util: Introduce md_get_array_info()
Remove most direct ioctl calls for GET_ARRAY_INFO, except for one, which will be addressed in the next patch. This is the start of the effort to clean up the use of ioctl calls and introduce a more structured API, which will use sysfs and fall back to ioctl for backup. Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
This commit is contained in:
parent
6ebf34e6bd
commit
9cd39f0155
5
Create.c
5
Create.c
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@ -156,8 +156,7 @@ int Create(struct supertype *st, char *mddev,
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memset(&inf, 0, sizeof(inf));
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memset(&inf, 0, sizeof(inf));
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fd = open(devlist->devname, O_RDONLY);
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fd = open(devlist->devname, O_RDONLY);
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if (fd >= 0 &&
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if (fd >= 0 &&
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ioctl(fd, GET_ARRAY_INFO, &inf) == 0 &&
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md_get_array_info(fd, &inf) == 0 && inf.raid_disks == 0) {
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inf.raid_disks == 0) {
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/* yep, looks like a container */
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/* yep, looks like a container */
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if (st) {
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if (st) {
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rv = st->ss->load_container(st, fd,
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rv = st->ss->load_container(st, fd,
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@ -634,7 +633,7 @@ int Create(struct supertype *st, char *mddev,
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} else {
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} else {
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mdu_array_info_t inf;
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mdu_array_info_t inf;
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memset(&inf, 0, sizeof(inf));
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memset(&inf, 0, sizeof(inf));
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ioctl(mdfd, GET_ARRAY_INFO, &inf);
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md_get_array_info(mdfd, &inf);
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if (inf.working_disks != 0) {
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if (inf.working_disks != 0) {
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pr_err("another array by this name is already running.\n");
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pr_err("another array by this name is already running.\n");
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goto abort_locked;
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goto abort_locked;
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2
Detail.c
2
Detail.c
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@ -107,7 +107,7 @@ int Detail(char *dev, struct context *c)
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external = (sra != NULL && sra->array.major_version == -1
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external = (sra != NULL && sra->array.major_version == -1
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&& sra->array.minor_version == -2);
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&& sra->array.minor_version == -2);
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st = super_by_fd(fd, &subarray);
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st = super_by_fd(fd, &subarray);
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if (ioctl(fd, GET_ARRAY_INFO, &array) == 0) {
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if (md_get_array_info(fd, &array) == 0) {
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inactive = 0;
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inactive = 0;
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} else if (errno == ENODEV && sra) {
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} else if (errno == ENODEV && sra) {
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if (sra->array.major_version == -1 &&
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if (sra->array.major_version == -1 &&
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31
Grow.c
31
Grow.c
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@ -115,7 +115,7 @@ int Grow_Add_device(char *devname, int fd, char *newdev)
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struct supertype *st = NULL;
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struct supertype *st = NULL;
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char *subarray = NULL;
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char *subarray = NULL;
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if (ioctl(fd, GET_ARRAY_INFO, &info.array) < 0) {
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if (md_get_array_info(fd, &info.array) < 0) {
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pr_err("cannot get array info for %s\n", devname);
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pr_err("cannot get array info for %s\n", devname);
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return 1;
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return 1;
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}
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}
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@ -221,7 +221,7 @@ int Grow_Add_device(char *devname, int fd, char *newdev)
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* Now go through and update all superblocks
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* Now go through and update all superblocks
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*/
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*/
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if (ioctl(fd, GET_ARRAY_INFO, &info.array) < 0) {
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if (md_get_array_info(fd, &info.array) < 0) {
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pr_err("cannot get array info for %s\n", devname);
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pr_err("cannot get array info for %s\n", devname);
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return 1;
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return 1;
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}
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}
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@ -328,7 +328,7 @@ int Grow_addbitmap(char *devname, int fd, struct context *c, struct shape *s)
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devname, bmf.pathname);
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devname, bmf.pathname);
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return 1;
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return 1;
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}
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}
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0) {
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if (md_get_array_info(fd, &array) != 0) {
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pr_err("cannot get array status for %s\n", devname);
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pr_err("cannot get array status for %s\n", devname);
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return 1;
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return 1;
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}
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}
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@ -1784,7 +1784,7 @@ int Grow_reshape(char *devname, int fd,
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struct mdinfo info;
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struct mdinfo info;
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struct mdinfo *sra;
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struct mdinfo *sra;
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if (ioctl(fd, GET_ARRAY_INFO, &array) < 0) {
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if (md_get_array_info(fd, &array) < 0) {
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pr_err("%s is not an active md array - aborting\n",
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pr_err("%s is not an active md array - aborting\n",
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devname);
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devname);
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return 1;
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return 1;
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@ -2030,7 +2030,7 @@ int Grow_reshape(char *devname, int fd,
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/* get array parameters after takeover
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/* get array parameters after takeover
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* to change one parameter at time only
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* to change one parameter at time only
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*/
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*/
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rv = ioctl(fd, GET_ARRAY_INFO, &array);
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rv = md_get_array_info(fd, &array);
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}
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}
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}
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}
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/* make sure mdmon is
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/* make sure mdmon is
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@ -2072,7 +2072,7 @@ int Grow_reshape(char *devname, int fd,
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/* go back to raid0, drop parity disk
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/* go back to raid0, drop parity disk
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*/
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*/
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sysfs_set_str(sra, NULL, "level", "raid0");
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sysfs_set_str(sra, NULL, "level", "raid0");
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ioctl(fd, GET_ARRAY_INFO, &array);
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md_get_array_info(fd, &array);
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}
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}
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size_change_error:
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size_change_error:
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@ -2101,7 +2101,7 @@ size_change_error:
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sysfs_set_str(sra, NULL, "resync_start", "none") < 0)
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sysfs_set_str(sra, NULL, "resync_start", "none") < 0)
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pr_err("--assume-clean not supported with --grow on this kernel\n");
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pr_err("--assume-clean not supported with --grow on this kernel\n");
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}
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}
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ioctl(fd, GET_ARRAY_INFO, &array);
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md_get_array_info(fd, &array);
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s->size = get_component_size(fd)/2;
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s->size = get_component_size(fd)/2;
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if (s->size == 0)
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if (s->size == 0)
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s->size = array.size;
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s->size = array.size;
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@ -2267,7 +2267,7 @@ size_change_error:
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rv =1 ;
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rv =1 ;
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}
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}
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if (s->layout_str) {
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if (s->layout_str) {
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0) {
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if (md_get_array_info(fd, &array) != 0) {
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dprintf("Cannot get array information.\n");
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dprintf("Cannot get array information.\n");
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goto release;
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goto release;
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}
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}
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@ -2830,7 +2830,7 @@ static int impose_reshape(struct mdinfo *sra,
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* reshape->after.data_disks);
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* reshape->after.data_disks);
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}
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}
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ioctl(fd, GET_ARRAY_INFO, &array);
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md_get_array_info(fd, &array);
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if (info->array.chunk_size == info->new_chunk &&
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if (info->array.chunk_size == info->new_chunk &&
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reshape->before.layout == reshape->after.layout &&
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reshape->before.layout == reshape->after.layout &&
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st->ss->external == 0) {
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st->ss->external == 0) {
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@ -2885,7 +2885,7 @@ static int impose_level(int fd, int level, char *devname, int verbose)
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struct mdinfo info;
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struct mdinfo info;
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sysfs_init(&info, fd, NULL);
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sysfs_init(&info, fd, NULL);
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ioctl(fd, GET_ARRAY_INFO, &array);
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md_get_array_info(fd, &array);
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if (level == 0 &&
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if (level == 0 &&
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(array.level >= 4 && array.level <= 6)) {
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(array.level >= 4 && array.level <= 6)) {
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/* To convert to RAID0 we need to fail and
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/* To convert to RAID0 we need to fail and
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@ -2921,7 +2921,7 @@ static int impose_level(int fd, int level, char *devname, int verbose)
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makedev(disk.major, disk.minor));
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makedev(disk.major, disk.minor));
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}
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}
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/* Now fail anything left */
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/* Now fail anything left */
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ioctl(fd, GET_ARRAY_INFO, &array);
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md_get_array_info(fd, &array);
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for (d = 0, found = 0;
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for (d = 0, found = 0;
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d < MAX_DISKS && found < array.nr_disks;
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d < MAX_DISKS && found < array.nr_disks;
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d++) {
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d++) {
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@ -3042,7 +3042,7 @@ static int reshape_array(char *container, int fd, char *devname,
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/* when reshaping a RAID0, the component_size might be zero.
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/* when reshaping a RAID0, the component_size might be zero.
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* So try to fix that up.
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* So try to fix that up.
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*/
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*/
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0) {
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if (md_get_array_info(fd, &array) != 0) {
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dprintf("Cannot get array information.\n");
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dprintf("Cannot get array information.\n");
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goto release;
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goto release;
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}
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}
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@ -3230,7 +3230,7 @@ static int reshape_array(char *container, int fd, char *devname,
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* some more changes: layout, raid_disks, chunk_size
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* some more changes: layout, raid_disks, chunk_size
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*/
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*/
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/* read current array info */
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/* read current array info */
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0) {
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if (md_get_array_info(fd, &array) != 0) {
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dprintf("Cannot get array information.\n");
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dprintf("Cannot get array information.\n");
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goto release;
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goto release;
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}
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}
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@ -4994,8 +4994,9 @@ int Grow_continue_command(char *devname, int fd,
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int d;
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int d;
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int cnt = 5;
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int cnt = 5;
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dprintf_cont("native array (%s)\n", devname);
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dprintf_cont("native array (%s)\n", devname);
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if (ioctl(fd, GET_ARRAY_INFO, &array.array) < 0) {
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if (md_get_array_info(fd, &array.array) < 0) {
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pr_err("%s is not an active md array - aborting\n", devname);
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pr_err("%s is not an active md array - aborting\n",
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devname);
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ret_val = 1;
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ret_val = 1;
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goto Grow_continue_command_exit;
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goto Grow_continue_command_exit;
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}
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}
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@ -398,7 +398,7 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
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&& ! policy_action_allows(policy, st->ss->name,
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&& ! policy_action_allows(policy, st->ss->name,
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act_re_add)
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act_re_add)
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&& c->runstop < 1) {
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&& c->runstop < 1) {
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if (ioctl(mdfd, GET_ARRAY_INFO, &ainf) == 0) {
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if (md_get_array_info(mdfd, &ainf) == 0) {
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pr_err("not adding %s to active array (without --run) %s\n",
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pr_err("not adding %s to active array (without --run) %s\n",
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devname, chosen_name);
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devname, chosen_name);
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rv = 2;
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rv = 2;
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@ -549,7 +549,7 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
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/* + add any bitmap file */
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/* + add any bitmap file */
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/* + start the array (auto-readonly). */
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/* + start the array (auto-readonly). */
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if (ioctl(mdfd, GET_ARRAY_INFO, &ainf) == 0) {
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if (md_get_array_info(mdfd, &ainf) == 0) {
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if (c->export) {
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if (c->export) {
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printf("MD_STARTED=already\n");
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printf("MD_STARTED=already\n");
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} else if (c->verbose >= 0)
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} else if (c->verbose >= 0)
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@ -664,7 +664,7 @@ static void find_reject(int mdfd, struct supertype *st, struct mdinfo *sra,
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struct mdinfo *d;
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struct mdinfo *d;
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mdu_array_info_t ra;
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mdu_array_info_t ra;
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if (ioctl(mdfd, GET_ARRAY_INFO, &ra) == 0)
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if (md_get_array_info(mdfd, &ra) == 0)
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return; /* not safe to remove from active arrays
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return; /* not safe to remove from active arrays
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* without thinking more */
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* without thinking more */
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@ -837,7 +837,7 @@ static int container_members_max_degradation(struct map_ent *map, struct map_ent
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if (afd < 0)
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if (afd < 0)
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continue;
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continue;
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/* most accurate information regarding array degradation */
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/* most accurate information regarding array degradation */
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if (ioctl(afd, GET_ARRAY_INFO, &array) >= 0) {
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if (md_get_array_info(afd, &array) >= 0) {
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int degraded = array.raid_disks - array.active_disks -
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int degraded = array.raid_disks - array.active_disks -
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array.spare_disks;
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array.spare_disks;
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if (degraded > max_degraded)
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if (degraded > max_degraded)
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@ -1390,8 +1390,7 @@ restart:
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rv = 1;
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rv = 1;
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continue;
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continue;
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}
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}
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if (ioctl(mdfd, GET_ARRAY_INFO, &array) == 0 ||
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if (md_get_array_info(mdfd, &array) == 0 || errno != ENODEV) {
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errno != ENODEV) {
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close(mdfd);
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close(mdfd);
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continue;
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continue;
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}
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}
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13
Manage.c
13
Manage.c
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@ -95,7 +95,7 @@ int Manage_ro(char *devname, int fd, int readonly)
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goto out;
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goto out;
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}
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}
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#endif
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#endif
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if (ioctl(fd, GET_ARRAY_INFO, &array)) {
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if (md_get_array_info(fd, &array)) {
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pr_err("%s does not appear to be active.\n",
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pr_err("%s does not appear to be active.\n",
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devname);
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devname);
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rv = 1;
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rv = 1;
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@ -539,7 +539,7 @@ static void add_faulty(struct mddev_dev *dv, int fd, char disp)
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int remaining_disks;
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int remaining_disks;
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int i;
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int i;
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0)
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if (md_get_array_info(fd, &array) != 0)
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return;
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return;
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remaining_disks = array.nr_disks;
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remaining_disks = array.nr_disks;
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@ -565,7 +565,7 @@ static void add_detached(struct mddev_dev *dv, int fd, char disp)
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int remaining_disks;
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int remaining_disks;
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int i;
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int i;
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0)
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if (md_get_array_info(fd, &array) != 0)
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return;
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return;
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remaining_disks = array.nr_disks;
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remaining_disks = array.nr_disks;
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@ -602,7 +602,7 @@ static void add_set(struct mddev_dev *dv, int fd, char set_char)
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int copies, set;
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int copies, set;
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int i;
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int i;
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if (ioctl(fd, GET_ARRAY_INFO, &array) != 0)
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if (md_get_array_info(fd, &array) != 0)
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return;
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return;
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if (array.level != 10)
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if (array.level != 10)
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return;
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return;
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@ -1383,9 +1383,8 @@ int Manage_subdevs(char *devname, int fd,
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int busy = 0;
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int busy = 0;
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int raid_slot = -1;
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int raid_slot = -1;
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if (ioctl(fd, GET_ARRAY_INFO, &array)) {
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if (md_get_array_info(fd, &array)) {
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pr_err("Cannot get array info for %s\n",
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pr_err("Cannot get array info for %s\n", devname);
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devname);
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goto abort;
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goto abort;
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}
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}
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sysfs_init(&info, fd, NULL);
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sysfs_init(&info, fd, NULL);
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|
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@ -497,7 +497,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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return 0;
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return 0;
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}
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}
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
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if (md_get_array_info(fd, &array) < 0) {
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if (!st->err)
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if (!st->err)
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alert("DeviceDisappeared", dev, NULL, ainfo);
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alert("DeviceDisappeared", dev, NULL, ainfo);
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st->err++;
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st->err++;
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@ -709,9 +709,10 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
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st->devname = xstrdup(name);
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st->devname = xstrdup(name);
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if ((fd = open(st->devname, O_RDONLY)) < 0 ||
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if ((fd = open(st->devname, O_RDONLY)) < 0 ||
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ioctl(fd, GET_ARRAY_INFO, &array)< 0) {
|
md_get_array_info(fd, &array) < 0) {
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/* no such array */
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/* no such array */
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if (fd >=0) close(fd);
|
if (fd >= 0)
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|
close(fd);
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put_md_name(st->devname);
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put_md_name(st->devname);
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free(st->devname);
|
free(st->devname);
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if (st->metadata) {
|
if (st->metadata) {
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|
7
Query.c
7
Query.c
|
@ -53,9 +53,10 @@ int Query(char *dev)
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}
|
}
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|
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||||||
vers = md_get_version(fd);
|
vers = md_get_version(fd);
|
||||||
if (ioctl(fd, GET_ARRAY_INFO, &array)<0)
|
if (md_get_array_info(fd, &array) < 0)
|
||||||
ioctlerr = errno;
|
ioctlerr = errno;
|
||||||
else ioctlerr = 0;
|
else
|
||||||
|
ioctlerr = 0;
|
||||||
|
|
||||||
fstat(fd, &stb);
|
fstat(fd, &stb);
|
||||||
|
|
||||||
|
@ -100,7 +101,7 @@ int Query(char *dev)
|
||||||
activity = "undetected";
|
activity = "undetected";
|
||||||
if (mddev && (fd = open(mddev, O_RDONLY))>=0) {
|
if (mddev && (fd = open(mddev, O_RDONLY))>=0) {
|
||||||
if (md_get_version(fd) >= 9000 &&
|
if (md_get_version(fd) >= 9000 &&
|
||||||
ioctl(fd, GET_ARRAY_INFO, &array)>= 0) {
|
md_get_array_info(fd, &array) >= 0) {
|
||||||
if (ioctl(fd, GET_DISK_INFO, &disc) >= 0 &&
|
if (ioctl(fd, GET_DISK_INFO, &disc) >= 0 &&
|
||||||
makedev((unsigned)disc.major,(unsigned)disc.minor) == stb.st_rdev)
|
makedev((unsigned)disc.major,(unsigned)disc.minor) == stb.st_rdev)
|
||||||
activity = "active";
|
activity = "active";
|
||||||
|
|
1
mdadm.h
1
mdadm.h
|
@ -1405,6 +1405,7 @@ extern int Restore_metadata(char *dev, char *dir, struct context *c,
|
||||||
struct supertype *st, int only);
|
struct supertype *st, int only);
|
||||||
|
|
||||||
extern int md_get_version(int fd);
|
extern int md_get_version(int fd);
|
||||||
|
int md_get_array_info(int fd, struct mdu_array_info_s *array);
|
||||||
extern int get_linux_version(void);
|
extern int get_linux_version(void);
|
||||||
extern int mdadm_version(char *version);
|
extern int mdadm_version(char *version);
|
||||||
extern unsigned long long parse_size(char *size);
|
extern unsigned long long parse_size(char *size);
|
||||||
|
|
|
@ -67,7 +67,7 @@ int main(int argc, char *argv[])
|
||||||
if (strcasecmp(array_list->devname, "<ignore>") == 0)
|
if (strcasecmp(array_list->devname, "<ignore>") == 0)
|
||||||
continue;
|
continue;
|
||||||
mdfd = open_mddev(array_list->devname, 0);
|
mdfd = open_mddev(array_list->devname, 0);
|
||||||
if (mdfd >= 0 && ioctl(mdfd, GET_ARRAY_INFO, &array) == 0) {
|
if (mdfd >= 0 && md_get_array_info(mdfd, &array) == 0) {
|
||||||
rv |= Manage_ro(array_list->devname, mdfd, -1); /* make it readwrite */
|
rv |= Manage_ro(array_list->devname, mdfd, -1); /* make it readwrite */
|
||||||
continue;
|
continue;
|
||||||
}
|
}
|
||||||
|
|
14
util.c
14
util.c
|
@ -211,6 +211,15 @@ int cluster_release_dlmlock(int lockid)
|
||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Get array info from the kernel. Longer term we want to deprecate the
|
||||||
|
* ioctl and get it from sysfs.
|
||||||
|
*/
|
||||||
|
int md_get_array_info(int fd, struct mdu_array_info_s *array)
|
||||||
|
{
|
||||||
|
return ioctl(fd, GET_ARRAY_INFO, array);
|
||||||
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Parse a 128 bit uuid in 4 integers
|
* Parse a 128 bit uuid in 4 integers
|
||||||
* format is 32 hexx nibbles with options :.<space> separator
|
* format is 32 hexx nibbles with options :.<space> separator
|
||||||
|
@ -539,8 +548,7 @@ int enough_fd(int fd)
|
||||||
int i, rv;
|
int i, rv;
|
||||||
char *avail;
|
char *avail;
|
||||||
|
|
||||||
if (ioctl(fd, GET_ARRAY_INFO, &array) != 0 ||
|
if (md_get_array_info(fd, &array) != 0 || array.raid_disks <= 0)
|
||||||
array.raid_disks <= 0)
|
|
||||||
return 0;
|
return 0;
|
||||||
avail = xcalloc(array.raid_disks, 1);
|
avail = xcalloc(array.raid_disks, 1);
|
||||||
for (i = 0; i < MAX_DISKS && array.nr_disks > 0; i++) {
|
for (i = 0; i < MAX_DISKS && array.nr_disks > 0; i++) {
|
||||||
|
@ -1175,7 +1183,7 @@ struct supertype *super_by_fd(int fd, char **subarrayp)
|
||||||
minor = sra->array.minor_version;
|
minor = sra->array.minor_version;
|
||||||
verstr = sra->text_version;
|
verstr = sra->text_version;
|
||||||
} else {
|
} else {
|
||||||
if (ioctl(fd, GET_ARRAY_INFO, &array))
|
if (md_get_array_info(fd, &array))
|
||||||
array.major_version = array.minor_version = 0;
|
array.major_version = array.minor_version = 0;
|
||||||
vers = array.major_version;
|
vers = array.major_version;
|
||||||
minor = array.minor_version;
|
minor = array.minor_version;
|
||||||
|
|
Loading…
Reference in New Issue