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authorMikulas Patocka <mpatocka@redhat.com>2019-04-29 14:57:19 +0200
committerMike Snitzer <snitzer@redhat.com>2019-05-07 16:05:11 -0400
commit981e8a980dc25a980188b157988d8651c03adc5c (patch)
tree1a7b34eecdcc8cce08562be44a1cf4162dd3e095 /drivers/md
parent88ad5d1eb147a73ad000c658dff0e5166819e6f2 (diff)
downloadlinux-981e8a980dc25a980188b157988d8651c03adc5c.tar.gz
dm integrity: introduce rw_journal_sectors()
Introduce a function rw_journal_sectors() that takes sector and length as its arguments instead of a section and the number of sections. This functions will be used in further patches. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-integrity.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 4c3bc16d3750..8bc1849a6c8d 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -761,12 +761,12 @@ static void complete_journal_io(unsigned long error, void *context)
complete_journal_op(comp);
}
-static void rw_journal(struct dm_integrity_c *ic, int op, int op_flags, unsigned section,
- unsigned n_sections, struct journal_completion *comp)
+static void rw_journal_sectors(struct dm_integrity_c *ic, int op, int op_flags,
+ unsigned sector, unsigned n_sectors, struct journal_completion *comp)
{
struct dm_io_request io_req;
struct dm_io_region io_loc;
- unsigned sector, n_sectors, pl_index, pl_offset;
+ unsigned pl_index, pl_offset;
int r;
if (unlikely(dm_integrity_failed(ic))) {
@@ -775,9 +775,6 @@ static void rw_journal(struct dm_integrity_c *ic, int op, int op_flags, unsigned
return;
}
- sector = section * ic->journal_section_sectors;
- n_sectors = n_sections * ic->journal_section_sectors;
-
pl_index = sector >> (PAGE_SHIFT - SECTOR_SHIFT);
pl_offset = (sector << SECTOR_SHIFT) & (PAGE_SIZE - 1);
@@ -810,6 +807,17 @@ static void rw_journal(struct dm_integrity_c *ic, int op, int op_flags, unsigned
}
}
+static void rw_journal(struct dm_integrity_c *ic, int op, int op_flags, unsigned section,
+ unsigned n_sections, struct journal_completion *comp)
+{
+ unsigned sector, n_sectors;
+
+ sector = section * ic->journal_section_sectors;
+ n_sectors = n_sections * ic->journal_section_sectors;
+
+ rw_journal_sectors(ic, op, op_flags, sector, n_sectors, comp);
+}
+
static void write_journal(struct dm_integrity_c *ic, unsigned commit_start, unsigned commit_sections)
{
struct journal_completion io_comp;