static int ocfs2_file_release(struct inode *inode, struct file *file)
{
struct ocfs2_inode_info *oi = OCFS2_I(inode);
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
mlog_entry("(0x%p, 0x%p, '%.*s')\n", inode, file,
file->f_path.dentry->d_name.len,
oi->ip_flags &= ~OCFS2_INODE_OPEN_DIRECT;
spin_unlock(&oi->ip_lock);
-#if 0
- /*
- * Disable this for now. Keeping the reservation around a bit
- * longer gives an improvement for workloads which rapidly do
- * open()/write()/close() against a file.
- */
- if ((file->f_mode & FMODE_WRITE) &&
- (atomic_read(&inode->i_writecount) == 1)) {
- down_write(&oi->ip_alloc_sem);
- ocfs2_resv_discard(&osb->osb_la_resmap,
- &oi->ip_la_data_resv);
- up_write(&oi->ip_alloc_sem);
- }
-#endif
-
ocfs2_free_file_private(inode, file);
mlog_exit(0);
return 0;
}
-static int ocfs2_sync_file(struct file *file,
- struct dentry *dentry,
- int datasync)
+static int ocfs2_sync_file(struct file *file, int datasync)
{
int err = 0;
journal_t *journal;
- struct inode *inode = dentry->d_inode;
+ struct dentry *dentry = file->f_path.dentry;
+ struct inode *inode = file->f_mapping->host;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", file, dentry, datasync,
inode->i_atime = CURRENT_TIME;
di->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
di->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
-
- ret = ocfs2_journal_dirty(handle, bh);
- if (ret < 0)
- mlog_errno(ret);
+ ocfs2_journal_dirty(handle, bh);
out_commit:
ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
di->i_ctime = di->i_mtime = cpu_to_le64(inode->i_ctime.tv_sec);
di->i_ctime_nsec = di->i_mtime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
- status = ocfs2_journal_dirty(handle, fe_bh);
- if (status < 0)
- mlog_errno(status);
+ ocfs2_journal_dirty(handle, fe_bh);
out_commit:
ocfs2_commit_trans(osb, handle);
int status = 0;
struct ocfs2_dinode *fe = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct ocfs2_truncate_context *tc = NULL;
mlog_entry("(inode = %llu, new_i_size = %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
goto bail_unlock_sem;
}
- status = ocfs2_prepare_truncate(osb, inode, di_bh, &tc);
- if (status < 0) {
- mlog_errno(status);
- goto bail_unlock_sem;
- }
-
- status = ocfs2_commit_truncate(osb, inode, di_bh, tc);
+ status = ocfs2_commit_truncate(osb, inode, di_bh);
if (status < 0) {
mlog_errno(status);
goto bail_unlock_sem;
goto leave;
}
- status = ocfs2_journal_dirty(handle, bh);
- if (status < 0) {
- mlog_errno(status);
- goto leave;
- }
+ ocfs2_journal_dirty(handle, bh);
spin_lock(&OCFS2_I(inode)->ip_lock);
clusters_to_add -= (OCFS2_I(inode)->ip_clusters - prev_clusters);
struct ocfs2_super *osb = OCFS2_SB(sb);
struct buffer_head *bh = NULL;
handle_t *handle = NULL;
- int qtype;
- struct dquot *transfer_from[MAXQUOTAS] = { };
struct dquot *transfer_to[MAXQUOTAS] = { };
+ int qtype;
mlog_entry("(0x%p, '%.*s')\n", dentry,
dentry->d_name.len, dentry->d_name.name);
if (status)
return status;
+ if (is_quota_modification(inode, attr))
+ dquot_initialize(inode);
size_change = S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_SIZE;
if (size_change) {
- dquot_initialize(inode);
-
status = ocfs2_rw_lock(inode, 1);
if (status < 0) {
mlog_errno(status);
OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
transfer_to[USRQUOTA] = dqget(sb, attr->ia_uid,
USRQUOTA);
- transfer_from[USRQUOTA] = dqget(sb, inode->i_uid,
- USRQUOTA);
- if (!transfer_to[USRQUOTA] || !transfer_from[USRQUOTA]) {
+ if (!transfer_to[USRQUOTA]) {
status = -ESRCH;
goto bail_unlock;
}
OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
transfer_to[GRPQUOTA] = dqget(sb, attr->ia_gid,
GRPQUOTA);
- transfer_from[GRPQUOTA] = dqget(sb, inode->i_gid,
- GRPQUOTA);
- if (!transfer_to[GRPQUOTA] || !transfer_from[GRPQUOTA]) {
+ if (!transfer_to[GRPQUOTA]) {
status = -ESRCH;
goto bail_unlock;
}
mlog_errno(status);
goto bail_unlock;
}
- status = dquot_transfer(inode, attr);
+ status = __dquot_transfer(inode, transfer_to);
if (status < 0)
goto bail_commit;
} else {
}
/*
- * This will intentionally not wind up calling vmtruncate(),
+ * This will intentionally not wind up calling simple_setsize(),
* since all the work for a size change has been done above.
* Otherwise, we could get into problems with truncate as
* ip_alloc_sem is used there to protect against i_size
brelse(bh);
/* Release quota pointers in case we acquired them */
- for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++)
dqput(transfer_to[qtype]);
- dqput(transfer_from[qtype]);
- }
if (!status && attr->ia_valid & ATTR_MODE) {
status = ocfs2_acl_chmod(inode);
di = (struct ocfs2_dinode *) bh->b_data;
di->i_mode = cpu_to_le16(inode->i_mode);
- ret = ocfs2_journal_dirty(handle, bh);
- if (ret < 0)
- mlog_errno(ret);
+ ocfs2_journal_dirty(handle, bh);
out_trans:
ocfs2_commit_trans(osb, handle);
return ret;
}
+static int ocfs2_find_rec(struct ocfs2_extent_list *el, u32 pos)
+{
+ int i;
+ struct ocfs2_extent_rec *rec = NULL;
+
+ for (i = le16_to_cpu(el->l_next_free_rec) - 1; i >= 0; i--) {
+
+ rec = &el->l_recs[i];
+
+ if (le32_to_cpu(rec->e_cpos) < pos)
+ break;
+ }
+
+ return i;
+}
+
+/*
+ * Helper to calculate the punching pos and length in one run, we handle the
+ * following three cases in order:
+ *
+ * - remove the entire record
+ * - remove a partial record
+ * - no record needs to be removed (hole-punching completed)
+*/
+static void ocfs2_calc_trunc_pos(struct inode *inode,
+ struct ocfs2_extent_list *el,
+ struct ocfs2_extent_rec *rec,
+ u32 trunc_start, u32 *trunc_cpos,
+ u32 *trunc_len, u32 *trunc_end,
+ u64 *blkno, int *done)
+{
+ int ret = 0;
+ u32 coff, range;
+
+ range = le32_to_cpu(rec->e_cpos) + ocfs2_rec_clusters(el, rec);
+
+ if (le32_to_cpu(rec->e_cpos) >= trunc_start) {
+ *trunc_cpos = le32_to_cpu(rec->e_cpos);
+ /*
+ * Skip holes if any.
+ */
+ if (range < *trunc_end)
+ *trunc_end = range;
+ *trunc_len = *trunc_end - le32_to_cpu(rec->e_cpos);
+ *blkno = le64_to_cpu(rec->e_blkno);
+ *trunc_end = le32_to_cpu(rec->e_cpos);
+ } else if (range > trunc_start) {
+ *trunc_cpos = trunc_start;
+ *trunc_len = *trunc_end - trunc_start;
+ coff = trunc_start - le32_to_cpu(rec->e_cpos);
+ *blkno = le64_to_cpu(rec->e_blkno) +
+ ocfs2_clusters_to_blocks(inode->i_sb, coff);
+ *trunc_end = trunc_start;
+ } else {
+ /*
+ * It may have two following possibilities:
+ *
+ * - last record has been removed
+ * - trunc_start was within a hole
+ *
+ * both two cases mean the completion of hole punching.
+ */
+ ret = 1;
+ }
+
+ *done = ret;
+}
+
static int ocfs2_remove_inode_range(struct inode *inode,
struct buffer_head *di_bh, u64 byte_start,
u64 byte_len)
{
- int ret = 0;
- u32 trunc_start, trunc_len, cpos, phys_cpos, alloc_size;
+ int ret = 0, flags = 0, done = 0, i;
+ u32 trunc_start, trunc_len, trunc_end, trunc_cpos, phys_cpos;
+ u32 cluster_in_el;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_cached_dealloc_ctxt dealloc;
struct address_space *mapping = inode->i_mapping;
struct ocfs2_extent_tree et;
+ struct ocfs2_path *path = NULL;
+ struct ocfs2_extent_list *el = NULL;
+ struct ocfs2_extent_rec *rec = NULL;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
+ u64 blkno, refcount_loc = le64_to_cpu(di->i_refcount_loc);
ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), di_bh);
ocfs2_init_dealloc_ctxt(&dealloc);
goto out;
}
+ /*
+ * For reflinks, we may need to CoW 2 clusters which might be
+ * partially zero'd later, if hole's start and end offset were
+ * within one cluster(means is not exactly aligned to clustersize).
+ */
+
+ if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) {
+
+ ret = ocfs2_cow_file_pos(inode, di_bh, byte_start);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_cow_file_pos(inode, di_bh, byte_start + byte_len);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ }
+
trunc_start = ocfs2_clusters_for_bytes(osb->sb, byte_start);
- trunc_len = (byte_start + byte_len) >> osb->s_clustersize_bits;
- if (trunc_len >= trunc_start)
- trunc_len -= trunc_start;
- else
- trunc_len = 0;
+ trunc_end = (byte_start + byte_len) >> osb->s_clustersize_bits;
+ cluster_in_el = trunc_end;
- mlog(0, "Inode: %llu, start: %llu, len: %llu, cstart: %u, clen: %u\n",
+ mlog(0, "Inode: %llu, start: %llu, len: %llu, cstart: %u, cend: %u\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
(unsigned long long)byte_start,
- (unsigned long long)byte_len, trunc_start, trunc_len);
+ (unsigned long long)byte_len, trunc_start, trunc_end);
ret = ocfs2_zero_partial_clusters(inode, byte_start, byte_len);
if (ret) {
goto out;
}
- cpos = trunc_start;
- while (trunc_len) {
- ret = ocfs2_get_clusters(inode, cpos, &phys_cpos,
- &alloc_size, NULL);
+ path = ocfs2_new_path_from_et(&et);
+ if (!path) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out;
+ }
+
+ while (trunc_end > trunc_start) {
+
+ ret = ocfs2_find_path(INODE_CACHE(inode), path,
+ cluster_in_el);
if (ret) {
mlog_errno(ret);
goto out;
}
- if (alloc_size > trunc_len)
- alloc_size = trunc_len;
+ el = path_leaf_el(path);
- /* Only do work for non-holes */
- if (phys_cpos != 0) {
- ret = ocfs2_remove_btree_range(inode, &et, cpos,
- phys_cpos, alloc_size,
- &dealloc);
+ i = ocfs2_find_rec(el, trunc_end);
+ /*
+ * Need to go to previous extent block.
+ */
+ if (i < 0) {
+ if (path->p_tree_depth == 0)
+ break;
+
+ ret = ocfs2_find_cpos_for_left_leaf(inode->i_sb,
+ path,
+ &cluster_in_el);
if (ret) {
mlog_errno(ret);
goto out;
}
+
+ /*
+ * We've reached the leftmost extent block,
+ * it's safe to leave.
+ */
+ if (cluster_in_el == 0)
+ break;
+
+ /*
+ * The 'pos' searched for previous extent block is
+ * always one cluster less than actual trunc_end.
+ */
+ trunc_end = cluster_in_el + 1;
+
+ ocfs2_reinit_path(path, 1);
+
+ continue;
+
+ } else
+ rec = &el->l_recs[i];
+
+ ocfs2_calc_trunc_pos(inode, el, rec, trunc_start, &trunc_cpos,
+ &trunc_len, &trunc_end, &blkno, &done);
+ if (done)
+ break;
+
+ flags = rec->e_flags;
+ phys_cpos = ocfs2_blocks_to_clusters(inode->i_sb, blkno);
+
+ ret = ocfs2_remove_btree_range(inode, &et, trunc_cpos,
+ phys_cpos, trunc_len, flags,
+ &dealloc, refcount_loc);
+ if (ret < 0) {
+ mlog_errno(ret);
+ goto out;
}
- cpos += alloc_size;
- trunc_len -= alloc_size;
+ cluster_in_el = trunc_end;
+
+ ocfs2_reinit_path(path, 1);
}
ocfs2_truncate_cluster_pages(inode, byte_start, byte_len);
* direct write may have instantiated a few
* blocks outside i_size. Trim these off again.
* Don't need i_size_read because we hold i_mutex.
+ *
+ * XXX(hch): this looks buggy because ocfs2 did not
+ * actually implement ->truncate. Take a look at
+ * the new truncate sequence and update this accordingly
*/
if (*ppos + count > inode->i_size)
- vmtruncate(inode, inode->i_size);
+ simple_setsize(inode, inode->i_size);
ret = written;
goto out_dio;
}
projects / linux-flexiantxendom0-3.2.10.git / blobdiff