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authorChristian Schoenebeck2020-09-06 18:50:32 +0200
committerChristian Schoenebeck2020-09-15 12:12:03 +0200
commitc418f935ac6aed9aa1dc0ceb4b19044a9b7b7968 (patch)
treee4ac892b028604758c487ab5276050ea9f772f5b /fsdev
parent9pfs: log warning if msize <= 8192 (diff)
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9pfs: disable msize warning for synth driver
Previous patch introduced a performance warning being logged on host side if client connected with an 'msize' <= 8192. Disable this performance warning for the synth driver to prevent that warning from being printed whenever the 9pfs (qtest) test cases are running. Introduce a new export flag V9FS_NO_PERF_WARN for that purpose, which might also be used to disable such warnings from the CLI in future. We could have also prevented the warning by simply raising P9_MAX_SIZE in virtio-9p-test.c to any value larger than 8192, however in the context of test cases it makes sense running for edge cases, which includes the lowest 'msize' value supported by the server which is 4096, hence we want to preserve an msize of 4096 for the test client. Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com> Reviewed-by: Greg Kurz <groug@kaod.org> Message-Id: <E1kEyDy-0006nN-5A@lizzy.crudebyte.com> Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Diffstat (limited to 'fsdev')
-rw-r--r--fsdev/file-op-9p.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h
index f2f7772c86..d51cec2f3b 100644
--- a/fsdev/file-op-9p.h
+++ b/fsdev/file-op-9p.h
@@ -64,6 +64,10 @@ typedef struct ExtendedOps {
*/
#define V9FS_REMAP_INODES 0x00000200
#define V9FS_FORBID_MULTIDEVS 0x00000400
+/*
+ * Disables certain performance warnings from being logged on host side.
+ */
+#define V9FS_NO_PERF_WARN 0x00000800
#define V9FS_SEC_MASK 0x0000003C