Messages in this thread | | | Date | Sun, 9 May 2004 00:48:35 +0200 | From | Pavel Machek <> | Subject | Re: [ANNOUNCEMENT PATCH COW] proof of concept impementation of cowlinks |
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Hi!
> Couldn't sleep last night and finished a first complete version of > cowlinks, code-named MAD COW. It is still based on the stupid old > design with a flag to distinguish between regular hard links and > cowlinks. Please don't comment on that design, it's just a proof of > concept.
> Patches are against 2.6.5 but most things should apply to other 2.6 > kernel without too much trouble. > > 1 generic_sendpage - allow sendfile with ext[23] files as target > 2 sendfile - introduce vfs_sendfile for in-kernel use > 3 copyfile - new copyfile() system call
Well, up to "3" it seems usefull on its own. You might attempt to merge that.
namei.c: you realy don't want to #include in the middle of .c file.
vfs_unlink followed by BUG_ON(error)... that's definitely wrong. In case of disk error, you might get error on unlink; but you should not BUG() on that. Perhaps copyfile() should be specified as "may leave part of copy of target on disk in case of error"?
Pavel -- Horseback riding is like software... ...vgf orggre jura vgf serr. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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