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fix: improve mount quota enforcement to prevent overflow (#7804)

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* fix: improve mount quota enforcement to prevent overflow (fixes seaweedfs-csi-driver#218)

* test: add unit tests for quota enforcement
This commit is contained in:
Chris Lu
2025-12-17 01:14:01 -08:00
committed by GitHub
parent 99a2e79efc
commit ec3378f7a6
11 changed files with 371 additions and 44 deletions
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6
weed/mount/weedfs_file_sync.go
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@@ -100,7 +100,9 @@ func (wfs *WFS) doFlush(fh *FileHandle, uid, gid uint32) fuse.Status {
// send the data to the OS
glog.V(4).Infof("doFlush %s fh %d", fileFullPath, fh.fh)
if !wfs.IsOverQuota {
// Check quota including uncommitted writes for real-time enforcement
isOverQuota := wfs.IsOverQuotaWithUncommitted()
if !isOverQuota {
if err := fh.dirtyPages.FlushData(); err != nil {
glog.Errorf("%v doFlush: %v", fileFullPath, err)
return fuse.EIO
@@ -111,7 +113,7 @@ func (wfs *WFS) doFlush(fh *FileHandle, uid, gid uint32) fuse.Status {
return fuse.OK
}
if wfs.IsOverQuota {
if isOverQuota {
return fuse.Status(syscall.ENOSPC)
}