CC: [email protected] CC: [email protected] BCC: [email protected] CC: [email protected] TO: Rasmus Villemoes <[email protected]> CC: Miguel Ojeda <[email protected]> CC: Nick Desaulniers <[email protected]> CC: Andrew Morton <[email protected]> CC: Linux Memory Management List <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: eaea45fc0e7b6ae439526b4a41d91230c8517336 commit: e1edc277e6f6dfb372216522dfc57f9381c39e35 linux/container_of.h: switch to static_assert date: 6 months ago :::::: branch date: 15 hours ago :::::: commit date: 6 months ago config: arm-randconfig-c002-20220518 (https://download.01.org/0day-ci/archive/20220522/[email protected]/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 853fa8ee225edf2d0de94b0dcbd31bea916e825e) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e1edc277e6f6dfb372216522dfc57f9381c39e35 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e1edc277e6f6dfb372216522dfc57f9381c39e35 # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) include/linux/minmax.h:45:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(x, y, <) ^ include/linux/minmax.h:38:3: note: expanded from macro '__careful_cmp' __cmp_once(x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y), op)) ^ include/linux/minmax.h:33:3: note: expanded from macro '__cmp_once' __cmp(unique_x, unique_y, op); }) ^ include/linux/minmax.h:28:26: note: expanded from macro '__cmp' #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) ^ drivers/virtio/virtio_balloon.c:288:25: note: Assuming 'num' is <= field 'num_pfns' for (vb->num_pfns = 0; vb->num_pfns < num; ^~~~~~~~~~~~~~~~~~ drivers/virtio/virtio_balloon.c:288:2: note: Loop condition is false. Execution continues on line 298 for (vb->num_pfns = 0; vb->num_pfns < num; ^ drivers/virtio/virtio_balloon.c:304:10: note: Field 'num_pfns' is equal to 0 if (vb->num_pfns != 0) ^ drivers/virtio/virtio_balloon.c:304:2: note: Taking false branch if (vb->num_pfns != 0) ^ drivers/virtio/virtio_balloon.c:306:2: note: Calling 'release_pages_balloon' release_pages_balloon(vb, &pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/virtio/virtio_balloon.c:266:2: note: Assigned value is garbage or undefined list_for_each_entry_safe(page, next, pages, lru) { ^ include/linux/list.h:718:7: note: expanded from macro 'list_for_each_entry_safe' n = list_next_entry(pos, member); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:557:2: note: expanded from macro 'list_next_entry' list_entry((pos)->member.next, typeof(*(pos)), member) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:513:2: note: expanded from macro 'list_entry' container_of(ptr, type, member) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/container_of.h:18:2: note: expanded from macro 'container_of' void *__mptr = (void *)(ptr); \ ^ ~~~~~~~~~~~~~ 2 warnings generated. drivers/md/dm-kcopyd.c:246:10: warning: Access to field 'next' results in a dereference of a null pointer (loaded from variable 'pl') [clang-analyzer-core.NullDereference] next = pl->next; ^ drivers/md/dm-kcopyd.c:913:6: note: Assuming 'kc' is non-null if (!kc) ^~~ drivers/md/dm-kcopyd.c:913:2: note: Taking false branch if (!kc) ^ drivers/md/dm-kcopyd.c:916:2: note: Loop condition is false. Exiting loop spin_lock_init(&kc->job_lock); ^ include/linux/spinlock.h:352:34: note: expanded from macro 'spin_lock_init' # define spin_lock_init(_lock) \ ^ drivers/md/dm-kcopyd.c:924:6: note: Assuming 'r' is 0 if (r) ^ drivers/md/dm-kcopyd.c:924:2: note: Taking false branch if (r) ^ drivers/md/dm-kcopyd.c:927:2: note: Loop condition is false. Exiting loop INIT_WORK(&kc->kcopyd_work, do_work); ^ include/linux/workqueue.h:245:2: note: expanded from macro 'INIT_WORK' __INIT_WORK((_work), (_func), 0) ^ include/linux/workqueue.h:236:2: note: expanded from macro '__INIT_WORK' do { \ ^ drivers/md/dm-kcopyd.c:929:6: note: Assuming field 'kcopyd_wq' is non-null if (!kc->kcopyd_wq) { ^~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:929:2: note: Taking false branch if (!kc->kcopyd_wq) { ^ drivers/md/dm-kcopyd.c:939:6: note: Calling 'client_reserve_pages' r = client_reserve_pages(kc, reserve_pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:309:20: note: 'pl' initialized to a null pointer value struct page_list *pl = NULL, *next; ^~ drivers/md/dm-kcopyd.c:311:14: note: Assuming 'i' is >= 'nr_pages' for (i = 0; i < nr_pages; i++) { ^~~~~~~~~~~~ drivers/md/dm-kcopyd.c:311:2: note: Loop condition is false. Execution continues on line 322 for (i = 0; i < nr_pages; i++) { ^ drivers/md/dm-kcopyd.c:323:23: note: Passing null pointer value via 2nd parameter 'pl' kcopyd_put_pages(kc, pl); ^~ drivers/md/dm-kcopyd.c:323:2: note: Calling 'kcopyd_put_pages' kcopyd_put_pages(kc, pl); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:246:10: note: Access to field 'next' results in a dereference of a null pointer (loaded from variable 'pl') next = pl->next; ^~ >> drivers/md/dm-kcopyd.c:494:3: warning: Use of memory after it is freed >> [clang-analyzer-unix.Malloc] kcopyd_put_pages(kc, job->pages); ^ drivers/md/dm-kcopyd.c:662:2: note: Calling 'process_jobs' process_jobs(&kc->complete_jobs, kc, run_complete_job); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:611:2: note: Loop condition is true. Entering loop body while ((job = pop(jobs, kc))) { ^ drivers/md/dm-kcopyd.c:613:7: note: Calling 'run_complete_job' r = fn(job); ^~~~~~~ drivers/md/dm-kcopyd.c:493:6: note: Assuming field 'pages' is non-null if (job->pages && job->pages != &zero_page_list) ^~~~~~~~~~ drivers/md/dm-kcopyd.c:493:6: note: Left side of '&&' is true drivers/md/dm-kcopyd.c:493:20: note: Assuming the condition is true if (job->pages && job->pages != &zero_page_list) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:493:2: note: Taking true branch if (job->pages && job->pages != &zero_page_list) ^ drivers/md/dm-kcopyd.c:494:3: note: Calling 'kcopyd_put_pages' kcopyd_put_pages(kc, job->pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:248:7: note: Assuming field 'nr_free_pages' is >= field 'nr_reserved_pages' if (kc->nr_free_pages >= kc->nr_reserved_pages) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:248:3: note: Taking true branch if (kc->nr_free_pages >= kc->nr_reserved_pages) ^ drivers/md/dm-kcopyd.c:249:4: note: Calling 'free_pl' free_pl(pl); ^~~~~~~~~~~ drivers/md/dm-kcopyd.c:234:2: note: Memory is released kfree(pl); ^~~~~~~~~ drivers/md/dm-kcopyd.c:249:4: note: Returning; memory was released via 1st parameter free_pl(pl); ^~~~~~~~~~~ drivers/md/dm-kcopyd.c:245:2: note: Loop condition is false. Exiting loop do { ^ drivers/md/dm-kcopyd.c:494:3: note: Returning; memory was released via 2nd parameter kcopyd_put_pages(kc, job->pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:499:6: note: Assuming 'job' is not equal to field 'master_job' if (job->master_job == job) { ^~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:499:2: note: Taking false branch if (job->master_job == job) { ^ drivers/md/dm-kcopyd.c:505:2: note: Taking false branch if (atomic_dec_and_test(&kc->nr_jobs)) ^ drivers/md/dm-kcopyd.c:613:7: note: Returning; memory was released r = fn(job); ^~~~~~~ drivers/md/dm-kcopyd.c:615:7: note: 'r' is >= 0 if (r < 0) { ^ drivers/md/dm-kcopyd.c:615:3: note: Taking false branch if (r < 0) { ^ drivers/md/dm-kcopyd.c:626:7: note: 'r' is <= 0 if (r > 0) { ^ drivers/md/dm-kcopyd.c:626:3: note: Taking false branch if (r > 0) { ^ drivers/md/dm-kcopyd.c:611:2: note: Loop condition is true. Entering loop body while ((job = pop(jobs, kc))) { ^ drivers/md/dm-kcopyd.c:613:7: note: Calling 'run_complete_job' r = fn(job); ^~~~~~~ drivers/md/dm-kcopyd.c:493:11: note: Field 'pages' is non-null if (job->pages && job->pages != &zero_page_list) ^ drivers/md/dm-kcopyd.c:493:6: note: Left side of '&&' is true if (job->pages && job->pages != &zero_page_list) ^ drivers/md/dm-kcopyd.c:493:20: note: Assuming the condition is true if (job->pages && job->pages != &zero_page_list) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-kcopyd.c:493:2: note: Taking true branch if (job->pages && job->pages != &zero_page_list) ^ drivers/md/dm-kcopyd.c:494:3: note: Use of memory after it is freed kcopyd_put_pages(kc, job->pages); ^ ~~~~~~~~~~ 11 warnings generated. kernel/sched/core.c:5463:16: warning: Value stored to 'preempt_disable_ip' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned long preempt_disable_ip = get_preempt_disable_ip(current); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:5463:16: note: Value stored to 'preempt_disable_ip' during its initialization is never read unsigned long preempt_disable_ip = get_preempt_disable_ip(current); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6287:3: warning: Value stored to 'rq' is never read [clang-analyzer-deadcode.DeadStores] rq = context_switch(rq, prev, next, &rf); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2671:2: warning: Argument to kfree() is the address of the local variable 'iovstack', which is not memory allocated by malloc() [clang-analyzer-unix.Malloc] kfree(iov); ^ net/socket.c:2859:1: note: Calling '__do_sys_recvmmsg' SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg, ^ include/linux/syscalls.h:220:36: note: expanded from macro 'SYSCALL_DEFINE5' #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/syscalls.h:227:2: note: expanded from macro 'SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/syscalls.h:248:14: note: expanded from macro '__SYSCALL_DEFINEx' long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: expanded from here net/socket.c:2863:2: note: Taking false branch if (flags & MSG_CMSG_COMPAT) ^ net/socket.c:2866:9: note: Calling '__sys_recvmmsg' return __sys_recvmmsg(fd, mmsg, vlen, flags, timeout, NULL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2836:6: note: Assuming 'timeout' is null if (timeout && get_timespec64(&timeout_sys, timeout)) ^~~~~~~ net/socket.c:2836:14: note: Left side of '&&' is false if (timeout && get_timespec64(&timeout_sys, timeout)) ^ net/socket.c:2839:6: note: 'timeout32' is null if (timeout32 && get_old_timespec32(&timeout_sys, timeout32)) ^~~~~~~~~ net/socket.c:2839:16: note: Left side of '&&' is false if (timeout32 && get_old_timespec32(&timeout_sys, timeout32)) ^ net/socket.c:2842:7: note: 'timeout' is null if (!timeout && !timeout32) ^~~~~~~ net/socket.c:2842:6: note: Left side of '&&' is true if (!timeout && !timeout32) ^ net/socket.c:2842:19: note: 'timeout32' is null if (!timeout && !timeout32) ^~~~~~~~~ net/socket.c:2842:2: note: Taking true branch if (!timeout && !timeout32) ^ net/socket.c:2843:10: note: Calling 'do_recvmmsg' return do_recvmmsg(fd, mmsg, vlen, flags, NULL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2729:6: note: 'timeout' is null if (timeout && ^~~~~~~ net/socket.c:2729:14: note: Left side of '&&' is false if (timeout && ^ net/socket.c:2737:7: note: 'sock' is non-null if (!sock) ^~~~ net/socket.c:2737:2: note: Taking false branch if (!sock) ^ net/socket.c:2740:13: note: Assuming the condition is false if (likely(!(flags & MSG_ERRQUEUE))) { ^ include/linux/compiler.h:77:40: note: expanded from macro 'likely' # define likely(x) __builtin_expect(!!(x), 1) ^ net/socket.c:2740:2: note: Taking false branch if (likely(!(flags & MSG_ERRQUEUE))) { ^ net/socket.c:2751:9: note: Assuming 'datagrams' is < 'vlen' while (datagrams < vlen) { ^~~~~~~~~~~~~~~~ net/socket.c:2751:2: note: Loop condition is true. Entering loop body while (datagrams < vlen) { ^ net/socket.c:2755:3: note: Taking false branch if (MSG_CMSG_COMPAT & flags) { ^ net/socket.c:2764:10: note: Calling '___sys_recvmsg' err = ___sys_recvmsg(sock, ^~~~~~~~~~~~~~~~~~~~ net/socket.c:2667:6: note: 'err' is >= 0 if (err < 0) ^~~ net/socket.c:2667:2: note: Taking false branch if (err < 0) ^ net/socket.c:2671:2: note: Argument to kfree() is the address of the local variable 'iovstack', which is not memory allocated by malloc() kfree(iov); ^ ~~~ net/socket.c:2749:2: warning: Value stored to 'compat_entry' is never read [clang-analyzer-deadcode.DeadStores] compat_entry = (struct compat_mmsghdr __user *)mmsg; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2749:2: note: Value stored to 'compat_entry' is never read compat_entry = (struct compat_mmsghdr __user *)mmsg; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 2 warnings (2 with check filters). 1 warning generated. >> drivers/md/dm-stats.c:174:2: warning: Attempt to free released memory >> [clang-analyzer-unix.Malloc] kfree(s->histogram_boundaries); ^ drivers/md/dm-stats.c:212:2: note: Loop condition is true. Entering loop body while (!list_empty(&stats->list)) { ^ drivers/md/dm-stats.c:215:16: note: Assuming 'ni' is >= field 'n_entries' for (ni = 0; ni < s->n_entries; ni++) { ^~~~~~~~~~~~~~~~~ drivers/md/dm-stats.c:215:3: note: Loop condition is false. Execution continues on line 228 for (ni = 0; ni < s->n_entries; ni++) { ^ drivers/md/dm-stats.c:228:3: note: Calling 'dm_stat_free' dm_stat_free(&s->rcu_head); ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-stats.c:174:2: note: Memory is released kfree(s->histogram_boundaries); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-stats.c:177:2: note: Loop condition is true. Entering loop body for_each_possible_cpu(cpu) { ^ include/linux/cpumask.h:788:36: note: expanded from macro 'for_each_possible_cpu' #define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask) ^ include/linux/cpumask.h:179:2: note: expanded from macro 'for_each_cpu' for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) ^ drivers/md/dm-stats.c:177:2: note: Loop condition is false. Execution continues on line 181 for_each_possible_cpu(cpu) { ^ include/linux/cpumask.h:788:36: note: expanded from macro 'for_each_possible_cpu' #define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask) ^ include/linux/cpumask.h:179:2: note: expanded from macro 'for_each_cpu' for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) ^ drivers/md/dm-stats.c:228:3: note: Returning; memory was released dm_stat_free(&s->rcu_head); ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-stats.c:212:2: note: Loop condition is true. Entering loop body while (!list_empty(&stats->list)) { ^ drivers/md/dm-stats.c:215:3: note: Loop condition is false. Execution continues on line 228 for (ni = 0; ni < s->n_entries; ni++) { ^ drivers/md/dm-stats.c:228:3: note: Calling 'dm_stat_free' dm_stat_free(&s->rcu_head); ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/md/dm-stats.c:174:2: note: Attempt to free released memory kfree(s->histogram_boundaries); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. crypto/poly1305_generic.c:49:4: warning: Value stored to 'src' is never read [clang-analyzer-deadcode.DeadStores] src += POLY1305_BLOCK_SIZE; ^ crypto/poly1305_generic.c:49:4: note: Value stored to 'src' is never read Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 with check filters). 1 warning generated. Suppressed 1 warnings (1 with check filters). 3 warnings generated. drivers/media/tuners/tda18271-fe.c:473:2: warning: Value stored to 'bcal' is never read [clang-analyzer-deadcode.DeadStores] bcal = 0; ^ ~ drivers/media/tuners/tda18271-fe.c:473:2: note: Value stored to 'bcal' is never read bcal = 0; vim +494 drivers/md/dm-kcopyd.c b673c3a8192e28 drivers/md/dm-kcopyd.c Kazuo Ito 2008-10-21 475 ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 476 /* ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 477 * These three functions process 1 item from the corresponding ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 478 * job list. ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 479 * ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 480 * They return: ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 481 * < 0: error ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 482 * 0: success ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 483 * > 0: can't process yet. ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 484 */ ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 485 static int run_complete_job(struct kcopyd_job *job) ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 486 { ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 487 void *context = job->context; ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 488 int read_err = job->read_err; 4cdc1d1fa5c5ac drivers/md/kcopyd.c Alasdair G Kergon 2008-03-28 489 unsigned long write_err = job->write_err; eb69aca5d3370b drivers/md/kcopyd.c Heinz Mauelshagen 2008-04-24 490 dm_kcopyd_notify_fn fn = job->fn; eb69aca5d3370b drivers/md/kcopyd.c Heinz Mauelshagen 2008-04-24 491 struct dm_kcopyd_client *kc = job->kc; ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 492 7f06965390e4a1 drivers/md/dm-kcopyd.c Mikulas Patocka 2011-10-31 493 if (job->pages && job->pages != &zero_page_list) 138728dc96529f drivers/md/kcopyd.c Alasdair G Kergon 2006-03-27 @494 kcopyd_put_pages(kc, job->pages); c6ea41fbbe08f2 drivers/md/dm-kcopyd.c Mikulas Patocka 2011-05-29 495 /* c6ea41fbbe08f2 drivers/md/dm-kcopyd.c Mikulas Patocka 2011-05-29 496 * If this is the master job, the sub jobs have already c6ea41fbbe08f2 drivers/md/dm-kcopyd.c Mikulas Patocka 2011-05-29 497 * completed so we can free everything. c6ea41fbbe08f2 drivers/md/dm-kcopyd.c Mikulas Patocka 2011-05-29 498 */ d5ffebdd797a7c drivers/md/dm-kcopyd.c Mike Snitzer 2018-01-05 499 if (job->master_job == job) { d5ffebdd797a7c drivers/md/dm-kcopyd.c Mike Snitzer 2018-01-05 500 mutex_destroy(&job->lock); 6f1c819c219f78 drivers/md/dm-kcopyd.c Kent Overstreet 2018-05-20 501 mempool_free(job, &kc->job_pool); d5ffebdd797a7c drivers/md/dm-kcopyd.c Mike Snitzer 2018-01-05 502 } ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 503 fn(read_err, write_err, context); 138728dc96529f drivers/md/kcopyd.c Alasdair G Kergon 2006-03-27 504 138728dc96529f drivers/md/kcopyd.c Alasdair G Kergon 2006-03-27 505 if (atomic_dec_and_test(&kc->nr_jobs)) 138728dc96529f drivers/md/kcopyd.c Alasdair G Kergon 2006-03-27 506 wake_up(&kc->destroyq); 138728dc96529f drivers/md/kcopyd.c Alasdair G Kergon 2006-03-27 507 784c9a29e99eb4 drivers/md/dm-kcopyd.c John Pittman 2018-08-06 508 cond_resched(); 784c9a29e99eb4 drivers/md/dm-kcopyd.c John Pittman 2018-08-06 509 ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 510 return 0; ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 511 } ^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 512 :::::: The code at line 494 was first introduced by commit :::::: 138728dc96529f20dfe970c470e51885a60e329f [PATCH] dm snapshot: fix kcopyd destructor :::::: TO: Alasdair G Kergon <[email protected]> :::::: CC: Linus Torvalds <[email protected]> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
