Messages in this thread | | | Date | Tue, 7 Jan 2014 16:41:19 -0500 | From | Tejun Heo <> | Subject | Re: [PATCHSET driver-core-next] kernfs, sysfs, driver-core: implement synchronous self-removal |
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On Tue, Jan 07, 2014 at 12:59:38PM -0500, Tejun Heo wrote: > This patchset improves kernfs removal path and implements > kernfs_remove_self() which is to be called from an on-going kernfs > operation and removes the self node. The function can be called > concurrently and only one will return %true and all others will wait > until the winner's file operation is complete (not the > kernfs_remove_self() call itself but the enclosing file operation > which invoked the function). This ensures that if there are multiple > concurrent "echo 1 > asdf/delete", all of them would finish only after > the whole store_delete() method is complete.
Heh, dang it. Please ignore this posting. I thought I could get away with this but apparently cgroup would need something a bit more flexible. :(
I'll post an updated version later.
Thanks.
-- tejun
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