generic_perform_write()/iomap_write_actor(): saner logics for short copy

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if we run into a short copy and ->write_end() refuses to advance at all,
use the amount we'd managed to copy for the next iteration to handle.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Al Viro 2021-05-31 00:32:44 -04:00

parent 9067931236

commit bc1bb416bb

2 changed files with 19 additions and 30 deletions

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25

fs/iomap/buffered-io.c

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24

mm/filemap.c

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