diff options
| author | Alexander Gordeev <[email protected]> | 2022-07-19 07:16:36 +0200 |
|---|---|---|
| committer | Alexander Gordeev <[email protected]> | 2022-07-20 17:21:41 +0200 |
| commit | ebbc9570169147740aa39aee1d61b4cc5a631644 (patch) | |
| tree | 6e20330871a3413057779aed54ebf806b526a681 /lib/mpi/mpi-add.c | |
| parent | 6d2e5a4a13da2e91a46a37cd00d23dba8613ad7b (diff) | |
s390/crash: support multi-segment iterators
Make it possible to handle not only single-, but also multi-
segment iterators in copy_oldmem_iter() callback. Change the
semantics of called functions to match the iterator model -
instead of an error code the exact number of bytes copied is
returned.
The swap page used to copy data to user space is adopted for
kernel space too. That does not bring any performance impact.
Suggested-by: Matthew Wilcox <[email protected]>
Fixes: cc02e6e21aa5 ("s390/crash: add missing iterator advance in copy_oldmem_page()")
Acked-by: Heiko Carstens <[email protected]>
Tested-by: Alexander Egorenkov <[email protected]>
Link: https://lore.kernel.org/r/5af6da3a0bffe48a90b0b7139ecf6a818b2d18e8.1658206891.git.agordeev@linux.ibm.com
Signed-off-by: Alexander Gordeev <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-add.c')
0 files changed, 0 insertions, 0 deletions