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Clarify return code on getpinfo()

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Remzi Arpaci-Dusseau
2018-02-28 19:07:54 -06:00
parent bf0dad8e3b
commit f8da2af3e7
1 changed files with 3 additions and 1 deletions
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scheduling-xv6-lottery/README.md
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@@ -32,7 +32,9 @@ information about all running processes, including how many times each has
been chosen to run and the process ID of each. You can use this system call to been chosen to run and the process ID of each. You can use this system call to
build a variant of the command line program `ps`, which can then be called to build a variant of the command line program `ps`, which can then be called to
see what is going on. The structure `pstat` is defined below; note, you cannot see what is going on. The structure `pstat` is defined below; note, you cannot
change this structure, and must use it exactly as is. change this structure, and must use it exactly as is. This routine should
return 0 if successful, and -1 otherwise (if, for example, a bad or NULL
pointer is passed into the kernel).
Most of the code for the scheduler is quite localized and can be found in Most of the code for the scheduler is quite localized and can be found in
`proc.c`; the associated header file, `proc.h` is also quite useful to `proc.c`; the associated header file, `proc.h` is also quite useful to