diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 9edcde4974aa22a37841d8b22aac86c7e435cea6..f9a3e8942669f436ad64fa00b550a46f34cd44be 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -1914,7 +1914,8 @@ static void ocfs2_adjust_adjacent_records(struct ocfs2_extent_rec *left_rec,
* immediately to their right.
*/
left_clusters = le32_to_cpu(right_child_el->l_recs[0].e_cpos);
- if (ocfs2_is_empty_extent(&right_child_el->l_recs[0])) {
+ if (!ocfs2_rec_clusters(right_child_el, &right_child_el->l_recs[0])) {
+ BUG_ON(right_child_el->l_tree_depth);
BUG_ON(le16_to_cpu(right_child_el->l_next_free_rec) <= 1);
left_clusters = le32_to_cpu(right_child_el->l_recs[1].e_cpos);
}
@@ -2476,15 +2477,37 @@ static int ocfs2_rotate_tree_right(struct inode *inode,
return ret;
}
-static void ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle,
- struct ocfs2_path *path)
+static int ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle,
+ int subtree_index, struct ocfs2_path *path)
{
- int i, idx;
+ int i, idx, ret;
struct ocfs2_extent_rec *rec;
struct ocfs2_extent_list *el;
struct ocfs2_extent_block *eb;
u32 range;
+ /*
+ * In normal tree rotation process, we will never touch the
+ * tree branch above subtree_index and ocfs2_extend_rotate_transaction
+ * doesn't reserve the credits for them either.
+ *
+ * But we do have a special case here which will update the rightmost
+ * records for all the bh in the path.
+ * So we have to allocate extra credits and access them.
+ */
+ ret = ocfs2_extend_trans(handle,
+ handle->h_buffer_credits + subtree_index);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_journal_access_path(inode, handle, path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
/* Path should always be rightmost. */
eb = (struct ocfs2_extent_block *)path_leaf_bh(path)->b_data;
BUG_ON(eb->h_next_leaf_blk != 0ULL);
@@ -2505,6 +2528,8 @@ static void ocfs2_update_edge_lengths(struct inode *inode, handle_t *handle,
ocfs2_journal_dirty(handle, path->p_node[i].bh);
}
+out:
+ return ret;
}
static void ocfs2_unlink_path(struct inode *inode, handle_t *handle,
@@ -2717,7 +2742,12 @@ static int ocfs2_rotate_subtree_left(struct inode *inode, handle_t *handle,
if (del_right_subtree) {
ocfs2_unlink_subtree(inode, handle, left_path, right_path,
subtree_index, dealloc);
- ocfs2_update_edge_lengths(inode, handle, left_path);
+ ret = ocfs2_update_edge_lengths(inode, handle, subtree_index,
+ left_path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
eb = (struct ocfs2_extent_block *)path_leaf_bh(left_path)->b_data;
ocfs2_et_set_last_eb_blk(et, le64_to_cpu(eb->h_blkno));
@@ -3034,7 +3064,12 @@ static int ocfs2_remove_rightmost_path(struct inode *inode, handle_t *handle,
ocfs2_unlink_subtree(inode, handle, left_path, path,
subtree_index, dealloc);
- ocfs2_update_edge_lengths(inode, handle, left_path);
+ ret = ocfs2_update_edge_lengths(inode, handle, subtree_index,
+ left_path);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
eb = (struct ocfs2_extent_block *)path_leaf_bh(left_path)->b_data;
ocfs2_et_set_last_eb_blk(et, le64_to_cpu(eb->h_blkno));
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index b2c52b3a1484f1c57c4b098bf9706fe21c186ac0..b401654011a2b64c4e55f87c7916e3badc07f68e 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -193,6 +193,7 @@ static int ocfs2_get_block(struct inode *inode, sector_t iblock,
(unsigned long long)OCFS2_I(inode)->ip_blkno);
mlog(ML_ERROR, "Size %llu, clusters %u\n", (unsigned long long)i_size_read(inode), OCFS2_I(inode)->ip_clusters);
dump_stack();
+ goto bail;
}
past_eof = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode));
@@ -894,18 +895,17 @@ struct ocfs2_write_cluster_desc {
*/
unsigned c_new;
unsigned c_unwritten;
+ unsigned c_needs_zero;
};
-static inline int ocfs2_should_zero_cluster(struct ocfs2_write_cluster_desc *d)
-{
- return d->c_new || d->c_unwritten;
-}
-
struct ocfs2_write_ctxt {
/* Logical cluster position / len of write */
u32 w_cpos;
u32 w_clen;
+ /* First cluster allocated in a nonsparse extend */
+ u32 w_first_new_cpos;
+
struct ocfs2_write_cluster_desc w_desc[OCFS2_MAX_CLUSTERS_PER_PAGE];
/*
@@ -983,6 +983,7 @@ static int ocfs2_alloc_write_ctxt(struct ocfs2_write_ctxt **wcp,
return -ENOMEM;
wc->w_cpos = pos >> osb->s_clustersize_bits;
+ wc->w_first_new_cpos = UINT_MAX;
cend = (pos + len - 1) >> osb->s_clustersize_bits;
wc->w_clen = cend - wc->w_cpos + 1;
get_bh(di_bh);
@@ -1217,20 +1218,18 @@ static int ocfs2_grab_pages_for_write(struct address_space *mapping,
*/
static int ocfs2_write_cluster(struct address_space *mapping,
u32 phys, unsigned int unwritten,
+ unsigned int should_zero,
struct ocfs2_alloc_context *data_ac,
struct ocfs2_alloc_context *meta_ac,
struct ocfs2_write_ctxt *wc, u32 cpos,
loff_t user_pos, unsigned user_len)
{
- int ret, i, new, should_zero = 0;
+ int ret, i, new;
u64 v_blkno, p_blkno;
struct inode *inode = mapping->host;
struct ocfs2_extent_tree et;
new = phys == 0 ? 1 : 0;
- if (new || unwritten)
- should_zero = 1;
-
if (new) {
u32 tmp_pos;
@@ -1301,7 +1300,7 @@ static int ocfs2_write_cluster(struct address_space *mapping,
if (tmpret) {
mlog_errno(tmpret);
if (ret == 0)
- tmpret = ret;
+ ret = tmpret;
}
}
@@ -1341,7 +1340,9 @@ static int ocfs2_write_cluster_by_desc(struct address_space *mapping,
local_len = osb->s_clustersize - cluster_off;
ret = ocfs2_write_cluster(mapping, desc->c_phys,
- desc->c_unwritten, data_ac, meta_ac,
+ desc->c_unwritten,
+ desc->c_needs_zero,
+ data_ac, meta_ac,
wc, desc->c_cpos, pos, local_len);
if (ret) {
mlog_errno(ret);
@@ -1391,14 +1392,14 @@ static void ocfs2_set_target_boundaries(struct ocfs2_super *osb,
* newly allocated cluster.
*/
desc = &wc->w_desc[0];
- if (ocfs2_should_zero_cluster(desc))
+ if (desc->c_needs_zero)
ocfs2_figure_cluster_boundaries(osb,
desc->c_cpos,
&wc->w_target_from,
NULL);
desc = &wc->w_desc[wc->w_clen - 1];
- if (ocfs2_should_zero_cluster(desc))
+ if (desc->c_needs_zero)
ocfs2_figure_cluster_boundaries(osb,
desc->c_cpos,
NULL,
@@ -1466,13 +1467,28 @@ static int ocfs2_populate_write_desc(struct inode *inode,
phys++;
}
+ /*
+ * If w_first_new_cpos is < UINT_MAX, we have a non-sparse
+ * file that got extended. w_first_new_cpos tells us
+ * where the newly allocated clusters are so we can
+ * zero them.
+ */
+ if (desc->c_cpos >= wc->w_first_new_cpos) {
+ BUG_ON(phys == 0);
+ desc->c_needs_zero = 1;
+ }
+
desc->c_phys = phys;
if (phys == 0) {
desc->c_new = 1;
+ desc->c_needs_zero = 1;
*clusters_to_alloc = *clusters_to_alloc + 1;
}
- if (ext_flags & OCFS2_EXT_UNWRITTEN)
+
+ if (ext_flags & OCFS2_EXT_UNWRITTEN) {
desc->c_unwritten = 1;
+ desc->c_needs_zero = 1;
+ }
num_clusters--;
}
@@ -1632,10 +1648,13 @@ static int ocfs2_expand_nonsparse_inode(struct inode *inode, loff_t pos,
if (newsize <= i_size_read(inode))
return 0;
- ret = ocfs2_extend_no_holes(inode, newsize, newsize - len);
+ ret = ocfs2_extend_no_holes(inode, newsize, pos);
if (ret)
mlog_errno(ret);
+ wc->w_first_new_cpos =
+ ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode));
+
return ret;
}
@@ -1644,7 +1663,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
struct page **pagep, void **fsdata,
struct buffer_head *di_bh, struct page *mmap_page)
{
- int ret, credits = OCFS2_INODE_UPDATE_CREDITS;
+ int ret, cluster_of_pages, credits = OCFS2_INODE_UPDATE_CREDITS;
unsigned int clusters_to_alloc, extents_to_split;
struct ocfs2_write_ctxt *wc;
struct inode *inode = mapping->host;
@@ -1722,8 +1741,19 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
}
- ocfs2_set_target_boundaries(osb, wc, pos, len,
- clusters_to_alloc + extents_to_split);
+ /*
+ * We have to zero sparse allocated clusters, unwritten extent clusters,
+ * and non-sparse clusters we just extended. For non-sparse writes,
+ * we know zeros will only be needed in the first and/or last cluster.
+ */
+ if (clusters_to_alloc || extents_to_split ||
+ wc->w_desc[0].c_needs_zero ||
+ wc->w_desc[wc->w_clen - 1].c_needs_zero)
+ cluster_of_pages = 1;
+ else
+ cluster_of_pages = 0;
+
+ ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages);
handle = ocfs2_start_trans(osb, credits);
if (IS_ERR(handle)) {
@@ -1756,8 +1786,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
* extent.
*/
ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos,
- clusters_to_alloc + extents_to_split,
- mmap_page);
+ cluster_of_pages, mmap_page);
if (ret) {
mlog_errno(ret);
goto out_quota;
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index b574431a031d5cd9721de53c46a80825f752bb9d..2f28b7de2c8d2cae30d052e54fc12fa7e91c740f 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -310,22 +310,19 @@ int ocfs2_dentry_attach_lock(struct dentry *dentry,
return ret;
}
-static DEFINE_SPINLOCK(dentry_list_lock);
+DEFINE_SPINLOCK(dentry_list_lock);
/* We limit the number of dentry locks to drop in one go. We have
* this limit so that we don't starve other users of ocfs2_wq. */
#define DL_INODE_DROP_COUNT 64
/* Drop inode references from dentry locks */
-void ocfs2_drop_dl_inodes(struct work_struct *work)
+static void __ocfs2_drop_dl_inodes(struct ocfs2_super *osb, int drop_count)
{
- struct ocfs2_super *osb = container_of(work, struct ocfs2_super,
- dentry_lock_work);
struct ocfs2_dentry_lock *dl;
- int drop_count = DL_INODE_DROP_COUNT;
spin_lock(&dentry_list_lock);
- while (osb->dentry_lock_list && drop_count--) {
+ while (osb->dentry_lock_list && (drop_count < 0 || drop_count--)) {
dl = osb->dentry_lock_list;
osb->dentry_lock_list = dl->dl_next;
spin_unlock(&dentry_list_lock);
@@ -333,11 +330,32 @@ void ocfs2_drop_dl_inodes(struct work_struct *work)
kfree(dl);
spin_lock(&dentry_list_lock);
}
- if (osb->dentry_lock_list)
+ spin_unlock(&dentry_list_lock);
+}
+
+void ocfs2_drop_dl_inodes(struct work_struct *work)
+{
+ struct ocfs2_super *osb = container_of(work, struct ocfs2_super,
+ dentry_lock_work);
+
+ __ocfs2_drop_dl_inodes(osb, DL_INODE_DROP_COUNT);
+ /*
+ * Don't queue dropping if umount is in progress. We flush the
+ * list in ocfs2_dismount_volume
+ */
+ spin_lock(&dentry_list_lock);
+ if (osb->dentry_lock_list &&
+ !ocfs2_test_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED))
queue_work(ocfs2_wq, &osb->dentry_lock_work);
spin_unlock(&dentry_list_lock);
}
+/* Flush the whole work queue */
+void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb)
+{
+ __ocfs2_drop_dl_inodes(osb, -1);
+}
+
/*
* ocfs2_dentry_iput() and friends.
*
@@ -368,7 +386,8 @@ static void ocfs2_drop_dentry_lock(struct ocfs2_super *osb,
/* We leave dropping of inode reference to ocfs2_wq as that can
* possibly lead to inode deletion which gets tricky */
spin_lock(&dentry_list_lock);
- if (!osb->dentry_lock_list)
+ if (!osb->dentry_lock_list &&
+ !ocfs2_test_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED))
queue_work(ocfs2_wq, &osb->dentry_lock_work);
dl->dl_next = osb->dentry_lock_list;
osb->dentry_lock_list = dl;
diff --git a/fs/ocfs2/dcache.h b/fs/ocfs2/dcache.h
index faa12e75f98d117a9cf2f7f0bf519a05b83c5401..f5dd1789acf1b4527373217ce7c6b0374695eb17 100644
--- a/fs/ocfs2/dcache.h
+++ b/fs/ocfs2/dcache.h
@@ -49,10 +49,13 @@ struct ocfs2_dentry_lock {
int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode,
u64 parent_blkno);
+extern spinlock_t dentry_list_lock;
+
void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
struct ocfs2_dentry_lock *dl);
void ocfs2_drop_dl_inodes(struct work_struct *work);
+void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb);
struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno,
int skip_unhashed);
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c
index d07ddbe4b2836d3e3e6d0f002808d8c36ef6c591..81eff8e583222747cc824ce02d6edde94378e711 100644
--- a/fs/ocfs2/dlm/dlmast.c
+++ b/fs/ocfs2/dlm/dlmast.c
@@ -103,7 +103,6 @@ static void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock)
lock->ast_pending, lock->ml.type);
BUG();
}
- BUG_ON(!list_empty(&lock->ast_list));
if (lock->ast_pending)
mlog(0, "lock has an ast getting flushed right now\n");
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index bcb9260c37359a832c601f0c00e718094063af25..43e6e328056902a0fdd8cb98c7961b76a912c3dd 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -1118,7 +1118,7 @@ static int dlm_send_mig_lockres_msg(struct dlm_ctxt *dlm,
mlog(0, "%s:%.*s: sending mig lockres (%s) to %u\n",
dlm->name, res->lockname.len, res->lockname.name,
- orig_flags & DLM_MRES_MIGRATION ? "migrate" : "recovery",
+ orig_flags & DLM_MRES_MIGRATION ? "migration" : "recovery",
send_to);
/* send it */
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 62442e413a001cfbe57607c43e06d408418cf13e..aa501d3f93f1bcec3af38a24361ab61cda2cc052 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1851,6 +1851,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
if (ret)
goto out_dio;
+ count = ocount;
ret = generic_write_checks(file, ppos, &count,
S_ISBLK(inode->i_mode));
if (ret)
@@ -1918,8 +1919,10 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
mutex_unlock(&inode->i_mutex);
+ if (written)
+ ret = written;
mlog_exit(ret);
- return written ? written : ret;
+ return ret;
}
static int ocfs2_splice_to_file(struct pipe_inode_info *pipe,
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index f033760ecbeaae0dde0944d190828aedb7b9c5d0..c48b93ac6b65c55bc2b90daf8b3efa1397b9b6e4 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1954,10 +1954,16 @@ void ocfs2_orphan_scan_init(struct ocfs2_super *osb)
os->os_osb = osb;
os->os_count = 0;
os->os_seqno = 0;
- os->os_scantime = CURRENT_TIME;
mutex_init(&os->os_lock);
INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work);
+}
+void ocfs2_orphan_scan_start(struct ocfs2_super *osb)
+{
+ struct ocfs2_orphan_scan *os;
+
+ os = &osb->osb_orphan_scan;
+ os->os_scantime = CURRENT_TIME;
if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb))
atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE);
else {
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 5432c7f79cc6a959d3c39cd2cbcb41663ef599b5..2c3222aec6228a83b9acac2122e42beea94042fb 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -145,6 +145,7 @@ static inline void ocfs2_inode_set_new(struct ocfs2_super *osb,
/* Exported only for the journal struct init code in super.c. Do not call. */
void ocfs2_orphan_scan_init(struct ocfs2_super *osb);
+void ocfs2_orphan_scan_start(struct ocfs2_super *osb);
void ocfs2_orphan_scan_stop(struct ocfs2_super *osb);
void ocfs2_orphan_scan_exit(struct ocfs2_super *osb);
@@ -329,20 +330,27 @@ int ocfs2_journal_dirty(handle_t *handle,
/* extended attribute block update */
#define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1
+/* Update of a single quota block */
+#define OCFS2_QUOTA_BLOCK_UPDATE_CREDITS 1
+
/* global quotafile inode update, data block */
-#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1)
+#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \
+ OCFS2_QUOTA_BLOCK_UPDATE_CREDITS)
+#define OCFS2_LOCAL_QINFO_WRITE_CREDITS OCFS2_QUOTA_BLOCK_UPDATE_CREDITS
/*
* The two writes below can accidentally see global info dirty due
* to set_info() quotactl so make them prepared for the writes.
*/
/* quota data block, global info */
/* Write to local quota file */
-#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + 1)
+#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \
+ OCFS2_QUOTA_BLOCK_UPDATE_CREDITS)
/* global quota data block, local quota data block, global quota inode,
* global quota info */
-#define OCFS2_QSYNC_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 3)
+#define OCFS2_QSYNC_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \
+ 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS)
static inline int ocfs2_quota_trans_credits(struct super_block *sb)
{
@@ -355,11 +363,6 @@ static inline int ocfs2_quota_trans_credits(struct super_block *sb)
return credits;
}
-/* Number of credits needed for removing quota structure from file */
-int ocfs2_calc_qdel_credits(struct super_block *sb, int type);
-/* Number of credits needed for initialization of new quota structure */
-int ocfs2_calc_qinit_credits(struct super_block *sb, int type);
-
/* group extend. inode update and last group update. */
#define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1)
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index c9345ebb849343873adf6b2b67ae226f8181f65e..39e1d5a39505221a458846ab37950c922d6da76b 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -224,10 +224,12 @@ enum ocfs2_mount_options
OCFS2_MOUNT_GRPQUOTA = 1 << 10, /* We support group quotas */
};
-#define OCFS2_OSB_SOFT_RO 0x0001
-#define OCFS2_OSB_HARD_RO 0x0002
-#define OCFS2_OSB_ERROR_FS 0x0004
-#define OCFS2_DEFAULT_ATIME_QUANTUM 60
+#define OCFS2_OSB_SOFT_RO 0x0001
+#define OCFS2_OSB_HARD_RO 0x0002
+#define OCFS2_OSB_ERROR_FS 0x0004
+#define OCFS2_OSB_DROP_DENTRY_LOCK_IMMED 0x0008
+
+#define OCFS2_DEFAULT_ATIME_QUANTUM 60
struct ocfs2_journal;
struct ocfs2_slot_info;
@@ -490,6 +492,18 @@ static inline void ocfs2_set_osb_flag(struct ocfs2_super *osb,
spin_unlock(&osb->osb_lock);
}
+
+static inline unsigned long ocfs2_test_osb_flag(struct ocfs2_super *osb,
+ unsigned long flag)
+{
+ unsigned long ret;
+
+ spin_lock(&osb->osb_lock);
+ ret = osb->osb_flags & flag;
+ spin_unlock(&osb->osb_lock);
+ return ret;
+}
+
static inline void ocfs2_set_ro_flag(struct ocfs2_super *osb,
int hard)
{
diff --git a/fs/ocfs2/quota.h b/fs/ocfs2/quota.h
index 7365e2e08706ef6ea07b5f034310f5fec6fd9e4a..3fb96fcd4c81cd185db0e7b5132f831c322dedca 100644
--- a/fs/ocfs2/quota.h
+++ b/fs/ocfs2/quota.h
@@ -50,7 +50,6 @@ struct ocfs2_mem_dqinfo {
unsigned int dqi_chunks; /* Number of chunks in local quota file */
unsigned int dqi_blocks; /* Number of blocks allocated for local quota file */
unsigned int dqi_syncms; /* How often should we sync with other nodes */
- unsigned int dqi_syncjiff; /* Precomputed dqi_syncms in jiffies */
struct list_head dqi_chunk; /* List of chunks */
struct inode *dqi_gqinode; /* Global quota file inode */
struct ocfs2_lock_res dqi_gqlock; /* Lock protecting quota information structure */
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index edfa60cd155c18e9ac67a1fe6ae1476900fed8b7..bf7742d0ee3bba05a7ceabab948aff62f27482f0 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -69,6 +69,7 @@ static void ocfs2_global_mem2diskdqb(void *dp, struct dquot *dquot)
d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
d->dqb_btime = cpu_to_le64(m->dqb_btime);
d->dqb_itime = cpu_to_le64(m->dqb_itime);
+ d->dqb_pad1 = d->dqb_pad2 = 0;
}
static int ocfs2_global_is_id(void *dp, struct dquot *dquot)
@@ -211,14 +212,13 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
mutex_lock_nested(&gqinode->i_mutex, I_MUTEX_QUOTA);
if (gqinode->i_size < off + len) {
- down_write(&OCFS2_I(gqinode)->ip_alloc_sem);
- err = ocfs2_extend_no_holes(gqinode, off + len, off);
- up_write(&OCFS2_I(gqinode)->ip_alloc_sem);
- if (err < 0)
- goto out;
+ loff_t rounded_end =
+ ocfs2_align_bytes_to_blocks(sb, off + len);
+
+ /* Space is already allocated in ocfs2_global_read_dquot() */
err = ocfs2_simple_size_update(gqinode,
oinfo->dqi_gqi_bh,
- off + len);
+ rounded_end);
if (err < 0)
goto out;
new = 1;
@@ -234,7 +234,7 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
}
if (err) {
mlog_errno(err);
- return err;
+ goto out;
}
lock_buffer(bh);
if (new)
@@ -342,7 +342,6 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
oinfo->dqi_syncms = le32_to_cpu(dinfo.dqi_syncms);
- oinfo->dqi_syncjiff = msecs_to_jiffies(oinfo->dqi_syncms);
oinfo->dqi_gi.dqi_blocks = le32_to_cpu(dinfo.dqi_blocks);
oinfo->dqi_gi.dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk);
oinfo->dqi_gi.dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry);
@@ -352,7 +351,7 @@ int ocfs2_global_read_info(struct super_block *sb, int type)
oinfo->dqi_gi.dqi_qtree_depth = qtree_depth(&oinfo->dqi_gi);
INIT_DELAYED_WORK(&oinfo->dqi_sync_work, qsync_work_fn);
queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
- oinfo->dqi_syncjiff);
+ msecs_to_jiffies(oinfo->dqi_syncms));
out_err:
mlog_exit(status);
@@ -402,13 +401,36 @@ int ocfs2_global_write_info(struct super_block *sb, int type)
return err;
}
+static int ocfs2_global_qinit_alloc(struct super_block *sb, int type)
+{
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+
+ /*
+ * We may need to allocate tree blocks and a leaf block but not the
+ * root block
+ */
+ return oinfo->dqi_gi.dqi_qtree_depth;
+}
+
+static int ocfs2_calc_global_qinit_credits(struct super_block *sb, int type)
+{
+ /* We modify all the allocated blocks, tree root, and info block */
+ return (ocfs2_global_qinit_alloc(sb, type) + 2) *
+ OCFS2_QUOTA_BLOCK_UPDATE_CREDITS;
+}
+
/* Read in information from global quota file and acquire a reference to it.
* dquot_acquire() has already started the transaction and locked quota file */
int ocfs2_global_read_dquot(struct dquot *dquot)
{
int err, err2, ex = 0;
- struct ocfs2_mem_dqinfo *info =
- sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+ struct super_block *sb = dquot->dq_sb;
+ int type = dquot->dq_type;
+ struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;
+ struct ocfs2_super *osb = OCFS2_SB(sb);
+ struct inode *gqinode = info->dqi_gqinode;
+ int need_alloc = ocfs2_global_qinit_alloc(sb, type);
+ handle_t *handle = NULL;
err = ocfs2_qinfo_lock(info, 0);
if (err < 0)
@@ -419,14 +441,33 @@ int ocfs2_global_read_dquot(struct dquot *dquot)
OCFS2_DQUOT(dquot)->dq_use_count++;
OCFS2_DQUOT(dquot)->dq_origspace = dquot->dq_dqb.dqb_curspace;
OCFS2_DQUOT(dquot)->dq_originodes = dquot->dq_dqb.dqb_curinodes;
+ ocfs2_qinfo_unlock(info, 0);
+
if (!dquot->dq_off) { /* No real quota entry? */
- /* Upgrade to exclusive lock for allocation */
- ocfs2_qinfo_unlock(info, 0);
- err = ocfs2_qinfo_lock(info, 1);
- if (err < 0)
- goto out_qlock;
ex = 1;
+ /*
+ * Add blocks to quota file before we start a transaction since
+ * locking allocators ranks above a transaction start
+ */
+ WARN_ON(journal_current_handle());
+ down_write(&OCFS2_I(gqinode)->ip_alloc_sem);
+ err = ocfs2_extend_no_holes(gqinode,
+ gqinode->i_size + (need_alloc << sb->s_blocksize_bits),
+ gqinode->i_size);
+ up_write(&OCFS2_I(gqinode)->ip_alloc_sem);
+ if (err < 0)
+ goto out;
}
+
+ handle = ocfs2_start_trans(osb,
+ ocfs2_calc_global_qinit_credits(sb, type));
+ if (IS_ERR(handle)) {
+ err = PTR_ERR(handle);
+ goto out;
+ }
+ err = ocfs2_qinfo_lock(info, ex);
+ if (err < 0)
+ goto out_trans;
err = qtree_write_dquot(&info->dqi_gi, dquot);
if (ex && info_dirty(sb_dqinfo(dquot->dq_sb, dquot->dq_type))) {
err2 = __ocfs2_global_write_info(dquot->dq_sb, dquot->dq_type);
@@ -438,6 +479,9 @@ int ocfs2_global_read_dquot(struct dquot *dquot)
ocfs2_qinfo_unlock(info, 1);
else
ocfs2_qinfo_unlock(info, 0);
+out_trans:
+ if (handle)
+ ocfs2_commit_trans(osb, handle);
out:
if (err < 0)
mlog_errno(err);
@@ -607,7 +651,7 @@ static void qsync_work_fn(struct work_struct *work)
dquot_scan_active(sb, ocfs2_sync_dquot_helper, oinfo->dqi_type);
queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
- oinfo->dqi_syncjiff);
+ msecs_to_jiffies(oinfo->dqi_syncms));
}
/*
@@ -635,20 +679,18 @@ static int ocfs2_write_dquot(struct dquot *dquot)
return status;
}
-int ocfs2_calc_qdel_credits(struct super_block *sb, int type)
+static int ocfs2_calc_qdel_credits(struct super_block *sb, int type)
{
- struct ocfs2_mem_dqinfo *oinfo;
- int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
- OCFS2_FEATURE_RO_COMPAT_GRPQUOTA };
-
- if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type]))
- return 0;
-
- oinfo = sb_dqinfo(sb, type)->dqi_priv;
- /* We modify tree, leaf block, global info, local chunk header,
- * global and local inode */
- return oinfo->dqi_gi.dqi_qtree_depth + 2 + 1 +
- 2 * OCFS2_INODE_UPDATE_CREDITS;
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ /*
+ * We modify tree, leaf block, global info, local chunk header,
+ * global and local inode; OCFS2_QINFO_WRITE_CREDITS already
+ * accounts for inode update
+ */
+ return (oinfo->dqi_gi.dqi_qtree_depth + 2) *
+ OCFS2_QUOTA_BLOCK_UPDATE_CREDITS +
+ OCFS2_QINFO_WRITE_CREDITS +
+ OCFS2_INODE_UPDATE_CREDITS;
}
static int ocfs2_release_dquot(struct dquot *dquot)
@@ -680,33 +722,10 @@ static int ocfs2_release_dquot(struct dquot *dquot)
return status;
}
-int ocfs2_calc_qinit_credits(struct super_block *sb, int type)
-{
- struct ocfs2_mem_dqinfo *oinfo;
- int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
- OCFS2_FEATURE_RO_COMPAT_GRPQUOTA };
- struct ocfs2_dinode *lfe, *gfe;
-
- if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type]))
- return 0;
-
- oinfo = sb_dqinfo(sb, type)->dqi_priv;
- gfe = (struct ocfs2_dinode *)oinfo->dqi_gqi_bh->b_data;
- lfe = (struct ocfs2_dinode *)oinfo->dqi_lqi_bh->b_data;
- /* We can extend local file + global file. In local file we
- * can modify info, chunk header block and dquot block. In
- * global file we can modify info, tree and leaf block */
- return ocfs2_calc_extend_credits(sb, &lfe->id2.i_list, 0) +
- ocfs2_calc_extend_credits(sb, &gfe->id2.i_list, 0) +
- 3 + oinfo->dqi_gi.dqi_qtree_depth + 2;
-}
-
static int ocfs2_acquire_dquot(struct dquot *dquot)
{
- handle_t *handle;
struct ocfs2_mem_dqinfo *oinfo =
sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
- struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
int status = 0;
mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
@@ -715,16 +734,7 @@ static int ocfs2_acquire_dquot(struct dquot *dquot)
status = ocfs2_lock_global_qf(oinfo, 1);
if (status < 0)
goto out;
- handle = ocfs2_start_trans(osb,
- ocfs2_calc_qinit_credits(dquot->dq_sb, dquot->dq_type));
- if (IS_ERR(handle)) {
- status = PTR_ERR(handle);
- mlog_errno(status);
- goto out_ilock;
- }
status = dquot_acquire(dquot);
- ocfs2_commit_trans(osb, handle);
-out_ilock:
ocfs2_unlock_global_qf(oinfo, 1);
out:
mlog_exit(status);
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 5a460fa8255384f615d2dd7ca8836d3091fc58b5..bdb09cb6e1fef216821b7e7a8d94503ce7d097fd 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -20,6 +20,7 @@
#include "sysfile.h"
#include "dlmglue.h"
#include "quota.h"
+#include "uptodate.h"
/* Number of local quota structures per block */
static inline unsigned int ol_quota_entries_per_block(struct super_block *sb)
@@ -100,7 +101,8 @@ static int ocfs2_modify_bh(struct inode *inode, struct buffer_head *bh,
handle_t *handle;
int status;
- handle = ocfs2_start_trans(OCFS2_SB(sb), 1);
+ handle = ocfs2_start_trans(OCFS2_SB(sb),
+ OCFS2_QUOTA_BLOCK_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
@@ -610,7 +612,8 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb,
goto out_bh;
/* Mark quota file as clean if we are recovering quota file of
* some other node. */
- handle = ocfs2_start_trans(osb, 1);
+ handle = ocfs2_start_trans(osb,
+ OCFS2_LOCAL_QINFO_WRITE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
@@ -940,7 +943,7 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
struct ocfs2_local_disk_chunk *dchunk;
int status;
handle_t *handle;
- struct buffer_head *bh = NULL;
+ struct buffer_head *bh = NULL, *dbh = NULL;
u64 p_blkno;
/* We are protected by dqio_sem so no locking needed */
@@ -964,32 +967,35 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
mlog_errno(status);
goto out;
}
+ /* Local quota info and two new blocks we initialize */
+ handle = ocfs2_start_trans(OCFS2_SB(sb),
+ OCFS2_LOCAL_QINFO_WRITE_CREDITS +
+ 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out;
+ }
+ /* Initialize chunk header */
down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
&p_blkno, NULL, NULL);
up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
- goto out;
+ goto out_trans;
}
bh = sb_getblk(sb, p_blkno);
if (!bh) {
status = -ENOMEM;
mlog_errno(status);
- goto out;
+ goto out_trans;
}
dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data;
-
- handle = ocfs2_start_trans(OCFS2_SB(sb), 2);
- if (IS_ERR(handle)) {
- status = PTR_ERR(handle);
- mlog_errno(status);
- goto out;
- }
-
+ ocfs2_set_new_buffer_uptodate(lqinode, bh);
status = ocfs2_journal_access_dq(handle, lqinode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto out_trans;
@@ -999,7 +1005,6 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
memset(dchunk->dqc_bitmap, 0,
sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) -
OCFS2_QBLK_RESERVED_SPACE);
- set_buffer_uptodate(bh);
unlock_buffer(bh);
status = ocfs2_journal_dirty(handle, bh);
if (status < 0) {
@@ -1007,6 +1012,38 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
goto out_trans;
}
+ /* Initialize new block with structures */
+ down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
+ status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks + 1,
+ &p_blkno, NULL, NULL);
+ up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ dbh = sb_getblk(sb, p_blkno);
+ if (!dbh) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto out_trans;
+ }
+ ocfs2_set_new_buffer_uptodate(lqinode, dbh);
+ status = ocfs2_journal_access_dq(handle, lqinode, dbh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ lock_buffer(dbh);
+ memset(dbh->b_data, 0, sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE);
+ unlock_buffer(dbh);
+ status = ocfs2_journal_dirty(handle, dbh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+
+ /* Update local quotafile info */
oinfo->dqi_blocks += 2;
oinfo->dqi_chunks++;
status = ocfs2_local_write_info(sb, type);
@@ -1031,6 +1068,7 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
ocfs2_commit_trans(OCFS2_SB(sb), handle);
out:
brelse(bh);
+ brelse(dbh);
kmem_cache_free(ocfs2_qf_chunk_cachep, chunk);
return ERR_PTR(status);
}
@@ -1048,6 +1086,8 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
struct ocfs2_local_disk_chunk *dchunk;
int epb = ol_quota_entries_per_block(sb);
unsigned int chunk_blocks;
+ struct buffer_head *bh;
+ u64 p_blkno;
int status;
handle_t *handle;
@@ -1075,12 +1115,49 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
mlog_errno(status);
goto out;
}
- handle = ocfs2_start_trans(OCFS2_SB(sb), 2);
+
+ /* Get buffer from the just added block */
+ down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
+ status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
+ &p_blkno, NULL, NULL);
+ up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ bh = sb_getblk(sb, p_blkno);
+ if (!bh) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto out;
+ }
+ ocfs2_set_new_buffer_uptodate(lqinode, bh);
+
+ /* Local quota info, chunk header and the new block we initialize */
+ handle = ocfs2_start_trans(OCFS2_SB(sb),
+ OCFS2_LOCAL_QINFO_WRITE_CREDITS +
+ 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto out;
}
+ /* Zero created block */
+ status = ocfs2_journal_access_dq(handle, lqinode, bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ lock_buffer(bh);
+ memset(bh->b_data, 0, sb->s_blocksize);
+ unlock_buffer(bh);
+ status = ocfs2_journal_dirty(handle, bh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ /* Update chunk header */
status = ocfs2_journal_access_dq(handle, lqinode, chunk->qc_headerbh,
OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
@@ -1097,6 +1174,7 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
mlog_errno(status);
goto out_trans;
}
+ /* Update file header */
oinfo->dqi_blocks++;
status = ocfs2_local_write_info(sb, type);
if (status < 0) {
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index 3f661376a2ded76e08769f1766de3c1523d448d9..e49c41050264dfa9d36afc48e742b626ee9d2755 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -17,6 +17,7 @@
* General Public License for more details.
*/
+#include <linux/kernel.h>
#include <linux/crc32.h>
#include <linux/module.h>
@@ -153,7 +154,7 @@ static int status_map[] = {
static int dlm_status_to_errno(enum dlm_status status)
{
- BUG_ON(status > (sizeof(status_map) / sizeof(status_map[0])));
+ BUG_ON(status < 0 || status >= ARRAY_SIZE(status_map));
return status_map[status];
}
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 7efb349fb9bdafe0678bd63786db244bba410b4a..b0ee0fdf799a514c9555b34f4983c734825badde 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -777,6 +777,7 @@ static int ocfs2_sb_probe(struct super_block *sb,
}
di = (struct ocfs2_dinode *) (*bh)->b_data;
memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats));
+ spin_lock_init(&stats->b_lock);
status = ocfs2_verify_volume(di, *bh, blksize, stats);
if (status >= 0)
goto bail;
@@ -1182,7 +1183,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
wake_up(&osb->osb_mount_event);
/* Start this when the mount is almost sure of being successful */
- ocfs2_orphan_scan_init(osb);
+ ocfs2_orphan_scan_start(osb);
mlog_exit(status);
return status;
@@ -1213,14 +1214,27 @@ static int ocfs2_get_sb(struct file_system_type *fs_type,
mnt);
}
+static void ocfs2_kill_sb(struct super_block *sb)
+{
+ struct ocfs2_super *osb = OCFS2_SB(sb);
+
+ /* Prevent further queueing of inode drop events */
+ spin_lock(&dentry_list_lock);
+ ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED);
+ spin_unlock(&dentry_list_lock);
+ /* Wait for work to finish and/or remove it */
+ cancel_work_sync(&osb->dentry_lock_work);
+
+ kill_block_super(sb);
+}
+
static struct file_system_type ocfs2_fs_type = {
.owner = THIS_MODULE,
.name = "ocfs2",
.get_sb = ocfs2_get_sb, /* is this called when we mount
* the fs? */
- .kill_sb = kill_block_super, /* set to the generic one
- * right now, but do we
- * need to change that? */
+ .kill_sb = ocfs2_kill_sb,
+
.fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE,
.next = NULL
};
@@ -1819,6 +1833,12 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
debugfs_remove(osb->osb_ctxt);
+ /*
+ * Flush inode dropping work queue so that deletes are
+ * performed while the filesystem is still working
+ */
+ ocfs2_drop_all_dl_inodes(osb);
+
/* Orphan scan should be stopped as early as possible */
ocfs2_orphan_scan_stop(osb);
@@ -1981,6 +2001,8 @@ static int ocfs2_initialize_super(struct super_block *sb,
snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u",
MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev));
+ ocfs2_orphan_scan_init(osb);
+
status = ocfs2_recovery_init(osb);
if (status) {
mlog(ML_ERROR, "Unable to initialize recovery state\n");
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index ba320e250747fd01dedcd06a85df0d2e867dbe44..d1a27cda984f10811fb66fe7a7a53e76f6036d34 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -1052,7 +1052,8 @@ static int ocfs2_xattr_block_get(struct inode *inode,
struct ocfs2_xattr_block *xb;
struct ocfs2_xattr_value_root *xv;
size_t size;
- int ret = -ENODATA, name_offset, name_len, block_off, i;
+ int ret = -ENODATA, name_offset, name_len, i;
+ int uninitialized_var(block_off);
xs->bucket = ocfs2_xattr_bucket_new(inode);
if (!xs->bucket) {