diff options
| -rw-r--r-- | fs/ufs/inode.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index afb0f32b921c..5b3f1c44d4b0 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -1208,19 +1208,17 @@ static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p) UFSD("EXIT: ino %lu\n", inode->i_ino); } -static void ufs_trunc_tindirect(struct inode *inode) +static void ufs_trunc_tindirect(struct inode *inode, u64 offset) { struct super_block *sb = inode->i_sb; struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; struct ufs_inode_info *ufsi = UFS_I(inode); struct ufs_buffer_head * tind_bh; - u64 tindirect_block, tmp, i; + u64 tmp; void *tind, *p; - - UFSD("ENTER: ino %lu\n", inode->i_ino); - - tindirect_block = (DIRECT_BLOCK > (UFS_NDADDR + uspi->s_apb + uspi->s_2apb)) - ? ((DIRECT_BLOCK - UFS_NDADDR - uspi->s_apb - uspi->s_2apb) >> uspi->s_2apbshift) : 0; + bool free_it = !offset; + unsigned tindirect_block = offset >> uspi->s_2apbshift; + unsigned i; p = ufs_get_direct_data_ptr(uspi, ufsi, UFS_TIND_BLOCK); if (!(tmp = ufs_data_ptr_to_cpu(sb, p))) @@ -1239,11 +1237,7 @@ static void ufs_trunc_tindirect(struct inode *inode) uspi->s_apb + ((i + 1) << uspi->s_2apbshift), tind); ubh_mark_buffer_dirty(tind_bh); } - for (i = 0; i < uspi->s_apb; i++) - if (!ufs_is_data_ptr_zero(uspi, - ubh_get_data_ptr(uspi, tind_bh, i))) - break; - if (i >= uspi->s_apb) { + if (free_it) { tmp = ufs_data_ptr_to_cpu(sb, p); write_seqlock(&ufsi->meta_lock); ufs_data_ptr_clear(uspi, p); @@ -1252,13 +1246,11 @@ static void ufs_trunc_tindirect(struct inode *inode) ubh_bforget(tind_bh); ufs_free_blocks(inode, tmp, uspi->s_fpb); mark_inode_dirty(inode); - tind_bh = NULL; + return; } - if (IS_SYNC(inode) && tind_bh && ubh_buffer_dirty(tind_bh)) + if (IS_SYNC(inode) && ubh_buffer_dirty(tind_bh)) ubh_sync_block(tind_bh); ubh_brelse (tind_bh); - - UFSD("EXIT: ino %lu\n", inode->i_ino); } static int ufs_alloc_lastblock(struct inode *inode, loff_t size) @@ -1349,8 +1341,10 @@ static void __ufs_truncate_blocks(struct inode *inode) case 3: ufs_trunc_dindirect(inode, UFS_IND_BLOCK + uspi->s_apb, ufs_get_direct_data_ptr(uspi, ufsi, UFS_DIND_BLOCK)); + ufs_trunc_tindirect(inode, 0); + break; case 4: - ufs_trunc_tindirect(inode); + ufs_trunc_tindirect(inode, DIRECT_BLOCK - UFS_NDADDR - uspi->s_apb - uspi->s_2apb); } ufsi->i_lastfrag = DIRECT_FRAGMENT; mutex_unlock(&ufsi->truncate_mutex); |