lkml.org 
[lkml]   [2010]   [Sep]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: asm-generic/unistd.h and glibc use of NR_ipc
    On Tue, Sep 28, 2010 at 09:05:13AM -0400, Chris Metcalf wrote:
    > Another point where I'd appreciate guidance from libc-alpha is the sysctl()
    > and ustat() APIs. The corresponding system calls are missing from
    > <asm-generic/unistd.h>, since they are deprecated and their functionality
    > is better provided by other means (/proc/sys, fstat). So I've simply had
    > them return -1 with errno == ENOSYS. Is there any reason to think they
    > merit more substantial work? One could imagine baking in some horrible
    > mapping of "integer names" into path components for a sysctl()
    > implementation and reading /proc/sys to provide results, or walking all of
    > the mount points looking for a matching device number to pass a name to
    > fstat(), but I'm not sure it's worth the bloat to the library.

    fstat does not replace ustat. ustat is a statf-subsystem by dev_t and
    is not replaced by anything. xfsprogs for example uses it to check if
    a given dev_t is currently mounted. Please add it to the generic code.



    \
     
     \ /
      Last update: 2010-09-29 09:51    [W:3.281 / U:0.244 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site