diff --git a/fs/hpfs/Kconfig b/fs/hpfs/Kconfig index ac1e9318e65a..d3dfbe76be8a 100644 --- a/fs/hpfs/Kconfig +++ b/fs/hpfs/Kconfig @@ -15,3 +15,14 @@ config HPFS_FS To compile this file system support as a module, choose M here: the module will be called hpfs. If unsure, say N. + +config HPFS_FS_ALLOW_NO_ERROR_CHECK_MODE + bool "Allow no-error-check mode for maximum speed" + depends on HPFS_FS + default n + help + This option enables check=none mount option. If check=none is + specified, users can expect maximum speed at the cost of minimum + robustness. Sane users should not specify check=none option, for e.g. + use-after-free bug will happen when the filesystem is corrupted or + crafted. diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c index 42b779b4d87f..558093b2beab 100644 --- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c @@ -285,7 +285,9 @@ static const struct constant_table hpfs_param_case[] = { }; static const struct constant_table hpfs_param_check[] = { +#ifdef CONFIG_HPFS_FS_ALLOW_NO_ERROR_CHECK_MODE {"none", 0}, +#endif {"normal", 1}, {"strict", 2}, {}