Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory

Kawai, Hidehiro <[email protected]> wrote:

> Okay, the probability that the process is blocked in the proc handler seems
> to be small.  But I'm not sure if problems never occur in enterprise use.
> So I'd like to use down_write_trylock() as Robin said before. And if it
> fails to acquire the lock, it returns EBUSY immediately.
> Do you have any comments?

That's probably reasonable, but that means userspace then has to handle EBUSY.

David
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• References:
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: "Kawai, Hidehiro" <[email protected]>
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: "Kawai, Hidehiro" <[email protected]>
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: "Kawai, Hidehiro" <[email protected]>
  • [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: "Kawai, Hidehiro" <[email protected]>
  • [PATCH 0/4] coredump: core dump masking support v3
    • From: "Kawai, Hidehiro" <[email protected]>
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: David Howells <[email protected]>
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: David Howells <[email protected]>
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: David Howells <[email protected]>
  • Re: [PATCH 3/4] coredump: ELF-FDPIC: enable to omit anonymous shared memory
    • From: Robin Holt <[email protected]>

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