Re: [PATCH] x86_64: fix delayed signals

Denys Vlasenko
2008-07-12T20:57:47Z

On Saturday 12 July 2008 22:26, Török Edwin wrote:
> A bit off-topic, but something I noticed during the tests:
> In my original test I have rm-ed the files right after launching dd in
> the background, yet it still continued to write to the disk.
> I can understand that if the file is opened O_RDWR, you might seek back
> and read what you wrote, so Linux needs to actually do the write,
> but why does it insist on writing to the disk, on a file opened with
> O_WRONLY, after the file itself got unlinked?

Because process can do

fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_RDWR)

at any time.
--
vda