fs: exfat: Add support for building inside kernel

Change-Id: I963dfd24ffbb488efcbb7a504e9b811f54adcff7 Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
2022-02-26 20:27:24 +05:30 · 2022-02-26 20:27:24 +05:30 · 01bb8f9a1e
commit 01bb8f9a1e
parent 6676e8e787
7 changed files with 2 additions and 375 deletions
--- a/fs/Kconfig
+++ b/fs/Kconfig
@ -136,6 +136,7 @@ if BLOCK
 menu "DOS/FAT/NT Filesystems"

 source "fs/fat/Kconfig"
+source "fs/exfat/Kconfig"
 source "fs/ntfs/Kconfig"

 endmenu
--- a/fs/Makefile
+++ b/fs/Makefile
@ -80,6 +80,7 @@ obj-$(CONFIG_HUGETLBFS)		+= hugetlbfs/
 obj-$(CONFIG_CODA_FS)		+= coda/
 obj-$(CONFIG_MINIX_FS)		+= minix/
 obj-$(CONFIG_FAT_FS)		+= fat/
+obj-$(CONFIG_EXFAT_FS)		+= exfat/
 obj-$(CONFIG_BFS_FS)		+= bfs/
 obj-$(CONFIG_ISO9660_FS)	+= isofs/
 obj-$(CONFIG_HFSPLUS_FS)	+= hfsplus/ # Before hfs to find wrapped HFS+
--- a/fs/exfat/.travis.yml
+++ b/fs/exfat/.travis.yml
@ -1,188 +0,0 @@
-dist: bionic
-
-language: c
-
-notifications:
- - email: true
-
-before_script:
- # Download the kernel
- - sudo apt-get install libelf-dev wget tar gzip python
- - wget https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/linux-4.1.36.tar.gz
- - tar xf linux-4.1.36.tar.gz
- - mv linux-4.1.36 linux-stable
- - ./.travis_get_mainline_kernel
- - cp ./.travis_cmd_wrapper.pl ~/travis_cmd_wrapper.pl
- # Prerequisite for xfstests testing
- - sudo apt-get install linux-headers-$(uname -r)
- - sudo apt-get install autoconf libtool pkg-config libnl-3-dev libnl-genl-3-dev
- - sudo apt-get install xfslibs-dev uuid-dev libtool-bin xfsprogs libgdbm-dev gawk fio attr libattr1-dev libacl1-dev libaio-dev
- - git clone --branch=exfat-next https://github.com/exfat-utils/exfat-utils
- - git clone https://github.com/namjaejeon/exfat-testsuites
- - export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
- - export PATH=/usr/local/lib:$PATH
- - sudo useradd fsgqa
- - sudo useradd 123456-fsgqa
-
-script:
- # Copy ksmbd source to kernel
- - mv linux-stable ../
- - mv linux ../
- - mkdir ../linux-stable/fs/exfat
- - cp -ar * ../linux-stable/fs/exfat/
- - cp -ar * ../linux/fs/exfat/
-
- # Compile with 4.1 kernel
- - cd ../linux-stable
- - yes "" | make oldconfig > /dev/null
- - echo 'obj-$(CONFIG_EXFAT_FS) += exfat/' >> fs/Makefile
- - echo 'source "fs/exfat/Kconfig"' >> fs/Kconfig
- - echo 'CONFIG_EXFAT_FS=m' >> .config
- - echo 'CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"' >> .config
- - make -j$((`nproc`+1)) fs/exfat/exfat.ko
-
- # Compile with latest Torvalds' kernel
-# - cd ../linux
-# - yes "" | make oldconfig > /dev/null
-# - echo 'obj-$(CONFIG_EXFAT) += exfat/' >> fs/Makefile
-# - echo 'source "fs/exfat/Kconfig"' >> fs/Kconfig
-# - echo 'CONFIG_EXFAT_FS=m' >> .config
-# - echo 'CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"' >> .config
-# - make -j$((`nproc`+1)) fs/exfat/exfat.ko
-
- # Run xfstests testsuite
- - cd ../linux-exfat-oot
- - make > /dev/null
- - sudo make install > /dev/null
- - sudo modprobe exfat
- - cd exfat-utils
- - ./autogen.sh > /dev/null
- - ./configure > /dev/null
- - make -j$((`nproc`+1)) > /dev/null
- - sudo make install > /dev/null
- - sudo mkdir -p /mnt/scratch
- - sudo mkdir -p /mnt/test
- - sudo mkdir -p /mnt/full_test
- # create file/director test
- - truncate -s 10G full_test.img
- - sudo losetup /dev/loop22 full_test.img
- - sudo mkfs.exfat /dev/loop22
- - sudo mount -t exfat /dev/loop22 /mnt/full_test/
- - cd /mnt/full_test/
- - i=1;while [ $i -le 10000 ];do sudo touch file$i;if [ $? != 0 ]; then exit 1; fi; i=$(($i + 1));done
- - sync
- - sudo fsck.exfat /dev/loop22
- - sudo rm -rf *
- - i=1;while [ $i -le 10000 ];do sudo mkdir file$i;if [ $? != 0 ]; then exit 1; fi; i=$(($i + 1));done
- - sync
- - sudo rm -rf *
- - sudo fsck.exfat /dev/loop22
- - cd -
- - sudo umount /mnt/full_test/
- - sudo fsck.exfat /dev/loop22
- # run xfstests test
- - truncate -s 100G test.img
- - truncate -s 100G scratch.img
- - sudo losetup /dev/loop20 test.img
- - sudo losetup /dev/loop21 scratch.img
- - sudo mkfs.exfat /dev/loop20
- - sudo mkfs.exfat /dev/loop21
- - cd ..
- - cd exfat-testsuites/
- - tar xzvf xfstests-exfat.tgz > /dev/null
- - cd xfstests-exfat
- - make -j$((`nproc`+1)) > /dev/null
- - sudo ./check generic/001
- - sudo ./check generic/006
- - sudo ./check generic/007
- - sudo ./check generic/011
- - sudo ./check generic/013
- - sudo ./check generic/014
- - sudo ./check generic/028
- - sudo ./check generic/029
- - sudo ./check generic/030
- - sudo ./check generic/034
- - sudo ./check generic/035
- - sudo ./check generic/036
- - sudo ./check generic/069
- - sudo ./check generic/073
- - sudo ./check generic/074
- - sudo ./check generic/075
- - sudo ./check generic/076
- - sudo ./check generic/080
- - sudo ./check generic/084
- - sudo ./check generic/091
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- - sudo ./check generic/098
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- - sudo ./check generic/120
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- - sudo ./check generic/130
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- - sudo ./check generic/133
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- - sudo ./check generic/208
- - sudo ./check generic/209
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- - sudo ./check generic/212
- - sudo ./check generic/215
- - sudo ./check generic/221
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- - sudo ./check generic/240
- - sudo ./check generic/241
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- - sudo ./check generic/246
- - sudo ./check generic/247
- - sudo ./check generic/248
- - sudo ./check generic/249
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- - sudo ./check generic/260
- - sudo ./check generic/263
- - sudo ./check generic/285
- - sudo ./check generic/286
- - sudo ./check generic/288
- - sudo ./check generic/308
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- - sudo ./check generic/310
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- - sudo ./check generic/323
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- - sudo ./check generic/338
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- - sudo ./check generic/340
- - sudo ./check generic/344
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- - sudo ./check generic/376
- - sudo ./check generic/393
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- - sudo ./check generic/405
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- - sudo ./check generic/409
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- - sudo ./check generic/437
- - sudo ./check generic/438
- - sudo ./check generic/441
- - sudo ./check generic/443
- - sudo ./check generic/448
- - sudo ./check generic/450
- - sudo ./check generic/451
- - sudo ./check generic/452
--- a/fs/exfat/.travis_cmd_wrapper.pl
+++ b/fs/exfat/.travis_cmd_wrapper.pl
@ -1,65 +0,0 @@
-#!/usr/bin/perl
-
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-# Copyright (C) 2019 Samsung Electronics Co., Ltd.
-#
-
-use strict;
-
-sub tweak_sysctl()
-{
-	`sudo sysctl kernel.hardlockup_panic=0`;
-	`sudo sysctl kernel.hung_task_panic=0`;
-	`sudo sysctl kernel.panic=128`;
-	`sudo sysctl kernel.panic_on_io_nmi=0`;
-	`sudo sysctl kernel.panic_on_oops=0`;
-	`sudo sysctl kernel.panic_on_rcu_stall=0`;
-	`sudo sysctl kernel.panic_on_unrecovered_nmi=0`;
-	`sudo sysctl kernel.panic_on_warn=0`;
-	`sudo sysctl kernel.softlockup_panic=0`;
-	`sudo sysctl kernel.unknown_nmi_panic=0`;
-}
-
-sub execute($$)
-{
-	my $cmd = shift;
-	my $timeout = shift;
-	my $output = "Timeout";
-	my $status = 1;
-
-	$timeout = 8 * 60 if (!defined $timeout);
-
-	tweak_sysctl();
-
-	eval {
-		local $SIG{ALRM} = sub {
-			print "TIMEOUT:\n";
-			system("top -n 1"), print "top\n";
-			system("free"), print "free\n";
-			system("dmesg"), print "dmesg\n";
-			die "Timeout\n";
-		};
-
-		print "Executing $cmd with timeout $timeout\n";
-
-		alarm $timeout;
-		$output = `$cmd`;
-		$status = $?;
-		alarm 0;
-		print $output."\n";
-		print "Finished: status $status\n";
-	};
-
-	if ($@) {
-		die unless $@ eq "Timeout\n";
-	}
-}
-
-if (! defined $ARGV[0]) {
-	print "Usage:\n\t./.travis_cmd_wrapper.pl command [timeout seconds]\n";
-	exit 1;
-}
-
-execute($ARGV[0], $ARGV[1]);
--- a/fs/exfat/.travis_get_mainline_kernel
+++ b/fs/exfat/.travis_get_mainline_kernel
@ -1,37 +0,0 @@
-#!/bin/sh
-
-#
-# A simple script we are using to get the latest mainline kernel
-# tar ball
-#
-
-wget https://www.kernel.org/releases.json
-if [ $? -ne 0 ]; then
-	echo "Could not download kernel.org/releases.json"
-	exit 1
-fi
-
-VER=$(cat releases.json | python2.7 -c "import sys, json; print json.load(sys.stdin)['latest_stable']['version']")
-if [ $? -ne 0 ]; then
-	echo "Could not parse release.json"
-	exit 1
-fi
-
-if [ "z$VER" = "z" ]; then
-	echo "Could not determine latest release version"
-	exit 1
-fi
-
-wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-"$VER".tar.gz
-if [ $? -ne 0 ]; then
-	echo "Could not download $VER kernel version"
-	exit 1
-fi
-
-tar xf linux-"$VER".tar.gz
-if [ $? -ne 0 ]; then
-	echo "Could not untar kernel tar ball"
-	exit 1
-fi
-
-mv linux-"$VER" linux
--- a/fs/exfat/Makefile
+++ b/fs/exfat/Makefile
@ -2,39 +2,7 @@
 #
 # Makefile for the linux exFAT filesystem support.
 #
-ifneq ($(KERNELRELEASE),)
 obj-$(CONFIG_EXFAT_FS) += exfat.o

 exfat-y	:= inode.o namei.o dir.o super.o fatent.o cache.o nls.o misc.o \
 	   file.o balloc.o
-else
-# Called from external kernel module build
-
-KERNELRELEASE	?= $(shell uname -r)
-KDIR	?= /lib/modules/${KERNELRELEASE}/build
-MDIR	?= /lib/modules/${KERNELRELEASE}
-PWD	:= $(shell pwd)
-
-export CONFIG_EXFAT_FS := m
-
-all:
-	$(MAKE) -C $(KDIR) M=$(PWD) modules
-
-clean:
-	$(MAKE) -C $(KDIR) M=$(PWD) clean
-
-help:
-	$(MAKE) -C $(KDIR) M=$(PWD) help
-
-install: exfat.ko
-	rm -f ${MDIR}/kernel/fs/exfat/exfat.ko
-	install -m644 -b -D exfat.ko ${MDIR}/kernel/fs/exfat/exfat.ko
-	depmod -aq
-
-uninstall:
-	rm -rf ${MDIR}/kernel/fs/exfat
-	depmod -aq
-
-endif
-
-.PHONY : all clean install uninstall
--- a/fs/exfat/README.md
+++ b/fs/exfat/README.md
@ -1,53 +0,0 @@
-## exFAT filesystem 
-This is the exfat filesystem for support from the linux 4.1 kernel
-to the latest kernel. 
-
-## Installing as a stand-alone module
-
-Install prerequisite package for Fedora, RHEL:
-```
-	yum install kernel-devel-$(uname -r)
-```
-
-Build step:
-```
-	make
-	sudo make install
-```
-
-To load the driver manually, run this as root:
-```
-	modprobe exfat
-```
-
-
-## Installing as a part of the kernel
-
-1. Let's take [linux] as the path to your kernel source dir.
-```
-	cd [linux]
-	cp -ar exfat [linux]/fs/
-```
-
-2. edit [linux]/fs/Kconfig
-```
-	source "fs/fat/Kconfig"
-	+source "fs/exfat/Kconfig"
-	source "fs/ntfs/Kconfig"
-```
-
-3. edit [linux]/fs/Makefile
-```
-	obj-$(CONFIG_FAT_FS)          += fat/
-	+obj-$(CONFIG_EXFAT_FS)       += exfat/
-	obj-$(CONFIG_BFS_FS)          += bfs/
-```
-4. make menuconfig and set exfat
-```
-	File systems  --->
-		DOS/FAT/NT Filesystems  --->
-			<M> exFAT filesystem support
-			(utf8) Default iocharset for exFAT
-```
-
-build your kernel