diff options
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index e8a67b8ba90c..ae93f0bb9485 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1261,13 +1261,12 @@ static int ext4_journalled_write_end(struct file *file, } /* - * Reserve a single cluster located at lblock + * Reserve space for a single cluster */ -static int ext4_da_reserve_space(struct inode *inode, ext4_lblk_t lblock) +static int ext4_da_reserve_space(struct inode *inode) { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); struct ext4_inode_info *ei = EXT4_I(inode); - unsigned int md_needed; int ret; /* @@ -1279,25 +1278,14 @@ static int ext4_da_reserve_space(struct inode *inode, ext4_lblk_t lblock) if (ret) return ret; - /* - * recalculate the amount of metadata blocks to reserve - * in order to allocate nrblocks - * worse case is one extent per block - */ spin_lock(&ei->i_block_reservation_lock); - /* - * ext4_calc_metadata_amount() has side effects, which we have - * to be prepared undo if we fail to claim space. - */ - md_needed = 0; - trace_ext4_da_reserve_space(inode, 0); - if (ext4_claim_free_clusters(sbi, 1, 0)) { spin_unlock(&ei->i_block_reservation_lock); dquot_release_reservation_block(inode, EXT4_C2B(sbi, 1)); return -ENOSPC; } ei->i_reserved_data_blocks++; + trace_ext4_da_reserve_space(inode); spin_unlock(&ei->i_block_reservation_lock); return 0; /* success */ @@ -1566,9 +1554,9 @@ add_delayed: * then we don't need to reserve it again. However we still need * to reserve metadata for every block we're going to write. */ - if (EXT4_SB(inode->i_sb)->s_cluster_ratio <= 1 || + if (EXT4_SB(inode->i_sb)->s_cluster_ratio == 1 || !ext4_find_delalloc_cluster(inode, map->m_lblk)) { - ret = ext4_da_reserve_space(inode, iblock); + ret = ext4_da_reserve_space(inode); if (ret) { /* not enough space to reserve */ retval = ret; |