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| author | Mikulas Patocka <mpatocka@redhat.com> | 2023-06-26 16:44:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-23 13:49:35 +0200 |
| commit | b933df9dda0127eee4fd2001236accf264c94697 (patch) | |
| tree | 5dba78f2270d3ca280dc1848105b702cf9082c8a /drivers/md | |
| parent | ef709350ef0b42995f899c8ef7bf74690dca4d76 (diff) | |
| download | linux-stable-b933df9dda0127eee4fd2001236accf264c94697.tar.gz linux-stable-b933df9dda0127eee4fd2001236accf264c94697.tar.bz2 linux-stable-b933df9dda0127eee4fd2001236accf264c94697.zip | |
dm integrity: reduce vmalloc space footprint on 32-bit architectures
commit 6d50eb4725934fd22f5eeccb401000687c790fd0 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-integrity.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index a2b8f8781a99..fe7dad3ffa75 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -33,11 +33,11 @@ #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) |