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Ignore missing files on pool refresh

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If we cannot stat/open a file on pool refresh, returning -1 aborts
the refresh and the pool is undefined.

Only treat missing files as fatal unless VolOpenCheckMode is called
with the VIR_STORAGE_VOL_OPEN_ERROR flag. If this flag is missing
(when it's called from virStorageBackendProbeTarget in
virStorageBackendFileSystemRefresh), only emit a warning and return
-2 to let the caller skip over the file.

https://bugzilla.redhat.com/show_bug.cgi?id=977706
This commit is contained in:
Ján Tomko 2014-03-20 16:35:00 +01:00
parent 0edfc9ef63
commit ee640f444b
1 changed files with 8 additions and 0 deletions
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8
src/storage/storage_backend.c
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@ -1212,6 +1212,10 @@ virStorageBackendVolOpenCheckMode(const char *path, struct stat *sb,
char *base = last_component(path);
if (lstat(path, sb) < 0) {
if (errno == ENOENT && !(flags & VIR_STORAGE_VOL_OPEN_ERROR)) {
VIR_WARN("ignoring missing file '%s'", path);
return -2;
}
virReportSystemError(errno,
_("cannot stat file '%s'"),
path);
@ -1238,6 +1242,10 @@ virStorageBackendVolOpenCheckMode(const char *path, struct stat *sb,
VIR_WARN("ignoring dangling symlink '%s'", path);
return -2;
}
if (errno == ENOENT && !(flags & VIR_STORAGE_VOL_OPEN_ERROR)) {
VIR_WARN("ignoring missing file '%s'", path);
return -2;
}
virReportSystemError(errno,
_("cannot open volume '%s'"),