--- libmultipath/config.c | 4 ++++ libmultipath/config.h | 1 + libmultipath/configure.c | 5 ++--- libmultipath/dict.c | 33 +++++++++++++++++++++++++++++++++ libmultipath/util.c | 30 ++++++++++++++++++++++++++++++ libmultipath/util.h | 1 + libmultipath/wwids.c | 21 ++++++++++++++------- multipathd/main.c | 3 +-- 8 files changed, 86 insertions(+), 12 deletions(-) Index: multipath-tools-130222/libmultipath/config.h =================================================================== --- multipath-tools-130222.orig/libmultipath/config.h +++ multipath-tools-130222/libmultipath/config.h @@ -131,6 +131,7 @@ struct config { int detect_prio; int force_sync; int deferred_remove; + int ignore_new_boot_devs; unsigned int version[3]; char * dev; Index: multipath-tools-130222/libmultipath/configure.c =================================================================== --- multipath-tools-130222.orig/libmultipath/configure.c +++ multipath-tools-130222/libmultipath/configure.c @@ -775,9 +775,8 @@ coalesce_paths (struct vectors * vecs, v if (refwwid && strncmp(pp1->wwid, refwwid, WWID_SIZE)) continue; - /* If find_multipaths was selected check if the path is valid */ - if (conf->find_multipaths && !refwwid && - !should_multipath(pp1, pathvec)) { + /* check if the path is valid */ + if (!refwwid && !should_multipath(pp1, pathvec)) { orphan_path(pp1); continue; } Index: multipath-tools-130222/libmultipath/wwids.c =================================================================== --- multipath-tools-130222.orig/libmultipath/wwids.c +++ multipath-tools-130222/libmultipath/wwids.c @@ -15,6 +15,7 @@ #include "wwids.h" #include "defaults.h" #include "config.h" +#include "util.h" /* * Copyright (c) 2010 Benjamin Marzinski, Redhat @@ -268,15 +269,21 @@ should_multipath(struct path *pp1, vecto { int i; struct path *pp2; + int ignore_new_devs = (conf->ignore_new_boot_devs && in_initrd()); + + if (!conf->find_multipaths && !ignore_new_devs) + return 1; condlog(4, "checking if %s should be multipathed", pp1->dev); - vector_foreach_slot(pathvec, pp2, i) { - if (pp1->dev == pp2->dev) - continue; - if (strncmp(pp1->wwid, pp2->wwid, WWID_SIZE) == 0) { - condlog(3, "found multiple paths with wwid %s, " - "multipathing %s", pp1->wwid, pp1->dev); - return 1; + if (!ignore_new_devs) { + vector_foreach_slot(pathvec, pp2, i) { + if (pp1->dev == pp2->dev) + continue; + if (strncmp(pp1->wwid, pp2->wwid, WWID_SIZE) == 0) { + condlog(3, "found multiple paths with wwid %s, " + "multipathing %s", pp1->wwid, pp1->dev); + return 1; + } } } if (check_wwids_file(pp1->wwid, 0) < 0) { Index: multipath-tools-130222/multipathd/main.c =================================================================== --- multipath-tools-130222.orig/multipathd/main.c +++ multipath-tools-130222/multipathd/main.c @@ -503,8 +503,7 @@ rescan: return 1; } - if (conf->find_multipaths && - !should_multipath(pp, vecs->pathvec)) { + if (!should_multipath(pp, vecs->pathvec)) { orphan_path(pp); return 0; } Index: multipath-tools-130222/libmultipath/config.c =================================================================== --- multipath-tools-130222.orig/libmultipath/config.c +++ multipath-tools-130222/libmultipath/config.c @@ -622,6 +622,7 @@ load_config (char * file, struct udev *u conf->deferred_remove = DEFAULT_DEFERRED_REMOVE; conf->hw_strmatch = 0; conf->force_sync = 0; + conf->ignore_new_boot_devs = 0; /* * preload default hwtable @@ -732,6 +733,9 @@ load_config (char * file, struct udev *u !conf->wwids_file) goto out; + if (conf->ignore_new_boot_devs) + in_initrd(); + return 0; out: free_config(conf); Index: multipath-tools-130222/libmultipath/dict.c =================================================================== --- multipath-tools-130222.orig/libmultipath/dict.c +++ multipath-tools-130222/libmultipath/dict.c @@ -761,6 +761,29 @@ def_deferred_remove_handler(vector strve return 0; } +static int +def_ignore_new_boot_devs_handler(vector strvec) +{ + char * buff; + + buff = set_value(strvec); + + if (!buff) + return 1; + + if ((strlen(buff) == 2 && !strcmp(buff, "no")) || + (strlen(buff) == 1 && !strcmp(buff, "0"))) + conf->ignore_new_boot_devs = 0; + else if ((strlen(buff) == 3 && !strcmp(buff, "yes")) || + (strlen(buff) == 1 && !strcmp(buff, "1"))) + conf->ignore_new_boot_devs = 1; + else + conf->ignore_new_boot_devs = 0; + + FREE(buff); + return 0; +} + /* * blacklist block handlers */ @@ -3011,6 +3034,15 @@ snprint_def_deferred_remove(char * buff, } static int +snprint_def_ignore_new_boot_devs(char * buff, int len, void * data) +{ + if (conf->ignore_new_boot_devs == 1) + return snprintf(buff, len, "yes"); + else + return snprintf(buff, len, "no"); +} + +static int snprint_ble_simple (char * buff, int len, void * data) { struct blentry * ble = (struct blentry *)data; @@ -3080,6 +3112,7 @@ init_keywords(void) install_keyword("hw_str_match", &def_hw_strmatch_handler, &snprint_def_hw_strmatch); install_keyword("force_sync", &def_force_sync_handler, &snprint_def_force_sync); install_keyword("deferred_remove", &def_deferred_remove_handler, &snprint_def_deferred_remove); + install_keyword("ignore_new_boot_devs", &def_ignore_new_boot_devs_handler, &snprint_def_ignore_new_boot_devs); __deprecated install_keyword("default_selector", &def_selector_handler, NULL); __deprecated install_keyword("default_path_grouping_policy", &def_pgpolicy_handler, NULL); __deprecated install_keyword("default_uid_attribute", &def_uid_attribute_handler, NULL); Index: multipath-tools-130222/libmultipath/util.c =================================================================== --- multipath-tools-130222.orig/libmultipath/util.c +++ multipath-tools-130222/libmultipath/util.c @@ -3,6 +3,8 @@ #include #include #include +#include +#include #include "debug.h" #include "memory.h" @@ -267,3 +269,31 @@ dev_t parse_devt(const char *dev_t) return makedev(maj, min); } + +/* This define was taken from systemd. src/shared/macro.h */ +#define F_TYPE_EQUAL(a, b) (a == (typeof(a)) b) + +/* This function was taken from systemd. src/shared/util.c */ +int in_initrd(void) { + static int saved = -1; + struct statfs s; + + if (saved >= 0) + return saved; + + /* We make two checks here: + * + * 1. the flag file /etc/initrd-release must exist + * 2. the root file system must be a memory file system + * The second check is extra paranoia, since misdetecting an + * initrd can have bad bad consequences due the initrd + * emptying when transititioning to the main systemd. + */ + + saved = access("/etc/initrd-release", F_OK) >= 0 && + statfs("/", &s) >= 0 && + (F_TYPE_EQUAL(s.f_type, TMPFS_MAGIC) || + F_TYPE_EQUAL(s.f_type, RAMFS_MAGIC)); + + return saved; +} Index: multipath-tools-130222/libmultipath/util.h =================================================================== --- multipath-tools-130222.orig/libmultipath/util.h +++ multipath-tools-130222/libmultipath/util.h @@ -11,6 +11,7 @@ void remove_trailing_chars(char *path, c int devt2devname (char *, int, char *); dev_t parse_devt(const char *dev_t); char *convert_dev(char *dev, int is_path_device); +int in_initrd(void); #define safe_sprintf(var, format, args...) \ snprintf(var, sizeof(var), format, ##args) >= sizeof(var)