mirror of
https://github.com/torvalds/linux.git
synced 2024-09-21 07:23:06 +00:00
ufs_trunc_indirect(): pass the index of the first pointer to free
... instead of file offset. Same cleanups as in the tindirect conversion in previous commit. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
parent
18ca51d821
commit
6ac36b8777
|
@ -1069,25 +1069,16 @@ next1:
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void ufs_trunc_indirect(struct inode *inode, u64 offset, void *p)
|
static void ufs_trunc_indirect(struct inode *inode, unsigned from, void *p)
|
||||||
{
|
{
|
||||||
struct super_block * sb;
|
struct super_block *sb = inode->i_sb;
|
||||||
struct ufs_sb_private_info * uspi;
|
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
|
||||||
struct ufs_buffer_head * ind_ubh;
|
struct ufs_buffer_head * ind_ubh;
|
||||||
void *ind;
|
void *ind;
|
||||||
u64 tmp, indirect_block, i, frag_to_free;
|
u64 tmp, frag_to_free = 0;
|
||||||
unsigned free_count;
|
unsigned free_count = 0;
|
||||||
|
bool to_free = !from;
|
||||||
UFSD("ENTER: ino %lu, offset %llu, p: %p\n",
|
unsigned i;
|
||||||
inode->i_ino, (unsigned long long)offset, p);
|
|
||||||
|
|
||||||
BUG_ON(!p);
|
|
||||||
|
|
||||||
sb = inode->i_sb;
|
|
||||||
uspi = UFS_SB(sb)->s_uspi;
|
|
||||||
|
|
||||||
frag_to_free = 0;
|
|
||||||
free_count = 0;
|
|
||||||
|
|
||||||
tmp = ufs_data_ptr_to_cpu(sb, p);
|
tmp = ufs_data_ptr_to_cpu(sb, p);
|
||||||
if (!tmp)
|
if (!tmp)
|
||||||
|
@ -1100,8 +1091,7 @@ static void ufs_trunc_indirect(struct inode *inode, u64 offset, void *p)
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
indirect_block = (DIRECT_BLOCK > offset) ? (DIRECT_BLOCK - offset) : 0;
|
for (i = from; i < uspi->s_apb; i++) {
|
||||||
for (i = indirect_block; i < uspi->s_apb; i++) {
|
|
||||||
ind = ubh_get_data_ptr(uspi, ind_ubh, i);
|
ind = ubh_get_data_ptr(uspi, ind_ubh, i);
|
||||||
tmp = ufs_data_ptr_to_cpu(sb, ind);
|
tmp = ufs_data_ptr_to_cpu(sb, ind);
|
||||||
if (!tmp)
|
if (!tmp)
|
||||||
|
@ -1128,11 +1118,7 @@ static void ufs_trunc_indirect(struct inode *inode, u64 offset, void *p)
|
||||||
if (free_count > 0) {
|
if (free_count > 0) {
|
||||||
ufs_free_blocks (inode, frag_to_free, free_count);
|
ufs_free_blocks (inode, frag_to_free, free_count);
|
||||||
}
|
}
|
||||||
for (i = 0; i < uspi->s_apb; i++)
|
if (to_free) {
|
||||||
if (!ufs_is_data_ptr_zero(uspi,
|
|
||||||
ubh_get_data_ptr(uspi, ind_ubh, i)))
|
|
||||||
break;
|
|
||||||
if (i >= uspi->s_apb) {
|
|
||||||
tmp = ufs_data_ptr_to_cpu(sb, p);
|
tmp = ufs_data_ptr_to_cpu(sb, p);
|
||||||
write_seqlock(&UFS_I(inode)->meta_lock);
|
write_seqlock(&UFS_I(inode)->meta_lock);
|
||||||
ufs_data_ptr_clear(uspi, p);
|
ufs_data_ptr_clear(uspi, p);
|
||||||
|
@ -1141,13 +1127,11 @@ static void ufs_trunc_indirect(struct inode *inode, u64 offset, void *p)
|
||||||
ubh_bforget(ind_ubh);
|
ubh_bforget(ind_ubh);
|
||||||
ufs_free_blocks (inode, tmp, uspi->s_fpb);
|
ufs_free_blocks (inode, tmp, uspi->s_fpb);
|
||||||
mark_inode_dirty(inode);
|
mark_inode_dirty(inode);
|
||||||
ind_ubh = NULL;
|
return;
|
||||||
}
|
}
|
||||||
if (IS_SYNC(inode) && ind_ubh && ubh_buffer_dirty(ind_ubh))
|
if (IS_SYNC(inode) && ubh_buffer_dirty(ind_ubh))
|
||||||
ubh_sync_block(ind_ubh);
|
ubh_sync_block(ind_ubh);
|
||||||
ubh_brelse (ind_ubh);
|
ubh_brelse (ind_ubh);
|
||||||
|
|
||||||
UFSD("EXIT: ino %lu\n", inode->i_ino);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p)
|
static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p)
|
||||||
|
@ -1157,14 +1141,20 @@ static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p)
|
||||||
struct ufs_buffer_head *dind_bh;
|
struct ufs_buffer_head *dind_bh;
|
||||||
u64 i, tmp, dindirect_block;
|
u64 i, tmp, dindirect_block;
|
||||||
void *dind;
|
void *dind;
|
||||||
|
unsigned from;
|
||||||
|
|
||||||
UFSD("ENTER: ino %lu\n", inode->i_ino);
|
UFSD("ENTER: ino %lu\n", inode->i_ino);
|
||||||
|
|
||||||
sb = inode->i_sb;
|
sb = inode->i_sb;
|
||||||
uspi = UFS_SB(sb)->s_uspi;
|
uspi = UFS_SB(sb)->s_uspi;
|
||||||
|
|
||||||
dindirect_block = (DIRECT_BLOCK > offset)
|
if (DIRECT_BLOCK <= offset) {
|
||||||
? ((DIRECT_BLOCK - offset) >> uspi->s_apbshift) : 0;
|
dindirect_block = 0;
|
||||||
|
from = 0;
|
||||||
|
} else {
|
||||||
|
dindirect_block = (DIRECT_BLOCK - offset) >> uspi->s_apbshift;
|
||||||
|
from = (DIRECT_BLOCK - offset) & uspi->s_apbmask;
|
||||||
|
}
|
||||||
|
|
||||||
tmp = ufs_data_ptr_to_cpu(sb, p);
|
tmp = ufs_data_ptr_to_cpu(sb, p);
|
||||||
if (!tmp)
|
if (!tmp)
|
||||||
|
@ -1177,12 +1167,12 @@ static void ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p)
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (i = dindirect_block ; i < uspi->s_apb ; i++) {
|
for (i = dindirect_block ; i < uspi->s_apb ; i++, from = 0) {
|
||||||
dind = ubh_get_data_ptr(uspi, dind_bh, i);
|
dind = ubh_get_data_ptr(uspi, dind_bh, i);
|
||||||
tmp = ufs_data_ptr_to_cpu(sb, dind);
|
tmp = ufs_data_ptr_to_cpu(sb, dind);
|
||||||
if (!tmp)
|
if (!tmp)
|
||||||
continue;
|
continue;
|
||||||
ufs_trunc_indirect (inode, offset + (i << uspi->s_apbshift), dind);
|
ufs_trunc_indirect(inode, from, dind);
|
||||||
ubh_mark_buffer_dirty(dind_bh);
|
ubh_mark_buffer_dirty(dind_bh);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -1328,7 +1318,7 @@ static void __ufs_truncate_blocks(struct inode *inode)
|
||||||
struct ufs_inode_info *ufsi = UFS_I(inode);
|
struct ufs_inode_info *ufsi = UFS_I(inode);
|
||||||
struct super_block *sb = inode->i_sb;
|
struct super_block *sb = inode->i_sb;
|
||||||
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
|
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
|
||||||
unsigned offsets[4];
|
unsigned offsets[4] = {0,};
|
||||||
int depth = ufs_block_to_path(inode, DIRECT_BLOCK, offsets);
|
int depth = ufs_block_to_path(inode, DIRECT_BLOCK, offsets);
|
||||||
|
|
||||||
mutex_lock(&ufsi->truncate_mutex);
|
mutex_lock(&ufsi->truncate_mutex);
|
||||||
|
@ -1336,7 +1326,7 @@ static void __ufs_truncate_blocks(struct inode *inode)
|
||||||
case 1:
|
case 1:
|
||||||
ufs_trunc_direct(inode);
|
ufs_trunc_direct(inode);
|
||||||
case 2:
|
case 2:
|
||||||
ufs_trunc_indirect(inode, UFS_IND_BLOCK,
|
ufs_trunc_indirect(inode, offsets[1],
|
||||||
ufs_get_direct_data_ptr(uspi, ufsi, UFS_IND_BLOCK));
|
ufs_get_direct_data_ptr(uspi, ufsi, UFS_IND_BLOCK));
|
||||||
case 3:
|
case 3:
|
||||||
ufs_trunc_dindirect(inode, UFS_IND_BLOCK + uspi->s_apb,
|
ufs_trunc_dindirect(inode, UFS_IND_BLOCK + uspi->s_apb,
|
||||||
|
|
Loading…
Reference in New Issue
Block a user