bcachefs: Fix silent short reads in data read retry path

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__bch2_read, before calling __bch2_read_extent(), sets bvec_iter.bi_size
to "the size we can read from the current extent" with a swap, and
restores it to "the size for the total read" after the read_extent call
with another swap.

But we neglected to do the restore before the "if (ret) goto err;" -
which is a problem if we're retrying those errors.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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This commit is contained in:

Kent Overstreet 2025-03-24 11:51:01 -04:00

parent 5af61dbd96

commit 3ba0240a87

3 changed files with 7 additions and 4 deletions

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2

fs/bcachefs/fs-io-buffered.c

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3

fs/bcachefs/io_read.c

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6

fs/bcachefs/io_read.h

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