kernel.git/arch/s390/kernel, branch linux-2.6.13.y

[PATCH] broken inline asm on s390 (misuse of labels)

2005-08-24T01:43:44Z

use of explicit labels in inline asm is a Bad Idea(tm), since gcc can decide to inline the function in several places. Fixed by use of 1f/f: instead of .Lfitsin/.Lfitsin: Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

[PATCH] s390: ioprio & inotify system calls.

2005-08-02T04:37:59Z

Add system calls for io priorities and inotify. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] s390: kexec fixes and improvements.

2005-08-02T04:37:59Z

Disable pseudo page fault handling before starting the new kernel and try to use diag308 to reset the machine. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] s390: check for interrupt before waiting

2005-07-29T22:01:14Z

The patch that introduced waiting for interrupts after resetting the reader can cause the boot to fail because the system is waiting for an interrupt that will never arrive. Add code to check if an interrupt is supposed to arrive before waiting endlessly. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] s390: cpu timer reset in machine check handler

2005-07-27T23:26:05Z

Fix wrong move direction of timer values for cpu accounting in case of a machine check that indicates a broken cpu timer. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] s390: 31 bit memory size limit

2005-07-27T23:26:05Z

Limit reported memory size to 2GB if running in 31 bit mode. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] s390: external call performance

2005-07-27T23:26:04Z

The kernel uses the SIGP external call order code to signal other CPUs. When running with dedicated CPUs external calls don't get delivered immediately but within a fixed polling invervall. This can lead to delays where the system appears to do nothing. Replace the SIGP external call order with the SIGP emergency call order since this one gets delivered immediately. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] s390: spin lock retry

2005-07-27T23:26:04Z

Split spin lock and r/w lock implementation into a single try which is done inline and an out of line function that repeatedly tries to get the lock before doing the cpu_relax(). Add a system control to set the number of retries before a cpu is yielded. The reason for the spin lock retry is that the diagnose 0x44 that is used to give up the virtual cpu is quite expensive. For spin locks that are held only for a short period of time the costs of the diagnoses outweights the savings for spin locks that are held for a longer timer. The default retry count is 1000. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Don't export machine_restart, machine_halt, or machine_power_off.

2005-07-26T21:35:42Z

machine_restart, machine_halt and machine_power_off are machine specific hooks deep into the reboot logic, that modules have no business messing with. Usually code should be calling kernel_restart, kernel_halt, kernel_power_off, or emergency_restart. So don't export machine_restart, machine_halt, and machine_power_off so we can catch buggy users. Signed-off-by: Eric W. Biederman Signed-off-by: Linus Torvalds

[PATCH] s390: fadvise hint values.

2005-07-13T18:25:24Z

Add special case for the POSIX_FADV_DONTNEED and POSIX_FADV_NOREUSE hint values for s390-64. The user space values in the s390-64 glibc headers for these two defines have always been 6 and 7 instead of 4 and 5. All 64 bit applications therefore use the "wrong" values. To get these applications working without recompiling the kernel needs to accept the "wrong" values. Since the values for s390-31 are 4 and 5 the compat wrapper for fadvise64 and fadvise64_64 need to rewrite the values for 31 bit system calls. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds