Merge pull request #3 from namjaejeon/exfat-next

Exfat next

.travis.yml

@@ -70,7 +70,6 @@ script:
  - sudo losetup /dev/loop21 test.img
  - sudo mkfs.exfat -c 4 /dev/loop20
  - sudo mkfs.exfat -c 4 /dev/loop21
- - sudo make uninstall
  - cd ..
  - cd exfat-testsuites/
  - tar xzvf xfstests-exfat.tgz > /dev/null

README.md

@@ -1,2 +1,53 @@
-# exfat
-linux-exfat for 4.1 ~ the latest linus-tree
+## 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

super.c

@@ -249,7 +249,27 @@ enum {
 	Opt_time_offset,
 };
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
+static const struct constant_table exfat_param_enums[] = {
+	{ "continue",		EXFAT_ERRORS_CONT },
+	{ "panic",		EXFAT_ERRORS_PANIC },
+	{ "remount-ro",		EXFAT_ERRORS_RO },
+	{}
+};
+#else
+static const struct fs_parameter_enum exfat_param_enums[] = {
+	{ Opt_errors,	"continue",		EXFAT_ERRORS_CONT },
+	{ Opt_errors,	"panic",		EXFAT_ERRORS_PANIC },
+	{ Opt_errors,	"remount-ro",		EXFAT_ERRORS_RO },
+	{}
+};
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
+static const struct fs_parameter_spec exfat_parameters[] = {
+#else
 static const struct fs_parameter_spec exfat_param_specs[] = {
+#endif
 	fsparam_u32("uid",			Opt_uid),
 	fsparam_u32("gid",			Opt_gid),
 	fsparam_u32oct("umask",			Opt_umask),
@@ -257,24 +277,23 @@ static const struct fs_parameter_spec exfat_param_specs[] = {
 	fsparam_u32oct("fmask",			Opt_fmask),
 	fsparam_u32oct("allow_utime",		Opt_allow_utime),
 	fsparam_string("iocharset",		Opt_charset),
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
+	fsparam_enum("errors",			Opt_errors, exfat_param_enums),
+#else
 	fsparam_enum("errors",			Opt_errors),
+#endif
 	fsparam_flag("discard",			Opt_discard),
 	fsparam_s32("time_offset",		Opt_time_offset),
 	{}
 };
 
-static const struct fs_parameter_enum exfat_param_enums[] = {
-	{ Opt_errors,	"continue",		EXFAT_ERRORS_CONT },
-	{ Opt_errors,	"panic",		EXFAT_ERRORS_PANIC },
-	{ Opt_errors,	"remount-ro",		EXFAT_ERRORS_RO },
-	{}
-};
-
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(5, 5, 0)
 static const struct fs_parameter_description exfat_parameters = {
 	.name		= "exfat",
 	.specs		= exfat_param_specs,
 	.enums		= exfat_param_enums,
 };
+#endif
 
 static int exfat_parse_param(struct fs_context *fc, struct fs_parameter *param)
 {
@@ -283,7 +302,11 @@ static int exfat_parse_param(struct fs_context *fc, struct fs_parameter *param)
 	struct fs_parse_result result;
 	int opt;
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
+	opt = fs_parse(fc, exfat_parameters, param, &result);
+#else
 	opt = fs_parse(fc, &exfat_parameters, param, &result);
+#endif
 	if (opt < 0)
 		return opt;
 
@@ -893,7 +916,11 @@ static struct file_system_type exfat_fs_type = {
 	.name			= "exfat",
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
 	.init_fs_context	= exfat_init_fs_context,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
+	.parameters		= exfat_parameters,
+#else
 	.parameters		= &exfat_parameters,
+#endif
 #else
 	.mount			= exfat_fs_mount,
 #endif