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fix: only count hard-links once when calculating filesystem usage (#181)

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EpicPlayerA10 2024-06-29 20:56:51 +02:00 committed by GitHub
parent 934bf2493d
commit 1d8b383682
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1 changed files with 14 additions and 2 deletions
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16
server/filesystem/disk_space.go
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@ -1,6 +1,8 @@
package filesystem
import (
"golang.org/x/sys/unix"
"slices"
"sync"
"sync/atomic"
"time"
@ -164,6 +166,8 @@ func (fs *Filesystem) DirectorySize(root string) (int64, error) {
return 0, err
}
var hardLinks []uint64
var size atomic.Int64
err = fs.unixFS.WalkDirat(dirfd, name, func(dirfd int, name, _ string, d ufs.DirEntry, err error) error {
if err != nil {
@ -180,8 +184,16 @@ func (fs *Filesystem) DirectorySize(root string) (int64, error) {
return errors.Wrap(err, "lstatat err")
}
// TODO: detect if info is a hard-link and de-duplicate it.
// ref; https://github.com/pterodactyl/wings/pull/181/files
var sysFileInfo = info.Sys().(*unix.Stat_t)
if sysFileInfo.Nlink > 1 {
// Hard links have the same inode number
if slices.Contains(hardLinks, sysFileInfo.Ino) {
// Don't add hard links size twice
return nil
} else {
hardLinks = append(hardLinks, sysFileInfo.Ino)
}
}
size.Add(info.Size())
return nil