struct buffer_head *group_bh,
unsigned int bit_off,
unsigned int num_bits);
-static inline int ocfs2_block_group_clear_bits(handle_t *handle,
- struct inode *alloc_inode,
- struct ocfs2_group_desc *bg,
- struct buffer_head *group_bh,
- unsigned int bit_off,
- unsigned int num_bits);
-
static int ocfs2_relink_block_group(handle_t *handle,
struct inode *alloc_inode,
struct buffer_head *fe_bh,
}
brelse(ac->ac_bh);
ac->ac_bh = NULL;
+ ac->ac_resv = NULL;
}
void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac)
#define do_error(fmt, ...) \
do{ \
- if (clean_error) \
+ if (resize) \
mlog(ML_ERROR, fmt "\n", ##__VA_ARGS__); \
else \
ocfs2_error(sb, fmt, ##__VA_ARGS__); \
static int ocfs2_validate_gd_self(struct super_block *sb,
struct buffer_head *bh,
- int clean_error)
+ int resize)
{
struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
static int ocfs2_validate_gd_parent(struct super_block *sb,
struct ocfs2_dinode *di,
struct buffer_head *bh,
- int clean_error)
+ int resize)
{
unsigned int max_bits;
struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
return -EINVAL;
}
- if (le16_to_cpu(gd->bg_chain) >=
- le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) {
+ /* In resize, we may meet the case bg_chain == cl_next_free_rec. */
+ if ((le16_to_cpu(gd->bg_chain) >
+ le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) ||
+ ((le16_to_cpu(gd->bg_chain) ==
+ le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) && !resize)) {
do_error("Group descriptor #%llu has bad chain %u",
(unsigned long long)bh->b_blocknr,
le16_to_cpu(gd->bg_chain));
ocfs2_set_bit(0, (unsigned long *)bg->bg_bitmap);
bg->bg_free_bits_count = cpu_to_le16(le16_to_cpu(bg->bg_bits) - 1);
- status = ocfs2_journal_dirty(handle, bg_bh);
- if (status < 0)
- mlog_errno(status);
+ ocfs2_journal_dirty(handle, bg_bh);
/* There is no need to zero out or otherwise initialize the
* other blocks in a group - All valid FS metadata in a block
le32_add_cpu(&fe->id1.bitmap1.i_total, le16_to_cpu(bg->bg_bits));
le32_add_cpu(&fe->i_clusters, le16_to_cpu(cl->cl_cpg));
- status = ocfs2_journal_dirty(handle, bh);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
+ ocfs2_journal_dirty(handle, bh);
spin_lock(&OCFS2_I(alloc_inode)->ip_lock);
OCFS2_I(alloc_inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
}
le16_add_cpu(&bg->bg_free_bits_count, -num_bits);
-
while(num_bits--)
ocfs2_set_bit(bit_off++, bitmap);
- status = ocfs2_journal_dirty(handle,
- group_bh);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
+ ocfs2_journal_dirty(handle, group_bh);
bail:
mlog_exit(status);
}
prev_bg->bg_next_group = bg->bg_next_group;
-
- status = ocfs2_journal_dirty(handle, prev_bg_bh);
- if (status < 0) {
- mlog_errno(status);
- goto out_rollback;
- }
+ ocfs2_journal_dirty(handle, prev_bg_bh);
status = ocfs2_journal_access_gd(handle, INODE_CACHE(alloc_inode),
bg_bh, OCFS2_JOURNAL_ACCESS_WRITE);
}
bg->bg_next_group = fe->id2.i_chain.cl_recs[chain].c_blkno;
-
- status = ocfs2_journal_dirty(handle, bg_bh);
- if (status < 0) {
- mlog_errno(status);
- goto out_rollback;
- }
+ ocfs2_journal_dirty(handle, bg_bh);
status = ocfs2_journal_access_di(handle, INODE_CACHE(alloc_inode),
fe_bh, OCFS2_JOURNAL_ACCESS_WRITE);
}
fe->id2.i_chain.cl_recs[chain].c_blkno = bg->bg_blkno;
+ ocfs2_journal_dirty(handle, fe_bh);
- status = ocfs2_journal_dirty(handle, fe_bh);
- if (status < 0) {
- mlog_errno(status);
- goto out_rollback;
- }
-
- status = 0;
out_rollback:
if (status < 0) {
fe->id2.i_chain.cl_recs[chain].c_blkno = cpu_to_le64(fe_ptr);
tmp_used = le32_to_cpu(di->id1.bitmap1.i_used);
di->id1.bitmap1.i_used = cpu_to_le32(num_bits + tmp_used);
le32_add_cpu(&cl->cl_recs[chain].c_free, -num_bits);
-
- ret = ocfs2_journal_dirty(handle, di_bh);
- if (ret < 0)
- mlog_errno(ret);
+ ocfs2_journal_dirty(handle, di_bh);
out:
return ret;
tmp_used = le32_to_cpu(fe->id1.bitmap1.i_used);
fe->id1.bitmap1.i_used = cpu_to_le32(*num_bits + tmp_used);
le32_add_cpu(&cl->cl_recs[chain].c_free, -(*num_bits));
-
- status = ocfs2_journal_dirty(handle,
- ac->ac_bh);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
+ ocfs2_journal_dirty(handle, ac->ac_bh);
status = ocfs2_block_group_set_bits(handle,
alloc_inode,
bits_wanted, cluster_start, num_clusters);
}
-static inline int ocfs2_block_group_clear_bits(handle_t *handle,
- struct inode *alloc_inode,
- struct ocfs2_group_desc *bg,
- struct buffer_head *group_bh,
- unsigned int bit_off,
- unsigned int num_bits)
+static int ocfs2_block_group_clear_bits(handle_t *handle,
+ struct inode *alloc_inode,
+ struct ocfs2_group_desc *bg,
+ struct buffer_head *group_bh,
+ unsigned int bit_off,
+ unsigned int num_bits,
+ void (*undo_fn)(unsigned int bit,
+ unsigned long *bmap))
{
int status;
unsigned int tmp;
- int journal_type = OCFS2_JOURNAL_ACCESS_WRITE;
struct ocfs2_group_desc *undo_bg = NULL;
- int cluster_bitmap = 0;
mlog_entry_void();
mlog(0, "off = %u, num = %u\n", bit_off, num_bits);
- if (ocfs2_is_cluster_bitmap(alloc_inode))
- journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
-
+ BUG_ON(undo_fn && !ocfs2_is_cluster_bitmap(alloc_inode));
status = ocfs2_journal_access_gd(handle, INODE_CACHE(alloc_inode),
- group_bh, journal_type);
+ group_bh,
+ undo_fn ?
+ OCFS2_JOURNAL_ACCESS_UNDO :
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
}
- if (ocfs2_is_cluster_bitmap(alloc_inode))
- cluster_bitmap = 1;
-
- if (cluster_bitmap) {
+ if (undo_fn) {
jbd_lock_bh_state(group_bh);
undo_bg = (struct ocfs2_group_desc *)
bh2jh(group_bh)->b_committed_data;
while(tmp--) {
ocfs2_clear_bit((bit_off + tmp),
(unsigned long *) bg->bg_bitmap);
- if (cluster_bitmap)
- ocfs2_set_bit(bit_off + tmp,
- (unsigned long *) undo_bg->bg_bitmap);
+ if (undo_fn)
+ undo_fn(bit_off + tmp,
+ (unsigned long *) undo_bg->bg_bitmap);
}
le16_add_cpu(&bg->bg_free_bits_count, num_bits);
- if (cluster_bitmap)
+ if (undo_fn)
jbd_unlock_bh_state(group_bh);
- status = ocfs2_journal_dirty(handle, group_bh);
- if (status < 0)
- mlog_errno(status);
+ ocfs2_journal_dirty(handle, group_bh);
bail:
return status;
}
/*
* expects the suballoc inode to already be locked.
*/
-int ocfs2_free_suballoc_bits(handle_t *handle,
- struct inode *alloc_inode,
- struct buffer_head *alloc_bh,
- unsigned int start_bit,
- u64 bg_blkno,
- unsigned int count)
+static int _ocfs2_free_suballoc_bits(handle_t *handle,
+ struct inode *alloc_inode,
+ struct buffer_head *alloc_bh,
+ unsigned int start_bit,
+ u64 bg_blkno,
+ unsigned int count,
+ void (*undo_fn)(unsigned int bit,
+ unsigned long *bitmap))
{
int status = 0;
u32 tmp_used;
status = ocfs2_block_group_clear_bits(handle, alloc_inode,
group, group_bh,
- start_bit, count);
+ start_bit, count, undo_fn);
if (status < 0) {
mlog_errno(status);
goto bail;
count);
tmp_used = le32_to_cpu(fe->id1.bitmap1.i_used);
fe->id1.bitmap1.i_used = cpu_to_le32(tmp_used - count);
-
- status = ocfs2_journal_dirty(handle, alloc_bh);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
+ ocfs2_journal_dirty(handle, alloc_bh);
bail:
brelse(group_bh);
return status;
}
+int ocfs2_free_suballoc_bits(handle_t *handle,
+ struct inode *alloc_inode,
+ struct buffer_head *alloc_bh,
+ unsigned int start_bit,
+ u64 bg_blkno,
+ unsigned int count)
+{
+ return _ocfs2_free_suballoc_bits(handle, alloc_inode, alloc_bh,
+ start_bit, bg_blkno, count, NULL);
+}
+
int ocfs2_free_dinode(handle_t *handle,
struct inode *inode_alloc_inode,
struct buffer_head *inode_alloc_bh,
inode_alloc_bh, bit, bg_blkno, 1);
}
-int ocfs2_free_clusters(handle_t *handle,
- struct inode *bitmap_inode,
- struct buffer_head *bitmap_bh,
- u64 start_blk,
- unsigned int num_clusters)
+static int _ocfs2_free_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters,
+ void (*undo_fn)(unsigned int bit,
+ unsigned long *bitmap))
{
int status;
u16 bg_start_bit;
mlog(0, "bg_blkno = %llu, bg_start_bit = %u\n",
(unsigned long long)bg_blkno, bg_start_bit);
- status = ocfs2_free_suballoc_bits(handle, bitmap_inode, bitmap_bh,
- bg_start_bit, bg_blkno,
- num_clusters);
+ status = _ocfs2_free_suballoc_bits(handle, bitmap_inode, bitmap_bh,
+ bg_start_bit, bg_blkno,
+ num_clusters, undo_fn);
if (status < 0) {
mlog_errno(status);
goto out;
return status;
}
+int ocfs2_free_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters)
+{
+ return _ocfs2_free_clusters(handle, bitmap_inode, bitmap_bh,
+ start_blk, num_clusters,
+ _ocfs2_set_bit);
+}
+
+/*
+ * Give never-used clusters back to the global bitmap. We don't need
+ * to protect these bits in the undo buffer.
+ */
+int ocfs2_release_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters)
+{
+ return _ocfs2_free_clusters(handle, bitmap_inode, bitmap_bh,
+ start_blk, num_clusters,
+ _ocfs2_clear_bit);
+}
+
static inline void ocfs2_debug_bg(struct ocfs2_group_desc *bg)
{
printk("Block Group:\n");
projects / karo-tx-linux.git / blobdiff