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ore: Make ore_striping_info and ore_calc_stripe_info public

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The struct ore_striping_info will be used later in other
structures. And ore_calc_stripe_info as well. Rename them
make struct ore_striping_info public. ore_calc_stripe_info
is still static, will be made public on first use.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
This commit is contained in:
Boaz Harrosh 2011-08-10 14:17:28 -07:00
parent 8d2d83a835
commit eb507bc189
2 changed files with 16 additions and 16 deletions
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24
fs/exofs/ore.c
View File

@ -287,16 +287,8 @@ EXPORT_SYMBOL(ore_check_io);
*
* O = L % stripe_unit + N * stripe_unit + M * group_depth * stripe_unit
*/
struct _striping_info {
u64 obj_offset;
u64 group_length;
u64 M; /* for truncate */
unsigned dev;
unsigned unit_off;
};
static void _calc_stripe_info(struct ore_layout *layout, u64 file_offset,
struct _striping_info *si)
static void ore_calc_stripe_info(struct ore_layout *layout, u64 file_offset,
struct ore_striping_info *si)
{
u32 stripe_unit = layout->stripe_unit;
u32 group_width = layout->group_width;
@ -375,7 +367,7 @@ static int _add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg,
}
static int _prepare_one_group(struct ore_io_state *ios, u64 length,
struct _striping_info *si)
struct ore_striping_info *si)
{
unsigned stripe_unit = ios->layout->stripe_unit;
unsigned mirrors_p1 = ios->layout->mirrors_p1;
@ -434,14 +426,14 @@ static int _prepare_for_striping(struct ore_io_state *ios)
{
u64 length = ios->length;
u64 offset = ios->offset;
struct _striping_info si;
struct ore_striping_info si;
int ret = 0;
if (!ios->pages) {
if (ios->kern_buff) {
struct ore_per_dev_state *per_dev = &ios->per_dev[0];
_calc_stripe_info(ios->layout, ios->offset, &si);
ore_calc_stripe_info(ios->layout, ios->offset, &si);
per_dev->offset = si.obj_offset;
per_dev->dev = si.dev;
@ -455,7 +447,7 @@ static int _prepare_for_striping(struct ore_io_state *ios)
}
while (length) {
_calc_stripe_info(ios->layout, offset, &si);
ore_calc_stripe_info(ios->layout, offset, &si);
if (length < si.group_length)
si.group_length = length;
@ -744,7 +736,7 @@ static int _truncate_mirrors(struct ore_io_state *ios, unsigned cur_comp,
}
struct _trunc_info {
struct _striping_info si;
struct ore_striping_info si;
u64 prev_group_obj_off;
u64 next_group_obj_off;
@ -758,7 +750,7 @@ static void _calc_trunk_info(struct ore_layout *layout, u64 file_offset,
{
unsigned stripe_unit = layout->stripe_unit;
_calc_stripe_info(layout, file_offset, &ti->si);
ore_calc_stripe_info(layout, file_offset, &ti->si);
ti->prev_group_obj_off = ti->si.M * stripe_unit;
ti->next_group_obj_off = ti->si.M ? (ti->si.M - 1) * stripe_unit : 0;

8
include/scsi/osd_ore.h
View File

@ -56,6 +56,14 @@ struct ore_components {
struct osd_dev **ods; /* osd_dev array */
};
struct ore_striping_info {
u64 obj_offset;
u64 group_length;
u64 M; /* for truncate */
unsigned dev;
unsigned unit_off;
};
struct ore_io_state;
typedef void (*ore_io_done_fn)(struct ore_io_state *ios, void *private);