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free_full_branch(): saner calling conventions

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Have caller fetch the block number *and* remove it from wherever
it was.  Pass the block number instead.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-06-18 20:07:08 -04:00
parent 7b4e4f7f81
commit 163073db51
1 changed files with 51 additions and 49 deletions
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100
fs/ufs/inode.c
View file

@ -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)
if (!ubh)
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);
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);