From 6224a96c653cc660c57f3b0a1acad20db289d145 Mon Sep 17 00:00:00 2001 From: Paul Keith Date: Fri, 2 Mar 2018 04:51:53 +0100 Subject: [PATCH] fs: sdfat: Add config option to register sdFAT for exFAT Change-Id: Id57abf0a4bd0b433fecc622eecb383cd4ea29d17 Signed-off-by: Paul Keith --- fs/sdfat/Kconfig | 7 +++++++ fs/sdfat/sdfat.c | 26 ++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/fs/sdfat/Kconfig b/fs/sdfat/Kconfig index e849b25af347..62eb87bab6f6 100644 --- a/fs/sdfat/Kconfig +++ b/fs/sdfat/Kconfig @@ -15,6 +15,13 @@ config SDFAT_FS To compile this as a module, choose M here: the module will be called 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 bool "Enable delayed metadata dirty" default y diff --git a/fs/sdfat/sdfat.c b/fs/sdfat/sdfat.c index 516e15129cf5..3907d6604f62 100644 --- a/fs/sdfat/sdfat.c +++ b/fs/sdfat/sdfat.c @@ -5177,6 +5177,20 @@ static struct file_system_type sdfat_fs_type = { .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) { int err; @@ -5219,6 +5233,14 @@ static int __init init_sdfat_fs(void) 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; error: sdfat_uevent_uninit(); @@ -5258,6 +5280,10 @@ static void __exit exit_sdfat_fs(void) sdfat_destroy_inodecache(); unregister_filesystem(&sdfat_fs_type); +#ifdef CONFIG_SDFAT_USE_FOR_EXFAT + unregister_filesystem(&exfat_fs_type); +#endif /* CONFIG_SDFAT_USE_FOR_EXFAT */ + fsapi_shutdown(); } -- 2.20.1