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fs: sdfat: Add config option to register sdFAT for exFAT 

Change-Id: Id57abf0a4bd0b433fecc622eecb383cd4ea29d17
Signed-off-by: Paul Keith <javelinanddart@gmail.com>
This commit is contained in:
Paul Keith 2018-03-02 04:51:53 +01:00 committed by Andreas Schneider
parent f82a5dff05
commit 2df38135b5
2 changed files with 32 additions and 1 deletions
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7
Kconfig
View File

@ -15,6 +15,13 @@ config SDFAT_FS
To compile this as a module, choose M here: the module will be called To compile this as a module, choose M here: the module will be called
sdfat_core and sdfat_fs. sdfat_core and sdfat_fs.
config SDFAT_USE_FOR_EXFAT
bool "Register sdFAT as exFAT"
default y
depends on SDFAT_FS && !EXFAT_FS
help
If you want to register sdFAT as available for exFAT, say Y.
config SDFAT_DELAYED_META_DIRTY config SDFAT_DELAYED_META_DIRTY
bool "Enable delayed metadata dirty" bool "Enable delayed metadata dirty"
default y default y

26
sdfat.c
View File

@ -4975,6 +4975,20 @@ static struct file_system_type sdfat_fs_type = {
.fs_flags = FS_REQUIRES_DEV, .fs_flags = FS_REQUIRES_DEV,
}; };
#ifdef CONFIG_SDFAT_USE_FOR_EXFAT
static struct file_system_type exfat_fs_type = {
.owner = THIS_MODULE,
.name = "exfat",
.mount = sdfat_fs_mount,
#ifdef CONFIG_SDFAT_DBG_IOCTL
.kill_sb = sdfat_debug_kill_sb,
#else
.kill_sb = kill_block_super,
#endif /* CONFIG_SDFAT_DBG_IOCTL */
.fs_flags = FS_REQUIRES_DEV,
};
#endif /* CONFIG_SDFAT_USE_FOR_EXFAT */
static int __init init_sdfat_fs(void) static int __init init_sdfat_fs(void)
{ {
int err; int err;
@ -5013,6 +5027,14 @@ static int __init init_sdfat_fs(void)
goto error; goto error;
} }
#ifdef CONFIG_SDFAT_USE_FOR_EXFAT
err = register_filesystem(&exfat_fs_type);
if (err) {
pr_err("[SDFAT] failed to register for exfat filesystem\n");
goto error;
}
#endif /* CONFIG_SDFAT_USE_FOR_EXFAT */
return 0; return 0;
error: error:
sdfat_statistics_uninit(); sdfat_statistics_uninit();
@ -5042,7 +5064,9 @@ static void __exit exit_sdfat_fs(void)
sdfat_destroy_inodecache(); sdfat_destroy_inodecache();
unregister_filesystem(&sdfat_fs_type); unregister_filesystem(&sdfat_fs_type);
#ifdef CONFIG_SDFAT_USE_FOR_EXFAT
unregister_filesystem(&exfat_fs_type);
#endif /* CONFIG_SDFAT_USE_FOR_EXFAT */
fsapi_shutdown(); fsapi_shutdown();
} }