Re: [PATCH] to allow sys_pread64 and sys_pwrite64 to be used from modules

From: Luke Kenneth Casson Leighton (lkcl_at_lkcl.net)
Date: 09/29/04

  • Next message: Lee Revell: "Re: [patch] voluntary-preempt-2.6.9-rc2-mm4-S7" 
    Date:	Wed, 29 Sep 2004 18:52:04 +0100
To: linux-kernel@vger.kernel.org

    scratch that: i found that vfs_read along with filp_open and filp_close
    would do the job.

    having a ball :)

    On Wed, Sep 29, 2004 at 01:58:35PM +0100, Luke Kenneth Casson Leighton wrote:
    > i do not know if this does any damage (and i'm going to find out!)
    >
    > i seek to use these two functions from an experimental kernel module: i
    > get warnings about "symbol not found" without this patch:
    >
    >
    > Index: fs/read_write.c
    > ===================================================================
    > RCS file: /cvsroot/selinux/nsa/linux-2.6/fs/read_write.c,v
    > retrieving revision 1.1.1.6
    > diff -u -3 -p -u -r1.1.1.6 read_write.c
    > --- fs/read_write.c 18 Jun 2004 19:30:06 -0000 1.1.1.6
    > +++ fs/read_write.c 29 Sep 2004 12:45:31 -0000
    > @@ -318,6 +318,7 @@ asmlinkage ssize_t sys_pread64(unsigned
    >
    > return ret;
    > }
    > +EXPORT_SYMBOL_GPL(sys_pread64);
    >
    > asmlinkage ssize_t sys_pwrite64(unsigned int fd, const char __user *buf,
    > size_t count, loff_t pos)
    > @@ -337,6 +338,7 @@ asmlinkage ssize_t sys_pwrite64(unsigned
    >
    > return ret;
    > }
    > +EXPORT_SYMBOL_GPL(sys_pwrite64);
    >
    > /*
    > * Reduce an iovec's length in-place. Return the resulting number of segments
    >
    >
    > --
    > --
    > Truth, honesty and respect are rare commodities that all spring from
    > the same well: Love. If you love yourself and everyone and everything
    > around you, funnily and coincidentally enough, life gets a lot better.
    > --
    > lkcl.net <br />
    > <a href="mailto:lkcl@lkcl.net"> lkcl@lkcl.net </a> <br />
    > 

    -- 
--
Truth, honesty and respect are rare commodities that all spring from
the same well: Love.  If you love yourself and everyone and everything
around you, funnily and coincidentally enough, life gets a lot better.
--
<a href="http://lkcl.net">      lkcl.net      </a> <br />
<a href="mailto:lkcl@lkcl.net"> lkcl@lkcl.net </a> <br />
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