Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

linux: zfs: ctldir: set [amc]time to snapshot's creation property #15117

Merged
merged 1 commit into from
Aug 1, 2023
Merged

linux: zfs: ctldir: set [amc]time to snapshot's creation property #15117

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
26 changes: 21 additions & 5 deletions module/os/linux/zfs/zfs_ctldir.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -478,17 +478,19 @@ zfsctl_is_snapdir(struct inode *ip)
*/
static struct inode *
zfsctl_inode_alloc(zfsvfs_t *zfsvfs, uint64_t id,
const struct file_operations *fops, const struct inode_operations *ops)
const struct file_operations *fops, const struct inode_operations *ops,
uint64_t creation)
{
inode_timespec_t now;
struct inode *ip;
znode_t *zp;
inode_timespec_t now = {.tv_sec = creation};

ip = new_inode(zfsvfs->z_sb);
if (ip == NULL)
return (NULL);

now = current_time(ip);
if (!creation)
now = current_time(ip);
zp = ITOZ(ip);
ASSERT3P(zp->z_dirlocks, ==, NULL);
ASSERT3P(zp->z_acl_cached, ==, NULL);
Expand Down Expand Up @@ -552,14 +554,28 @@ zfsctl_inode_lookup(zfsvfs_t *zfsvfs, uint64_t id,
const struct file_operations *fops, const struct inode_operations *ops)
{
struct inode *ip = NULL;
uint64_t creation = 0;
dsl_dataset_t *snap_ds;
dsl_pool_t *pool;

while (ip == NULL) {
ip = ilookup(zfsvfs->z_sb, (unsigned long)id);
if (ip)
break;

if (id <= ZFSCTL_INO_SNAPDIRS && !creation) {
pool = dmu_objset_pool(zfsvfs->z_os);
dsl_pool_config_enter(pool, FTAG);
if (!dsl_dataset_hold_obj(pool,
ZFSCTL_INO_SNAPDIRS - id, FTAG, &snap_ds)) {
creation = dsl_get_creation(snap_ds);
dsl_dataset_rele(snap_ds, FTAG);
}
dsl_pool_config_exit(pool, FTAG);
}

/* May fail due to concurrent zfsctl_inode_alloc() */
ip = zfsctl_inode_alloc(zfsvfs, id, fops, ops);
ip = zfsctl_inode_alloc(zfsvfs, id, fops, ops, creation);
}

return (ip);
Expand All @@ -581,7 +597,7 @@ zfsctl_create(zfsvfs_t *zfsvfs)
ASSERT(zfsvfs->z_ctldir == NULL);

zfsvfs->z_ctldir = zfsctl_inode_alloc(zfsvfs, ZFSCTL_INO_ROOT,
&zpl_fops_root, &zpl_ops_root);
&zpl_fops_root, &zpl_ops_root, 0);
if (zfsvfs->z_ctldir == NULL)
return (SET_ERROR(ENOENT));

Expand Down
Loading