mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 04:02:20 +00:00
f88c3fb81c
Yes, yes, I know the slab people were planning on going slow and letting every subsystem fight this thing on their own. But let's just rip off the band-aid and get it over and done with. I don't want to see a number of unnecessary pull requests just to get rid of a flag that no longer has any meaning. This was mainly done with a couple of 'sed' scripts and then some manual cleanup of the end result. Link: https://lore.kernel.org/all/CAHk-=wji0u+OOtmAOD-5JV3SXcRJF___k_+8XNKmak0yd5vW1Q@mail.gmail.com/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
263 lines
6.0 KiB
C
263 lines
6.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
|
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/buffer_head.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/gfs2_ondisk.h>
|
|
#include <linux/rcupdate.h>
|
|
#include <linux/rculist_bl.h>
|
|
#include <linux/atomic.h>
|
|
#include <linux/mempool.h>
|
|
|
|
#include "gfs2.h"
|
|
#include "incore.h"
|
|
#include "super.h"
|
|
#include "sys.h"
|
|
#include "util.h"
|
|
#include "glock.h"
|
|
#include "quota.h"
|
|
#include "recovery.h"
|
|
#include "dir.h"
|
|
#include "glops.h"
|
|
|
|
struct workqueue_struct *gfs2_control_wq;
|
|
|
|
static void gfs2_init_inode_once(void *foo)
|
|
{
|
|
struct gfs2_inode *ip = foo;
|
|
|
|
inode_init_once(&ip->i_inode);
|
|
atomic_set(&ip->i_sizehint, 0);
|
|
init_rwsem(&ip->i_rw_mutex);
|
|
INIT_LIST_HEAD(&ip->i_ordered);
|
|
ip->i_qadata = NULL;
|
|
gfs2_holder_mark_uninitialized(&ip->i_rgd_gh);
|
|
memset(&ip->i_res, 0, sizeof(ip->i_res));
|
|
RB_CLEAR_NODE(&ip->i_res.rs_node);
|
|
ip->i_hash_cache = NULL;
|
|
gfs2_holder_mark_uninitialized(&ip->i_iopen_gh);
|
|
}
|
|
|
|
static void gfs2_init_glock_once(void *foo)
|
|
{
|
|
struct gfs2_glock *gl = foo;
|
|
|
|
spin_lock_init(&gl->gl_lockref.lock);
|
|
INIT_LIST_HEAD(&gl->gl_holders);
|
|
INIT_LIST_HEAD(&gl->gl_lru);
|
|
INIT_LIST_HEAD(&gl->gl_ail_list);
|
|
atomic_set(&gl->gl_ail_count, 0);
|
|
atomic_set(&gl->gl_revokes, 0);
|
|
}
|
|
|
|
static void gfs2_init_gl_aspace_once(void *foo)
|
|
{
|
|
struct gfs2_glock_aspace *gla = foo;
|
|
|
|
gfs2_init_glock_once(&gla->glock);
|
|
address_space_init_once(&gla->mapping);
|
|
}
|
|
|
|
/**
|
|
* init_gfs2_fs - Register GFS2 as a filesystem
|
|
*
|
|
* Returns: 0 on success, error code on failure
|
|
*/
|
|
|
|
static int __init init_gfs2_fs(void)
|
|
{
|
|
int error;
|
|
|
|
gfs2_str2qstr(&gfs2_qdot, ".");
|
|
gfs2_str2qstr(&gfs2_qdotdot, "..");
|
|
gfs2_quota_hash_init();
|
|
|
|
error = gfs2_sys_init();
|
|
if (error)
|
|
return error;
|
|
|
|
error = list_lru_init(&gfs2_qd_lru);
|
|
if (error)
|
|
goto fail_lru;
|
|
|
|
error = gfs2_glock_init();
|
|
if (error)
|
|
goto fail_glock;
|
|
|
|
error = -ENOMEM;
|
|
gfs2_glock_cachep = kmem_cache_create("gfs2_glock",
|
|
sizeof(struct gfs2_glock),
|
|
0, SLAB_RECLAIM_ACCOUNT,
|
|
gfs2_init_glock_once);
|
|
if (!gfs2_glock_cachep)
|
|
goto fail_cachep1;
|
|
|
|
gfs2_glock_aspace_cachep = kmem_cache_create("gfs2_glock(aspace)",
|
|
sizeof(struct gfs2_glock_aspace),
|
|
0, 0, gfs2_init_gl_aspace_once);
|
|
|
|
if (!gfs2_glock_aspace_cachep)
|
|
goto fail_cachep2;
|
|
|
|
gfs2_inode_cachep = kmem_cache_create("gfs2_inode",
|
|
sizeof(struct gfs2_inode),
|
|
0, SLAB_RECLAIM_ACCOUNT|
|
|
SLAB_ACCOUNT,
|
|
gfs2_init_inode_once);
|
|
if (!gfs2_inode_cachep)
|
|
goto fail_cachep3;
|
|
|
|
gfs2_bufdata_cachep = kmem_cache_create("gfs2_bufdata",
|
|
sizeof(struct gfs2_bufdata),
|
|
0, 0, NULL);
|
|
if (!gfs2_bufdata_cachep)
|
|
goto fail_cachep4;
|
|
|
|
gfs2_rgrpd_cachep = kmem_cache_create("gfs2_rgrpd",
|
|
sizeof(struct gfs2_rgrpd),
|
|
0, 0, NULL);
|
|
if (!gfs2_rgrpd_cachep)
|
|
goto fail_cachep5;
|
|
|
|
gfs2_quotad_cachep = kmem_cache_create("gfs2_quotad",
|
|
sizeof(struct gfs2_quota_data),
|
|
0, SLAB_RECLAIM_ACCOUNT, NULL);
|
|
if (!gfs2_quotad_cachep)
|
|
goto fail_cachep6;
|
|
|
|
gfs2_qadata_cachep = kmem_cache_create("gfs2_qadata",
|
|
sizeof(struct gfs2_qadata),
|
|
0, 0, NULL);
|
|
if (!gfs2_qadata_cachep)
|
|
goto fail_cachep7;
|
|
|
|
gfs2_trans_cachep = kmem_cache_create("gfs2_trans",
|
|
sizeof(struct gfs2_trans),
|
|
0, 0, NULL);
|
|
if (!gfs2_trans_cachep)
|
|
goto fail_cachep8;
|
|
|
|
error = gfs2_qd_shrinker_init();
|
|
if (error)
|
|
goto fail_shrinker;
|
|
|
|
error = -ENOMEM;
|
|
gfs2_recovery_wq = alloc_workqueue("gfs2_recovery",
|
|
WQ_MEM_RECLAIM | WQ_FREEZABLE, 0);
|
|
if (!gfs2_recovery_wq)
|
|
goto fail_wq1;
|
|
|
|
gfs2_control_wq = alloc_workqueue("gfs2_control",
|
|
WQ_UNBOUND | WQ_FREEZABLE, 0);
|
|
if (!gfs2_control_wq)
|
|
goto fail_wq2;
|
|
|
|
gfs2_freeze_wq = alloc_workqueue("gfs2_freeze", 0, 0);
|
|
|
|
if (!gfs2_freeze_wq)
|
|
goto fail_wq3;
|
|
|
|
gfs2_page_pool = mempool_create_page_pool(64, 0);
|
|
if (!gfs2_page_pool)
|
|
goto fail_mempool;
|
|
|
|
gfs2_register_debugfs();
|
|
error = register_filesystem(&gfs2_fs_type);
|
|
if (error)
|
|
goto fail_fs1;
|
|
|
|
error = register_filesystem(&gfs2meta_fs_type);
|
|
if (error)
|
|
goto fail_fs2;
|
|
|
|
|
|
pr_info("GFS2 installed\n");
|
|
|
|
return 0;
|
|
|
|
fail_fs2:
|
|
unregister_filesystem(&gfs2_fs_type);
|
|
fail_fs1:
|
|
mempool_destroy(gfs2_page_pool);
|
|
fail_mempool:
|
|
destroy_workqueue(gfs2_freeze_wq);
|
|
fail_wq3:
|
|
destroy_workqueue(gfs2_control_wq);
|
|
fail_wq2:
|
|
destroy_workqueue(gfs2_recovery_wq);
|
|
fail_wq1:
|
|
gfs2_qd_shrinker_exit();
|
|
fail_shrinker:
|
|
kmem_cache_destroy(gfs2_trans_cachep);
|
|
fail_cachep8:
|
|
kmem_cache_destroy(gfs2_qadata_cachep);
|
|
fail_cachep7:
|
|
kmem_cache_destroy(gfs2_quotad_cachep);
|
|
fail_cachep6:
|
|
kmem_cache_destroy(gfs2_rgrpd_cachep);
|
|
fail_cachep5:
|
|
kmem_cache_destroy(gfs2_bufdata_cachep);
|
|
fail_cachep4:
|
|
kmem_cache_destroy(gfs2_inode_cachep);
|
|
fail_cachep3:
|
|
kmem_cache_destroy(gfs2_glock_aspace_cachep);
|
|
fail_cachep2:
|
|
kmem_cache_destroy(gfs2_glock_cachep);
|
|
fail_cachep1:
|
|
gfs2_glock_exit();
|
|
fail_glock:
|
|
list_lru_destroy(&gfs2_qd_lru);
|
|
fail_lru:
|
|
gfs2_sys_uninit();
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* exit_gfs2_fs - Unregister the file system
|
|
*
|
|
*/
|
|
|
|
static void __exit exit_gfs2_fs(void)
|
|
{
|
|
gfs2_qd_shrinker_exit();
|
|
gfs2_glock_exit();
|
|
gfs2_unregister_debugfs();
|
|
unregister_filesystem(&gfs2_fs_type);
|
|
unregister_filesystem(&gfs2meta_fs_type);
|
|
destroy_workqueue(gfs2_recovery_wq);
|
|
destroy_workqueue(gfs2_control_wq);
|
|
destroy_workqueue(gfs2_freeze_wq);
|
|
list_lru_destroy(&gfs2_qd_lru);
|
|
|
|
rcu_barrier();
|
|
|
|
mempool_destroy(gfs2_page_pool);
|
|
kmem_cache_destroy(gfs2_trans_cachep);
|
|
kmem_cache_destroy(gfs2_qadata_cachep);
|
|
kmem_cache_destroy(gfs2_quotad_cachep);
|
|
kmem_cache_destroy(gfs2_rgrpd_cachep);
|
|
kmem_cache_destroy(gfs2_bufdata_cachep);
|
|
kmem_cache_destroy(gfs2_inode_cachep);
|
|
kmem_cache_destroy(gfs2_glock_aspace_cachep);
|
|
kmem_cache_destroy(gfs2_glock_cachep);
|
|
|
|
gfs2_sys_uninit();
|
|
}
|
|
|
|
MODULE_DESCRIPTION("Global File System");
|
|
MODULE_AUTHOR("Red Hat, Inc.");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(init_gfs2_fs);
|
|
module_exit(exit_gfs2_fs);
|
|
|