v5.0 patch

[CodeUnit]

For linux-v5.0 this patch is needed (MS_toSB_macros.patch):

index 143b721..7c4d3c2 100644
--- a/exfat_core.c
+++ b/exfat_core.c
@@ -1757,8 +1757,13 @@ void fs_error(struct super_block *sb)

    if (opts->errors == EXFAT_ERRORS_PANIC)
        panic("[EXFAT] Filesystem panic from previous error\n");
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
+        else if ((opts->errors == EXFAT_ERRORS_RO) && !(sb->s_flags & SB_RDONLY)) {
+                sb->s_flags |= SB_RDONLY;
+#else
    else if ((opts->errors == EXFAT_ERRORS_RO) && !(sb->s_flags & MS_RDONLY)) {
        sb->s_flags |= MS_RDONLY;
+#endif
        printk(KERN_ERR "[EXFAT] Filesystem has been set read-only\n");
    }
 }
diff --git a/exfat_super.c b/exfat_super.c
index 312de36..cee7508 100644
--- a/exfat_super.c
+++ b/exfat_super.c
@@ -2080,7 +2090,11 @@ static void exfat_write_super(struct super_block *sb)

    __set_sb_clean(sb);

+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
+   if (!(sb->s_flags & SB_RDONLY))
+#else
    if (!(sb->s_flags & MS_RDONLY))
+#endif
        FsSyncVol(sb, 1);

    __unlock_super(sb);
@@ -2136,7 +2150,11 @@ static int exfat_statfs(struct dentry *dentry, struct kstatfs *buf)

 static int exfat_remount(struct super_block *sb, int *flags, char *data)
 {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
+   *flags |= SB_NODIRATIME;
+#else
    *flags |= MS_NODIRATIME;
+#endif 
    return 0;
 }

@@ -2489,7 +2507,11 @@ static int exfat_fill_super(struct super_block *sb, void *data, int silent)
    mutex_init(&sbi->s_lock);
 #endif
    sb->s_fs_info = sbi;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
+   sb->s_flags |= SB_NODIRATIME;
+#else
    sb->s_flags |= MS_NODIRATIME;
+#endif
    sb->s_magic = EXFAT_SUPER_MAGIC;
    sb->s_op = &exfat_sops;
    sb->s_export_op = &exfat_export_ops;

[SchrodingerZhu]

  CC [M]  /build/bbswitch-0.8/bbswitch.o
  CC [M]  /build/source/exfat_core.o
  CC [M]  /build/source/nvidiabl-module.o
/build/source/exfat_core.c: In function 'fs_error':
/build/source/exfat_core.c:1760:64: error: 'MS_RDONLY' undeclared (first use in this function); did you mean 'IS_RDONLY'?
  else if ((opts->errors == EXFAT_ERRORS_RO) && !(sb->s_flags & MS_RDONLY)) {
                                                                ^~~~~~~~~
                                                                IS_RDONLY
/build/source/exfat_core.c:1760:64: note: each undeclared identifier is reported only once for each function it appears in

Does this patch fix this? @CodeUnit

[CodeUnit]

Yes, it works for me.

[makefu]

@CodeUnit thanks for your efforts? care to create a PR for the issue? i'd love to add your patch to the nixpkgs repository similar to 4.18 and 4.20 support we maintain: https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/linux/exfat/default.nix#L31-L36

[EasyNetDev]

Hi all,

I've forked the project to my github and I've added the patches for 4.18-4.20 and also the patch for >= 5.0. Please take a look https://github.com/AdrianBan/exfat-nofuse . We can try to continue the project here if you are interested. I'm trying to maintain for myself.

Kind regards, Adrian

[makefu]

Hey @AdrianBan thanks for your efforts and your willingness to continue maintain exfat-nofuse. I will prepare an update in nixpkgs.