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Patch series "nilfs2: eliminate kmap and kmap_atomic calls".
This series converts remaining kmap and kmap_atomic calls to use
kmap_local, mainly in metadata files, and eliminates calls to these
deprecated kmap functions from nilfs2.
This series does not include converting metadata files to use folios, but
it is a step in that direction.
Most conversions are straightforward, but some are not: the checkpoint
file, the inode file, and the persistent object allocator. These have
been adjusted or rewritten to avoid multiple kmap_local calls or nest them
if necessary, and to eliminate long waits like block I/O within the
highmem mapping sections.
This series has been tested in both 32-bit and 64-bit environments with
varying block sizes.
This patch (of 15):
In the recovery function when mounting, nilfs_recovery_copy_block() uses
the deprecated kmap_atomic(), so convert it to use kmap_local.
Link: https://lkml.kernel.org/r/20240122140202.6950-1-konishi.ryusuke@gmail.com
Link: https://lkml.kernel.org/r/20240122140202.6950-2-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
598daf7520