uprobes: Introduce copy_opcode(), kill read_opcode()

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No functional changes, preparations.

1. Extract the kmap-and-memcpy code from read_opcode() into the
   new trivial helper, copy_opcode(). The next patch will add
   another user.

2. read_opcode() becomes really trivial, fold it into its single
   caller, is_swbp_at_addr().

3. Remove "auprobe" argument from write_opcode(), it is not used
   since f403072c6.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>

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This commit is contained in:

Oleg Nesterov 2012-09-23 21:10:18 +02:00

parent e97f65a17d

commit cceb55aab7

1 changed files with 19 additions and 44 deletions

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kernel/events/uprobes.c

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