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| author | Mike Snitzer | 2012-07-27 16:08:00 +0200 |
|---|---|---|
| committer | Alasdair G Kergon | 2012-07-27 16:08:00 +0200 |
| commit | 542f90381422676544382d4071ba44a2de90a0c1 (patch) | |
| tree | 0eae6798ab2fdef68a0eb1ea5ac14f3cc3ffb740 /include/linux/dm-ioctl.h | |
| parent | dm stripe: remove stripes_mask (diff) | |
| download | kernel-qcow2-linux-542f90381422676544382d4071ba44a2de90a0c1.tar.gz kernel-qcow2-linux-542f90381422676544382d4071ba44a2de90a0c1.tar.xz kernel-qcow2-linux-542f90381422676544382d4071ba44a2de90a0c1.zip | |
dm: support non power of two target max_io_len
Remove the restriction that limits a target's specified maximum incoming
I/O size to be a power of 2.
Rename this setting from 'split_io' to the less-ambiguous 'max_io_len'.
Change it from sector_t to uint32_t, which is plenty big enough, and
introduce a wrapper function dm_set_target_max_io_len() to set it.
Use sector_div() to process it now that it is not necessarily a power of 2.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'include/linux/dm-ioctl.h')
| -rw-r--r-- | include/linux/dm-ioctl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h index 75fd5573516e..3ece4eee84cb 100644 --- a/include/linux/dm-ioctl.h +++ b/include/linux/dm-ioctl.h @@ -268,8 +268,8 @@ enum { #define DM_VERSION_MAJOR 4 #define DM_VERSION_MINOR 22 -#define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2011-10-19)" +#define DM_VERSION_PATCHLEVEL 1 +#define DM_VERSION_EXTRA "-ioctl (2012-06-01)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ |