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free_full_branch(): don't bother modifying the block we are going to free 

Note that it's already made unreachable from the inode, so we don't have
to worry about ufs_frag_map() walking into something already freed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-06-18 20:14:02 -04:00
parent b6eede0ec6
commit cc7231e309
1 changed files with 2 additions and 12 deletions
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14
fs/ufs/inode.c
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@ -1081,13 +1081,8 @@ static void free_full_branch(struct inode *inode, u64 ind_block, int depth)
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);
if (block)
free_full_branch(inode, block, depth);
ubh_mark_buffer_dirty(ubh);
}
}
} else {
struct to_free ctx = {.inode = inode};
@ -1095,13 +1090,8 @@ static void free_full_branch(struct inode *inode, u64 ind_block, int depth)
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);
ubh_mark_buffer_dirty(ubh);
if (block)
free_data(&ctx, block, uspi->s_fpb);
}
}
free_data(&ctx, 0, 0);
}