nilfs2: localize highmem mapping for checkpoint finalization within cpfile

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Move the checkpoint finalization routine to the cpfile side, and make the
page mapping local and temporary.  And use kmap_local instead of kmap to
access the checkpoint entry page when finalizing a checkpoint.

In this conversion, some of the information on the checkpoint entry being
rewritten is passed through the arguments of the newly added method
nilfs_cpfile_finalize_checkpoint().

Link: https://lkml.kernel.org/r/20240122140202.6950-13-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Ryusuke Konishi 2024-01-22 23:01:59 +09:00 • committed by Andrew Morton

parent d37db936c5

commit cce259b4c3

3 changed files with 82 additions and 46 deletions

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74

fs/nilfs2/cpfile.c

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3

fs/nilfs2/cpfile.h

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51

fs/nilfs2/segment.c

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