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authorPhil Pennock <pdp@exim.org>2011-02-21 22:17:13 -0500
committerPhil Pennock <pdp@exim.org>2011-02-21 22:17:13 -0500
commit554e333ebbe0552b61604cdf8fec77f507a3ab9b (patch)
treef4f30f16b32287c58da8568c249cab344a8f602e
parent2e64baa9d155c1a657ba43cbe0f9bd4846621b36 (diff)
Don't disable quota when maildirsize lost to races.exim-4_75_RC2
When maildir_ensure_sizefile() returns -2, we still have size information, so we can still use that. Don't disable quota. As a result, do refrain from potentially calling close(-2). Fixes bug 1086
-rw-r--r--src/src/transports/appendfile.c19
1 files changed, 7 insertions, 12 deletions
diff --git a/src/src/transports/appendfile.c b/src/src/transports/appendfile.c
index e5ab65765..39dd4f8f0 100644
--- a/src/src/transports/appendfile.c
+++ b/src/src/transports/appendfile.c
@@ -2419,18 +2419,12 @@ else
"%s/maildirsize", check_path);
return FALSE;
}
- else if (maildirsize_fd == -2)
- {
- DEBUG(D_transport) debug_printf("disabling quota check because of "
- "races updating %s/maildirsize", check_path);
- disable_quota = TRUE;
- }
+ /* can also return -2, which means that the file was removed because of
+ raciness; but in this case, the size & filecount will still have been
+ updated. */
- if (maildirsize_fd >= 0)
- {
- if (mailbox_size < 0) mailbox_size = size;
- if (mailbox_filecount < 0) mailbox_filecount = filecount;
- }
+ if (mailbox_size < 0) mailbox_size = size;
+ if (mailbox_filecount < 0) mailbox_filecount = filecount;
}
/* No quota enforcement; ensure file does *not* exist; calculate size if
@@ -2927,7 +2921,8 @@ if (!disable_quota)
if (yield == OK && maildirsize_fd >= 0)
maildir_record_length(maildirsize_fd, message_size);
maildir_save_errno = errno; /* Preserve errno while closing the file */
- (void)close(maildirsize_fd);
+ if (maildirsize_fd >= 0)
+ (void)close(maildirsize_fd);
errno = maildir_save_errno;
}
#endif /* SUPPORT_MAILDIR */