Re: [PATCH] uprobes: Teach copy_insn() to support tmpfs

[Srikar Dronamraju]

* Oleg Nesterov <oleg@xxxxxxxxxx> [2014-05-19 20:41:36]:

> tmpfs is widely used but as Denys reports shmem_aops doesn't have
> ->readpage() and thus you can't probe a binary on this filesystem.
> 
> As Hugh suggested we can use shmem_read_mapping_page() in this case,
> just we need to check shmem_mapping() if ->readpage == NULL.
> 
> Reported-by: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
> Suggested-by: Hugh Dickins <hughd@xxxxxxxxxx>
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

Acked-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>

-- 
Thanks and Regards
Srikar Dronamraju

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