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| author | Mikulas Patocka <mpatocka@redhat.com> | 2019-04-29 14:57:19 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2019-05-07 16:05:11 -0400 |
| commit | 981e8a980dc25a980188b157988d8651c03adc5c (patch) | |
| tree | 1a7b34eecdcc8cce08562be44a1cf4162dd3e095 /drivers/md/dm-integrity.c | |
| parent | 88ad5d1eb147a73ad000c658dff0e5166819e6f2 (diff) | |
| download | lwn-981e8a980dc25a980188b157988d8651c03adc5c.tar.gz lwn-981e8a980dc25a980188b157988d8651c03adc5c.zip | |
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/dm-integrity.c')
| -rw-r--r-- | drivers/md/dm-integrity.c | 20 |
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; |