From: Stefani Seibold stef...@seibold.net
This small patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() support to the VDSO for x86 32-bit kernels.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time time stamp
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time time stamp, without knowing the pitfalls
From: Stefani Seibold stef...@seibold.net
To build a proper VDSO for 64 bit and 32 bit from the same source, some
header cleanup is necessary, otherwise a gcc -m32 will produce a lot
of errors and warnings due the differents with LP64 and LP32.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
Create a seperate seqcount.h file which handles only seqcount. This file
is save to include in VDSO, since there is no in-kernel functionality
like spinlock in use. seqlock.h still includes seqcount.h, so there is no
side effect for current users.
Signed
From: Stefani Seibold stef...@seibold.net
To make the vsyscall_gtod_data available for both VDSO (X86_64 and
IA32_EMULATION) the alignment must be set to 4. Otherwise the code
create with gcc -m32 will fail, since the structure alignment in 32
bit mode ist 4 byte.
There is currently no drawback
From: Stefani Seibold stef...@seibold.net
This patch adds support for 32 bit VDSO.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
For 32 bit programs running under a 64 bit IA32_EMULATION, it is a
little bit more
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time time stamp, without knowing the pitfalls
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c and make the functions
available for x86 32 bit kernels.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/Kconfig
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer to the vma
which was created or a error code in an ERR_PTR()
The install_special_mapping() will unscramble this to the old
From: Stefani Seibold stef...@seibold.net
This small patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() support to the VDSO for x86 32-bit kernels.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time time stamp
From: Stefani Seibold stef...@seibold.net
This patch move the kfifo.c file from kernel/ to lib/
Signed-off-by: Stefani Seibold stef...@seibold.net
---
kernel/Makefile | 2 +-
lib/Makefile| 2 +-
{kernel = lib}/kfifo.c | 0
3 files changed, 2 insertions(+), 2 deletions
From: Stefani Seibold stef...@seibold.net
This patch fix the kfifo_alloc() and kfifo_init() to alloc at least the
requested number of elements. Since the kfifo operates on power of 2 the
request size will be rounded up to the next power of two.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
As requested by Andrew Morton
- move the kfifo.c file from kernel/ to lib/ and
- fix the kfifo_alloc() and kfifo_init() to alloc at least the requested number
of elements
Signed-off-by: Stefani Seibold stef...@seibold.net
--
To unsubscribe from
From: Stefani Seibold stef...@seibold.net
As requested by Andrew Morton
- move the kfifo.c file from kernel/ to lib/ and
- fix the kfifo_alloc() and kfifo_init() to alloc at least the requested number
of elements
Signed-off-by: Stefani Seibold stef...@seibold.net
--
To unsubscribe from
From: Stefani Seibold stef...@seibold.net
This patch move the kfifo.c file from kernel/ to lib/
Signed-off-by: Stefani Seibold stef...@seibold.net
---
kernel/Makefile | 2 +-
lib/Makefile| 2 +-
{kernel = lib}/kfifo.c | 0
3 files changed, 2 insertions(+), 2 deletions
From: Stefani Seibold stef...@seibold.net
This patch fix the kfifo_alloc() and kfifo_init() to alloc at least the
requested number of elements. Since the kfifo operates on power of 2 the
request size will be rounded up to the next power of two.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This small patch adds a runtime prctl config option for a per process wide
close on exec without breaking existing code.
With this feature a developer can decide if the application will pass all non
close on exec file descriptors to a new process
the compat vdso.
- Stefani
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
will add another 500 bytes.
But this is not a real solution, at least when vcpu function support
will be added, then the code size will exceed the page size. Reserving
two pages for the VDSO is a good option.
- Stefani
--
To unsubscribe from this list: send the line unsubscribe linux-kernel
Zitat von H. Peter Anvin h...@linux.intel.com:
On 03/10/2014 01:03 PM, Stefani Seibold wrote:
What is now the next step? Kick out the compat VDSO? Or should i
implement the dual VDSO. And what is now the preferred way to map the
VDSO into the user space? Using install_special_mapping
there is a solution i already
announced.
A dual VDSO: a one page sized VDSO for the compat mode which has only
the syscall
code and on multi page sized VDSO which is mapped into user space for
the non compat
mode.
This will work and has no side effects.
- Stefani
--
To unsubscribe from this list: send
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This patch revamp the vvar.h for introduce the VVAR macro for vdso32.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/include/asm/vvar.h | 14 --
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is some type hacking necessary for optimal
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold Stefani Seibold stef...@seibold.net
---
arch/x86
From: Stefani Seibold stef...@seibold.net
This patch revamp the vvar.h for introduce the VVAR macro for vdso32.
Signed-off-by: Stefani Seibold Stefani Seibold stef...@seibold.net
---
arch/x86/include/asm/vvar.h | 14 --
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold Stefani Seibold stef
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is some type hacking necessary for optimal
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is a lot of type hacking necessary.
This kind
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is a lot of type hacking necessary.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is a lot of type hacking necessary.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is a lot of type hacking necessary.
Signed-off
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch revamp the vvar.h for introduce the VVAR macro for vdso32.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/include/asm/vvar.h | 32 +---
1 file changed, 21 insertions(+), 11 deletions(-)
diff --git
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is a lot of type hacking necessary
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch revamp the vvar.h for introduce the VVAR macro for vdso32.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/include/asm/vvar.h | 32 +---
1 file changed, 21 insertions(+), 11 deletions(-)
diff --git
From: Stefani Seibold stef...@seibold.net
This patch add the VDSO time support for the IA32 Emulation Layer.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is some type hacking necessary
From: Stefani Seibold stef...@seibold.net
There a currently more than 30 users of the gtod macro, so replace the
last VVAR(vsyscall_gtod_data) by gtod macro.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso/vclock_gettime.c | 6 +++---
1 file changed, 3 insertions(+), 3
From: Stefani Seibold stef...@seibold.net
This patch do a little cleanup for the __vdso_gettimeofday() function.
It kick out an unneeded ret local variable and makes the code faster if
only the timezone is needed.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
This intermediate patch revamps the vclock_gettime.c by moving some functions
around. It is only for spliting purpose, to make whole the 32 bit vdso timer
patch easier to review.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86/vdso
From: Stefani Seibold stef...@seibold.net
This patch is a small code cleanup for the __vdso_clock_gettime() function.
It removes the unneeded return values from do_monotonic_coarse() and
do_realtime_coarse() and add a fallback label for doing the kernel
gettimeofday() system call.
Signed-off
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This patch add the time support for 32 bit a VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
From: Stefani Seibold stef...@seibold.net
The _install_special_mapping() is the new base function for
install_special_mapping(). This function will return a pointer of the
created VMA or a error code in an ERR_PTR()
This new function will be needed by the for the vdso 32 bit support to map
From: Stefani Seibold stef...@seibold.net
This patch move the vsyscall_gtod_data handling out of vsyscall_64.c
into an additonal file vsyscall_gtod.c to make the functionality
available for x86 32 bit kernel.
It also adds a new vsyscall_32.c which setup the VVAR page.
Signed-off-by: Stefani
From: Stefani Seibold stef...@seibold.net
This patch add the functions vdso_gettimeofday(), vdso_clock_gettime()
and vdso_time() to the 32 bit VDSO.
The reason to do this was to get a fast reliable time stamp. Many developers
uses TSC to get a fast time stamp, without knowing the pitfalls. VDSO
From: Stefani Seibold stef...@seibold.net
This patch add the support for 32 bit VDSO to a 32 bit kernel.
For 32 bit programs running on a 32 bit kernel, the same mechanism is
used as for 64 bit programs running on a 64 bit kernel.
Signed-off-by: Stefani Seibold stef...@seibold.net
---
arch/x86
From: Stefani Seibold stef...@seibold.net
This patch add the support for the IA32 Emulation Layer to run 32 bit
applications on a 64 bit kernel.
Due the nature of the kernel headers and the LP64 compiler where the
size of a long and a pointer differs against a 32 bit compiler, there
is a lot
devices on this bus. This is what i do with a echo 1
/sys/bus/pci/drivers/xhci_hcd/0001:03:00.0/reset before the kexec.
- Stefani
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http
in the shutdown path, which will
never called when doing a forced kexec.
Hi, Stefani.
Did you try with both patches applied? How do you evoke the forced
kexec? Is that a kexec on panic? Does it really need to be forced? With
no clean shutdown, platform and drivers would need to issue resets, like
1 - 100 of 762 matches
Mail list logo
