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| author | Chen Hanxiao <chenhanxiao@gmail.com> | 2018-06-14 16:06:06 +0800 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2018-07-03 11:38:05 -0500 |
| commit | 25b5ff1a860634c2b1463b2882ed02cd55f8ac62 (patch) | |
| tree | 42586e15d1dd3b2be37d692c2db67d11e9c4ff0a /qga/commands-posix.c | |
| parent | 141b197408ab398c4f474ac1a728ab316e921f2b (diff) | |
| download | focaccia-qemu-25b5ff1a860634c2b1463b2882ed02cd55f8ac62.tar.gz focaccia-qemu-25b5ff1a860634c2b1463b2882ed02cd55f8ac62.zip | |
qga: add mountpoint usage info to GuestFilesystemInfo
This patch adds support for getting the usage of mounted filesystem. The usage of fs stored as used_bytes and total_bytes. It's very useful when we try to monitor guest's filesystem. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Cc: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'qga/commands-posix.c')
| -rw-r--r-- | qga/commands-posix.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 9284e71666..ae8535e497 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -46,6 +46,7 @@ extern char **environ; #include <arpa/inet.h> #include <sys/socket.h> #include <net/if.h> +#include <sys/statvfs.h> #ifdef FIFREEZE #define CONFIG_FSFREEZE @@ -1072,6 +1073,8 @@ static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, Error **errp) { GuestFilesystemInfo *fs = g_malloc0(sizeof(*fs)); + struct statvfs buf; + unsigned long used, nonroot_total, fr_size; char *devpath = g_strdup_printf("/sys/dev/block/%u:%u", mount->devmajor, mount->devminor); @@ -1079,7 +1082,19 @@ static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, fs->type = g_strdup(mount->devtype); build_guest_fsinfo_for_device(devpath, fs, errp); + if (statvfs(fs->mountpoint, &buf) == 0) { + fr_size = buf.f_frsize; + used = buf.f_blocks - buf.f_bfree; + nonroot_total = used + buf.f_bavail; + fs->used_bytes = used * fr_size; + fs->total_bytes = nonroot_total * fr_size; + + fs->has_total_bytes = true; + fs->has_used_bytes = true; + } + g_free(devpath); + return fs; } |