Messages in this thread | | | From | "Joseph D. Wagner" <> | Subject | Re: [PATCH] fs/locks.c fcntl_setlease did not check if a file was opened for writing before granting a read lease | Date | Thu, 27 Nov 2003 14:49:51 +0600 |
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>> But I THINK this is how a patch would fix the problem, in theory.
> Sorry, it won't. ... > To detect if anyone has the file open for writing, you'll a new count > field which keeps track of writer references. Something like this: > > if ((arg == F_RDLCK) > && ((atomic_read(&inode->i_writer_count) != 0))) > > You'll also need to modify all the places where that needs to be > maintained.
Well, dang it all. Why didn't they guy who implemented leasing in the first place bother to do it right the first time?
I don't have the time or technical expertise in kernel development to go through all that. Somebody else is going to have to pick up his slack.
Joseph D. Wagner
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