---
block/file-posix.c | 60 ++++++++++++++++++++++++++++++++++++
include/block/block-common.h | 4 +--
2 files changed, 62 insertions(+), 2 deletions(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index 73c2cdfbca..74c0245e0f 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -1277,6 +1277,66 @@ out:
#endif
}
+/*
+ * Convert the zoned attribute file in sysfs to internal value.
+ */
+static zone_model get_sysfs_str_val(int fd, struct stat *st) {
+#ifdef CONFIG_LINUX
+ char buf[32];
+ char *sysfspath = NULL;
+ int ret;
+ int sysfd = -1;
+
+ if (S_ISCHR(st->st_mode)) {
+ if (ioctl(fd, SG_GET_SG_TABLESIZE, &ret) == 0) {
+ return ret;
+ }
+ return -ENOTSUP;
+ }
+
+ if (!S_ISBLK(st->st_mode)) {
+ return -ENOTSUP;
+ }
+
+ sysfspath = g_strdup_printf("/sys/dev/block/%u:%u/queue/zoned",
+ major(st->st_rdev), minor(st->st_rdev));
+ sysfd = open(sysfspath, O_RDONLY);
+ if (sysfd == -1) {
+ ret = -errno;
+ goto out;
+ }
+ do {
+ ret = read(sysfd, buf, sizeof(buf) - 1);
+ } while (ret == -1 && errno == EINTR);
+ if (ret < 0) {
+ ret = -errno;
+ goto out;
+ } else if (ret == 0) {
+ ret = -EIO;
+ goto out;
+ }
+ buf[ret] = 0;
+
+ /* The file is ended with '\n' */
+ if (strcmp(buf, "host-managed\n") == 0) {
+ return BLK_Z_HM;
+ } else if (strcmp(buf, "host-aware\n") == 0) {
+ return BLK_Z_HA;
+ } else {
+ return -ENOTSUP;
+ }
+
+out:
+ if (sysfd != -1) {
+ close(sysfd);
+ }
+ g_free(sysfspath);
+ return ret;
+#else
+ return -ENOTSUP;
+#endif
+}
+
static int hdev_get_max_segments(int fd, struct stat *st) {
int ret;
ret = get_sysfs_long_val(fd, st, "max_segments");
diff --git a/include/block/block-common.h b/include/block/block-common.h
index 78cddeeda5..35e00afe8e 100644
--- a/include/block/block-common.h
+++ b/include/block/block-common.h
@@ -56,8 +56,8 @@ typedef enum zone_op {
} zone_op;
typedef enum zone_model {
- BLK_Z_HM,
- BLK_Z_HA,
+ BLK_Z_HM = 0x1,
+ BLK_Z_HA = 0x2,
} zone_model;
typedef enum BlkZoneCondition {
--
2.35.3
