Re: [PATCH 2/7] drbd: Add peer device parameter to whole-bitmap I/O handlers
From: kernel test robot
Date: Wed Feb 15 2023 - 15:39:19 EST
Hi Christoph,
I love your patch! Yet something to improve:
[auto build test ERROR on a06377c5d01eeeaa52ad979b62c3c72efcc3eff0]
url: https://github.com/intel-lab-lkp/linux/commits/Christoph-B-hmwalder/drbd-Rip-out-the-ERR_IF_CNT_IS_NEGATIVE-macro/20230216-003454
base: a06377c5d01eeeaa52ad979b62c3c72efcc3eff0
patch link: https://lore.kernel.org/r/20230215163204.2856631-3-christoph.boehmwalder%40linbit.com
patch subject: [PATCH 2/7] drbd: Add peer device parameter to whole-bitmap I/O handlers
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230216/202302160440.lpWjbVR5-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/e55221e8a69f80303803dab7e079bff7b698ea02
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Christoph-B-hmwalder/drbd-Rip-out-the-ERR_IF_CNT_IS_NEGATIVE-macro/20230216-003454
git checkout e55221e8a69f80303803dab7e079bff7b698ea02
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302160440.lpWjbVR5-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
drivers/block/drbd/drbd_receiver.c: In function 'drbd_sync_handshake':
>> drivers/block/drbd/drbd_receiver.c:3593:21: error: too many arguments to function 'drbd_bitmap_io'
3593 | if (drbd_bitmap_io(device, &drbd_bmio_set_n_write, "set_n_write from sync_handshake",
| ^~~~~~~~~~~~~~
In file included from drivers/block/drbd/drbd_receiver.c:37:
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_receiver.c: In function 'receive_uuids':
drivers/block/drbd/drbd_receiver.c:4271:25: error: too many arguments to function 'drbd_bitmap_io'
4271 | drbd_bitmap_io(device, &drbd_bmio_clear_n_write,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_receiver.c: In function 'receive_bitmap':
>> drivers/block/drbd/drbd_receiver.c:4880:23: error: too few arguments to function 'drbd_send_bitmap'
4880 | err = drbd_send_bitmap(device);
| ^~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1045:12: note: declared here
1045 | extern int drbd_send_bitmap(struct drbd_device *device, struct drbd_peer_device *peer_device);
| ^~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_receiver.c: In function 'drbd_disconnected':
>> drivers/block/drbd/drbd_receiver.c:5216:40: error: passing argument 2 of 'drbd_bitmap_io' from incompatible pointer type [-Werror=incompatible-pointer-types]
5216 | drbd_bitmap_io(device, &drbd_bm_write_copy_pages,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
| |
| int (*)(struct drbd_device *)
drivers/block/drbd/drbd_int.h:1073:23: note: expected 'int (*)(struct drbd_device *, struct drbd_peer_device *)' but argument is of type 'int (*)(struct drbd_device *)'
1073 | int (*io_fn)(struct drbd_device *, struct drbd_peer_device *),
| ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_receiver.c:5216:17: error: too many arguments to function 'drbd_bitmap_io'
5216 | drbd_bitmap_io(device, &drbd_bm_write_copy_pages,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
drivers/block/drbd/drbd_main.c: In function 'send_bitmap_rle_or_plain':
>> drivers/block/drbd/drbd_main.c:1203:29: error: 'device' redeclared as different kind of symbol
1203 | struct drbd_device *device = peer_device->device;
| ^~~~~~
drivers/block/drbd/drbd_main.c:1201:51: note: previous definition of 'device' with type 'struct drbd_peer_device *'
1201 | send_bitmap_rle_or_plain(struct drbd_peer_device *device, struct bm_xfer_ctx *c)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
>> drivers/block/drbd/drbd_main.c:1203:38: error: 'peer_device' undeclared (first use in this function); did you mean 'phy_device'?
1203 | struct drbd_device *device = peer_device->device;
| ^~~~~~~~~~~
| phy_device
drivers/block/drbd/drbd_main.c:1203:38: note: each undeclared identifier is reported only once for each function it appears in
drivers/block/drbd/drbd_main.c: In function '_drbd_send_bitmap':
>> drivers/block/drbd/drbd_main.c:1272:29: error: too few arguments to function 'drbd_bm_write'
1272 | if (drbd_bm_write(device)) {
| ^~~~~~~~~~~~~
In file included from drivers/block/drbd/drbd_main.c:46:
drivers/block/drbd/drbd_int.h:1293:13: note: declared here
1293 | extern int drbd_bm_write(struct drbd_device *device,
| ^~~~~~~~~~~~~
drivers/block/drbd/drbd_main.c: At top level:
>> drivers/block/drbd/drbd_main.c:3497:6: error: conflicting types for 'drbd_queue_bitmap_io'; have 'void(struct drbd_device *, int (*)(struct drbd_device *, struct drbd_peer_device *), void (*)(struct drbd_device *, int), char *, enum bm_flag, struct drbd_peer_device *)'
3497 | void drbd_queue_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1068:13: note: previous declaration of 'drbd_queue_bitmap_io' with type 'void(struct drbd_device *, int (*)(struct drbd_device *, struct drbd_peer_device *), void (*)(struct drbd_device *, int), char *, enum bm_flag)'
1068 | extern void drbd_queue_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/block/drbd/drbd_main.c:3540:5: error: conflicting types for 'drbd_bitmap_io'; have 'int(struct drbd_device *, int (*)(struct drbd_device *, struct drbd_peer_device *), char *, enum bm_flag, struct drbd_peer_device *)'
3540 | int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: previous declaration of 'drbd_bitmap_io' with type 'int(struct drbd_device *, int (*)(struct drbd_device *, struct drbd_peer_device *), char *, enum bm_flag)'
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
--
In file included from include/linux/drbd_genl_api.h:54,
from drivers/block/drbd/drbd_int.h:35,
from drivers/block/drbd/drbd_nl.c:24:
include/linux/drbd_genl_api.h:51:33: warning: no previous prototype for 'drbd_genl_cmd_to_str' [-Wmissing-prototypes]
51 | #define GENL_MAGIC_FAMILY drbd
| ^~~~
include/linux/genl_magic_struct.h:20:25: note: in definition of macro 'CONCAT__'
20 | #define CONCAT__(a,b) a ## b
| ^
include/linux/genl_magic_func.h:212:13: note: in expansion of macro 'CONCAT_'
212 | const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
| ^~~~~~~
include/linux/genl_magic_func.h:212:21: note: in expansion of macro 'GENL_MAGIC_FAMILY'
212 | const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
| ^~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c: In function 'drbd_determine_dev_size':
drivers/block/drbd/drbd_nl.c:1055:70: warning: pointer type mismatch in conditional expression
1055 | drbd_bitmap_io(device, md_moved ? &drbd_bm_write_all : &drbd_bm_write,
| ^
>> drivers/block/drbd/drbd_nl.c:1055:17: error: too many arguments to function 'drbd_bitmap_io'
1055 | drbd_bitmap_io(device, md_moved ? &drbd_bm_write_all : &drbd_bm_write,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c: In function 'drbd_adm_attach':
drivers/block/drbd/drbd_nl.c:2029:21: error: too many arguments to function 'drbd_bitmap_io'
2029 | if (drbd_bitmap_io(device, &drbd_bmio_set_n_write,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c:2036:21: error: too many arguments to function 'drbd_bitmap_io'
2036 | if (drbd_bitmap_io(device, &drbd_bm_read,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c: In function 'drbd_adm_invalidate':
drivers/block/drbd/drbd_nl.c:2976:29: error: too many arguments to function 'drbd_bitmap_io'
2976 | if (drbd_bitmap_io(device, &drbd_bmio_set_n_write,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c: In function 'drbd_bmio_set_susp_al':
>> drivers/block/drbd/drbd_nl.c:3014:14: error: too few arguments to function 'drbd_bmio_set_n_write'
3014 | rv = drbd_bmio_set_n_write(device);
| ^~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1078:12: note: declared here
1078 | extern int drbd_bmio_set_n_write(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c: In function 'drbd_adm_invalidate_peer':
>> drivers/block/drbd/drbd_nl.c:3055:52: error: passing argument 2 of 'drbd_bitmap_io' from incompatible pointer type [-Werror=incompatible-pointer-types]
3055 | if (drbd_bitmap_io(device, &drbd_bmio_set_susp_al,
| ^~~~~~~~~~~~~~~~~~~~~~
| |
| int (*)(struct drbd_device *)
drivers/block/drbd/drbd_int.h:1073:23: note: expected 'int (*)(struct drbd_device *, struct drbd_peer_device *)' but argument is of type 'int (*)(struct drbd_device *)'
1073 | int (*io_fn)(struct drbd_device *, struct drbd_peer_device *),
| ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c:3055:29: error: too many arguments to function 'drbd_bitmap_io'
3055 | if (drbd_bitmap_io(device, &drbd_bmio_set_susp_al,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_nl.c: In function 'drbd_adm_new_c_uuid':
drivers/block/drbd/drbd_nl.c:4152:23: error: too many arguments to function 'drbd_bitmap_io'
4152 | err = drbd_bitmap_io(device, &drbd_bmio_clear_n_write,
| ^~~~~~~~~~~~~~
drivers/block/drbd/drbd_int.h:1072:12: note: declared here
1072 | extern int drbd_bitmap_io(struct drbd_device *device,
| ^~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
>> drivers/block/drbd/drbd_state.c:1520:5: error: conflicting types for 'drbd_bitmap_io_from_worker'; have 'int(struct drbd_device *, int (*)(struct drbd_device *, struct drbd_peer_device *), char *, enum bm_flag, struct drbd_peer_device *)'
1520 | int drbd_bitmap_io_from_worker(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/block/drbd/drbd_state.c:17:
drivers/block/drbd/drbd_int.h:1075:12: note: previous declaration of 'drbd_bitmap_io_from_worker' with type 'int(struct drbd_device *, int (*)(struct drbd_device *, struct drbd_peer_device *), char *, enum bm_flag)'
1075 | extern int drbd_bitmap_io_from_worker(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_state.c: In function 'after_state_ch':
>> drivers/block/drbd/drbd_state.c:1842:25: error: too few arguments to function 'drbd_bitmap_io_from_worker'
1842 | drbd_bitmap_io_from_worker(device, &drbd_bm_write,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_state.c:1520:5: note: declared here
1520 | int drbd_bitmap_io_from_worker(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_state.c:1854:17: error: too few arguments to function 'drbd_bitmap_io_from_worker'
1854 | drbd_bitmap_io_from_worker(device, &drbd_bm_write,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/drbd/drbd_state.c:1520:5: note: declared here
1520 | int drbd_bitmap_io_from_worker(struct drbd_device *device,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/block/drbd/drbd_state.c:2014:46: error: passing argument 2 of 'drbd_queue_bitmap_io' from incompatible pointer type [-Werror=incompatible-pointer-types]
2014 | drbd_queue_bitmap_io(device, &drbd_bm_write_copy_pages, NULL,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
| |
| int (*)(struct drbd_device *)
drivers/block/drbd/drbd_int.h:1069:40: note: expected 'int (*)(struct drbd_device *, struct drbd_peer_device *)' but argument is of type 'int (*)(struct drbd_device *)'
1069 | int (*io_fn)(struct drbd_device *, struct drbd_peer_device *),
| ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/drbd_bitmap_io +3593 drivers/block/drbd/drbd_receiver.c
b411b3637fa71f Philipp Reisner 2009-09-25 3443
b411b3637fa71f Philipp Reisner 2009-09-25 3444 /* drbd_sync_handshake() returns the new conn state on success, or
b411b3637fa71f Philipp Reisner 2009-09-25 3445 CONN_MASK (-1) on failure.
b411b3637fa71f Philipp Reisner 2009-09-25 3446 */
69a227731a378f Andreas Gruenbacher 2011-08-09 3447 static enum drbd_conns drbd_sync_handshake(struct drbd_peer_device *peer_device,
69a227731a378f Andreas Gruenbacher 2011-08-09 3448 enum drbd_role peer_role,
b411b3637fa71f Philipp Reisner 2009-09-25 3449 enum drbd_disk_state peer_disk) __must_hold(local)
b411b3637fa71f Philipp Reisner 2009-09-25 3450 {
69a227731a378f Andreas Gruenbacher 2011-08-09 3451 struct drbd_device *device = peer_device->device;
b411b3637fa71f Philipp Reisner 2009-09-25 3452 enum drbd_conns rv = C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3453 enum drbd_disk_state mydisk;
44ed167da74825 Philipp Reisner 2011-04-19 3454 struct net_conf *nc;
d29e89e34952a9 Roland Kammerer 2018-12-20 3455 int hg, rule_nr, rr_conflict, tentative, always_asbp;
b411b3637fa71f Philipp Reisner 2009-09-25 3456
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3457 mydisk = device->state.disk;
b411b3637fa71f Philipp Reisner 2009-09-25 3458 if (mydisk == D_NEGOTIATING)
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3459 mydisk = device->new_state_tmp.disk;
b411b3637fa71f Philipp Reisner 2009-09-25 3460
d01801710265cf Andreas Gruenbacher 2011-07-03 3461 drbd_info(device, "drbd_sync_handshake:\n");
9f2247bb9b75b2 Philipp Reisner 2012-08-16 3462
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3463 spin_lock_irq(&device->ldev->md.uuid_lock);
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3464 drbd_uuid_dump(device, "self", device->ldev->md.uuid, device->comm_bm_set, 0);
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3465 drbd_uuid_dump(device, "peer", device->p_uuid,
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3466 device->p_uuid[UI_SIZE], device->p_uuid[UI_FLAGS]);
b411b3637fa71f Philipp Reisner 2009-09-25 3467
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3468 hg = drbd_uuid_compare(device, peer_role, &rule_nr);
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3469 spin_unlock_irq(&device->ldev->md.uuid_lock);
b411b3637fa71f Philipp Reisner 2009-09-25 3470
d01801710265cf Andreas Gruenbacher 2011-07-03 3471 drbd_info(device, "uuid_compare()=%d by rule %d\n", hg, rule_nr);
b411b3637fa71f Philipp Reisner 2009-09-25 3472
b411b3637fa71f Philipp Reisner 2009-09-25 3473 if (hg == -1000) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3474 drbd_alert(device, "Unrelated data, aborting!\n");
b411b3637fa71f Philipp Reisner 2009-09-25 3475 return C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3476 }
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3477 if (hg < -0x10000) {
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3478 int proto, fflags;
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3479 hg = -hg;
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3480 proto = hg & 0xff;
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3481 fflags = (hg >> 8) & 0xff;
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3482 drbd_alert(device, "To resolve this both sides have to support at least protocol %d and feature flags 0x%x\n",
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3483 proto, fflags);
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3484 return C_MASK;
f2d3d75b66fc80 Lars Ellenberg 2016-06-14 3485 }
4a23f264969827 Philipp Reisner 2011-01-11 3486 if (hg < -1000) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3487 drbd_alert(device, "To resolve this both sides have to support at least protocol %d\n", -hg - 1000);
b411b3637fa71f Philipp Reisner 2009-09-25 3488 return C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3489 }
b411b3637fa71f Philipp Reisner 2009-09-25 3490
b411b3637fa71f Philipp Reisner 2009-09-25 3491 if ((mydisk == D_INCONSISTENT && peer_disk > D_INCONSISTENT) ||
b411b3637fa71f Philipp Reisner 2009-09-25 3492 (peer_disk == D_INCONSISTENT && mydisk > D_INCONSISTENT)) {
b411b3637fa71f Philipp Reisner 2009-09-25 3493 int f = (hg == -100) || abs(hg) == 2;
b411b3637fa71f Philipp Reisner 2009-09-25 3494 hg = mydisk > D_INCONSISTENT ? 1 : -1;
b411b3637fa71f Philipp Reisner 2009-09-25 3495 if (f)
b411b3637fa71f Philipp Reisner 2009-09-25 3496 hg = hg*2;
d01801710265cf Andreas Gruenbacher 2011-07-03 3497 drbd_info(device, "Becoming sync %s due to disk states.\n",
b411b3637fa71f Philipp Reisner 2009-09-25 3498 hg > 0 ? "source" : "target");
b411b3637fa71f Philipp Reisner 2009-09-25 3499 }
b411b3637fa71f Philipp Reisner 2009-09-25 3500
3a11a4878939e0 Adam Gandelman 2010-04-08 3501 if (abs(hg) == 100)
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3502 drbd_khelper(device, "initial-split-brain");
3a11a4878939e0 Adam Gandelman 2010-04-08 3503
44ed167da74825 Philipp Reisner 2011-04-19 3504 rcu_read_lock();
69a227731a378f Andreas Gruenbacher 2011-08-09 3505 nc = rcu_dereference(peer_device->connection->net_conf);
d29e89e34952a9 Roland Kammerer 2018-12-20 3506 always_asbp = nc->always_asbp;
d29e89e34952a9 Roland Kammerer 2018-12-20 3507 rr_conflict = nc->rr_conflict;
d29e89e34952a9 Roland Kammerer 2018-12-20 3508 tentative = nc->tentative;
d29e89e34952a9 Roland Kammerer 2018-12-20 3509 rcu_read_unlock();
44ed167da74825 Philipp Reisner 2011-04-19 3510
d29e89e34952a9 Roland Kammerer 2018-12-20 3511 if (hg == 100 || (hg == -100 && always_asbp)) {
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3512 int pcount = (device->state.role == R_PRIMARY)
b411b3637fa71f Philipp Reisner 2009-09-25 3513 + (peer_role == R_PRIMARY);
b411b3637fa71f Philipp Reisner 2009-09-25 3514 int forced = (hg == -100);
b411b3637fa71f Philipp Reisner 2009-09-25 3515
b411b3637fa71f Philipp Reisner 2009-09-25 3516 switch (pcount) {
b411b3637fa71f Philipp Reisner 2009-09-25 3517 case 0:
69a227731a378f Andreas Gruenbacher 2011-08-09 3518 hg = drbd_asb_recover_0p(peer_device);
b411b3637fa71f Philipp Reisner 2009-09-25 3519 break;
b411b3637fa71f Philipp Reisner 2009-09-25 3520 case 1:
69a227731a378f Andreas Gruenbacher 2011-08-09 3521 hg = drbd_asb_recover_1p(peer_device);
b411b3637fa71f Philipp Reisner 2009-09-25 3522 break;
b411b3637fa71f Philipp Reisner 2009-09-25 3523 case 2:
69a227731a378f Andreas Gruenbacher 2011-08-09 3524 hg = drbd_asb_recover_2p(peer_device);
b411b3637fa71f Philipp Reisner 2009-09-25 3525 break;
b411b3637fa71f Philipp Reisner 2009-09-25 3526 }
b411b3637fa71f Philipp Reisner 2009-09-25 3527 if (abs(hg) < 100) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3528 drbd_warn(device, "Split-Brain detected, %d primaries, "
b411b3637fa71f Philipp Reisner 2009-09-25 3529 "automatically solved. Sync from %s node\n",
b411b3637fa71f Philipp Reisner 2009-09-25 3530 pcount, (hg < 0) ? "peer" : "this");
b411b3637fa71f Philipp Reisner 2009-09-25 3531 if (forced) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3532 drbd_warn(device, "Doing a full sync, since"
b411b3637fa71f Philipp Reisner 2009-09-25 3533 " UUIDs where ambiguous.\n");
b411b3637fa71f Philipp Reisner 2009-09-25 3534 hg = hg*2;
b411b3637fa71f Philipp Reisner 2009-09-25 3535 }
b411b3637fa71f Philipp Reisner 2009-09-25 3536 }
b411b3637fa71f Philipp Reisner 2009-09-25 3537 }
b411b3637fa71f Philipp Reisner 2009-09-25 3538
b411b3637fa71f Philipp Reisner 2009-09-25 3539 if (hg == -100) {
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3540 if (test_bit(DISCARD_MY_DATA, &device->flags) && !(device->p_uuid[UI_FLAGS]&1))
b411b3637fa71f Philipp Reisner 2009-09-25 3541 hg = -1;
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3542 if (!test_bit(DISCARD_MY_DATA, &device->flags) && (device->p_uuid[UI_FLAGS]&1))
b411b3637fa71f Philipp Reisner 2009-09-25 3543 hg = 1;
b411b3637fa71f Philipp Reisner 2009-09-25 3544
b411b3637fa71f Philipp Reisner 2009-09-25 3545 if (abs(hg) < 100)
d01801710265cf Andreas Gruenbacher 2011-07-03 3546 drbd_warn(device, "Split-Brain detected, manually solved. "
b411b3637fa71f Philipp Reisner 2009-09-25 3547 "Sync from %s node\n",
b411b3637fa71f Philipp Reisner 2009-09-25 3548 (hg < 0) ? "peer" : "this");
b411b3637fa71f Philipp Reisner 2009-09-25 3549 }
b411b3637fa71f Philipp Reisner 2009-09-25 3550
b411b3637fa71f Philipp Reisner 2009-09-25 3551 if (hg == -100) {
580b9767dbdf2c Lars Ellenberg 2010-02-26 3552 /* FIXME this log message is not correct if we end up here
580b9767dbdf2c Lars Ellenberg 2010-02-26 3553 * after an attempted attach on a diskless node.
580b9767dbdf2c Lars Ellenberg 2010-02-26 3554 * We just refuse to attach -- well, we drop the "connection"
580b9767dbdf2c Lars Ellenberg 2010-02-26 3555 * to that disk, in a way... */
d01801710265cf Andreas Gruenbacher 2011-07-03 3556 drbd_alert(device, "Split-Brain detected but unresolved, dropping connection!\n");
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3557 drbd_khelper(device, "split-brain");
b411b3637fa71f Philipp Reisner 2009-09-25 3558 return C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3559 }
b411b3637fa71f Philipp Reisner 2009-09-25 3560
b411b3637fa71f Philipp Reisner 2009-09-25 3561 if (hg > 0 && mydisk <= D_INCONSISTENT) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3562 drbd_err(device, "I shall become SyncSource, but I am inconsistent!\n");
b411b3637fa71f Philipp Reisner 2009-09-25 3563 return C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3564 }
b411b3637fa71f Philipp Reisner 2009-09-25 3565
b411b3637fa71f Philipp Reisner 2009-09-25 3566 if (hg < 0 && /* by intention we do not use mydisk here. */
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3567 device->state.role == R_PRIMARY && device->state.disk >= D_CONSISTENT) {
44ed167da74825 Philipp Reisner 2011-04-19 3568 switch (rr_conflict) {
b411b3637fa71f Philipp Reisner 2009-09-25 3569 case ASB_CALL_HELPER:
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3570 drbd_khelper(device, "pri-lost");
df561f6688fef7 Gustavo A. R. Silva 2020-08-23 3571 fallthrough;
b411b3637fa71f Philipp Reisner 2009-09-25 3572 case ASB_DISCONNECT:
d01801710265cf Andreas Gruenbacher 2011-07-03 3573 drbd_err(device, "I shall become SyncTarget, but I am primary!\n");
b411b3637fa71f Philipp Reisner 2009-09-25 3574 return C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3575 case ASB_VIOLENTLY:
d01801710265cf Andreas Gruenbacher 2011-07-03 3576 drbd_warn(device, "Becoming SyncTarget, violating the stable-data"
b411b3637fa71f Philipp Reisner 2009-09-25 3577 "assumption\n");
b411b3637fa71f Philipp Reisner 2009-09-25 3578 }
b411b3637fa71f Philipp Reisner 2009-09-25 3579 }
b411b3637fa71f Philipp Reisner 2009-09-25 3580
69a227731a378f Andreas Gruenbacher 2011-08-09 3581 if (tentative || test_bit(CONN_DRY_RUN, &peer_device->connection->flags)) {
cf14c2e987ba0a Philipp Reisner 2010-02-02 3582 if (hg == 0)
d01801710265cf Andreas Gruenbacher 2011-07-03 3583 drbd_info(device, "dry-run connect: No resync, would become Connected immediately.\n");
cf14c2e987ba0a Philipp Reisner 2010-02-02 3584 else
d01801710265cf Andreas Gruenbacher 2011-07-03 3585 drbd_info(device, "dry-run connect: Would become %s, doing a %s resync.",
cf14c2e987ba0a Philipp Reisner 2010-02-02 3586 drbd_conn_str(hg > 0 ? C_SYNC_SOURCE : C_SYNC_TARGET),
cf14c2e987ba0a Philipp Reisner 2010-02-02 3587 abs(hg) >= 2 ? "full" : "bit-map based");
cf14c2e987ba0a Philipp Reisner 2010-02-02 3588 return C_MASK;
cf14c2e987ba0a Philipp Reisner 2010-02-02 3589 }
cf14c2e987ba0a Philipp Reisner 2010-02-02 3590
b411b3637fa71f Philipp Reisner 2009-09-25 3591 if (abs(hg) >= 2) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3592 drbd_info(device, "Writing the whole bitmap, full sync required after drbd_sync_handshake.\n");
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 @3593 if (drbd_bitmap_io(device, &drbd_bmio_set_n_write, "set_n_write from sync_handshake",
e55221e8a69f80 Andreas Gruenbacher 2023-02-15 3594 BM_LOCKED_SET_ALLOWED, NULL))
b411b3637fa71f Philipp Reisner 2009-09-25 3595 return C_MASK;
b411b3637fa71f Philipp Reisner 2009-09-25 3596 }
b411b3637fa71f Philipp Reisner 2009-09-25 3597
b411b3637fa71f Philipp Reisner 2009-09-25 3598 if (hg > 0) { /* become sync source. */
b411b3637fa71f Philipp Reisner 2009-09-25 3599 rv = C_WF_BITMAP_S;
b411b3637fa71f Philipp Reisner 2009-09-25 3600 } else if (hg < 0) { /* become sync target */
b411b3637fa71f Philipp Reisner 2009-09-25 3601 rv = C_WF_BITMAP_T;
b411b3637fa71f Philipp Reisner 2009-09-25 3602 } else {
b411b3637fa71f Philipp Reisner 2009-09-25 3603 rv = C_CONNECTED;
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3604 if (drbd_bm_total_weight(device)) {
d01801710265cf Andreas Gruenbacher 2011-07-03 3605 drbd_info(device, "No resync, but %lu bits in bitmap!\n",
b30ab7913b0a7b Andreas Gruenbacher 2011-07-03 3606 drbd_bm_total_weight(device));
b411b3637fa71f Philipp Reisner 2009-09-25 3607 }
b411b3637fa71f Philipp Reisner 2009-09-25 3608 }
b411b3637fa71f Philipp Reisner 2009-09-25 3609
b411b3637fa71f Philipp Reisner 2009-09-25 3610 return rv;
b411b3637fa71f Philipp Reisner 2009-09-25 3611 }
b411b3637fa71f Philipp Reisner 2009-09-25 3612
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests