diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-11-02 12:51:45 +0100 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-11-08 09:47:54 +0100 |
| commit | 978fa72e82e375764e6e31e7a721408c5186918f (patch) | |
| tree | 97daef99cbf741988930e3dfff70081bbdeeb808 /arch/s390/include | |
| parent | f44fa88745eda1530083b361e300e1ca4e15a6c5 (diff) | |
s390: remove named saved segment support
Remove the support to create a z/VM named saved segment (NSS). This
feature is not supported since quite a while in favour of jump labels,
function tracing and (now) CPU alternatives. All of these features
require to write to the kernel text section which is not possible if
the kernel is contained within an NSS.
Given that memory savings are minimal if kernel images are shared and
in addition updates of shared images are painful, the NSS feature can
be removed.
Reviewed-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/ipl.h | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/sections.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/setup.h | 3 |
3 files changed, 3 insertions, 5 deletions
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index 6810bd757312..c40cb348dd79 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -12,6 +12,8 @@ #include <asm/cio.h> #include <asm/setup.h> +#define NSS_NAME_SIZE 8 + #define IPL_PARMBLOCK_ORIGIN 0x2000 #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ @@ -105,7 +107,6 @@ extern size_t append_ipl_scpdata(char *, size_t); enum { IPL_DEVNO_VALID = 1, IPL_PARMBLOCK_VALID = 2, - IPL_NSS_VALID = 4, }; enum ipl_type { diff --git a/arch/s390/include/asm/sections.h b/arch/s390/include/asm/sections.h index fbd9116eb17b..cd68bf115889 100644 --- a/arch/s390/include/asm/sections.h +++ b/arch/s390/include/asm/sections.h @@ -3,6 +3,6 @@ #include <asm-generic/sections.h> -extern char _eshared[], _ehead[]; +extern char _ehead[]; #endif diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 490e035b3716..fb3c4a138ae3 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -97,9 +97,6 @@ extern char vmpoff_cmd[]; #define SET_CONSOLE_VT220 do { console_mode = 4; } while (0) #define SET_CONSOLE_HVC do { console_mode = 5; } while (0) -#define NSS_NAME_SIZE 8 -extern char kernel_nss_name[]; - #ifdef CONFIG_PFAULT extern int pfault_init(void); extern void pfault_fini(void); |