mirror_zfs/include/linux/file_compat.h
Brian Behlendorf 55abb0929e Split <sys/debug.h> header
To avoid symbol conflicts with dependent packages the debug
header must be split in to several parts.  The <sys/debug.h>
header now only contains the Solaris macro's such as ASSERT
and VERIFY.  The spl-debug.h header contain the spl specific
debugging infrastructure and should be included by any package
which needs to use the spl logging.  Finally the spl-trace.h
header contains internal data structures only used for the log
facility and should not be included by anythign by spl-debug.c.

This way dependent packages can include the standard Solaris
headers without picking up any SPL debug macros.  However, if
the dependant package want to integrate with the SPL debugging
subsystem they can then explicitly include spl-debug.h.

Along with this change I have dropped the CHECK_STACK macros
because the upstream Linux kernel now has much better stack
depth checking built in and we don't need this complexity.

Additionally SBUG has been replaced with PANIC and provided as
part of the Solaris macro set.  While the Solaris version is
really panic() that conflicts with the Linux kernel so we'll
just have to make due to PANIC.  It should rarely be called
directly, the prefered usage would be an ASSERT or VERIFY.

There's lots of change here but this cleanup was overdue.
2010-07-20 13:29:35 -07:00

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2.1 KiB
C

/*****************************************************************************\
* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
* Copyright (C) 2007 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
* This file is part of the SPL, Solaris Porting Layer.
* For details, see <http://github.com/behlendorf/spl/>.
*
* The SPL is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* The SPL is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
\*****************************************************************************/
#ifndef _SPL_FILE_COMPAT_H
#define _SPL_FILE_COMPAT_H
#include <linux/fs.h>
#ifdef HAVE_FDTABLE_HEADER
#include <linux/fdtable.h>
#endif
static inline struct file *
spl_filp_open(const char *name, int flags, int mode, int *err)
{
struct file *filp = NULL;
int rc;
filp = filp_open(name, flags, mode);
if (IS_ERR(filp)) {
rc = PTR_ERR(filp);
if (err)
*err = rc;
filp = NULL;
}
return filp;
}
#define spl_filp_close(f) filp_close(f, NULL)
#define spl_filp_poff(f) (&(f)->f_pos)
#define spl_filp_write(fp, b, s, p) (fp)->f_op->write((fp), (b), (s), p)
#ifdef HAVE_3ARGS_FILE_FSYNC
#define spl_filp_fsync(fp, sync) (fp)->f_op->fsync((fp), \
(fp)->f_dentry, sync)
#else
#define spl_filp_fsync(fp, sync) (fp)->f_op->fsync((fp), sync)
#endif
#endif /* SPL_FILE_COMPAT_H */