 15s		the patch passed
+1 💚	javadoc	0m 56s		the patch passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	javadoc	1m 26s		the patch passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	3m 22s		the patch passed
+1 💚	shadedclient	26m 24s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	234m 38s		hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 49s		The patch does not generate ASF License warnings.
		351m 53s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5757/1/artifact/out/Dockerfile
GITHUB PR	#5757
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 357d71ea1add 4.15.0-206-generic #217-Ubuntu SMP Fri Feb 3 19:10:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / dc84781
Default Java	Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5757/1/testReport/
Max. process+thread count	2412 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5757/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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[hfutatzhanghb]

@ayushtkn Hi, sir. could you please help me review this minor changes when you have time? Thanks a lot~.

[ayushtkn]

LGTM

[hfutatzhanghb]

@ayushtkn Sir, thanks a lot for your reviewing and merging~