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Linus Torvalds <torvalds@linux-foundation.org> writes: > > Well, it turns out that Ingo's fixed statistics actually put the real cost > in fcntl/ioctl/open/release: > > 310 down <= lock_kernel <= sys_fcntl <= system_call_after_swapgs < That must be ->fasync? If it was file locks the lock_kernel would not be inlined into sys_fcntl. Or is that an truncated back trace? -Andi (wondering if he should plug ->fasync_unlocked again ...) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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