diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2020-09-15 21:56:29 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2020-09-29 16:33:05 -0400 |
| commit | 9679b5a7ec400f18f1812339b59c94750db48a76 (patch) | |
| tree | 16131362cf80e7b44087173ea81b774c972bfb6c /drivers/md/dm.c | |
| parent | 828678b87eff06a4fff1e13e8b107287d522ed30 (diff) | |
dm: simplify __process_abnormal_io()
Only call bio_op() once in switch statement. Also remove the
excessive factoring out to one line functions.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 68 |
1 files changed, 17 insertions, 51 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index ea901cb09ea7..f7184b3dca66 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1474,28 +1474,6 @@ static int __clone_and_map_data_bio(struct clone_info *ci, struct dm_target *ti, return 0; } -typedef unsigned (*get_num_bios_fn)(struct dm_target *ti); - -static unsigned get_num_discard_bios(struct dm_target *ti) -{ - return ti->num_discard_bios; -} - -static unsigned get_num_secure_erase_bios(struct dm_target *ti) -{ - return ti->num_secure_erase_bios; -} - -static unsigned get_num_write_same_bios(struct dm_target *ti) -{ - return ti->num_write_same_bios; -} - -static unsigned get_num_write_zeroes_bios(struct dm_target *ti) -{ - return ti->num_write_zeroes_bios; -} - static int __send_changing_extent_only(struct clone_info *ci, struct dm_target *ti, unsigned num_bios) { @@ -1521,26 +1499,6 @@ static int __send_changing_extent_only(struct clone_info *ci, struct dm_target * return 0; } -static int __send_discard(struct clone_info *ci, struct dm_target *ti) -{ - return __send_changing_extent_only(ci, ti, get_num_discard_bios(ti)); -} - -static int __send_secure_erase(struct clone_info *ci, struct dm_target *ti) -{ - return __send_changing_extent_only(ci, ti, get_num_secure_erase_bios(ti)); -} - -static int __send_write_same(struct clone_info *ci, struct dm_target *ti) -{ - return __send_changing_extent_only(ci, ti, get_num_write_same_bios(ti)); -} - -static int __send_write_zeroes(struct clone_info *ci, struct dm_target *ti) -{ - return __send_changing_extent_only(ci, ti, get_num_write_zeroes_bios(ti)); -} - static bool is_abnormal_io(struct bio *bio) { bool r = false; @@ -1561,18 +1519,26 @@ static bool __process_abnormal_io(struct clone_info *ci, struct dm_target *ti, int *result) { struct bio *bio = ci->bio; + unsigned num_bios = 0; - if (bio_op(bio) == REQ_OP_DISCARD) - *result = __send_discard(ci, ti); - else if (bio_op(bio) == REQ_OP_SECURE_ERASE) - *result = __send_secure_erase(ci, ti); - else if (bio_op(bio) == REQ_OP_WRITE_SAME) - *result = __send_write_same(ci, ti); - else if (bio_op(bio) == REQ_OP_WRITE_ZEROES) - *result = __send_write_zeroes(ci, ti); - else + switch (bio_op(bio)) { + case REQ_OP_DISCARD: + num_bios = ti->num_discard_bios; + break; + case REQ_OP_SECURE_ERASE: + num_bios = ti->num_secure_erase_bios; + break; + case REQ_OP_WRITE_SAME: + num_bios = ti->num_write_same_bios; + break; + case REQ_OP_WRITE_ZEROES: + num_bios = ti->num_write_zeroes_bios; + break; + default: return false; + } + *result = __send_changing_extent_only(ci, ti, num_bios); return true; } |