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storage: Ignore dangling symbolic link for filesystem pool

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If there is a dangling symbolic link in filesystem pool, the pool
will fail to start or refresh, this patch is to fix it by ignoring
it with a warning log.
This commit is contained in:
Osier Yang 2010-12-21 14:45:24 +08:00 committed by Eric Blake
parent ee3efc41e6
commit 76965b800e
2 changed files with 9 additions and 2 deletions
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9
src/storage/storage_backend.c
View File

@ -977,7 +977,8 @@ virStorageBackendForType(int type) {
/*
* Allows caller to silently ignore files with improper mode
*
* Returns -1 on error, -2 if file mode is unexpected.
* Returns -1 on error, -2 if file mode is unexpected or the
* volume is a dangling symbolic link.
*/
int
virStorageBackendVolOpenCheckMode(const char *path, unsigned int flags)
@ -986,6 +987,12 @@ virStorageBackendVolOpenCheckMode(const char *path, unsigned int flags)
struct stat sb;
if ((fd = open(path, O_RDONLY|O_NONBLOCK|O_NOCTTY)) < 0) {
if ((errno == ENOENT || errno == ELOOP) &&
lstat(path, &sb) == 0) {
VIR_WARN("ignoring dangling symlink '%s'", path);
return -2;
}
virReportSystemError(errno,
_("cannot open volume '%s'"),
path);

2
src/storage/storage_backend_fs.c
View File

@ -651,7 +651,7 @@ virStorageBackendFileSystemRefresh(virConnectPtr conn ATTRIBUTE_UNUSED,
goto cleanup;
else {
/* Silently ignore non-regular files,
* eg '.' '..', 'lost+found' */
* eg '.' '..', 'lost+found', dangling symbolic link */
virStorageVolDefFree(vol);
vol = NULL;
continue;