ext4: add mb_debug logging when there are lost chunks

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Lost chunks are when some other process raced with the current thread
to grab a particular block allocation.  Add mb_debug log for
developers who wants to see how often this is happening for a
particular workload.

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
Link: https://lore.kernel.org/r/0a165ac0-1912-aebd-8a0d-b42e7cd1aea1@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

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brookxu 2020-08-15 08:10:44 +08:00 • committed by Theodore Ts'o

parent 7ca4fcba92

commit c55ee7d202

1 changed files with 6 additions and 3 deletions

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fs/ext4/mballoc.c

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