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authorMikulas Patocka <mpatocka@redhat.com>2023-06-26 16:44:34 +0200
committerMike Snitzer <snitzer@kernel.org>2023-06-27 16:00:54 -0400
commit6d50eb4725934fd22f5eeccb401000687c790fd0 (patch)
treed65f1d962121c2fbdbd50638f52c53979f400302 /drivers/md
parent81ca2dbefaabe1a2ca1c7cfc84dfd45c072c82a6 (diff)
dm integrity: reduce vmalloc space footprint on 32-bit architectures
It was reported that dm-integrity runs out of vmalloc space on 32-bit architectures. On x86, there is only 128MiB vmalloc space and dm-integrity consumes it quickly because it has a 64MiB journal and 8MiB recalculate buffer. Fix this by reducing the size of the journal to 4MiB and the size of the recalculate buffer to 1MiB, so that multiple dm-integrity devices can be created and activated on 32-bit architectures. Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-integrity.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 5e5f1c029b75..0a910bb8db17 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -34,11 +34,11 @@
#define DEFAULT_BUFFER_SECTORS 128
#define DEFAULT_JOURNAL_WATERMARK 50
#define DEFAULT_SYNC_MSEC 10000
-#define DEFAULT_MAX_JOURNAL_SECTORS 131072
+#define DEFAULT_MAX_JOURNAL_SECTORS (IS_ENABLED(CONFIG_64BIT) ? 131072 : 8192)
#define MIN_LOG2_INTERLEAVE_SECTORS 3
#define MAX_LOG2_INTERLEAVE_SECTORS 31
#define METADATA_WORKQUEUE_MAX_ACTIVE 16
-#define RECALC_SECTORS 32768
+#define RECALC_SECTORS (IS_ENABLED(CONFIG_64BIT) ? 32768 : 2048)
#define RECALC_WRITE_SUPER 16
#define BITMAP_BLOCK_SIZE 4096 /* don't change it */
#define BITMAP_FLUSH_INTERVAL (10 * HZ)