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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-01-31 05:50:16 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-01-31 05:50:16 +0000
commit19c986195eab02a3b1da7b532df623cf46d92418 (patch)
tree639e479365923111fbeb91a7d24dad570d50d0ff /sysfs.c
parentAdding upstream version 4.2+20231121. (diff)
downloadmdadm-19c986195eab02a3b1da7b532df623cf46d92418.tar.xz
mdadm-19c986195eab02a3b1da7b532df623cf46d92418.zip
Adding upstream version 4.2+20240118.upstream/4.2+20240118
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sysfs.c')
-rw-r--r--sysfs.c78
1 files changed, 6 insertions, 72 deletions
diff --git a/sysfs.c b/sysfs.c
index 94d02f5..f95ef70 100644
--- a/sysfs.c
+++ b/sysfs.c
@@ -148,7 +148,7 @@ struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options)
strcpy(base, "metadata_version");
if (load_sys(fname, buf, sizeof(buf)))
goto abort;
- if (strncmp(buf, "none", 4) == 0) {
+ if (str_is_none(buf) == true) {
sra->array.major_version =
sra->array.minor_version = -1;
strcpy(sra->text_version, "");
@@ -244,7 +244,7 @@ struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options)
goto abort;
if (strncmp(buf, "file", 4) == 0)
sra->bitmap_offset = 1;
- else if (strncmp(buf, "none", 4) == 0)
+ else if (str_is_none(buf) == true)
sra->bitmap_offset = 0;
else if (buf[0] == '+')
sra->bitmap_offset = strtol(buf+1, NULL, 10);
@@ -664,7 +664,7 @@ int sysfs_set_array(struct mdinfo *info, int vers)
ver[0] = 0;
if (info->array.major_version == -1 &&
info->array.minor_version == -2) {
- char buf[1024];
+ char buf[SYSFS_MAX_BUF_SIZE];
strcat(strcpy(ver, "external:"), info->text_version);
@@ -675,7 +675,7 @@ int sysfs_set_array(struct mdinfo *info, int vers)
* version first, and preserve the flag
*/
if (sysfs_get_str(info, NULL, "metadata_version",
- buf, 1024) > 0)
+ buf, sizeof(buf)) > 0)
if (strlen(buf) >= 9 && buf[9] == '-')
ver[9] = '-';
@@ -803,72 +803,6 @@ int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd, int resume)
return rv;
}
-#if 0
-int sysfs_disk_to_sg(int fd)
-{
- /* from an open block device, try find and open its corresponding
- * scsi_generic interface
- */
- struct stat st;
- char path[256];
- char sg_path[256];
- char sg_major_minor[10];
- char *c;
- DIR *dir;
- struct dirent *de;
- int major, minor, rv;
-
- if (fstat(fd, &st))
- return -1;
-
- snprintf(path, sizeof(path), "/sys/dev/block/%d:%d/device",
- major(st.st_rdev), minor(st.st_rdev));
-
- dir = opendir(path);
- if (!dir)
- return -1;
-
- de = readdir(dir);
- while (de) {
- if (strncmp("scsi_generic:", de->d_name,
- strlen("scsi_generic:")) == 0)
- break;
- de = readdir(dir);
- }
- closedir(dir);
-
- if (!de)
- return -1;
-
- snprintf(sg_path, sizeof(sg_path), "%s/%s/dev", path, de->d_name);
- fd = open(sg_path, O_RDONLY);
- if (fd < 0)
- return fd;
-
- rv = read(fd, sg_major_minor, sizeof(sg_major_minor));
- close(fd);
- if (rv < 0 || rv == sizeof(sg_major_minor))
- return -1;
- else
- sg_major_minor[rv - 1] = '\0';
-
- c = strchr(sg_major_minor, ':');
- *c = '\0';
- c++;
- major = strtol(sg_major_minor, NULL, 10);
- minor = strtol(c, NULL, 10);
- snprintf(path, sizeof(path), "/dev/.tmp.md.%d:%d:%d",
- (int) getpid(), major, minor);
- if (mknod(path, S_IFCHR|0600, makedev(major, minor))==0) {
- fd = open(path, O_RDONLY);
- unlink(path);
- return fd;
- }
-
- return -1;
-}
-#endif
-
int sysfs_disk_to_scsi_id(int fd, __u32 *id)
{
/* from an open block device, try to retrieve it scsi_id */
@@ -966,11 +900,11 @@ int sysfs_freeze_array(struct mdinfo *sra)
* return 0 if this kernel doesn't support 'frozen'
* return 1 if it worked.
*/
- char buf[20];
+ char buf[SYSFS_MAX_BUF_SIZE];
if (!sysfs_attribute_available(sra, NULL, "sync_action"))
return 1; /* no sync_action == frozen */
- if (sysfs_get_str(sra, NULL, "sync_action", buf, 20) <= 0)
+ if (sysfs_get_str(sra, NULL, "sync_action", buf, sizeof(buf)) <= 0)
return 0;
if (strcmp(buf, "frozen\n") == 0)
/* Already frozen */