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authorAl Viro <viro@zeniv.linux.org.uk>2015-06-19 03:07:08 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2015-07-07 00:39:48 +0300
commit163073db51930d1f9c2960b8e5660c269164f29b (patch)
tree83b98778cea4a37dd189387518993e57fda412ee /fs/ufs/inode.c
parent7b4e4f7f815db0059150a12542b28c787e19c0d7 (diff)
downloadlinux-163073db51930d1f9c2960b8e5660c269164f29b.tar.xz
free_full_branch(): saner calling conventions
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>
Diffstat (limited to 'fs/ufs/inode.c')
-rw-r--r--fs/ufs/inode.c100
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);