diff options
Diffstat (limited to 'fs/ufs')
| -rw-r--r-- | fs/ufs/inode.c | 100 |
1 files changed, 51 insertions, 49 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index 314caad56d83..efe71e5acb00 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -1070,57 +1070,48 @@ next1: UFSD("EXIT: ino %lu\n", inode->i_ino); } -static void free_full_branch(struct inode *inode, int depth, void *p) +static void free_full_branch(struct inode *inode, u64 ind_block, int depth) { 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 *ubh; - u64 tmp; + struct ufs_buffer_head *ubh = ubh_bread(sb, ind_block, uspi->s_bsize); unsigned i; - tmp = ufs_data_ptr_to_cpu(sb, p); - if (!tmp) - return; - ubh = ubh_bread (sb, tmp, uspi->s_bsize); - if (!ubh) { - write_seqlock(&ufsi->meta_lock); - ufs_data_ptr_clear(uspi, p); - write_sequnlock(&ufsi->meta_lock); + if (!ubh) return; - } if (--depth) { - for (i = 0 ; i < uspi->s_apb ; i++) { - void *ind = ubh_get_data_ptr(uspi, ubh, i); - free_full_branch(inode, depth, ind); - ubh_mark_buffer_dirty(ubh); + for (i = 0; i < uspi->s_apb; i++) { + void *p = ubh_get_data_ptr(uspi, ubh, i); + u64 block = ufs_data_ptr_to_cpu(sb, p); + if (block) { + write_seqlock(&UFS_I(inode)->meta_lock); + ufs_data_ptr_clear(uspi, p); + write_sequnlock(&UFS_I(inode)->meta_lock); + free_full_branch(inode, block, depth); + ubh_mark_buffer_dirty(ubh); + } } } else { struct to_free ctx = {.inode = inode}; for (i = 0; i < uspi->s_apb; i++) { - void *ind = ubh_get_data_ptr(uspi, ubh, i); - tmp = ufs_data_ptr_to_cpu(sb, ind); - if (!tmp) - continue; - - write_seqlock(&UFS_I(inode)->meta_lock); - ufs_data_ptr_clear(uspi, ind); - write_sequnlock(&UFS_I(inode)->meta_lock); - ubh_mark_buffer_dirty(ubh); - free_data(&ctx, tmp, uspi->s_fpb); - mark_inode_dirty(inode); + void *p = ubh_get_data_ptr(uspi, ubh, i); + u64 block = ufs_data_ptr_to_cpu(sb, p); + if (block) { + write_seqlock(&UFS_I(inode)->meta_lock); + ufs_data_ptr_clear(uspi, p); + write_sequnlock(&UFS_I(inode)->meta_lock); + ubh_mark_buffer_dirty(ubh); + free_data(&ctx, block, uspi->s_fpb); + mark_inode_dirty(inode); + } } free_data(&ctx, 0, 0); } - tmp = ufs_data_ptr_to_cpu(sb, p); - write_seqlock(&ufsi->meta_lock); - ufs_data_ptr_clear(uspi, p); - write_sequnlock(&ufsi->meta_lock); ubh_bforget(ubh); - ufs_free_blocks(inode, tmp, uspi->s_fpb); + ufs_free_blocks(inode, ind_block, uspi->s_fpb); mark_inode_dirty(inode); } @@ -1132,25 +1123,30 @@ static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buff if (--depth) { for (i = from; i < uspi->s_apb ; i++) { - void *ind = ubh_get_data_ptr(uspi, ubh, i); - free_full_branch(inode, depth, ind); - ubh_mark_buffer_dirty(ubh); + void *p = ubh_get_data_ptr(uspi, ubh, i); + u64 block = ufs_data_ptr_to_cpu(sb, p); + if (block) { + write_seqlock(&UFS_I(inode)->meta_lock); + ufs_data_ptr_clear(uspi, p); + write_sequnlock(&UFS_I(inode)->meta_lock); + ubh_mark_buffer_dirty(ubh); + free_full_branch(inode, block, depth); + } } } else { struct to_free ctx = {.inode = inode}; for (i = from; i < uspi->s_apb; i++) { - void *ind = ubh_get_data_ptr(uspi, ubh, i); - u64 tmp = ufs_data_ptr_to_cpu(sb, ind); - if (!tmp) - continue; - - write_seqlock(&UFS_I(inode)->meta_lock); - ufs_data_ptr_clear(uspi, ind); - write_sequnlock(&UFS_I(inode)->meta_lock); - ubh_mark_buffer_dirty(ubh); - free_data(&ctx, tmp, uspi->s_fpb); - mark_inode_dirty(inode); + void *p = ubh_get_data_ptr(uspi, ubh, i); + u64 block = ufs_data_ptr_to_cpu(sb, p); + if (block) { + write_seqlock(&UFS_I(inode)->meta_lock); + ufs_data_ptr_clear(uspi, p); + write_sequnlock(&UFS_I(inode)->meta_lock); + ubh_mark_buffer_dirty(ubh); + free_data(&ctx, block, uspi->s_fpb); + mark_inode_dirty(inode); + } } free_data(&ctx, 0, 0); } @@ -1277,8 +1273,14 @@ static void __ufs_truncate_blocks(struct inode *inode) } } for (i = offsets[0]; i <= UFS_TIND_BLOCK; i++) { - free_full_branch(inode, i - UFS_IND_BLOCK + 1, - ufs_get_direct_data_ptr(uspi, ufsi, i)); + p = ufs_get_direct_data_ptr(uspi, ufsi, i); + block = ufs_data_ptr_to_cpu(sb, p); + if (block) { + write_seqlock(&ufsi->meta_lock); + ufs_data_ptr_clear(uspi, p); + write_sequnlock(&ufsi->meta_lock); + free_full_branch(inode, block, i - UFS_IND_BLOCK + 1); + } } ufsi->i_lastfrag = DIRECT_FRAGMENT; mutex_unlock(&ufsi->truncate_mutex); |