Fabio M. De Francesco 5a6e6e7ce6 btrfs: zlib: replace kmap() with kmap_local_page() in zlib_decompress_bio()
The use of kmap() is being deprecated in favor of kmap_local_page(). With
kmap_local_page(), the mapping is per thread, CPU local and not globally
visible.

Therefore, use kmap_local_page() / kunmap_local() in zlib_decompress_bio()
because in this function the mappings are per thread and are not visible
in other contexts.

Tested with xfstests on QEMU + KVM 32-bits VM with 4GB of RAM and
HIGHMEM64G enabled. This patch passes 26/26 tests of group "compress".

Suggested-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25 17:45:41 +02:00
..
2022-07-25 17:45:39 +02:00
2021-06-22 14:11:57 +02:00
2022-07-25 17:45:39 +02:00
2022-05-24 19:55:07 -07:00