Messages in this thread Patch in this message |  | | Date | Thu, 13 Feb 2014 22:09:42 +0800 | From | Fabian Frederick <> | Subject | [PATCH 1/1] sys_sysfs: Add CONFIG_SYSFS_SYSCALL |
| |
sys_sysfs is an obsolete system call no longer supported by libc ... -This patch adds a default CONFIG_SYSFS_SYSCALL=y -Option can be turned off in expert mode. -cond_syscall added to kernel/sys_ni.c
Signed-off-by: Fabian Frederick <fabf@skynet.be> --- fs/filesystems.c | 2 ++ init/Kconfig | 10 ++++++++++ kernel/sys_ni.c | 1 + 3 files changed, 13 insertions(+)
diff --git a/fs/filesystems.c b/fs/filesystems.c index 92567d9..5797d45 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -121,6 +121,7 @@ int unregister_filesystem(struct file_system_type * fs) EXPORT_SYMBOL(unregister_filesystem); +#ifdef CONFIG_SYSFS_SYSCALL static int fs_index(const char __user * __name) { struct file_system_type * tmp; @@ -199,6 +200,7 @@ SYSCALL_DEFINE3(sysfs, int, option, unsigned long, arg1, unsigned long, arg2) } return retval; } +#endif int __init get_filesystem_list(char *buf) { diff --git a/init/Kconfig b/init/Kconfig index 009a797..013d13c 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1290,6 +1290,16 @@ config UID16 help This enables the legacy 16-bit UID syscall wrappers. +config SYSFS_SYSCALL + bool "Sysfs syscall support" if EXPERT + default y + ---help--- + sys_sysfs is an obsolete system call no longer supported in + libc.Note that disabling this option while being more secure breaks + compatibility with other systems. + + If unsure say Y here. + config SYSCTL_SYSCALL bool "Sysctl syscall support" if EXPERT depends on PROC_SYSCTL diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 7078052..74395a9 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -146,6 +146,7 @@ cond_syscall(sys_io_destroy); cond_syscall(sys_io_submit); cond_syscall(sys_io_cancel); cond_syscall(sys_io_getevents); +cond_syscall(sys_sysfs); cond_syscall(sys_syslog); cond_syscall(sys_process_vm_readv); cond_syscall(sys_process_vm_writev); -- 1.8.1.4
|  |