From bfbcae445cd118cee6d0aa25c15f9eb7f8baa353 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 27 Jul 2022 09:20:06 +0200 Subject: [PATCH] xl: move freemem()'s "credit expired" loop exit Move the "credit expired" loop exit to the middle of the loop, immediately after "return true". This way having reached the goal on the last iteration would be reported as success to the caller, rather than as "timed out". Signed-off-by: Jan Beulich Reviewed-by: Anthony PERARD master commit: d8f8cb8bdd02fad3b6986ae93511f750fa7f7e6a master date: 2022-07-18 17:48:18 +0200 --- tools/xl/xl_vmcontrol.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/tools/xl/xl_vmcontrol.c b/tools/xl/xl_vmcontrol.c index 5dee7730ca..d1c6f8aae6 100644 --- a/tools/xl/xl_vmcontrol.c +++ b/tools/xl/xl_vmcontrol.c @@ -332,7 +332,7 @@ static bool freemem(uint32_t domid, libxl_domain_config *d_config) if (rc < 0) return false; - do { + for (;;) { time_t start; rc = libxl_get_free_memory(ctx, &free_memkb); @@ -342,6 +342,9 @@ static bool freemem(uint32_t domid, libxl_domain_config *d_config) if (free_memkb >= need_memkb) return true; + if (credit <= 0) + return false; + rc = libxl_set_memory_target(ctx, 0, free_memkb - need_memkb, 1, 0); if (rc < 0) return false; @@ -354,9 +357,7 @@ static bool freemem(uint32_t domid, libxl_domain_config *d_config) return false; credit -= difftime(time(NULL), start); - } while (credit > 0); - - return false; + } } static void reload_domain_config(uint32_t domid, -- 2.30.2