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vfs: reduce memory use by embedding sync.Cond

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This commit is contained in:
Nick Craig-Wood
2022-07-28 17:35:14 +01:00
parent 821e084f28
commit e749bc58f4
4 changed files with 10 additions and 10 deletions
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6
vfs/write.go
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@@ -15,7 +15,7 @@ import (
type WriteFileHandle struct {
baseHandle
mu sync.Mutex
cond *sync.Cond // cond lock for out of sequence writes
cond sync.Cond // cond lock for out of sequence writes
closed bool // set if handle has been closed
remote string
pipeWriter *io.PipeWriter
@@ -43,7 +43,7 @@ func newWriteFileHandle(d *Dir, f *File, remote string, flags int) (*WriteFileHa
result: make(chan error, 1),
file: f,
}
fh.cond = sync.NewCond(&fh.mu)
fh.cond = sync.Cond{L: &fh.mu}
fh.file.addWriter(fh)
return fh, nil
}
@@ -130,7 +130,7 @@ func (fh *WriteFileHandle) writeAt(p []byte, off int64) (n int, err error) {
return 0, ECLOSED
}
if fh.offset != off {
waitSequential("write", fh.remote, fh.cond, fh.file.VFS().Opt.WriteWait, &fh.offset, off)
waitSequential("write", fh.remote, &fh.cond, fh.file.VFS().Opt.WriteWait, &fh.offset, off)
}
if fh.offset != off {
fs.Errorf(fh.remote, "WriteFileHandle.Write: can't seek in file without --vfs-cache-mode >= writes")