diff options
| author | Peter Lieven <pl@kamp.de> | 2015-11-09 08:09:33 +0100 |
|---|---|---|
| committer | Jeff Cody <jcody@redhat.com> | 2016-02-29 14:54:30 -0500 |
| commit | 7725b8bf129de6887fb680da28775fab5eded914 (patch) | |
| tree | 43b5d204a3632d4576dc4a73697227228f85ab49 /block/nfs.c | |
| parent | 071608b519adf62bc29c914343a21c5407ab1ac9 (diff) | |
block/nfs: add support for setting debug level
recent libnfs versions support logging debug messages. Add
support for it in qemu through an URL parameter.
Example:
qemu -cdrom nfs://127.0.0.1/iso/my.iso?debug=2
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447052973-14513-1-git-send-email-pl@kamp.de
Signed-off-by: Jeff Cody <jcody@redhat.com>
Diffstat (limited to 'block/nfs.c')
| -rw-r--r-- | block/nfs.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/block/nfs.c b/block/nfs.c index 5eb8c133b9..7220e8991b 100644 --- a/block/nfs.c +++ b/block/nfs.c @@ -36,6 +36,7 @@ #include <nfsc/libnfs.h> #define QEMU_NFS_MAX_READAHEAD_SIZE 1048576 +#define QEMU_NFS_MAX_DEBUG_LEVEL 2 typedef struct NFSClient { struct nfs_context *context; @@ -334,6 +335,17 @@ static int64_t nfs_client_open(NFSClient *client, const char *filename, } nfs_set_readahead(client->context, val); #endif +#ifdef LIBNFS_FEATURE_DEBUG + } else if (!strcmp(qp->p[i].name, "debug")) { + /* limit the maximum debug level to avoid potential flooding + * of our log files. */ + if (val > QEMU_NFS_MAX_DEBUG_LEVEL) { + error_report("NFS Warning: Limiting NFS debug level" + " to %d", QEMU_NFS_MAX_DEBUG_LEVEL); + val = QEMU_NFS_MAX_DEBUG_LEVEL; + } + nfs_set_debug(client->context, val); +#endif } else { error_setg(errp, "Unknown NFS parameter name: %s", qp->p[i].name); |