35d5d08a08
Marin Mitov points out that delay_tsc() can misbehave if it is preempted and rescheduled on a different CPU which has a skewed TSC. Fix it by disabling preemption. (I assume that the worst-case behaviour here is a stall of 2^32 cycles) Cc: Andi Kleen <ak@suse.de> Cc: Marin Mitov <mitov@issp.bas.bg> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| Makefile | ||
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| Makefile_64 | ||
| bitops_32.c | ||
| bitops_64.c | ||
| bitstr_64.c | ||
| checksum_32.S | ||
| clear_page_64.S | ||
| copy_page_64.S | ||
| copy_user_64.S | ||
| copy_user_nocache_64.S | ||
| csum-copy_64.S | ||
| csum-partial_64.c | ||
| csum-wrappers_64.c | ||
| delay_32.c | ||
| delay_64.c | ||
| getuser_32.S | ||
| getuser_64.S | ||
| io_64.c | ||
| iomap_copy_64.S | ||
| memcpy_32.c | ||
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| memmove_64.c | ||
| memset_64.S | ||
| mmx_32.c | ||
| msr-on-cpu.c | ||
| putuser_32.S | ||
| putuser_64.S | ||
| rwlock_64.S | ||
| semaphore_32.S | ||
| string_32.c | ||
| strstr_32.c | ||
| thunk_64.S | ||
| usercopy_32.c | ||
| usercopy_64.c | ||