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| author |   Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-05-31 16:53:33 +0200 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-07-25 17:45:33 +0200 |
| commit | 70826b6bd583a8e766ffec8415cc7d5395836370 (patch) | |
| tree | 298e494c0f1d10008a47ec68b7592d90593be396 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | btrfs: do not allocate a btrfs_bio for low-level bios (diff) | |
| download | linux-dev-70826b6bd583a8e766ffec8415cc7d5395836370.tar.xz linux-dev-70826b6bd583a8e766ffec8415cc7d5395836370.zip | |
btrfs: replace kmap() with kmap_local_page() in inode.c
The use of kmap() is being deprecated in favor of kmap_local_page() where
it is feasible. With kmap_local_page(), the mapping is per thread, CPU
local and not globally visible.
Therefore, use kmap_local_page() / kunmap_local() in inode.c wherever the
mappings are per thread and not globally visible.
Tested on QEMU + KVM 32 bits VM with 4GB of RAM and HIGHMEM64G enabled.
Suggested-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions