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066e825221
Increase the minimum supported kernel version from 2.6.32 to 3.10.
This removes support for the following Linux enterprise distributions.
Distribution | Kernel | End of Life
---------------- | ------ | -------------
Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017
SLES 11 | 3.0 | Mar 32, 2019
RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020
The following changes were made as part of removing support.
* Updated `configure` to enforce a minimum kernel version as
specified in the META file (Linux-Minimum: 3.10).
configure: error:
*** Cannot build against kernel version 2.6.32.
*** The minimum supported kernel version is 3.10.
* Removed all `configure` kABI checks and matching C code for
interfaces which solely predate the Linux 3.10 kernel.
* Updated all `configure` kABI checks to fail when an interface is
missing which was in the 3.10 kernel up to the latest 5.1 kernel.
Removed the HAVE_* preprocessor defines for these checks and
updated the code to unconditionally use the verified interface.
* Inverted the detection logic in several kABI checks to match
the new interface as it appears in 3.10 and newer and not the
legacy interface.
* Consolidated the following checks in to individual files. Due
the large number of changes in the checks it made sense to handle
this now. It would be desirable to group other related checks in
the same fashion, but this as left as future work.
- config/kernel-blkdev.m4 - Block device kABI checks
- config/kernel-blk-queue.m4 - Block queue kABI checks
- config/kernel-bio.m4 - Bio interface kABI checks
* Removed the kABI checks for sops->nr_cached_objects() and
sops->free_cached_objects(). These interfaces are currently unused.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9566
87 lines
2.8 KiB
C
87 lines
2.8 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://zfsonlinux.org/>.
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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_TIMER_H
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#define _SPL_TIMER_H
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/time.h>
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#include <linux/timer.h>
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#define lbolt ((clock_t)jiffies)
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#define lbolt64 ((int64_t)get_jiffies_64())
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#define ddi_get_lbolt() ((clock_t)jiffies)
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#define ddi_get_lbolt64() ((int64_t)get_jiffies_64())
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#define ddi_time_before(a, b) (typecheck(clock_t, a) && \
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typecheck(clock_t, b) && \
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((a) - (b) < 0))
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#define ddi_time_after(a, b) ddi_time_before(b, a)
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#define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
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#define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)
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#define ddi_time_before64(a, b) (typecheck(int64_t, a) && \
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typecheck(int64_t, b) && \
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((a) - (b) < 0))
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#define ddi_time_after64(a, b) ddi_time_before64(b, a)
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#define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
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#define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)
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#define delay(ticks) schedule_timeout_uninterruptible(ticks)
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#define SEC_TO_TICK(sec) ((sec) * HZ)
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#define MSEC_TO_TICK(ms) msecs_to_jiffies(ms)
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#define USEC_TO_TICK(us) usecs_to_jiffies(us)
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#define NSEC_TO_TICK(ns) usecs_to_jiffies(ns / NSEC_PER_USEC)
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#ifndef from_timer
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#define from_timer(var, timer, timer_field) \
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container_of(timer, typeof(*var), timer_field)
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#endif
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#ifdef HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST
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typedef struct timer_list *spl_timer_list_t;
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#else
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typedef unsigned long spl_timer_list_t;
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#endif
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#ifndef HAVE_KERNEL_TIMER_SETUP
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static inline void
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timer_setup(struct timer_list *timer, void (*func)(spl_timer_list_t), u32 fl)
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{
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#ifdef HAVE_KERNEL_TIMER_LIST_FLAGS
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(timer)->flags = fl;
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#endif
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init_timer(timer);
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setup_timer(timer, func, (spl_timer_list_t)(timer));
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}
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#endif /* HAVE_KERNEL_TIMER_SETUP */
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#endif /* _SPL_TIMER_H */
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