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| author | Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-06-18 11:19:01 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-07-25 17:45:41 +0200 |
| commit | 5a6e6e7ce6b7df615a971f30bf4215b2dc389612 (patch) | |
| tree | 48059b4239af8ff4bcd2d0fdc311168eaa29f394 /fs/btrfs/btrfs_inode.h | |
| parent | 718e58551aecf7a63aa643ec0668a0374eee9de0 (diff) | |
| download | linux-5a6e6e7ce6b7df615a971f30bf4215b2dc389612.tar.gz linux-5a6e6e7ce6b7df615a971f30bf4215b2dc389612.tar.bz2 linux-5a6e6e7ce6b7df615a971f30bf4215b2dc389612.zip | |
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>
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
0 files changed, 0 insertions, 0 deletions