diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2022-07-13 07:09:04 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 11:15:30 +0200 |
| commit | 0dd4d4297a82ba82b7fe23d3dbdcd52de846ecca (patch) | |
| tree | d93407aeeeaf74ec85545cd7cffb97e436d1d1cb /include | |
| parent | b856ce5f4b55f752144baf17e9d5c415072652c5 (diff) | |
dm writecache: set a default MAX_WRITEBACK_JOBS
commit ca7dc242e358e46d963b32f9d9dd829785a9e957 upstream.
dm-writecache has the capability to limit the number of writeback jobs
in progress. However, this feature was off by default. As such there
were some out-of-memory crashes observed when lowering the low
watermark while the cache is full.
This commit enables writeback limit by default. It is set to 256MiB or
1/16 of total system memory, whichever is smaller.
Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions