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exofs: Remove unused data_map member from exofs_sb_info

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The struct pnfs_osd_data_map data_map member of exofs_sb_info was
never used after mount. In fact all it's members were duplicated
by the ore_layout structure. So just remove the duplicated information.

Also removed some stupid, but perfectly supported, restrictions on
layout parameters. The case where num_devices is not divisible by
mirror_count+1 is perfectly fine since the rotating device view
will eventually use all the devices it can get.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
This commit is contained in:
Boaz Harrosh
2011-08-10 14:15:02 -07:00
parent 5bf696dad4
commit 8d2d83a835
3 changed files with 24 additions and 38 deletions
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3
fs/exofs/exofs.h
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@@ -66,9 +66,6 @@ struct exofs_sb_info {
u32 s_next_generation; /* next gen # to use */
atomic_t s_curr_pending; /* number of pending commands */
struct pnfs_osd_data_map data_map; /* Default raid to use
* FIXME: Needed ?
*/
struct ore_layout layout; /* Default files layout */
struct ore_comp one_comp; /* id & cred of partition id=0*/
struct ore_components oc; /* comps for the partition */