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00ba7ef900
The ZFS module returns ENOTSUP for several error conditions where an operation
is not (yet) supported. The SPL defined ENOTSUP in terms of ENOTSUPP, but that
is an internal Linux kernel error code that should not be seen by user
programs. As a result the zfs utilities print a confusing error message if an
unsupported operation is attempted:
internal error: Unknown error 524
Aborted
This change defines ENOTSUP in terms of EOPNOTSUPP which is consistent with
user space.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
224 lines
6.6 KiB
C
224 lines
6.6 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://github.com/behlendorf/spl/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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\*****************************************************************************/
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#ifndef _SPL_SYSMACROS_H
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#define _SPL_SYSMACROS_H
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#include <linux/module.h>
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#include <linux/cpumask.h>
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#include <sys/debug.h>
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#include <sys/varargs.h>
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#include <sys/zone.h>
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#include <sys/signal.h>
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#ifndef _KERNEL
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#define _KERNEL __KERNEL__
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#endif
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#define FALSE 0
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#define TRUE 1
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#define INT8_MAX (127)
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#define INT8_MIN (-128)
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#define UINT8_MAX (255)
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#define UINT8_MIN (0)
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#define INT16_MAX (32767)
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#define INT16_MIN (-32768)
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#define UINT16_MAX (65535)
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#define UINT16_MIN (0)
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#define INT32_MAX INT_MAX
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#define INT32_MIN INT_MIN
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#define UINT32_MAX UINT_MAX
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#define UINT32_MIN UINT_MIN
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#define INT64_MAX LLONG_MAX
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#define INT64_MIN LLONG_MIN
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#define UINT64_MAX ULLONG_MAX
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#define UINT64_MIN ULLONG_MIN
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#define NBBY 8
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#define ENOTSUP EOPNOTSUPP
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#define MAXMSGLEN 256
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#define MAXNAMELEN 256
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#define MAXPATHLEN PATH_MAX
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#ifdef _LP64
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#define MAXOFFSET_T 0x7fffffffffffffffl
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#else
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#define MAXOFFSET_T 0x7fffffffl
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#endif
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#define MAXBSIZE 8192
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#define DEV_BSIZE 512
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define proc_pageout NULL
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#define curproc get_current()
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#define max_ncpus num_possible_cpus()
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#define CPU_SEQID smp_processor_id()
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#define _NOTE(x)
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#define is_system_labeled() 0
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#ifndef RLIM64_INFINITY
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#define RLIM64_INFINITY (~0ULL)
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#endif
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/* 0..MAX_PRIO-1: Process priority
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* 0..MAX_RT_PRIO-1: RT priority tasks
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* MAX_RT_PRIO..MAX_PRIO-1: SCHED_NORMAL tasks
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*
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* Treat shim tasks as SCHED_NORMAL tasks
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*/
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#define minclsyspri (MAX_RT_PRIO)
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#define maxclsyspri (MAX_PRIO-1)
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#define NICE_TO_PRIO(nice) (MAX_RT_PRIO + (nice) + 20)
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#define PRIO_TO_NICE(prio) ((prio) - MAX_RT_PRIO - 20)
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/* Missing macros
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*/
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#define PAGESIZE PAGE_SIZE
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/* from Solaris sys/byteorder.h */
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#define BSWAP_8(x) ((x) & 0xff)
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#define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8))
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#define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16))
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#define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32))
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/* Map some simple functions.
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*/
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#define bzero(ptr,size) memset(ptr,0,size)
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#define bcopy(src,dest,size) memmove(dest,src,size)
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#define bcmp(src,dest,size) memcmp((src), (dest), (size_t)(size))
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/* Dtrace probes do not exist in the linux kernel */
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#ifdef DTRACE_PROBE
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#undef DTRACE_PROBE
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#endif /* DTRACE_PROBE */
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#define DTRACE_PROBE(a) ((void)0)
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#ifdef DTRACE_PROBE1
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#undef DTRACE_PROBE1
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#endif /* DTRACE_PROBE1 */
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#define DTRACE_PROBE1(a, b, c) ((void)0)
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#ifdef DTRACE_PROBE2
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#undef DTRACE_PROBE2
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#endif /* DTRACE_PROBE2 */
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#define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
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#ifdef DTRACE_PROBE3
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#undef DTRACE_PROBE3
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#endif /* DTRACE_PROBE3 */
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#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
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#ifdef DTRACE_PROBE4
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#undef DTRACE_PROBE4
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#endif /* DTRACE_PROBE4 */
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#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
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/* Missing globals */
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extern char spl_version[16];
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extern long spl_hostid;
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extern char hw_serial[11];
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/* Missing misc functions */
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extern int highbit(unsigned long i);
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extern uint32_t zone_get_hostid(void *zone);
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extern void spl_setup(void);
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extern void spl_cleanup(void);
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#define makedevice(maj,min) makedev(maj,min)
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/* common macros */
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#ifndef MIN
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#endif
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#ifndef MAX
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#define MAX(a, b) ((a) < (b) ? (b) : (a))
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#endif
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#ifndef ABS
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#define ABS(a) ((a) < 0 ? -(a) : (a))
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#endif
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#ifndef DIV_ROUND_UP
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#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
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#endif
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#ifndef roundup
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#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
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#endif
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/*
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* Compatibility macros/typedefs needed for Solaris -> Linux port
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*/
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#define P2ALIGN(x, align) ((x) & -(align))
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#define P2CROSS(x, y, align) (((x) ^ (y)) > (align) - 1)
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#define P2ROUNDUP(x, align) (-(-(x) & -(align)))
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#define P2PHASE(x, align) ((x) & ((align) - 1))
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#define P2NPHASE(x, align) (-(x) & ((align) - 1))
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#define ISP2(x) (((x) & ((x) - 1)) == 0)
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#define IS_P2ALIGNED(v, a) ((((uintptr_t)(v)) & ((uintptr_t)(a) - 1))==0)
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#define P2BOUNDARY(off, len, align) \
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(((off) ^ ((off) + (len) - 1)) > (align) - 1)
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/*
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* Typed version of the P2* macros. These macros should be used to ensure
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* that the result is correctly calculated based on the data type of (x),
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* which is passed in as the last argument, regardless of the data
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* type of the alignment. For example, if (x) is of type uint64_t,
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* and we want to round it up to a page boundary using "PAGESIZE" as
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* the alignment, we can do either
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*
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* P2ROUNDUP(x, (uint64_t)PAGESIZE)
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* or
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* P2ROUNDUP_TYPED(x, PAGESIZE, uint64_t)
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*/
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#define P2ALIGN_TYPED(x, align, type) \
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((type)(x) & -(type)(align))
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#define P2PHASE_TYPED(x, align, type) \
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((type)(x) & ((type)(align) - 1))
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#define P2NPHASE_TYPED(x, align, type) \
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(-(type)(x) & ((type)(align) - 1))
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#define P2ROUNDUP_TYPED(x, align, type) \
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(-(-(type)(x) & -(type)(align)))
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#define P2END_TYPED(x, align, type) \
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(-(~(type)(x) & -(type)(align)))
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#define P2PHASEUP_TYPED(x, align, phase, type) \
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((type)(phase) - (((type)(phase) - (type)(x)) & -(type)(align)))
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#define P2CROSS_TYPED(x, y, align, type) \
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(((type)(x) ^ (type)(y)) > (type)(align) - 1)
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#define P2SAMEHIGHBIT_TYPED(x, y, type) \
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(((type)(x) ^ (type)(y)) < ((type)(x) & (type)(y)))
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#if defined(_KERNEL) && !defined(_KMEMUSER) && !defined(offsetof)
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/* avoid any possibility of clashing with <stddef.h> version */
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#define offsetof(s, m) ((size_t)(&(((s *)0)->m)))
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#endif
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#endif /* _SPL_SYSMACROS_H */
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