diff options
Diffstat (limited to '0024-RH-multipath-wipe-wwids.patch')
| -rw-r--r-- | 0024-RH-multipath-wipe-wwids.patch | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/0024-RH-multipath-wipe-wwids.patch b/0024-RH-multipath-wipe-wwids.patch new file mode 100644 index 0000000..b91836c --- /dev/null +++ b/0024-RH-multipath-wipe-wwids.patch @@ -0,0 +1,164 @@ +--- + libmultipath/wwids.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ + libmultipath/wwids.h | 1 + + multipath/main.c | 29 +++++++++++++++++++++++++++-- + multipath/multipath.8 | 5 ++++- + 4 files changed, 76 insertions(+), 3 deletions(-) + +Index: multipath-tools-130222/libmultipath/wwids.c +=================================================================== +--- multipath-tools-130222.orig/libmultipath/wwids.c ++++ multipath-tools-130222/libmultipath/wwids.c +@@ -82,6 +82,50 @@ write_out_wwid(int fd, char *wwid) { + } + + int ++replace_wwids(vector mp) ++{ ++ int i, fd, can_write; ++ struct multipath * mpp; ++ size_t len; ++ int ret = -1; ++ ++ fd = open_file(conf->wwids_file, &can_write, WWIDS_FILE_HEADER); ++ if (fd < 0) ++ goto out; ++ if (!can_write) { ++ condlog(0, "cannot replace wwids. wwids file is read-only"); ++ goto out_file; ++ } ++ if (ftruncate(fd, 0) < 0) { ++ condlog(0, "cannot truncate wwids file : %s", strerror(errno)); ++ goto out_file; ++ } ++ len = strlen(WWIDS_FILE_HEADER); ++ if (write_all(fd, WWIDS_FILE_HEADER, len) != len) { ++ condlog(0, "Can't write wwid file header : %s", ++ strerror(errno)); ++ /* cleanup partially written header */ ++ if (ftruncate(fd, 0) < 0) ++ condlog(0, "Cannot truncate header : %s", ++ strerror(errno)); ++ goto out_file; ++ } ++ if (!mp || !mp->allocated) { ++ ret = 0; ++ goto out_file; ++ } ++ vector_foreach_slot(mp, mpp, i) { ++ if (write_out_wwid(fd, mpp->wwid) < 0) ++ goto out_file; ++ } ++ ret = 0; ++out_file: ++ close(fd); ++out: ++ return ret; ++} ++ ++int + do_remove_wwid(int fd, char *str) { + char buf[4097]; + char *ptr; +Index: multipath-tools-130222/libmultipath/wwids.h +=================================================================== +--- multipath-tools-130222.orig/libmultipath/wwids.h ++++ multipath-tools-130222/libmultipath/wwids.h +@@ -16,5 +16,6 @@ int should_multipath(struct path *pp, ve + int remember_wwid(char *wwid); + int check_wwids_file(char *wwid, int write_wwid); + int remove_wwid(char *wwid); ++int replace_wwids(vector mp); + + #endif /* _WWIDS_H */ +Index: multipath-tools-130222/multipath/main.c +=================================================================== +--- multipath-tools-130222.orig/multipath/main.c ++++ multipath-tools-130222/multipath/main.c +@@ -83,7 +83,7 @@ usage (char * progname) + { + fprintf (stderr, VERSION_STRING); + fprintf (stderr, "Usage:\n"); +- fprintf (stderr, " %s [-c|-w] [-d] [-r] [-v lvl] [-p pol] [-b fil] [-q] [dev]\n", progname); ++ fprintf (stderr, " %s [-c|-w|-W] [-d] [-r] [-v lvl] [-p pol] [-b fil] [-q] [dev]\n", progname); + fprintf (stderr, " %s -l|-ll|-f [-v lvl] [-b fil] [dev]\n", progname); + fprintf (stderr, " %s -F [-v lvl]\n", progname); + fprintf (stderr, " %s -t\n", progname); +@@ -105,6 +105,7 @@ usage (char * progname) + " -p policy failover|multibus|group_by_serial|group_by_prio\n" \ + " -b fil bindings file location\n" \ + " -w remove a device from the wwids file\n" \ ++ " -W reset the wwids file include only the current devices\n" \ + " -p pol force all maps to specified path grouping policy :\n" \ + " . failover one path per priority group\n" \ + " . multibus all paths in one priority group\n" \ +@@ -450,7 +451,7 @@ main (int argc, char *argv[]) + if (dm_prereq()) + exit(1); + +- while ((arg = getopt(argc, argv, ":dchl::FfM:v:p:b:Brtqw")) != EOF ) { ++ while ((arg = getopt(argc, argv, ":dchl::FfM:v:p:b:BrtqwW")) != EOF ) { + switch(arg) { + case 1: printf("optarg : %s\n",optarg); + break; +@@ -518,6 +519,9 @@ main (int argc, char *argv[]) + case 'w': + conf->dry_run = 3; + break; ++ case 'W': ++ conf->dry_run = 4; ++ break; + case ':': + fprintf(stderr, "Missing option argument\n"); + usage(argv[0]); +@@ -573,6 +577,27 @@ main (int argc, char *argv[]) + condlog(0, "the -w option requires a device"); + goto out; + } ++ if (conf->dry_run == 4) { ++ struct multipath * mpp; ++ int i; ++ vector curmp; ++ ++ curmp = vector_alloc(); ++ if (!curmp) { ++ condlog(0, "can't allocate memory for mp list"); ++ goto out; ++ } ++ if (dm_get_maps(curmp) == 0) ++ r = replace_wwids(curmp); ++ if (r == 0) ++ printf("successfully reset wwids\n"); ++ vector_foreach_slot_backwards(curmp, mpp, i) { ++ vector_del_slot(curmp, i); ++ free_multipath(mpp, KEEP_PATHS); ++ } ++ vector_free(curmp); ++ goto out; ++ } + if (conf->remove == FLUSH_ONE) { + if (conf->dev_type == DEV_DEVMAP) { + r = dm_suspend_and_flush_map(conf->dev); +Index: multipath-tools-130222/multipath/multipath.8 +=================================================================== +--- multipath-tools-130222.orig/multipath/multipath.8 ++++ multipath-tools-130222/multipath/multipath.8 +@@ -8,7 +8,7 @@ multipath \- Device mapper target autoco + .RB [\| \-b\ \c + .IR bindings_file \|] + .RB [\| \-d \|] +-.RB [\| \-h | \-l | \-ll | \-f | \-t | \-F | \-B | \-c | \-q | \|-r | \-w \|] ++.RB [\| \-h | \-l | \-ll | \-f | \-t | \-F | \-B | \-c | \-q | \|-r | \-w | \-W \|] + .RB [\| \-p\ \c + .BR failover | multibus | group_by_serial | group_by_prio | group_by_node_name \|] + .RB [\| device \|] +@@ -71,6 +71,9 @@ allow device tables with queue_if_no_pat + .B \-w + remove the wwid for the specified device from the wwids file + .TP ++.B \-W ++reset the wwids file to only include the current multipath devices ++.TP + .BI \-p " policy" + force new maps to use the specified policy: + .RS 1.2i |