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path: root/fs/overlayfs/readdir.c
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Diffstat (limited to 'fs/overlayfs/readdir.c')
-rw-r--r--fs/overlayfs/readdir.c48
1 files changed, 25 insertions, 23 deletions
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 150fdf3bc68d..78f62cc1797b 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -264,11 +264,11 @@ static int ovl_fill_merge(struct dir_context *ctx, const char *name,
return ovl_fill_lowest(rdd, name, namelen, offset, ino, d_type);
}
-static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
+static int ovl_check_whiteouts(struct path *path, struct ovl_readdir_data *rdd)
{
int err;
struct ovl_cache_entry *p;
- struct dentry *dentry;
+ struct dentry *dentry, *dir = path->dentry;
const struct cred *old_cred;
old_cred = ovl_override_creds(rdd->dentry->d_sb);
@@ -278,7 +278,7 @@ static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
while (rdd->first_maybe_whiteout) {
p = rdd->first_maybe_whiteout;
rdd->first_maybe_whiteout = p->next_maybe_whiteout;
- dentry = lookup_one_len(p->name, dir, p->len);
+ dentry = lookup_one(mnt_user_ns(path->mnt), p->name, dir, p->len);
if (!IS_ERR(dentry)) {
p->is_whiteout = ovl_is_whiteout(dentry);
dput(dentry);
@@ -312,7 +312,7 @@ static inline int ovl_dir_read(struct path *realpath,
} while (!err && rdd->count);
if (!err && rdd->first_maybe_whiteout && rdd->dentry)
- err = ovl_check_whiteouts(realpath->dentry, rdd);
+ err = ovl_check_whiteouts(realpath, rdd);
fput(realfile);
@@ -479,7 +479,7 @@ static int ovl_cache_update_ino(struct path *path, struct ovl_cache_entry *p)
goto get;
}
}
- this = lookup_one_len(p->name, dir, p->len);
+ this = lookup_one(mnt_user_ns(path->mnt), p->name, dir, p->len);
if (IS_ERR_OR_NULL(this) || !this->d_inode) {
/* Mark a stale entry */
p->is_whiteout = true;
@@ -623,8 +623,8 @@ static struct ovl_dir_cache *ovl_cache_get_impure(struct path *path)
* Removing the "impure" xattr is best effort.
*/
if (!ovl_want_write(dentry)) {
- ovl_do_removexattr(ofs, ovl_dentry_upper(dentry),
- OVL_XATTR_IMPURE);
+ ovl_removexattr(ofs, ovl_dentry_upper(dentry),
+ OVL_XATTR_IMPURE);
ovl_drop_write(dentry);
}
ovl_clear_flag(OVL_IMPURE, d_inode(dentry));
@@ -1001,7 +1001,8 @@ del_entry:
return err;
}
-void ovl_cleanup_whiteouts(struct dentry *upper, struct list_head *list)
+void ovl_cleanup_whiteouts(struct ovl_fs *ofs, struct dentry *upper,
+ struct list_head *list)
{
struct ovl_cache_entry *p;
@@ -1012,7 +1013,7 @@ void ovl_cleanup_whiteouts(struct dentry *upper, struct list_head *list)
if (WARN_ON(!p->is_whiteout || !p->is_upper))
continue;
- dentry = lookup_one_len(p->name, upper, p->len);
+ dentry = ovl_lookup_upper(ofs, p->name, upper, p->len);
if (IS_ERR(dentry)) {
pr_err("lookup '%s/%.*s' failed (%i)\n",
upper->d_name.name, p->len, p->name,
@@ -1020,7 +1021,7 @@ void ovl_cleanup_whiteouts(struct dentry *upper, struct list_head *list)
continue;
}
if (dentry->d_inode)
- ovl_cleanup(upper->d_inode, dentry);
+ ovl_cleanup(ofs, upper->d_inode, dentry);
dput(dentry);
}
inode_unlock(upper->d_inode);
@@ -1064,7 +1065,8 @@ int ovl_check_d_type_supported(struct path *realpath)
#define OVL_INCOMPATDIR_NAME "incompat"
-static int ovl_workdir_cleanup_recurse(struct path *path, int level)
+static int ovl_workdir_cleanup_recurse(struct ovl_fs *ofs, struct path *path,
+ int level)
{
int err;
struct inode *dir = path->dentry->d_inode;
@@ -1111,11 +1113,11 @@ static int ovl_workdir_cleanup_recurse(struct path *path, int level)
err = -EINVAL;
break;
}
- dentry = lookup_one_len(p->name, path->dentry, p->len);
+ dentry = ovl_lookup_upper(ofs, p->name, path->dentry, p->len);
if (IS_ERR(dentry))
continue;
if (dentry->d_inode)
- err = ovl_workdir_cleanup(dir, path->mnt, dentry, level);
+ err = ovl_workdir_cleanup(ofs, dir, path->mnt, dentry, level);
dput(dentry);
if (err)
break;
@@ -1126,24 +1128,24 @@ out:
return err;
}
-int ovl_workdir_cleanup(struct inode *dir, struct vfsmount *mnt,
- struct dentry *dentry, int level)
+int ovl_workdir_cleanup(struct ovl_fs *ofs, struct inode *dir,
+ struct vfsmount *mnt, struct dentry *dentry, int level)
{
int err;
if (!d_is_dir(dentry) || level > 1) {
- return ovl_cleanup(dir, dentry);
+ return ovl_cleanup(ofs, dir, dentry);
}
- err = ovl_do_rmdir(dir, dentry);
+ err = ovl_do_rmdir(ofs, dir, dentry);
if (err) {
struct path path = { .mnt = mnt, .dentry = dentry };
inode_unlock(dir);
- err = ovl_workdir_cleanup_recurse(&path, level + 1);
+ err = ovl_workdir_cleanup_recurse(ofs, &path, level + 1);
inode_lock_nested(dir, I_MUTEX_PARENT);
if (!err)
- err = ovl_cleanup(dir, dentry);
+ err = ovl_cleanup(ofs, dir, dentry);
}
return err;
@@ -1179,7 +1181,7 @@ int ovl_indexdir_cleanup(struct ovl_fs *ofs)
if (p->len == 2 && p->name[1] == '.')
continue;
}
- index = lookup_one_len(p->name, indexdir, p->len);
+ index = ovl_lookup_upper(ofs, p->name, indexdir, p->len);
if (IS_ERR(index)) {
err = PTR_ERR(index);
index = NULL;
@@ -1187,7 +1189,7 @@ int ovl_indexdir_cleanup(struct ovl_fs *ofs)
}
/* Cleanup leftover from index create/cleanup attempt */
if (index->d_name.name[0] == '#') {
- err = ovl_workdir_cleanup(dir, path.mnt, index, 1);
+ err = ovl_workdir_cleanup(ofs, dir, path.mnt, index, 1);
if (err)
break;
goto next;
@@ -1197,7 +1199,7 @@ int ovl_indexdir_cleanup(struct ovl_fs *ofs)
goto next;
} else if (err == -ESTALE) {
/* Cleanup stale index entries */
- err = ovl_cleanup(dir, index);
+ err = ovl_cleanup(ofs, dir, index);
} else if (err != -ENOENT) {
/*
* Abort mount to avoid corrupting the index if
@@ -1213,7 +1215,7 @@ int ovl_indexdir_cleanup(struct ovl_fs *ofs)
err = ovl_cleanup_and_whiteout(ofs, dir, index);
} else {
/* Cleanup orphan index entries */
- err = ovl_cleanup(dir, index);
+ err = ovl_cleanup(ofs, dir, index);
}
if (err)
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 14:58:41 +0000