X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Futils%2Flhsmtool_posix.c;h=fa9f009962a1cf3f0423b8b2873037c57c7048a0;hp=7650a8d69db2cdf85e93a3a8cf5646601fc45523;hb=ce8735993473c1055038f7422350c96b092d707d;hpb=39f5f271f6f8297c3478390d94466ffb071e313e diff --git a/lustre/utils/lhsmtool_posix.c b/lustre/utils/lhsmtool_posix.c index 7650a8d..fa9f009 100644 --- a/lustre/utils/lhsmtool_posix.c +++ b/lustre/utils/lhsmtool_posix.c @@ -23,6 +23,7 @@ * (C) Copyright 2012 Commissariat a l'energie atomique et aux energies * alternatives * + * Copyright (c) 2013, 2016, Intel Corporation. */ /* HSM copytool program for POSIX filesystem-based HSM's. * @@ -36,16 +37,27 @@ #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif +#include +#include #include #include #include +#include #include #include +#include +#include +#include +#include #include +#include +#include #include #include #include -#include + +#include +#include #include /* Progress reporting period */ @@ -57,11 +69,9 @@ #define ONE_MB 0x100000 -/* copytool uses a 32b bitmask field to register with kuc - * archive num = 0 => all - * archive num from 1 to 32 - */ -#define MAX_ARCHIVE_CNT (sizeof(__u32) * 8) +#ifndef NSEC_PER_SEC +# define NSEC_PER_SEC 1000000000UL +#endif enum ct_action { CA_IMPORT = 1, @@ -78,13 +88,14 @@ struct options { int o_verbose; int o_copy_xattrs; int o_archive_cnt; - int o_archive_id[MAX_ARCHIVE_CNT]; + int o_archive_id[LL_HSM_MAX_ARCHIVE]; int o_report_int; unsigned long long o_bandwidth; size_t o_chunk_size; enum ct_action o_action; char *o_event_fifo; char *o_mnt; + int o_mnt_fd; char *o_hsm_root; char *o_src; /* for import, or rebind */ char *o_dst; /* for import, or rebind */ @@ -115,27 +126,34 @@ static char fs_name[MAX_OBD_NAME + 1]; static struct hsm_copytool_private *ctdata; +static inline double ct_now(void) +{ + struct timeval tv; + + gettimeofday(&tv, NULL); -#define CT_ERROR(_rc, _format, ...) \ + return tv.tv_sec + 0.000001 * tv.tv_usec; +} + +#define CT_ERROR(_rc, _format, ...) \ llapi_error(LLAPI_MSG_ERROR, _rc, \ - "%s[%ld]: "_format, \ - cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) -#define CT_DEBUG(_format, ...) \ + "%f %s[%ld]: "_format, \ + ct_now(), cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) + +#define CT_DEBUG(_format, ...) \ llapi_error(LLAPI_MSG_DEBUG | LLAPI_MSG_NO_ERRNO, 0, \ - "%s[%ld]: "_format, \ - cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) + "%f %s[%ld]: "_format, \ + ct_now(), cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) + #define CT_WARN(_format, ...) \ llapi_error(LLAPI_MSG_WARN | LLAPI_MSG_NO_ERRNO, 0, \ - "%s[%ld]: "_format, \ - cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) -#define CT_TRACE(_format, ...) \ + "%f %s[%ld]: "_format, \ + ct_now(), cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) + +#define CT_TRACE(_format, ...) \ llapi_error(LLAPI_MSG_INFO | LLAPI_MSG_NO_ERRNO, 0, \ - "%s[%ld]: "_format, \ - cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) -#define CT_PRINTF(_format, ...) \ - llapi_printf(LLAPI_MSG_NORMAL, \ - "%s[%ld]: "_format, \ - cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) + "%f %s[%ld]: "_format, \ + ct_now(), cmd_name, syscall(SYS_gettid), ## __VA_ARGS__) static void usage(const char *name, int rc) { @@ -230,11 +248,11 @@ static int ct_parseopts(int argc, char * const *argv) long_opts, NULL)) != -1) { switch (c) { case 'A': - if ((opt.o_archive_cnt >= MAX_ARCHIVE_CNT) || - (atoi(optarg) >= MAX_ARCHIVE_CNT)) { + if ((opt.o_archive_cnt >= LL_HSM_MAX_ARCHIVE) || + (atoi(optarg) >= LL_HSM_MAX_ARCHIVE)) { rc = -E2BIG; CT_ERROR(rc, "archive number must be less" - "than %zu", MAX_ARCHIVE_CNT); + "than %zu", LL_HSM_MAX_ARCHIVE); return rc; } opt.o_archive_id[opt.o_archive_cnt] = atoi(optarg); @@ -331,11 +349,12 @@ static int ct_parseopts(int argc, char * const *argv) } opt.o_mnt = argv[optind]; + opt.o_mnt_fd = -1; CT_TRACE("action=%d src=%s dst=%s mount_point=%s", opt.o_action, opt.o_src, opt.o_dst, opt.o_mnt); - if (!opt.o_dry_run && opt.o_hsm_root == NULL) { + if (opt.o_hsm_root == NULL) { rc = -EINVAL; CT_ERROR(rc, "must specify a root directory for the backend"); return rc; @@ -366,6 +385,9 @@ static int ct_mkdir_p(const char *path) int rc; ptr = strdup(path); + if (ptr == NULL) + return -errno; + saved = ptr; while (*ptr == '/') ptr++; @@ -485,45 +507,13 @@ static int ct_restore_stripe(const char *src, const char *dst, int dst_fd, rc = fsetxattr(dst_fd, XATTR_LUSTRE_LOV, lovea, lovea_size, XATTR_CREATE); if (rc < 0) { - CT_ERROR(errno, "cannot set lov EA on '%s'", dst); rc = -errno; + CT_ERROR(rc, "cannot set lov EA on '%s'", dst); } return rc; } -static void bandwidth_ctl_delay(int wsize) -{ - static unsigned long long tot_bytes; - static time_t start_time; - static time_t last_time; - time_t now = time(0); - double tot_time; - double excess; - unsigned int sleep_time; - - if (now > last_time + 5) { - tot_bytes = 0; - start_time = last_time = now; - } - - tot_bytes += wsize; - tot_time = now - start_time; - if (tot_time < 1) - tot_time = 1; - - excess = tot_bytes - tot_time * opt.o_bandwidth; - sleep_time = excess * 1000000 / opt.o_bandwidth; - if ((now - start_time) % 10 == 1) - CT_TRACE("bandwith control: excess=%E sleep for %dus", excess, - sleep_time); - - if (excess > 0) - usleep(sleep_time); - - last_time = now; -} - static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, const char *dst, int src_fd, int dst_fd, const struct hsm_action_item *hai, long hal_flags) @@ -534,11 +524,14 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, struct stat dst_st; char *buf = NULL; __u64 write_total = 0; - __u64 length; - time_t last_print_time = time(NULL); + __u64 length = hai->hai_extent.length; + time_t last_report_time; int rc = 0; - - CT_TRACE("going to copy data from '%s' to '%s'", src, dst); + double start_ct_now = ct_now(); + /* Bandwidth Control */ + time_t start_time; + time_t now; + time_t last_bw_print; if (fstat(src_fd, &src_st) < 0) { rc = -errno; @@ -552,6 +545,15 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, return rc; } + if (hai->hai_extent.offset > (__u64)src_st.st_size) { + rc = -EINVAL; + CT_ERROR(rc, "Trying to start reading past end (%ju > " + "%jd) of '%s' source file", + (uintmax_t)hai->hai_extent.offset, + (intmax_t)src_st.st_size, src); + return rc; + } + if (fstat(dst_fd, &dst_st) < 0) { rc = -errno; CT_ERROR(rc, "cannot stat '%s'", dst); @@ -564,17 +566,11 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, return rc; } - rc = lseek(src_fd, hai->hai_extent.offset, SEEK_SET); - if (rc < 0) { - rc = -errno; - CT_ERROR(rc, - "cannot seek for read to "LPU64" (len %jd) in '%s'", - hai->hai_extent.offset, (intmax_t)src_st.st_size, src); - return rc; - } - /* Don't read beyond a given extent */ - length = min(hai->hai_extent.length, src_st.st_size); + if (length > src_st.st_size - hai->hai_extent.offset) + length = src_st.st_size - hai->hai_extent.offset; + + start_time = last_bw_print = last_report_time = time(NULL); he.offset = offset; he.length = 0; @@ -595,7 +591,8 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, goto out; } - CT_DEBUG("Going to copy "LPU64" bytes %s -> %s\n", length, src, dst); + CT_TRACE("start copy of %ju bytes from '%s' to '%s'", + (uintmax_t)length, src, dst); while (write_total < length) { ssize_t rsize; @@ -624,14 +621,54 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, write_total += wsize; offset += wsize; - if (opt.o_bandwidth != 0) - /* sleep if needed, to honor bandwidth limits */ - bandwidth_ctl_delay(wsize); + now = time(NULL); + /* sleep if needed, to honor bandwidth limits */ + if (opt.o_bandwidth != 0) { + unsigned long long write_theory; + + write_theory = (now - start_time) * opt.o_bandwidth; - if (time(0) >= last_print_time + opt.o_report_int) { - last_print_time = time(0); - CT_TRACE("%%"LPU64" ", 100 * write_total / length); - he.length = write_total; + if (write_theory < write_total) { + unsigned long long excess; + struct timespec delay; + + excess = write_total - write_theory; + + delay.tv_sec = excess / opt.o_bandwidth; + delay.tv_nsec = (excess % opt.o_bandwidth) * + NSEC_PER_SEC / opt.o_bandwidth; + + if (now >= last_bw_print + opt.o_report_int) { + CT_TRACE("bandwith control: %lluB/s " + "excess=%llu sleep for " + "%lld.%09lds", + opt.o_bandwidth, excess, + (long long)delay.tv_sec, + delay.tv_nsec); + last_bw_print = now; + } + + do { + rc = nanosleep(&delay, &delay); + } while (rc < 0 && errno == EINTR); + if (rc < 0) { + CT_ERROR(errno, "delay for bandwidth " + "control failed to sleep: " + "residual=%lld.%09lds", + (long long)delay.tv_sec, + delay.tv_nsec); + rc = 0; + } + } + } + + now = time(NULL); + if (now >= last_report_time + opt.o_report_int) { + last_report_time = now; + CT_TRACE("%%%ju ", (uintmax_t)(100 * write_total / length)); + /* only give the length of the write since the last + * progress report */ + he.length = offset - he.offset; rc = llapi_hsm_action_progress(hcp, &he, length, 0); if (rc < 0) { /* Action has been canceled or something wrong @@ -640,6 +677,7 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src, " '%s'->'%s' failed", src, dst); goto out; } + he.offset = offset; } rc = 0; } @@ -668,6 +706,9 @@ out: if (buf != NULL) free(buf); + CT_TRACE("copied %ju bytes in %f seconds", + (uintmax_t)length, ct_now() - start_ct_now); + return rc; } @@ -800,8 +841,8 @@ static int ct_fini(struct hsm_copyaction_private **phcp, int rc; CT_TRACE("Action completed, notifying coordinator " - "cookie="LPX64", FID="DFID", hp_flags=%d err=%d", - hai->hai_cookie, PFID(&hai->hai_fid), + "cookie=%#jx, FID="DFID", hp_flags=%d err=%d", + (uintmax_t)hai->hai_cookie, PFID(&hai->hai_fid), hp_flags, -ct_rc); ct_path_lustre(lstr, sizeof(lstr), opt.o_mnt, &hai->hai_fid); @@ -819,8 +860,8 @@ static int ct_fini(struct hsm_copyaction_private **phcp, rc = llapi_hsm_action_end(phcp, &hai->hai_extent, hp_flags, abs(ct_rc)); if (rc == -ECANCELED) CT_ERROR(rc, "completed action on '%s' has been canceled: " - "cookie="LPX64", FID="DFID, lstr, hai->hai_cookie, - PFID(&hai->hai_fid)); + "cookie=%#jx, FID="DFID, lstr, + (uintmax_t)hai->hai_cookie, PFID(&hai->hai_fid)); else if (rc < 0) CT_ERROR(rc, "llapi_hsm_action_end() on '%s' failed", lstr); else @@ -856,7 +897,7 @@ static int ct_archive(const struct hsm_action_item *hai, const long hal_flags) if (hai->hai_extent.length == -1) { /* whole file, write it to tmp location and atomically * replace old archived file */ - strncat(dst, "_tmp", sizeof(dst) - strlen(dst) - 1); + strlcat(dst, "_tmp", sizeof(dst)); /* we cannot rely on the same test because ct_copy_data() * updates hai_extent.length */ rename_needed = true; @@ -877,12 +918,12 @@ static int ct_archive(const struct hsm_action_item *hai, const long hal_flags) src_fd = llapi_hsm_action_get_fd(hcp); if (src_fd < 0) { - rc = -errno; + rc = src_fd; CT_ERROR(rc, "cannot open '%s' for read", src); goto fini_major; } - open_flags = O_WRONLY | O_NOFOLLOW | O_NONBLOCK; + open_flags = O_WRONLY | O_NOFOLLOW; /* If extent is specified, don't truncate an old archived copy */ open_flags |= ((hai->hai_extent.length == -1) ? O_TRUNC : 0) | O_CREAT; @@ -1081,7 +1122,7 @@ static int ct_restore(const struct hsm_action_item *hai, const long hal_flags) int hp_flags = 0; int src_fd = -1; int dst_fd = -1; - int mdt_index = -1; /* Not implemented */ + int mdt_index = -1; int open_flags = 0; bool set_lovea; struct lu_fid dfid; @@ -1093,6 +1134,13 @@ static int ct_restore(const struct hsm_action_item *hai, const long hal_flags) /* build backend file name from released file FID */ ct_path_archive(src, sizeof(src), opt.o_hsm_root, &hai->hai_fid); + rc = llapi_get_mdt_index_by_fid(opt.o_mnt_fd, &hai->hai_fid, + &mdt_index); + if (rc < 0) { + CT_ERROR(rc, "cannot get mdt index "DFID"", + PFID(&hai->hai_fid)); + return rc; + } /* restore loads and sets the LOVEA w/o interpreting it to avoid * dependency on the structure format. */ rc = ct_load_stripe(src, lov_buf, &lov_size); @@ -1128,7 +1176,7 @@ static int ct_restore(const struct hsm_action_item *hai, const long hal_flags) goto fini; } - src_fd = open(src, O_RDONLY | O_NOATIME | O_NONBLOCK | O_NOFOLLOW); + src_fd = open(src, O_RDONLY | O_NOATIME | O_NOFOLLOW); if (src_fd < 0) { rc = -errno; CT_ERROR(rc, "cannot open '%s' for read", src); @@ -1136,6 +1184,11 @@ static int ct_restore(const struct hsm_action_item *hai, const long hal_flags) } dst_fd = llapi_hsm_action_get_fd(hcp); + if (dst_fd < 0) { + rc = dst_fd; + CT_ERROR(rc, "cannot open '%s' for write", dst); + goto fini; + } if (set_lovea) { /* the layout cannot be allocated through .fid so we have to @@ -1202,7 +1255,7 @@ static int ct_remove(const struct hsm_action_item *hai, const long hal_flags) goto fini; } - strncat(dst, ".lov", sizeof(dst) - strlen(dst) - 1); + strlcat(dst, ".lov", sizeof(dst)); rc = unlink(dst); if (rc < 0) { rc = -errno; @@ -1229,9 +1282,9 @@ static int ct_process_item(struct hsm_action_item *hai, const long hal_flags) int linkno = 0; sprintf(fid, DFID, PFID(&hai->hai_fid)); - CT_TRACE("'%s' action %s reclen %d, cookie="LPX64, + CT_TRACE("'%s' action %s reclen %d, cookie=%#jx", fid, hsm_copytool_action2name(hai->hai_action), - hai->hai_len, hai->hai_cookie); + hai->hai_len, (uintmax_t)hai->hai_cookie); rc = llapi_fid2path(opt.o_mnt, fid, path, sizeof(path), &recno, &linkno); if (rc < 0) @@ -1529,8 +1582,8 @@ static int ct_rebind_one(const lustre_fid *old_fid, const lustre_fid *new_fid) return -errno; } /* rename lov file */ - strncat(src, ".lov", sizeof(src) - strlen(src) - 1); - strncat(dst, ".lov", sizeof(dst) - strlen(dst) - 1); + strlcat(src, ".lov", sizeof(src)); + strlcat(dst, ".lov", sizeof(dst)); if (rename(src, dst)) CT_ERROR(errno, "cannot rename '%s' to '%s'", src, dst); @@ -1608,7 +1661,7 @@ static int ct_rebind_list(const char *list) if (line) free(line); - /* return 0 if all rebinds were sucessful */ + /* return 0 if all rebinds were successful */ CT_TRACE("%u lines read from '%s', %u rebind successful", nl, list, ok); return ok == nl ? 0 : -1; @@ -1690,24 +1743,31 @@ out: static int ct_max_sequence(void) { - int rc, i; - char path[PATH_MAX]; - __u64 seq = 0; - __u16 subseq; + int rc, i; + char path[PATH_MAX]; + __u64 seq = 0; + __u16 subseq; - strncpy(path, opt.o_hsm_root, sizeof(path)); + strlcpy(path, opt.o_hsm_root, sizeof(path)); /* FID sequence is stored in top-level directory names: * hsm_root/16bits (high weight)/16 bits/16 bits/16 bits (low weight). */ for (i = 0; i < 4; i++) { + size_t path_len; + rc = ct_dir_level_max(path, &subseq); if (rc != 0) return rc; seq |= ((__u64)subseq << ((3 - i) * 16)); - sprintf(path + strlen(path), "/%04x", subseq); + path_len = strlen(path); + rc = snprintf(path + path_len, sizeof(path) - path_len, + "/%04x", subseq); + if (rc >= (sizeof(path) - path_len)) + return -E2BIG; + path[sizeof(path) - 1] = '\0'; } - printf("max_sequence: "LPX64"\n", seq); + printf("max_sequence: %#jx\n", (uintmax_t)seq); return 0; } @@ -1720,13 +1780,18 @@ static void handler(int signal) * does successfully unmount and the mount is actually gone, but the * mtab entry remains. So this just makes mtab happier. */ llapi_hsm_copytool_unregister(&ctdata); + + /* Also remove fifo upon signal as during normal/error exit */ + if (opt.o_event_fifo != NULL) + llapi_hsm_unregister_event_fifo(opt.o_event_fifo); _exit(1); } /* Daemon waits for messages from the kernel; run it in the background. */ static int ct_run(void) { - int rc; + struct sigaction cleanup_sigaction; + int rc; if (opt.o_daemonize) { rc = daemon(1, 1); @@ -1748,21 +1813,25 @@ static int ct_run(void) llapi_error_callback_set(llapi_hsm_log_error); } - rc = llapi_hsm_copytool_register(&ctdata, opt.o_mnt, 0, - opt.o_archive_cnt, opt.o_archive_id); + rc = llapi_hsm_copytool_register(&ctdata, opt.o_mnt, + opt.o_archive_cnt, + opt.o_archive_id, 0); if (rc < 0) { CT_ERROR(rc, "cannot start copytool interface"); return rc; } - signal(SIGINT, handler); - signal(SIGTERM, handler); + memset(&cleanup_sigaction, 0, sizeof(cleanup_sigaction)); + cleanup_sigaction.sa_handler = handler; + sigemptyset(&cleanup_sigaction.sa_mask); + sigaction(SIGINT, &cleanup_sigaction, NULL); + sigaction(SIGTERM, &cleanup_sigaction, NULL); while (1) { - struct hsm_action_list *hal; - struct hsm_action_item *hai; - int msgsize; - int i = 0; + struct hsm_action_list *hal; + struct hsm_action_item *hai; + int msgsize; + int i = 0; CT_TRACE("waiting for message from kernel"); @@ -1770,8 +1839,6 @@ static int ct_run(void) if (rc == -ESHUTDOWN) { CT_TRACE("shutting down"); break; - } else if (rc == -EAGAIN) { - continue; /* msg not for us */ } else if (rc < 0) { CT_WARN("cannot receive action list: %s", strerror(-rc)); @@ -1847,6 +1914,14 @@ static int ct_setup(void) return rc; } + opt.o_mnt_fd = open(opt.o_mnt, O_RDONLY); + if (opt.o_mnt_fd < 0) { + rc = -errno; + CT_ERROR(rc, "cannot open mount point at '%s'", + opt.o_mnt); + return rc; + } + return rc; } @@ -1854,13 +1929,22 @@ static int ct_cleanup(void) { int rc; - if (arc_fd < 0) - return 0; + if (opt.o_mnt_fd >= 0) { + rc = close(opt.o_mnt_fd); + if (rc < 0) { + rc = -errno; + CT_ERROR(rc, "cannot close mount point"); + return rc; + } + } - if (close(arc_fd) < 0) { - rc = -errno; - CT_ERROR(rc, "cannot close archive root directory"); - return rc; + if (arc_fd >= 0) { + rc = close(arc_fd); + if (rc < 0) { + rc = -errno; + CT_ERROR(rc, "cannot close archive root directory"); + return rc; + } } return 0; @@ -1870,7 +1954,7 @@ int main(int argc, char **argv) { int rc; - strncpy(cmd_name, basename(argv[0]), sizeof(cmd_name)); + strlcpy(cmd_name, basename(argv[0]), sizeof(cmd_name)); rc = ct_parseopts(argc, argv); if (rc < 0) { CT_WARN("try '%s --help' for more information", cmd_name);