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Restore hardlink count.

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The hardlink count of files was previously hard coded to 1. We want to
properly restore hard linked files because it saves space and time.

The test binary restore_copy exposed this missed case before and is updated
to make use of it.

Signed-off-by: Auke Kok <auke.kok@versity.com>
This commit is contained in:
Auke Kok
2025-01-16 11:34:26 -08:00
parent a2eb157a1f
commit e4f5fc4682
4 changed files with 5 additions and 3 deletions
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4
tests/golden/restore_copy
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@@ -35,10 +35,10 @@ srwxr-xr-x. 1 0 0 0 s
prw-r--r--. 1 0 0 0 p
-rwsrwsrwx. 1 0 0 0 mode_t
lrwxrwxrwx. 1 0 0 7 l -> broken
-rw-r--r--. 1 0 0 0 h
-rw-r--r--. 2 0 0 0 h
-rw-r--r--. 1 0 0 131072 falloc
-rw-r--r--. 1 0 0 4096 f4096
-rw-r--r--. 1 0 0 0 f
-rw-r--r--. 2 0 0 0 f
drwxr-xr-x. 2 0 0 0 d
crw-r--r--. 1 0 0 0, 0 c
brw-r--r--. 1 0 0 1, 1 b

1
tests/src/restore_copy.c
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@@ -349,6 +349,7 @@ static struct scoutfs_parallel_restore_inode *read_inode_data(char *path, u64 in
inode->ctime = st.st_ctim;
inode->mtime = st.st_mtim;
inode->size = st.st_size;
inode->nlink = st.st_nlink;
inode->rdev = st.st_rdev;

2
utils/src/parallel_restore.c
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@@ -813,7 +813,7 @@ static spr_err_t insert_inode_items(struct scoutfs_parallel_restore_writer *wri,
si->next_readdir_pos = 0;
si->next_xattr_id = cpu_to_le64(inode->nr_xattrs + 1);
si->version = cpu_to_le64(1);
si->nlink = cpu_to_le32(1);
si->nlink = cpu_to_le32(inode->nlink ? inode->nlink : 1);
si->uid = cpu_to_le32(inode->uid);
si->gid = cpu_to_le32(inode->gid);
si->mode = cpu_to_le32(inode->mode);

1
utils/src/parallel_restore.h
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@@ -58,6 +58,7 @@ struct scoutfs_parallel_restore_inode {
u64 data_version;
u64 size;
bool offline;
u32 nlink;
/* only used for directories */
u64 nr_subdirs;