sanlock-devel January 2013

sanlock-devel@lists.fedorahosted.org

1 participants
5 discussions

src/main.c
by David Teigland 24 Jan '13

24 Jan '13

src/main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) New commits: commit 4502c270ce11a9b4cff15a31804d7aa200b600d4 Author: David Teigland <teigland(a)redhat.com> Date: Thu Jan 24 14:09:55 2013 -0600 sanlock: shutdown or rem_lockspace should SIGKILL rem_lockspace (without UNUSED) or shutdown (with force) clear any pids using the lockspace. They should go directly to using SIGKILL instead of attempting to use a killpath. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/main.c b/src/main.c index 90436a5..3444f0c 100644 --- a/src/main.c +++ b/src/main.c @@ -615,7 +615,9 @@ static void kill_pids(struct space *sp) in_grace = now < (last_success + id_renewal_fail_seconds + kill_grace_seconds); - if ((kill_grace_seconds > 0) && in_grace && cl->killpath[0]) { + if (sp->external_remove || (external_shutdown > 1)) { + sig = SIGKILL; + } else if ((kill_grace_seconds > 0) && in_grace && cl->killpath[0]) { sig = SIGRUNPATH; } else if (in_grace) { sig = SIGTERM;

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fence_sanlock/fence_sanlock.8
by David Teigland 24 Jan '13

24 Jan '13

fence_sanlock/fence_sanlock.8 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) New commits: commit 30ed09ab2b5e04049f0687dc1d11cb6d9aae8ccc Author: David Teigland <teigland(a)redhat.com> Date: Thu Dec 13 14:18:22 2012 -0600 fence_sanlock: fix man page name of path arg Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/fence_sanlock/fence_sanlock.8 b/fence_sanlock/fence_sanlock.8 index 3c1d472..d9e41be 100644 --- a/fence_sanlock/fence_sanlock.8 +++ b/fence_sanlock/fence_sanlock.8 @@ -191,7 +191,7 @@ Example cluster.conf configuration for fence_sanlock: </unfence> </clusternode> -<fencedevice name="wd" agent="fence_sanlock" device="/dev/fence/leases"/> +<fencedevice name="wd" agent="fence_sanlock" path="/dev/fence/leases"/> .fi .SH SEE ALSO

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wdmd/main.c
by David Teigland 09 Jan '13

09 Jan '13

wdmd/main.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 82 insertions(+), 5 deletions(-) New commits: commit df0db196dfe27dbbaec156351faed44b3466083a Author: David Teigland <teigland(a)redhat.com> Date: Tue Jan 8 14:23:14 2013 -0600 wdmd: dynamically select working watchdog device Some watchdog drivers enable both /dev/watchdog0 and /dev/watchdog1. Sometimes, only one of them works, and the working one is not consistent. So, we need to test which works before deciding which to use. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/wdmd/main.c b/wdmd/main.c index 126524c..529b563 100644 --- a/wdmd/main.c +++ b/wdmd/main.c @@ -49,6 +49,8 @@ #define DEFAULT_SOCKET_GID 0 #define DEFAULT_SOCKET_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) +#define WDPATH_SIZE 64 + static int test_interval = DEFAULT_TEST_INTERVAL; static int fire_timeout = DEFAULT_FIRE_TIMEOUT; static int high_priority = DEFAULT_HIGH_PRIORITY; @@ -64,7 +66,9 @@ static int shm_fd; static int allow_scripts; static int kill_script_sec; static const char *scripts_dir = "/etc/wdmd.d"; -static const char *watchdog_path = "/dev/watchdog"; +static char watchdog_path[WDPATH_SIZE]; +static char option_path[WDPATH_SIZE]; +static char saved_path[WDPATH_SIZE]; struct script_status { uint64_t start; @@ -928,7 +932,7 @@ static int open_dev(void) fd = open(watchdog_path, O_WRONLY | O_CLOEXEC); if (fd < 0) { - log_error("no %s, load a watchdog driver", watchdog_path); + log_error("open %s error %d", watchdog_path, errno); return fd; } @@ -969,10 +973,18 @@ static void close_watchdog(void) dev_fd = -1; } -static int setup_watchdog(void) +static int _setup_watchdog(char *path) { + struct stat buf; int rv, timeout; + strncpy(watchdog_path, path, WDPATH_SIZE); + watchdog_path[WDPATH_SIZE - 1] = '\0'; + + rv = stat(watchdog_path, &buf); + if (rv < 0) + return -1; + rv = open_dev(); if (rv < 0) return -1; @@ -1006,9 +1018,73 @@ static int setup_watchdog(void) out: log_error("%s armed with fire_timeout %d", watchdog_path, fire_timeout); + /* TODO: save watchdog_path in /var/run/wdmd/saved_path, + * and in startup read that file, copying it to saved_path */ + return 0; } +/* + * Order of preference: + * . saved path (path used before daemon restart) + * . command line option (-w) + * . /dev/watchdog0 + * . /dev/watchdog1 + * . /dev/watchdog + */ + +static int setup_watchdog(void) +{ + int rv; + + if (!saved_path[0]) + goto opt; + + rv = _setup_watchdog(saved_path); + if (!rv) + return 0; + + opt: + if (!option_path[0] || !strcmp(saved_path, option_path)) + goto zero; + + rv = _setup_watchdog(option_path); + if (!rv) + return 0; + + zero: + if (!strcmp(saved_path, "/dev/watchdog0") || + !strcmp(option_path, "/dev/watchdog0")) + goto one; + + rv = _setup_watchdog((char *)"/dev/watchdog0"); + if (!rv) + return 0; + + one: + if (!strcmp(saved_path, "/dev/watchdog1") || + !strcmp(option_path, "/dev/watchdog1")) + goto old; + + rv = _setup_watchdog((char *)"/dev/watchdog1"); + if (!rv) + return 0; + + old: + if (!strcmp(saved_path, "/dev/watchdog") || + !strcmp(option_path, "/dev/watchdog")) + goto out; + + rv = _setup_watchdog((char *)"/dev/watchdog"); + if (!rv) + return 0; + + out: + log_error("no watchdog device, load a watchdog driver"); + return -1; + +} + static void pet_watchdog(void) { int rv, unused; @@ -1329,7 +1405,7 @@ static void print_usage_and_exit(int status) printf("-s <path> path to scripts dir (default %s)\n", scripts_dir); printf("-k <num> kill unfinished scripts after num seconds (default %d)\n", kill_script_sec); - printf("-w /dev/watchdog path to the watchdog device (default %s)\n", watchdog_path); + printf("-w /dev/watchdog path to the watchdog device to try first\n"); exit(status); } @@ -1396,7 +1472,8 @@ int main(int argc, char *argv[]) kill_script_sec = atoi(optarg); break; case 'w': - watchdog_path = strdup(optarg); + snprintf(option_path, WDPATH_SIZE, "%s", optarg); + option_path[WDPATH_SIZE - 1] = '\0'; break; } }

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src/client.c src/main.c src/sanlock_admin.h
by David Teigland 09 Jan '13

09 Jan '13

src/client.c | 21 ++++++++++++--------- src/main.c | 23 ++++++++++++----------- src/sanlock_admin.h | 6 ++---- 3 files changed, 26 insertions(+), 24 deletions(-) New commits: commit 1c6186c3df0f0cf097fdf0b637003ba5b5ced632 Author: David Teigland <teigland(a)redhat.com> Date: Tue Jan 8 16:03:42 2013 -0600 sanlock: make get_lockspaces allocate space for data Change get_lockspaces api so the client lib will allocate memory for the lockspace data and return it to the caller who will free it. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/client.c b/src/client.c index ec2953f..5c78354 100644 --- a/src/client.c +++ b/src/client.c @@ -163,10 +163,10 @@ int sanlock_rem_lockspace(struct sanlk_lockspace *ls, uint32_t flags) return cmd_lockspace(SM_CMD_REM_LOCKSPACE, ls, flags, 0); } -int sanlock_get_lockspaces(struct sanlk_lockspace *lss, int lss_size, - int *lss_count, uint32_t flags) +int sanlock_get_lockspaces(struct sanlk_lockspace **lss, int *lss_count, + uint32_t flags) { - struct sanlk_lockspace *ls; + struct sanlk_lockspace *lsbuf, *ls; struct sm_header h; int rv, fd, i, ret, recv_count; @@ -202,30 +202,33 @@ int sanlock_get_lockspaces(struct sanlk_lockspace *lss, int lss_size, *lss_count = h.data2; recv_count = h.data2; - if (recv_count * sizeof(struct sanlk_lockspace) > lss_size) { - recv_count = lss_size / sizeof(struct sanlk_lockspace); - rv = -ENOBUFS; - } - if (!lss) goto out; - ls = lss; + lsbuf = malloc(recv_count * sizeof(struct sanlk_lockspace)); + if (!lsbuf) + goto out; + + ls = lsbuf; for (i = 0; i < recv_count; i++) { ret = recv(fd, ls, sizeof(struct sanlk_lockspace), MSG_WAITALL); if (ret < 0) { rv = -errno; + free(lsbuf); goto out; } if (ret != sizeof(struct sanlk_lockspace)) { rv = -1; + free(lsbuf); goto out; } ls++; } + + *lss = lsbuf; out: close(fd); return rv; diff --git a/src/main.c b/src/main.c index 0291e22..90436a5 100644 --- a/src/main.c +++ b/src/main.c @@ -2145,10 +2145,9 @@ static int do_client(void) { struct sanlk_resource **res_args = NULL; struct sanlk_resource *res; - struct sanlk_lockspace *ls; + struct sanlk_lockspace *lss, *ls; char *res_state = NULL; char *res_str = NULL; - char *buf; uint32_t io_timeout = 0; int i, fd, count; int rv = 0; @@ -2173,21 +2172,23 @@ static int do_client(void) break; case ACT_GETS: - buf = malloc(ONEMB); - if (!buf) - break; - memset(buf, 0, ONEMB); - ls = (struct sanlk_lockspace *)buf; + lss = NULL; - rv = sanlock_get_lockspaces(ls, ONEMB, &count, 0); + rv = sanlock_get_lockspaces(&lss, &count, 0); if (rv < 0) log_tool("gets error %d", rv); - if (rv < 0 && rv != -ENOBUFS && rv != -ENOSPC) { - free(buf); + if (rv < 0 && rv != -ENOSPC) { + if (lss) + free(lss); break; } + if (!lss) + break; + + ls = lss; + for (i = 0; i < count; i++) { log_tool("s %.48s:%llu:%s:%llu %s", ls->name, @@ -2198,7 +2199,7 @@ static int do_client(void) ls++; } - free(buf); + free(lss); break; case ACT_LOG_DUMP: diff --git a/src/sanlock_admin.h b/src/sanlock_admin.h index dadd034..5d3d5af 100644 --- a/src/sanlock_admin.h +++ b/src/sanlock_admin.h @@ -67,14 +67,12 @@ int sanlock_rem_lockspace(struct sanlk_lockspace *ls, uint32_t flags); * 0: all lockspaces copied out, lss_count set to number * -ENOSPC: sanlock internal buffer ran out of space * (lss_count set to number that would have been copied) - * -ENOBUFS: lss_size too small - * (lss_count set to number that would have been copied) * * sanlk_lockspace.flags set to SANLK_LSF_ */ -int sanlock_get_lockspaces(struct sanlk_lockspace *lss, int lss_size, - int *lss_count, uint32_t flags); +int sanlock_get_lockspaces(struct sanlk_lockspace **lss, int *lss_count, + uint32_t flags); /* * Returns the alignment in bytes required by sanlock_init()

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src/client.c
by David Teigland 03 Jan '13

03 Jan '13

src/client.c | 3 +++ 1 file changed, 3 insertions(+) New commits: commit c653a6f587a3e317abe7ef7df7aaa2b162bc8b34 Author: David Teigland <teigland(a)redhat.com> Date: Thu Jan 3 14:06:23 2013 -0600 sanlock: get_lockspaces count only Accept null lss to get only the count. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/client.c b/src/client.c index 5b4d81b..ec2953f 100644 --- a/src/client.c +++ b/src/client.c @@ -207,6 +207,9 @@ int sanlock_get_lockspaces(struct sanlk_lockspace *lss, int lss_size, rv = -ENOBUFS; } + if (!lss) + goto out; + ls = lss; for (i = 0; i < recv_count; i++) {

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sanlock-devel January 2013