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fs: exfat: Add support for building inside kernel
Change-Id: I963dfd24ffbb488efcbb7a504e9b811f54adcff7 Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com> Signed-off-by: azrim <mirzaspc@gmail.com>
This commit is contained in:
UtsavBalar1231
azrim
parent
9ece1cd8bd
commit
71153430f2
@ -128,6 +128,7 @@ if BLOCK
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menu "DOS/FAT/NT Filesystems"
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source "fs/fat/Kconfig"
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source "fs/exfat/Kconfig"
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source "fs/ntfs/Kconfig"
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endmenu
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@ -80,6 +80,7 @@ obj-$(CONFIG_HUGETLBFS) += hugetlbfs/
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obj-$(CONFIG_CODA_FS) += coda/
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obj-$(CONFIG_MINIX_FS) += minix/
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obj-$(CONFIG_FAT_FS) += fat/
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obj-$(CONFIG_EXFAT_FS) += exfat/
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obj-$(CONFIG_BFS_FS) += bfs/
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obj-$(CONFIG_ISO9660_FS) += isofs/
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obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
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@ -1,65 +0,0 @@
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#!/usr/bin/perl
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# Copyright (C) 2019 Samsung Electronics Co., Ltd.
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#
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use strict;
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sub tweak_sysctl()
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{
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`sudo sysctl kernel.hardlockup_panic=0`;
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`sudo sysctl kernel.hung_task_panic=0`;
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`sudo sysctl kernel.panic=128`;
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`sudo sysctl kernel.panic_on_io_nmi=0`;
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`sudo sysctl kernel.panic_on_oops=0`;
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`sudo sysctl kernel.panic_on_rcu_stall=0`;
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`sudo sysctl kernel.panic_on_unrecovered_nmi=0`;
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`sudo sysctl kernel.panic_on_warn=0`;
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`sudo sysctl kernel.softlockup_panic=0`;
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`sudo sysctl kernel.unknown_nmi_panic=0`;
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}
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sub execute($$)
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{
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my $cmd = shift;
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my $timeout = shift;
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my $output = "Timeout";
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my $status = 1;
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$timeout = 8 * 60 if (!defined $timeout);
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tweak_sysctl();
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eval {
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local $SIG{ALRM} = sub {
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print "TIMEOUT:\n";
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system("top -n 1"), print "top\n";
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system("free"), print "free\n";
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system("dmesg"), print "dmesg\n";
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die "Timeout\n";
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};
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print "Executing $cmd with timeout $timeout\n";
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alarm $timeout;
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$output = `$cmd`;
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$status = $?;
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alarm 0;
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print $output."\n";
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print "Finished: status $status\n";
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};
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if ($@) {
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die unless $@ eq "Timeout\n";
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}
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}
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if (! defined $ARGV[0]) {
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print "Usage:\n\t./.travis_cmd_wrapper.pl command [timeout seconds]\n";
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exit 1;
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}
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execute($ARGV[0], $ARGV[1]);
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@ -1,37 +0,0 @@
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#!/bin/sh
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#
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# A simple script we are using to get the latest mainline kernel
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# tar ball
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#
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wget https://www.kernel.org/releases.json
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if [ $? -ne 0 ]; then
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echo "Could not download kernel.org/releases.json"
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exit 1
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fi
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VER=$(cat releases.json | python2.7 -c "import sys, json; print json.load(sys.stdin)['latest_stable']['version']")
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if [ $? -ne 0 ]; then
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echo "Could not parse release.json"
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exit 1
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fi
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if [ "z$VER" = "z" ]; then
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echo "Could not determine latest release version"
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exit 1
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fi
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wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-"$VER".tar.gz
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if [ $? -ne 0 ]; then
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echo "Could not download $VER kernel version"
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exit 1
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fi
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tar xf linux-"$VER".tar.gz
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if [ $? -ne 0 ]; then
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echo "Could not untar kernel tar ball"
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exit 1
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fi
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mv linux-"$VER" linux
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@ -2,39 +2,7 @@
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#
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# Makefile for the linux exFAT filesystem support.
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#
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ifneq ($(KERNELRELEASE),)
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obj-$(CONFIG_EXFAT_FS) += exfat.o
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exfat-y := inode.o namei.o dir.o super.o fatent.o cache.o nls.o misc.o \
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file.o balloc.o
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else
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# Called from external kernel module build
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KERNELRELEASE ?= $(shell uname -r)
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KDIR ?= /lib/modules/${KERNELRELEASE}/build
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MDIR ?= /lib/modules/${KERNELRELEASE}
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PWD := $(shell pwd)
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export CONFIG_EXFAT_FS := m
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all:
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$(MAKE) -C $(KDIR) M=$(PWD) modules
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clean:
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$(MAKE) -C $(KDIR) M=$(PWD) clean
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help:
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$(MAKE) -C $(KDIR) M=$(PWD) help
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install: exfat.ko
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rm -f ${MDIR}/kernel/fs/exfat/exfat.ko
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install -m644 -b -D exfat.ko ${MDIR}/kernel/fs/exfat/exfat.ko
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depmod -aq
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uninstall:
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rm -rf ${MDIR}/kernel/fs/exfat
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depmod -aq
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endif
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.PHONY : all clean install uninstall
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@ -1,53 +0,0 @@
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## exFAT filesystem
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This is the exfat filesystem for support from the linux 4.1 kernel
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to the latest kernel.
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## Installing as a stand-alone module
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Install prerequisite package for Fedora, RHEL:
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```
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yum install kernel-devel-$(uname -r)
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```
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Build step:
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```
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make
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sudo make install
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```
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To load the driver manually, run this as root:
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```
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modprobe exfat
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```
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## Installing as a part of the kernel
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1. Let's take [linux] as the path to your kernel source dir.
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```
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cd [linux]
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cp -ar exfat [linux]/fs/
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```
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2. edit [linux]/fs/Kconfig
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```
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source "fs/fat/Kconfig"
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+source "fs/exfat/Kconfig"
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source "fs/ntfs/Kconfig"
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```
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3. edit [linux]/fs/Makefile
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```
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obj-$(CONFIG_FAT_FS) += fat/
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+obj-$(CONFIG_EXFAT_FS) += exfat/
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obj-$(CONFIG_BFS_FS) += bfs/
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```
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4. make menuconfig and set exfat
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```
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File systems --->
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DOS/FAT/NT Filesystems --->
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<M> exFAT filesystem support
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(utf8) Default iocharset for exFAT
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```
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build your kernel
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