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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-11-11 15:19:07 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 11:19:11 +0100 |
| commit | 1816a2b47afae838e53a177d5d166cc7be97d6b5 (patch) | |
| tree | 70d4e3c8aca3ab26af6ebe84ed23b0ba4d4d67e9 /drivers/block/drbd/drbd_int.h | |
| parent | 3129b1b9aed15bbebde1b2a5719434273feb295d (diff) | |
| download | kernel_samsung_smdk4412-1816a2b47afae838e53a177d5d166cc7be97d6b5.zip kernel_samsung_smdk4412-1816a2b47afae838e53a177d5d166cc7be97d6b5.tar.gz kernel_samsung_smdk4412-1816a2b47afae838e53a177d5d166cc7be97d6b5.tar.bz2 | |
drbd: properly use max_hw_sectors to limit the our bio size
To ease tracking of bios in some hash tables, we want it to
not cross certain boundaries (128k, used to be 32k).
We limit the maximum bio size using queue parameters.
Historically some defines and variables we use there have been named
max_segment_size, which was misguided. Rename them to max_bio_size,
and use [blk_]queue_max_hw_sectors where appropriate.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 85207b2..bcba274 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -512,7 +512,7 @@ struct p_sizes { u64 d_size; /* size of disk */ u64 u_size; /* user requested size */ u64 c_size; /* current exported size */ - u32 max_segment_size; /* Maximal size of a BIO */ + u32 max_bio_size; /* Maximal size of a BIO */ u16 queue_order_type; /* not yet implemented in DRBD*/ u16 dds_flags; /* use enum dds_flags here. */ } __packed; @@ -1398,7 +1398,7 @@ struct bm_extent { * With a value of 8 all IO in one 128K block make it to the same slot of the * hash table. */ #define HT_SHIFT 8 -#define DRBD_MAX_SEGMENT_SIZE (1U<<(9+HT_SHIFT)) +#define DRBD_MAX_BIO_SIZE (1U<<(9+HT_SHIFT)) #define DRBD_MAX_SIZE_H80_PACKET (1 << 15) /* The old header only allows packets up to 32Kib data */ |