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sheepdog: add SD_RES_READONLY result code 

Sheepdog returns SD_RES_READONLY when qemu sends write requests to the
snapshot vdi.  This adds the result code and makes sd_strerror() print
its error reason.

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
MORITA Kazutaka 2013-04-26 01:19:52 +09:00 committed by Stefan Hajnoczi
parent 982dcbf4cb
commit 6a0b549033
1 changed files with 2 additions and 0 deletions
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2
block/sheepdog.c
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@ -68,6 +68,7 @@
#define SD_RES_WAIT_FOR_JOIN 0x17 /* Waiting for other nodes joining */
#define SD_RES_JOIN_FAILED 0x18 /* Target node had failed to join sheepdog */
#define SD_RES_HALT 0x19 /* Sheepdog is stopped serving IO request */
#define SD_RES_READONLY 0x1A /* Object is read-only */
/*
* Object ID rules
@ -349,6 +350,7 @@ static const char * sd_strerror(int err)
{SD_RES_WAIT_FOR_JOIN, "Sheepdog is waiting for other nodes joining"},
{SD_RES_JOIN_FAILED, "Target node had failed to join sheepdog"},
{SD_RES_HALT, "Sheepdog is stopped serving IO request"},
{SD_RES_READONLY, "Object is read-only"},
};
for (i = 0; i < ARRAY_SIZE(errors); ++i) {