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c30df9c863
1) Ensure mutex_init() never fails in the case of ENOMEM by retrying forever. I don't think I've ever seen this happen but it was clear after code inspection that if it did we would immediately crash. 2) Enable full debugging in check.sh for sanity tests. Might as well get as much debug as we can in the case of a failure. 3) Reworked list of kmem caches tracked by SPL in to a hash with the key based on the address of the kmem_cache_t. This should speed up the constructor/destructor/shrinker lookup needed now for newer kernel which removed the destructor support. 4) Updated kmem_cache_create to handle the case where CONFIG_SLUB is defined. The slub would occasionally merge slab caches which resulted in non-unique keys for our hash lookup in 3). To fix this we detect if the slub is enabled and then set the needed flag to prevent this merging from ever occuring. 5) New kernels removed the proc_dir_entry pointer from items registered by sysctl. This means we can no long be sneaky and manually insert things in to the sysctl tree simply by walking the proc tree. So I'm forced to create a seperate tree for all the things I can't easily support via sysctl interface. I don't like it but it will do for now. git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@124 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/*
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* This file is part of the SPL: Solaris Porting Layer.
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*
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* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory
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* Written by:
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* Brian Behlendorf <behlendorf1@llnl.gov>,
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* Herb Wartens <wartens2@llnl.gov>,
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* Jim Garlick <garlick@llnl.gov>
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* UCRL-CODE-235197
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*
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* This 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
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This 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 this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _SPL_PROC_H
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#define _SPL_PROC_H
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#include <linux/proc_fs.h>
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#include <linux/kmod.h>
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#include <linux/uaccess.h>
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#include <linux/ctype.h>
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#include <linux/sysctl.h>
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#include <linux/seq_file.h>
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#include <sys/sysmacros.h>
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#include <sys/kmem.h>
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#include <sys/mutex.h>
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#include <sys/kstat.h>
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#include <sys/debug.h>
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#ifdef CONFIG_SYSCTL
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#ifdef HAVE_2ARGS_REGISTER_SYSCTL
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#define spl_register_sysctl_table(t, a) register_sysctl_table(t, a)
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#else
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#define spl_register_sysctl_table(t, a) register_sysctl_table(t)
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#endif /* HAVE_2ARGS_REGISTER_SYSCTL */
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#define spl_unregister_sysctl_table(t) unregister_sysctl_table(t)
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#endif /* CONFIG_SYSCTL */
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#ifdef DEBUG_KSTAT
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extern struct proc_dir_entry *proc_spl_kstat;
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struct proc_dir_entry *proc_dir_entry_find(struct proc_dir_entry *root,
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const char *str);
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int proc_dir_entries(struct proc_dir_entry *root);
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#endif
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int proc_init(void);
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void proc_fini(void);
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#endif /* SPL_PROC_H */
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