diff options
| -rw-r--r-- | fs/ufs/inode.c | 50 |
1 files changed, 22 insertions, 28 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index c2544d62adf2..34d8dac4fe8b 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -1069,7 +1069,7 @@ next1: } -static void ufs_trunc_indirect(struct inode *inode, unsigned from, void *p) +static void ufs_trunc_indirect(struct inode *inode, unsigned *offsets, void *p) { struct super_block *sb = inode->i_sb; struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; @@ -1077,7 +1077,8 @@ static void ufs_trunc_indirect(struct inode *inode, unsigned from, void *p) void *ind; u64 tmp, frag_to_free = 0; unsigned free_count = 0; - bool to_free = !from; + unsigned from = offsets ? *offsets : 0; + bool to_free = !offsets || !from; unsigned i; tmp = ufs_data_ptr_to_cpu(sb, p); @@ -1134,16 +1135,15 @@ static void ufs_trunc_indirect(struct inode *inode, unsigned from, void *p) ubh_brelse (ind_ubh); } -static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p) +static void ufs_trunc_dindirect(struct inode *inode, unsigned *offsets, void *p) { struct super_block *sb = inode->i_sb; struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; struct ufs_buffer_head *dind_bh; u64 tmp; void *dind; - bool free_it = !offset; - unsigned dindirect_block = offset >> uspi->s_apbshift; - unsigned from = offset & uspi->s_apbmask; + bool free_it = !offsets || !(offsets[0] || offsets[1]); + unsigned dindirect_block = offsets ? *offsets++ : 0; unsigned i; tmp = ufs_data_ptr_to_cpu(sb, p); @@ -1157,12 +1157,12 @@ static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p) return; } - for (i = dindirect_block ; i < uspi->s_apb ; i++, from = 0) { + for (i = dindirect_block ; i < uspi->s_apb ; i++, offsets = NULL) { dind = ubh_get_data_ptr(uspi, dind_bh, i); tmp = ufs_data_ptr_to_cpu(sb, dind); if (!tmp) continue; - ufs_trunc_indirect(inode, from, dind); + ufs_trunc_indirect(inode, offsets, dind); ubh_mark_buffer_dirty(dind_bh); } @@ -1182,7 +1182,7 @@ static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p) ubh_brelse (dind_bh); } -static void ufs_trunc_tindirect(struct inode *inode, u64 offset) +static void ufs_trunc_tindirect(struct inode *inode, unsigned *offsets) { struct super_block *sb = inode->i_sb; struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; @@ -1190,12 +1190,10 @@ static void ufs_trunc_tindirect(struct inode *inode, u64 offset) struct ufs_buffer_head * tind_bh; u64 tmp; void *tind, *p; - bool free_it = !offset; - unsigned tindirect_block = offset >> uspi->s_2apbshift; + bool free_it = !offsets || !(offsets[0] || offsets[1] || offsets[2]); + unsigned tindirect_block = offsets ? *offsets++ : 0; unsigned i; - offset -= tindirect_block << uspi->s_2apbshift; - p = ufs_get_direct_data_ptr(uspi, ufsi, UFS_TIND_BLOCK); if (!(tmp = ufs_data_ptr_to_cpu(sb, p))) return; @@ -1207,9 +1205,9 @@ static void ufs_trunc_tindirect(struct inode *inode, u64 offset) return; } - for (i = tindirect_block ; i < uspi->s_apb ; i++, offset = 0) { + for (i = tindirect_block ; i < uspi->s_apb ; i++, offsets = NULL) { tind = ubh_get_data_ptr(uspi, tind_bh, i); - ufs_trunc_dindirect(inode, offset, tind); + ufs_trunc_dindirect(inode, offsets, tind); ubh_mark_buffer_dirty(tind_bh); } if (free_it) { @@ -1310,30 +1308,26 @@ static void __ufs_truncate_blocks(struct inode *inode) switch (depth) { case 1: ufs_trunc_direct(inode); - ufs_trunc_indirect(inode, 0, + ufs_trunc_indirect(inode, NULL, ufs_get_direct_data_ptr(uspi, ufsi, UFS_IND_BLOCK)); - ufs_trunc_dindirect(inode, 0, + ufs_trunc_dindirect(inode, NULL, ufs_get_direct_data_ptr(uspi, ufsi, UFS_DIND_BLOCK)); - ufs_trunc_tindirect(inode, 0); + ufs_trunc_tindirect(inode, NULL); break; case 2: - ufs_trunc_indirect(inode, offsets[1], + ufs_trunc_indirect(inode, offsets + 1, ufs_get_direct_data_ptr(uspi, ufsi, UFS_IND_BLOCK)); - ufs_trunc_dindirect(inode, 0, + ufs_trunc_dindirect(inode, NULL, ufs_get_direct_data_ptr(uspi, ufsi, UFS_DIND_BLOCK)); - ufs_trunc_tindirect(inode, 0); + ufs_trunc_tindirect(inode, NULL); break; case 3: - ufs_trunc_dindirect(inode, - (offsets[1] << uspi->s_apbshift) + offsets[2], + ufs_trunc_dindirect(inode, offsets + 1, ufs_get_direct_data_ptr(uspi, ufsi, UFS_DIND_BLOCK)); - ufs_trunc_tindirect(inode, 0); + ufs_trunc_tindirect(inode, NULL); break; case 4: - ufs_trunc_tindirect(inode, - (offsets[1] << uspi->s_2apbshift) + - (offsets[2] << uspi->s_apbshift) + - offsets[3]); + ufs_trunc_tindirect(inode, offsets + 1); } ufsi->i_lastfrag = DIRECT_FRAGMENT; mutex_unlock(&ufsi->truncate_mutex); |