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Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r--fs/f2fs/file.c106
1 files changed, 54 insertions, 52 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 46e4960a9..2fbc8d89c 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -560,20 +560,14 @@ static int f2fs_file_open(struct inode *inode, struct file *filp)
void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
- struct f2fs_node *raw_node;
int nr_free = 0, ofs = dn->ofs_in_node, len = count;
__le32 *addr;
- int base = 0;
bool compressed_cluster = false;
int cluster_index = 0, valid_blocks = 0;
int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks);
- if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
- base = get_extra_isize(dn->inode);
-
- raw_node = F2FS_NODE(dn->node_page);
- addr = blkaddr_in_node(raw_node) + base + ofs;
+ addr = get_dnode_addr(dn->inode, dn->node_page) + ofs;
/* Assumption: truncateion starts with cluster */
for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
@@ -591,8 +585,7 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
if (blkaddr == NULL_ADDR)
continue;
- dn->data_blkaddr = NULL_ADDR;
- f2fs_set_data_blkaddr(dn);
+ f2fs_set_data_blkaddr(dn, NULL_ADDR);
if (__is_valid_data_blkaddr(blkaddr)) {
if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
@@ -602,9 +595,6 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
valid_blocks++;
}
- if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
- clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
-
f2fs_invalidate_blocks(sbi, blkaddr);
if (!released || blkaddr != COMPRESS_ADDR)
@@ -1497,8 +1487,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
}
f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
- dn->data_blkaddr = NEW_ADDR;
- f2fs_set_data_blkaddr(dn);
+ f2fs_set_data_blkaddr(dn, NEW_ADDR);
}
f2fs_update_read_extent_cache_range(dn, start, 0, index - start);
@@ -3449,8 +3438,7 @@ static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
if (blkaddr != NEW_ADDR)
continue;
- dn->data_blkaddr = NULL_ADDR;
- f2fs_set_data_blkaddr(dn);
+ f2fs_set_data_blkaddr(dn, NULL_ADDR);
}
f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false);
@@ -3474,7 +3462,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
int ret;
int writecount;
- if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
+ if (!f2fs_sb_has_compression(sbi))
return -EOPNOTSUPP;
if (!f2fs_compressed_file(inode))
@@ -3487,7 +3475,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
if (ret)
return ret;
- f2fs_balance_fs(F2FS_I_SB(inode), true);
+ f2fs_balance_fs(sbi, true);
inode_lock(inode);
@@ -3573,10 +3561,10 @@ out:
return ret;
}
-static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
+static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count,
+ unsigned int *reserved_blocks)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
- unsigned int reserved_blocks = 0;
int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
block_t blkaddr;
int i;
@@ -3599,41 +3587,53 @@ static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
blkcnt_t reserved;
int ret;
- for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
- blkaddr = f2fs_data_blkaddr(dn);
+ for (i = 0; i < cluster_size; i++) {
+ blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + i);
if (i == 0) {
- if (blkaddr == COMPRESS_ADDR)
- continue;
- dn->ofs_in_node += cluster_size;
- goto next;
+ if (blkaddr != COMPRESS_ADDR) {
+ dn->ofs_in_node += cluster_size;
+ goto next;
+ }
+ continue;
}
- if (__is_valid_data_blkaddr(blkaddr)) {
+ /*
+ * compressed cluster was not released due to it
+ * fails in release_compress_blocks(), so NEW_ADDR
+ * is a possible case.
+ */
+ if (blkaddr == NEW_ADDR ||
+ __is_valid_data_blkaddr(blkaddr)) {
compr_blocks++;
continue;
}
-
- dn->data_blkaddr = NEW_ADDR;
- f2fs_set_data_blkaddr(dn);
}
reserved = cluster_size - compr_blocks;
- ret = inc_valid_block_count(sbi, dn->inode, &reserved);
- if (ret)
+
+ /* for the case all blocks in cluster were reserved */
+ if (reserved == 1)
+ goto next;
+
+ ret = inc_valid_block_count(sbi, dn->inode, &reserved, false);
+ if (unlikely(ret))
return ret;
- if (reserved != cluster_size - compr_blocks)
- return -ENOSPC;
+ for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
+ if (f2fs_data_blkaddr(dn) == NULL_ADDR)
+ f2fs_set_data_blkaddr(dn, NEW_ADDR);
+ }
f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true);
- reserved_blocks += reserved;
+ *reserved_blocks += reserved;
next:
count -= cluster_size;
}
- return reserved_blocks;
+ return 0;
}
static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
@@ -3644,7 +3644,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
unsigned int reserved_blocks = 0;
int ret;
- if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
+ if (!f2fs_sb_has_compression(sbi))
return -EOPNOTSUPP;
if (!f2fs_compressed_file(inode))
@@ -3657,10 +3657,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
if (ret)
return ret;
- if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
- goto out;
-
- f2fs_balance_fs(F2FS_I_SB(inode), true);
+ f2fs_balance_fs(sbi, true);
inode_lock(inode);
@@ -3669,6 +3666,9 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
goto unlock_inode;
}
+ if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
+ goto unlock_inode;
+
f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_lock(inode->i_mapping);
@@ -3694,7 +3694,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
count = round_up(count, F2FS_I(inode)->i_cluster_size);
- ret = reserve_compress_blocks(&dn, count);
+ ret = reserve_compress_blocks(&dn, count, &reserved_blocks);
f2fs_put_dnode(&dn);
@@ -3702,23 +3702,21 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
break;
page_idx += count;
- reserved_blocks += ret;
}
filemap_invalidate_unlock(inode->i_mapping);
f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
- if (ret >= 0) {
+ if (!ret) {
clear_inode_flag(inode, FI_COMPRESS_RELEASED);
inode->i_ctime = current_time(inode);
f2fs_mark_inode_dirty_sync(inode, true);
}
unlock_inode:
inode_unlock(inode);
-out:
mnt_drop_write_file(filp);
- if (ret >= 0) {
+ if (!ret) {
ret = put_user(reserved_blocks, (u64 __user *)arg);
} else if (reserved_blocks &&
atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
@@ -3967,16 +3965,20 @@ static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg)
sizeof(option)))
return -EFAULT;
- if (!f2fs_compressed_file(inode) ||
- option.log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
- option.log_cluster_size > MAX_COMPRESS_LOG_SIZE ||
- option.algorithm >= COMPRESS_MAX)
+ if (option.log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
+ option.log_cluster_size > MAX_COMPRESS_LOG_SIZE ||
+ option.algorithm >= COMPRESS_MAX)
return -EINVAL;
file_start_write(filp);
inode_lock(inode);
f2fs_down_write(&F2FS_I(inode)->i_sem);
+ if (!f2fs_compressed_file(inode)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) {
ret = -EBUSY;
goto out;
@@ -4066,7 +4068,7 @@ static int f2fs_ioc_decompress_file(struct file *filp, unsigned long arg)
if (!f2fs_compressed_file(inode))
return -EINVAL;
- f2fs_balance_fs(F2FS_I_SB(inode), true);
+ f2fs_balance_fs(sbi, true);
file_start_write(filp);
inode_lock(inode);
@@ -4138,7 +4140,7 @@ static int f2fs_ioc_compress_file(struct file *filp, unsigned long arg)
if (!f2fs_compressed_file(inode))
return -EINVAL;
- f2fs_balance_fs(F2FS_I_SB(inode), true);
+ f2fs_balance_fs(sbi, true);
file_start_write(filp);
inode_lock(inode);