Revision eab5fd59 qga/commands-posix.c
| b/qga/commands-posix.c | ||
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#include <sys/socket.h> |
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#include <net/if.h> |
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#if defined(__linux__) && defined(FIFREEZE)
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#ifdef FIFREEZE
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#define CONFIG_FSFREEZE |
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#endif |
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#ifdef FITRIM |
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#define CONFIG_FSTRIM |
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#endif |
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#endif |
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void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err) |
| ... | ... | |
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/* linux-specific implementations. avoid this if at all possible. */ |
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#if defined(__linux__) |
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#if defined(CONFIG_FSFREEZE) |
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#if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) |
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typedef struct FsMount {
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char *dirname; |
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char *devtype; |
| ... | ... | |
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return 0; |
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} |
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#endif |
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#if defined(CONFIG_FSFREEZE) |
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/* |
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* Return status of freeze/thaw |
| ... | ... | |
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} |
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#endif /* CONFIG_FSFREEZE */ |
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#if defined(CONFIG_FSTRIM) |
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/* |
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* Walk list of mounted file systems in the guest, and trim them. |
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*/ |
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void qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **err) |
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{
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int ret = 0; |
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FsMountList mounts; |
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struct FsMount *mount; |
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int fd; |
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char err_msg[512]; |
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struct fstrim_range r = {
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.start = 0, |
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.len = -1, |
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.minlen = has_minimum ? minimum : 0, |
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}; |
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slog("guest-fstrim called");
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QTAILQ_INIT(&mounts); |
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ret = build_fs_mount_list(&mounts); |
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if (ret < 0) {
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return; |
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} |
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QTAILQ_FOREACH(mount, &mounts, next) {
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fd = qemu_open(mount->dirname, O_RDONLY); |
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if (fd == -1) {
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sprintf(err_msg, "failed to open %s, %s", mount->dirname, |
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strerror(errno)); |
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error_set(err, QERR_QGA_COMMAND_FAILED, err_msg); |
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goto error; |
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} |
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/* We try to cull filesytems we know won't work in advance, but other |
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* filesytems may not implement fstrim for less obvious reasons. These |
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* will report EOPNOTSUPP; we simply ignore these errors. Any other |
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* error means an unexpected error, so return it in those cases. In |
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* some other cases ENOTTY will be reported (e.g. CD-ROMs). |
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*/ |
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ret = ioctl(fd, FITRIM, &r); |
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if (ret == -1) {
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if (errno != ENOTTY && errno != EOPNOTSUPP) {
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sprintf(err_msg, "failed to trim %s, %s", |
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mount->dirname, strerror(errno)); |
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error_set(err, QERR_QGA_COMMAND_FAILED, err_msg); |
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close(fd); |
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goto error; |
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} |
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} |
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close(fd); |
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} |
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error: |
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free_fs_mount_list(&mounts); |
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} |
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#endif /* CONFIG_FSTRIM */ |
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#define LINUX_SYS_STATE_FILE "/sys/power/state" |
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#define SUSPEND_SUPPORTED 0 |
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#define SUSPEND_NOT_SUPPORTED 1 |
| ... | ... | |
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return 0; |
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} |
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#endif /* CONFIG_FSFREEZE */ |
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#if !defined(CONFIG_FSTRIM) |
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void qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **err) |
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{
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error_set(err, QERR_UNSUPPORTED); |
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return; |
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} |
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#endif |
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/* register init/cleanup routines for stateful command groups */ |
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