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Merge branch 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2

Browse source
This commit is contained in:
Linus Torvalds 2006-03-01 15:49:50 -08:00
commit b1e2d907cb
18 changed files with 249 additions and 142 deletions
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1
fs/ocfs2/cluster/masklog.c
View file

@ -74,6 +74,7 @@ struct mlog_attribute {
#define define_mask(_name) { \
.attr = { \
.name = #_name, \
.owner = THIS_MODULE, \
.mode = S_IRUGO | S_IWUSR, \
}, \
.mask = ML_##_name, \

2
fs/ocfs2/cluster/masklog.h
View file

@ -256,7 +256,7 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
} \
} while (0)
#if (BITS_PER_LONG == 32) || defined(CONFIG_X86_64)
#if (BITS_PER_LONG == 32) || defined(CONFIG_X86_64) || (defined(CONFIG_UML_X86) && defined(CONFIG_64BIT))
#define MLFi64 "lld"
#define MLFu64 "llu"
#define MLFx64 "llx"

4
fs/ocfs2/cluster/nodemanager.c
View file

@ -756,7 +756,7 @@ static int __init init_o2nm(void)
if (!ocfs2_table_header) {
printk(KERN_ERR "nodemanager: unable to register sysctl\n");
ret = -ENOMEM; /* or something. */
goto out;
goto out_o2net;
}
ret = o2net_register_hb_callbacks();
@ -780,6 +780,8 @@ out_callbacks:
o2net_unregister_hb_callbacks();
out_sysctl:
unregister_sysctl_table(ocfs2_table_header);
out_o2net:
o2net_exit();
out:
return ret;
}

14
fs/ocfs2/cluster/tcp.c
View file

@ -1318,7 +1318,7 @@ static void o2net_start_connect(void *arg)
{
struct o2net_node *nn = arg;
struct o2net_sock_container *sc = NULL;
struct o2nm_node *node = NULL;
struct o2nm_node *node = NULL, *mynode = NULL;
struct socket *sock = NULL;
struct sockaddr_in myaddr = {0, }, remoteaddr = {0, };
int ret = 0;
@ -1334,6 +1334,12 @@ static void o2net_start_connect(void *arg)
goto out;
}
mynode = o2nm_get_node_by_num(o2nm_this_node());
if (mynode == NULL) {
ret = 0;
goto out;
}
spin_lock(&nn->nn_lock);
/* see if we already have one pending or have given up */
if (nn->nn_sc || nn->nn_persistent_error)
@ -1361,12 +1367,14 @@ static void o2net_start_connect(void *arg)
sock->sk->sk_allocation = GFP_ATOMIC;
myaddr.sin_family = AF_INET;
myaddr.sin_addr.s_addr = (__force u32)mynode->nd_ipv4_address;
myaddr.sin_port = (__force u16)htons(0); /* any port */
ret = sock->ops->bind(sock, (struct sockaddr *)&myaddr,
sizeof(myaddr));
if (ret) {
mlog(0, "bind failed: %d\n", ret);
mlog(ML_ERROR, "bind failed with %d at address %u.%u.%u.%u\n",
ret, NIPQUAD(mynode->nd_ipv4_address));
goto out;
}
@ -1407,6 +1415,8 @@ out:
sc_put(sc);
if (node)
o2nm_node_put(node);
if (mynode)
o2nm_node_put(mynode);
return;
}

5
fs/ocfs2/cluster/tcp.h
View file

@ -85,13 +85,10 @@ enum {
O2NET_DRIVER_READY,
};
int o2net_init_tcp_sock(struct inode *inode);
int o2net_send_message(u32 msg_type, u32 key, void *data, u32 len,
u8 target_node, int *status);
int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *vec,
size_t veclen, u8 target_node, int *status);
int o2net_broadcast_message(u32 msg_type, u32 key, void *data, u32 len,
struct inode *group);
int o2net_register_handler(u32 msg_type, u32 key, u32 max_len,
o2net_msg_handler_func *func, void *data,
@ -107,7 +104,5 @@ void o2net_disconnect_node(struct o2nm_node *node);
int o2net_init(void);
void o2net_exit(void);
int o2net_proc_init(struct proc_dir_entry *parent);
void o2net_proc_exit(struct proc_dir_entry *parent);
#endif /* O2CLUSTER_TCP_H */

8
fs/ocfs2/dlm/dlmcommon.h
View file

@ -37,9 +37,7 @@
#define DLM_THREAD_SHUFFLE_INTERVAL 5 // flush everything every 5 passes
#define DLM_THREAD_MS 200 // flush at least every 200 ms
#define DLM_HASH_BITS 7
#define DLM_HASH_SIZE (1 << DLM_HASH_BITS)
#define DLM_HASH_MASK (DLM_HASH_SIZE - 1)
#define DLM_HASH_BUCKETS (PAGE_SIZE / sizeof(struct hlist_head))
enum dlm_ast_type {
DLM_AST = 0,
@ -87,7 +85,7 @@ enum dlm_ctxt_state {
struct dlm_ctxt
{
struct list_head list;
struct list_head *resources;
struct hlist_head *lockres_hash;
struct list_head dirty_list;
struct list_head purge_list;
struct list_head pending_asts;
@ -217,7 +215,7 @@ struct dlm_lock_resource
{
/* WARNING: Please see the comment in dlm_init_lockres before
* adding fields here. */
struct list_head list;
struct hlist_node hash_node;
struct kref refs;
/* please keep these next 3 in this order

12
fs/ocfs2/dlm/dlmdebug.c
View file

@ -117,8 +117,8 @@ EXPORT_SYMBOL_GPL(dlm_print_one_lock);
void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
{
struct dlm_lock_resource *res;
struct list_head *iter;
struct list_head *bucket;
struct hlist_node *iter;
struct hlist_head *bucket;
int i;
mlog(ML_NOTICE, "struct dlm_ctxt: %s, node=%u, key=%u\n",
@ -129,12 +129,10 @@ void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
}
spin_lock(&dlm->spinlock);
for (i=0; i<DLM_HASH_SIZE; i++) {
bucket = &(dlm->resources[i]);
list_for_each(iter, bucket) {
res = list_entry(iter, struct dlm_lock_resource, list);
for (i=0; i<DLM_HASH_BUCKETS; i++) {
bucket = &(dlm->lockres_hash[i]);
hlist_for_each_entry(res, iter, bucket, hash_node)
dlm_print_one_lock_resource(res);
}
}
spin_unlock(&dlm->spinlock);
}

39
fs/ocfs2/dlm/dlmdomain.c
View file

@ -77,26 +77,26 @@ static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm);
void __dlm_unhash_lockres(struct dlm_lock_resource *lockres)
{
list_del_init(&lockres->list);
hlist_del_init(&lockres->hash_node);
dlm_lockres_put(lockres);
}
void __dlm_insert_lockres(struct dlm_ctxt *dlm,
struct dlm_lock_resource *res)
{
struct list_head *bucket;
struct hlist_head *bucket;
struct qstr *q;
assert_spin_locked(&dlm->spinlock);
q = &res->lockname;
q->hash = full_name_hash(q->name, q->len);
bucket = &(dlm->resources[q->hash & DLM_HASH_MASK]);
bucket = &(dlm->lockres_hash[q->hash % DLM_HASH_BUCKETS]);
/* get a reference for our hashtable */
dlm_lockres_get(res);
list_add_tail(&res->list, bucket);
hlist_add_head(&res->hash_node, bucket);
}
struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
@ -104,9 +104,9 @@ struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
unsigned int len)
{
unsigned int hash;
struct list_head *iter;
struct hlist_node *iter;
struct dlm_lock_resource *tmpres=NULL;
struct list_head *bucket;
struct hlist_head *bucket;
mlog_entry("%.*s\n", len, name);
@ -114,11 +114,11 @@ struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
hash = full_name_hash(name, len);
bucket = &(dlm->resources[hash & DLM_HASH_MASK]);
bucket = &(dlm->lockres_hash[hash % DLM_HASH_BUCKETS]);
/* check for pre-existing lock */
list_for_each(iter, bucket) {
tmpres = list_entry(iter, struct dlm_lock_resource, list);
hlist_for_each(iter, bucket) {
tmpres = hlist_entry(iter, struct dlm_lock_resource, hash_node);
if (tmpres->lockname.len == len &&
memcmp(tmpres->lockname.name, name, len) == 0) {
dlm_lockres_get(tmpres);
@ -193,8 +193,8 @@ static int dlm_wait_on_domain_helper(const char *domain)
static void dlm_free_ctxt_mem(struct dlm_ctxt *dlm)
{
if (dlm->resources)
free_page((unsigned long) dlm->resources);
if (dlm->lockres_hash)
free_page((unsigned long) dlm->lockres_hash);
if (dlm->name)
kfree(dlm->name);
@ -303,10 +303,10 @@ static void dlm_migrate_all_locks(struct dlm_ctxt *dlm)
mlog(0, "Migrating locks from domain %s\n", dlm->name);
restart:
spin_lock(&dlm->spinlock);
for (i=0; i<DLM_HASH_SIZE; i++) {
while (!list_empty(&dlm->resources[i])) {
res = list_entry(dlm->resources[i].next,
struct dlm_lock_resource, list);
for (i = 0; i < DLM_HASH_BUCKETS; i++) {
while (!hlist_empty(&dlm->lockres_hash[i])) {
res = hlist_entry(dlm->lockres_hash[i].first,
struct dlm_lock_resource, hash_node);
/* need reference when manually grabbing lockres */
dlm_lockres_get(res);
/* this should unhash the lockres
@ -1191,18 +1191,17 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain,
goto leave;
}
dlm->resources = (struct list_head *) __get_free_page(GFP_KERNEL);
if (!dlm->resources) {
dlm->lockres_hash = (struct hlist_head *) __get_free_page(GFP_KERNEL);
if (!dlm->lockres_hash) {
mlog_errno(-ENOMEM);
kfree(dlm->name);
kfree(dlm);
dlm = NULL;
goto leave;
}
memset(dlm->resources, 0, PAGE_SIZE);
for (i=0; i<DLM_HASH_SIZE; i++)
INIT_LIST_HEAD(&dlm->resources[i]);
for (i=0; i<DLM_HASH_BUCKETS; i++)
INIT_HLIST_HEAD(&dlm->lockres_hash[i]);
strcpy(dlm->name, domain);
dlm->key = key;

4
fs/ocfs2/dlm/dlmmaster.c
View file

@ -564,7 +564,7 @@ static void dlm_lockres_release(struct kref *kref)
/* By the time we're ready to blow this guy away, we shouldn't
* be on any lists. */
BUG_ON(!list_empty(&res->list));
BUG_ON(!hlist_unhashed(&res->hash_node));
BUG_ON(!list_empty(&res->granted));
BUG_ON(!list_empty(&res->converting));
BUG_ON(!list_empty(&res->blocked));
@ -605,7 +605,7 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
init_waitqueue_head(&res->wq);
spin_lock_init(&res->spinlock);
INIT_LIST_HEAD(&res->list);
INIT_HLIST_NODE(&res->hash_node);
INIT_LIST_HEAD(&res->granted);
INIT_LIST_HEAD(&res->converting);
INIT_LIST_HEAD(&res->blocked);

23
fs/ocfs2/dlm/dlmrecovery.c
View file

@ -1693,7 +1693,10 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm,
u8 dead_node, u8 new_master)
{
int i;
struct list_head *iter, *iter2, *bucket;
struct list_head *iter, *iter2;
struct hlist_node *hash_iter;
struct hlist_head *bucket;
struct dlm_lock_resource *res;
mlog_entry_void();
@ -1717,10 +1720,9 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm,
* for now we need to run the whole hash, clear
* the RECOVERING state and set the owner
* if necessary */
for (i=0; i<DLM_HASH_SIZE; i++) {
bucket = &(dlm->resources[i]);
list_for_each(iter, bucket) {
res = list_entry (iter, struct dlm_lock_resource, list);
for (i = 0; i < DLM_HASH_BUCKETS; i++) {
bucket = &(dlm->lockres_hash[i]);
hlist_for_each_entry(res, hash_iter, bucket, hash_node) {
if (res->state & DLM_LOCK_RES_RECOVERING) {
if (res->owner == dead_node) {
mlog(0, "(this=%u) res %.*s owner=%u "
@ -1852,10 +1854,10 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm,
static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
{
struct list_head *iter;
struct hlist_node *iter;
struct dlm_lock_resource *res;
int i;
struct list_head *bucket;
struct hlist_head *bucket;
struct dlm_lock *lock;
@ -1876,10 +1878,9 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
* can be kicked again to see if any ASTs or BASTs
* need to be fired as a result.
*/
for (i=0; i<DLM_HASH_SIZE; i++) {
bucket = &(dlm->resources[i]);
list_for_each(iter, bucket) {
res = list_entry (iter, struct dlm_lock_resource, list);
for (i = 0; i < DLM_HASH_BUCKETS; i++) {
bucket = &(dlm->lockres_hash[i]);
hlist_for_each_entry(res, iter, bucket, hash_node) {
/* always prune any $RECOVERY entries for dead nodes,
* otherwise hangs can occur during later recovery */
if (dlm_is_recovery_lock(res->lockname.name,

38
fs/ocfs2/extent_map.c
View file

@ -181,6 +181,12 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
ret = -EBADR;
if (rec_end > OCFS2_I(inode)->ip_clusters) {
mlog_errno(ret);
ocfs2_error(inode->i_sb,
"Extent %d at e_blkno %"MLFu64" of inode %"MLFu64" goes past ip_clusters of %u\n",
i,
le64_to_cpu(rec->e_blkno),
OCFS2_I(inode)->ip_blkno,
OCFS2_I(inode)->ip_clusters);
goto out_free;
}
@ -226,6 +232,12 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
ret = -EBADR;
if (blkno) {
mlog_errno(ret);
ocfs2_error(inode->i_sb,
"Multiple extents for (cpos = %u, clusters = %u) on inode %"MLFu64"; e_blkno %"MLFu64" and rec %d at e_blkno %"MLFu64"\n",
cpos, clusters,
OCFS2_I(inode)->ip_blkno,
blkno, i,
le64_to_cpu(rec->e_blkno));
goto out_free;
}
@ -238,6 +250,10 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
*/
ret = -EBADR;
if (!blkno) {
ocfs2_error(inode->i_sb,
"No record found for (cpos = %u, clusters = %u) on inode %"MLFu64"\n",
cpos, clusters,
OCFS2_I(inode)->ip_blkno);
mlog_errno(ret);
goto out_free;
}
@ -266,6 +282,20 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
for (i = 0; i < le16_to_cpu(el->l_next_free_rec); i++) {
rec = &el->l_recs[i];
if ((le32_to_cpu(rec->e_cpos) + le32_to_cpu(rec->e_clusters)) >
OCFS2_I(inode)->ip_clusters) {
ret = -EBADR;
mlog_errno(ret);
ocfs2_error(inode->i_sb,
"Extent %d at e_blkno %"MLFu64" of inode %"MLFu64" goes past ip_clusters of %u\n",
i,
le64_to_cpu(rec->e_blkno),
OCFS2_I(inode)->ip_blkno,
OCFS2_I(inode)->ip_clusters);
return ret;
}
ret = ocfs2_extent_map_insert(inode, rec,
le16_to_cpu(el->l_tree_depth));
if (ret) {
@ -526,6 +556,10 @@ static int ocfs2_extent_map_insert(struct inode *inode,
OCFS2_I(inode)->ip_map.em_clusters) {
ret = -EBADR;
mlog_errno(ret);
ocfs2_error(inode->i_sb,
"Zero e_clusters on non-tail extent record at e_blkno %"MLFu64" on inode %"MLFu64"\n",
le64_to_cpu(rec->e_blkno),
OCFS2_I(inode)->ip_blkno);
return ret;
}
@ -588,12 +622,12 @@ static int ocfs2_extent_map_insert(struct inode *inode,
* Existing record in the extent map:
*
* cpos = 10, len = 10
* |---------|
* |---------|
*
* New Record:
*
* cpos = 10, len = 20
* |------------------|
* |------------------|
*
* The passed record is the new on-disk record. The new_clusters value
* is how many clusters were added to the file. If the append is a

51
fs/ocfs2/file.c
View file

@ -933,9 +933,6 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
struct file *filp = iocb->ki_filp;
struct inode *inode = filp->f_dentry->d_inode;
loff_t newsize, saved_pos;
#ifdef OCFS2_ORACORE_WORKAROUNDS
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
#endif
mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", filp, buf,
(unsigned int)count,
@ -951,14 +948,6 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
return -EIO;
}
#ifdef OCFS2_ORACORE_WORKAROUNDS
/* ugh, work around some applications which open everything O_DIRECT +
* O_APPEND and really don't mean to use O_DIRECT. */
if (osb->s_mount_opt & OCFS2_MOUNT_COMPAT_OCFS &&
(filp->f_flags & O_APPEND) && (filp->f_flags & O_DIRECT))
filp->f_flags &= ~O_DIRECT;
#endif
mutex_lock(&inode->i_mutex);
/* to match setattr's i_mutex -> i_alloc_sem -> rw_lock ordering */
if (filp->f_flags & O_DIRECT) {
@ -1079,27 +1068,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
/* communicate with ocfs2_dio_end_io */
ocfs2_iocb_set_rw_locked(iocb);
#ifdef OCFS2_ORACORE_WORKAROUNDS
if (osb->s_mount_opt & OCFS2_MOUNT_COMPAT_OCFS &&
filp->f_flags & O_DIRECT) {
unsigned int saved_flags = filp->f_flags;
int sector_size = 1 << osb->s_sectsize_bits;
if ((saved_pos & (sector_size - 1)) ||
(count & (sector_size - 1)) ||
((unsigned long)buf & (sector_size - 1))) {
filp->f_flags |= O_SYNC;
filp->f_flags &= ~O_DIRECT;
}
ret = generic_file_aio_write_nolock(iocb, &local_iov, 1,
&iocb->ki_pos);
filp->f_flags = saved_flags;
} else
#endif
ret = generic_file_aio_write_nolock(iocb, &local_iov, 1,
&iocb->ki_pos);
ret = generic_file_aio_write_nolock(iocb, &local_iov, 1, &iocb->ki_pos);
/* buffered aio wouldn't have proper lock coverage today */
BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT));
@ -1140,9 +1109,6 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
int ret = 0, rw_level = -1, have_alloc_sem = 0;
struct file *filp = iocb->ki_filp;
struct inode *inode = filp->f_dentry->d_inode;
#ifdef OCFS2_ORACORE_WORKAROUNDS
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
#endif
mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", filp, buf,
(unsigned int)count,
@ -1155,21 +1121,6 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
goto bail;
}
#ifdef OCFS2_ORACORE_WORKAROUNDS
if (osb->s_mount_opt & OCFS2_MOUNT_COMPAT_OCFS) {
if (filp->f_flags & O_DIRECT) {
int sector_size = 1 << osb->s_sectsize_bits;
if ((pos & (sector_size - 1)) ||
(count & (sector_size - 1)) ||
((unsigned long)buf & (sector_size - 1)) ||
(i_size_read(inode) & (sector_size -1))) {
filp->f_flags &= ~O_DIRECT;
}
}
}
#endif
/*
* buffered reads protect themselves in ->readpage(). O_DIRECT reads
* need locks to protect pending reads from racing with truncate.

1
fs/ocfs2/heartbeat.c
View file

@ -67,6 +67,7 @@ void ocfs2_init_node_maps(struct ocfs2_super *osb)
ocfs2_node_map_init(&osb->mounted_map);
ocfs2_node_map_init(&osb->recovery_map);
ocfs2_node_map_init(&osb->umount_map);
ocfs2_node_map_init(&osb->osb_recovering_orphan_dirs);
}
static void ocfs2_do_node_down(int node_num,

46
fs/ocfs2/inode.c
View file

@ -41,6 +41,7 @@
#include "dlmglue.h"
#include "extent_map.h"
#include "file.h"
#include "heartbeat.h"
#include "inode.h"
#include "journal.h"
#include "namei.h"
@ -544,6 +545,42 @@ bail:
return status;
}
/*
* Serialize with orphan dir recovery. If the process doing
* recovery on this orphan dir does an iget() with the dir
* i_mutex held, we'll deadlock here. Instead we detect this
* and exit early - recovery will wipe this inode for us.
*/
static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb,
int slot)
{
int ret = 0;
spin_lock(&osb->osb_lock);
if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) {
mlog(0, "Recovery is happening on orphan dir %d, will skip "
"this inode\n", slot);
ret = -EDEADLK;
goto out;
}
/* This signals to the orphan recovery process that it should
* wait for us to handle the wipe. */
osb->osb_orphan_wipes[slot]++;
out:
spin_unlock(&osb->osb_lock);
return ret;
}
static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb,
int slot)
{
spin_lock(&osb->osb_lock);
osb->osb_orphan_wipes[slot]--;
spin_unlock(&osb->osb_lock);
wake_up(&osb->osb_wipe_event);
}
static int ocfs2_wipe_inode(struct inode *inode,
struct buffer_head *di_bh)
{
@ -555,6 +592,11 @@ static int ocfs2_wipe_inode(struct inode *inode,
/* We've already voted on this so it should be readonly - no
* spinlock needed. */
orphaned_slot = OCFS2_I(inode)->ip_orphaned_slot;
status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
if (status)
return status;
orphan_dir_inode = ocfs2_get_system_file_inode(osb,
ORPHAN_DIR_SYSTEM_INODE,
orphaned_slot);
@ -597,6 +639,7 @@ bail_unlock_dir:
brelse(orphan_dir_bh);
bail:
iput(orphan_dir_inode);
ocfs2_signal_wipe_completion(osb, orphaned_slot);
return status;
}
@ -822,7 +865,8 @@ void ocfs2_delete_inode(struct inode *inode)
status = ocfs2_wipe_inode(inode, di_bh);
if (status < 0) {
mlog_errno(status);
if (status != -EDEADLK)
mlog_errno(status);
goto bail_unlock_inode;
}

124
fs/ocfs2/journal.c
View file

@ -1408,21 +1408,17 @@ bail:
return status;
}
static int ocfs2_recover_orphans(struct ocfs2_super *osb,
int slot)
static int ocfs2_queue_orphans(struct ocfs2_super *osb,
int slot,
struct inode **head)
{
int status = 0;
int have_disk_lock = 0;
struct inode *inode = NULL;
struct inode *iter;
int status;
struct inode *orphan_dir_inode = NULL;
struct inode *iter;
unsigned long offset, blk, local;
struct buffer_head *bh = NULL;
struct ocfs2_dir_entry *de;
struct super_block *sb = osb->sb;
struct ocfs2_inode_info *oi;
mlog(0, "Recover inodes from orphan dir in slot %d\n", slot);
orphan_dir_inode = ocfs2_get_system_file_inode(osb,
ORPHAN_DIR_SYSTEM_INODE,
@ -1430,17 +1426,15 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
if (!orphan_dir_inode) {
status = -ENOENT;
mlog_errno(status);
goto out;
}
return status;
}
mutex_lock(&orphan_dir_inode->i_mutex);
status = ocfs2_meta_lock(orphan_dir_inode, NULL, NULL, 0);
if (status < 0) {
mutex_unlock(&orphan_dir_inode->i_mutex);
mlog_errno(status);
goto out;
}
have_disk_lock = 1;
offset = 0;
iter = NULL;
@ -1451,11 +1445,10 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
if (!bh)
status = -EINVAL;
if (status < 0) {
mutex_unlock(&orphan_dir_inode->i_mutex);
if (bh)
brelse(bh);
mlog_errno(status);
goto out;
goto out_unlock;
}
local = 0;
@ -1465,11 +1458,10 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
if (!ocfs2_check_dir_entry(orphan_dir_inode,
de, bh, local)) {
mutex_unlock(&orphan_dir_inode->i_mutex);
status = -EINVAL;
mlog_errno(status);
brelse(bh);
goto out;
goto out_unlock;
}
local += le16_to_cpu(de->rec_len);
@ -1504,18 +1496,95 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
mlog(0, "queue orphan %"MLFu64"\n",
OCFS2_I(iter)->ip_blkno);
OCFS2_I(iter)->ip_next_orphan = inode;
inode = iter;
/* No locking is required for the next_orphan
* queue as there is only ever a single
* process doing orphan recovery. */
OCFS2_I(iter)->ip_next_orphan = *head;
*head = iter;
}
brelse(bh);
}
mutex_unlock(&orphan_dir_inode->i_mutex);
out_unlock:
ocfs2_meta_unlock(orphan_dir_inode, 0);
have_disk_lock = 0;
out:
mutex_unlock(&orphan_dir_inode->i_mutex);
iput(orphan_dir_inode);
orphan_dir_inode = NULL;
return status;
}
static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb,
int slot)
{
int ret;
spin_lock(&osb->osb_lock);
ret = !osb->osb_orphan_wipes[slot];
spin_unlock(&osb->osb_lock);
return ret;
}
static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb,
int slot)
{
spin_lock(&osb->osb_lock);
/* Mark ourselves such that new processes in delete_inode()
* know to quit early. */
ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot);
while (osb->osb_orphan_wipes[slot]) {
/* If any processes are already in the middle of an
* orphan wipe on this dir, then we need to wait for
* them. */
spin_unlock(&osb->osb_lock);
wait_event_interruptible(osb->osb_wipe_event,
ocfs2_orphan_recovery_can_continue(osb, slot));
spin_lock(&osb->osb_lock);
}
spin_unlock(&osb->osb_lock);
}
static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb,
int slot)
{
ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot);
}
/*
* Orphan recovery. Each mounted node has it's own orphan dir which we
* must run during recovery. Our strategy here is to build a list of
* the inodes in the orphan dir and iget/iput them. The VFS does
* (most) of the rest of the work.
*
* Orphan recovery can happen at any time, not just mount so we have a
* couple of extra considerations.
*
* - We grab as many inodes as we can under the orphan dir lock -
* doing iget() outside the orphan dir risks getting a reference on
* an invalid inode.
* - We must be sure not to deadlock with other processes on the
* system wanting to run delete_inode(). This can happen when they go
* to lock the orphan dir and the orphan recovery process attempts to
* iget() inside the orphan dir lock. This can be avoided by
* advertising our state to ocfs2_delete_inode().
*/
static int ocfs2_recover_orphans(struct ocfs2_super *osb,
int slot)
{
int ret = 0;
struct inode *inode = NULL;
struct inode *iter;
struct ocfs2_inode_info *oi;
mlog(0, "Recover inodes from orphan dir in slot %d\n", slot);
ocfs2_mark_recovering_orphan_dir(osb, slot);
ret = ocfs2_queue_orphans(osb, slot, &inode);
ocfs2_clear_recovering_orphan_dir(osb, slot);
/* Error here should be noted, but we want to continue with as
* many queued inodes as we've got. */
if (ret)
mlog_errno(ret);
while (inode) {
oi = OCFS2_I(inode);
@ -1541,14 +1610,7 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
inode = iter;
}
out:
if (have_disk_lock)
ocfs2_meta_unlock(orphan_dir_inode, 0);
if (orphan_dir_inode)
iput(orphan_dir_inode);
return status;
return ret;
}
static int ocfs2_wait_on_mount(struct ocfs2_super *osb)

7
fs/ocfs2/ocfs2.h
View file

@ -174,9 +174,6 @@ enum ocfs2_mount_options
OCFS2_MOUNT_NOINTR = 1 << 2, /* Don't catch signals */
OCFS2_MOUNT_ERRORS_PANIC = 1 << 3, /* Panic on errors */
OCFS2_MOUNT_DATA_WRITEBACK = 1 << 4, /* No data ordering */
#ifdef OCFS2_ORACORE_WORKAROUNDS
OCFS2_MOUNT_COMPAT_OCFS = 1 << 30, /* ocfs1 compatibility mode */
#endif
};
#define OCFS2_OSB_SOFT_RO 0x0001
@ -290,6 +287,10 @@ struct ocfs2_super
struct inode *osb_tl_inode;
struct buffer_head *osb_tl_bh;
struct work_struct osb_truncate_log_wq;
struct ocfs2_node_map osb_recovering_orphan_dirs;
unsigned int *osb_orphan_wipes;
wait_queue_head_t osb_wipe_event;
};
#define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)

1
fs/ocfs2/ocfs2_fs.h
View file

@ -138,7 +138,6 @@
/* Journal limits (in bytes) */
#define OCFS2_MIN_JOURNAL_SIZE (4 * 1024 * 1024)
#define OCFS2_MAX_JOURNAL_SIZE (500 * 1024 * 1024)
struct ocfs2_system_inode_info {
char *si_name;

11
fs/ocfs2/super.c
View file

@ -1325,6 +1325,16 @@ static int ocfs2_initialize_super(struct super_block *sb,
}
mlog(ML_NOTICE, "max_slots for this device: %u\n", osb->max_slots);
init_waitqueue_head(&osb->osb_wipe_event);
osb->osb_orphan_wipes = kcalloc(osb->max_slots,
sizeof(*osb->osb_orphan_wipes),
GFP_KERNEL);
if (!osb->osb_orphan_wipes) {
status = -ENOMEM;
mlog_errno(status);
goto bail;
}
osb->s_feature_compat =
le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat);
osb->s_feature_ro_compat =
@ -1638,6 +1648,7 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb)
if (osb->slot_info)
ocfs2_free_slot_info(osb->slot_info);
kfree(osb->osb_orphan_wipes);
/* FIXME
* This belongs in journal shutdown, but because we have to
* allocate osb->journal at the start of ocfs2_initalize_osb(),