From: Paulina Szubarczyk <paulinaszubarczyk@gmail.com>
To: xen-devel@lists.xenproject.org
Cc: wei.liu2@citrix.com, George.Dunlap@eu.citrix.com,
Paulina Szubarczyk <paulinaszubarczyk@gmail.com>,
dario.faggioli@citrix.com, ian.jackson@eu.citrix.com,
roger.pau@citrix.com
Subject: [PATCH v4 7/7] libxl: libxl_tmem functions improving coding style
Date: Mon, 9 May 2016 13:30:58 +0200 [thread overview]
Message-ID: <1462793458-27170-8-git-send-email-paulinaszubarczyk@gmail.com> (raw)
In-Reply-To: <1462793458-27170-1-git-send-email-paulinaszubarczyk@gmail.com>
In accordance with CODING_SYTLE:
- Use 'r' for return values to functions whose return values are a
different error space (like xc_tmem_control, xc_tmem_auth)
libxc functions are supposed to, on failure, set errno and always
return -1 which is the value stored in 'r', therfore use LOGE()
instead LOGEV() with the 'r' value.
Signed-off-by: Paulina Szubarczyk <paulinaszubarczyk@gmail.com>
---
Changed since v3:
- changed LOG() to LOGE()
tools/libxl/libxl.c | 89 ++++++++++++++++++++++++++++++-----------------------
1 file changed, 50 insertions(+), 39 deletions(-)
diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 7cb15bf..3e5d97a 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -6620,14 +6620,14 @@ uint32_t libxl_vm_get_start_time(libxl_ctx *ctx, uint32_t domid)
char *libxl_tmem_list(libxl_ctx *ctx, uint32_t domid, int use_long)
{
- int rc;
+ int r;
char _buf[32768];
GC_INIT(ctx);
- rc = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_LIST, domid, 32768, use_long,
- _buf);
- if (rc < 0) {
- LOGEV(ERROR, rc, "Can not get tmem list");
+ r = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_LIST, domid, 32768,
+ use_long, _buf);
+ if (r < 0) {
+ LOGE(ERROR, "Can not get tmem list");
GC_FREE;
return NULL;
}
@@ -6638,34 +6638,38 @@ char *libxl_tmem_list(libxl_ctx *ctx, uint32_t domid, int use_long)
int libxl_tmem_freeze(libxl_ctx *ctx, uint32_t domid)
{
- int rc;
+ int r, rc;
GC_INIT(ctx);
- rc = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_FREEZE, domid, 0, 0,
- NULL);
- if (rc < 0) {
- LOGEV(ERROR, rc, "Can not freeze tmem pools");
- GC_FREE;
- return ERROR_FAIL;
+ r = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_FREEZE, domid, 0, 0,
+ NULL);
+ if (r < 0) {
+ LOGE(ERROR, "Can not freeze tmem pools");
+ rc = ERROR_FAIL;
+ goto out;
}
+ rc = 0;
+out:
GC_FREE;
return rc;
}
int libxl_tmem_thaw(libxl_ctx *ctx, uint32_t domid)
{
- int rc;
+ int r, rc;
GC_INIT(ctx);
- rc = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_THAW, domid, 0, 0,
- NULL);
- if (rc < 0) {
- LOGEV(ERROR, rc, "Can not thaw tmem pools");
- GC_FREE;
- return ERROR_FAIL;
+ r = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_THAW, domid, 0, 0,
+ NULL);
+ if (r < 0) {
+ LOGE(ERROR, "Can not thaw tmem pools");
+ rc = ERROR_FAIL;
+ goto out;
}
+ rc = 0;
+out:
GC_FREE;
return rc;
}
@@ -6684,22 +6688,24 @@ static int32_t tmem_setop_from_string(char *set_name)
int libxl_tmem_set(libxl_ctx *ctx, uint32_t domid, char* name, uint32_t set)
{
- int rc;
+ int r, rc;
int32_t subop = tmem_setop_from_string(name);
GC_INIT(ctx);
if (subop == -1) {
LOGEV(ERROR, -1, "Invalid set, valid sets are <weight|cap|compress>");
- GC_FREE;
- return ERROR_INVAL;
+ rc = ERROR_INVAL;
+ goto out;
}
- rc = xc_tmem_control(ctx->xch, -1, subop, domid, set, 0, NULL);
- if (rc < 0) {
- LOGEV(ERROR, rc, "Can not set tmem %s", name);
- GC_FREE;
- return ERROR_FAIL;
+ r = xc_tmem_control(ctx->xch, -1, subop, domid, set, 0, NULL);
+ if (r < 0) {
+ LOGE(ERROR, "Can not set tmem %s", name);
+ rc = ERROR_FAIL;
+ goto out;
}
+ rc = 0;
+out:
GC_FREE;
return rc;
}
@@ -6707,32 +6713,37 @@ int libxl_tmem_set(libxl_ctx *ctx, uint32_t domid, char* name, uint32_t set)
int libxl_tmem_shared_auth(libxl_ctx *ctx, uint32_t domid,
char* uuid, int auth)
{
- int rc;
+ int r, rc;
GC_INIT(ctx);
- rc = xc_tmem_auth(ctx->xch, domid, uuid, auth);
- if (rc < 0) {
- LOGEV(ERROR, rc, "Can not set tmem shared auth");
- GC_FREE;
- return ERROR_FAIL;
+ r = xc_tmem_auth(ctx->xch, domid, uuid, auth);
+ if (r < 0) {
+ LOGE(ERROR, "Can not set tmem shared auth");
+ rc = ERROR_FAIL;
+ goto out;
}
+ rc = 0;
+out:
GC_FREE;
return rc;
}
int libxl_tmem_freeable(libxl_ctx *ctx)
{
- int rc;
+ int r, rc;
GC_INIT(ctx);
- rc = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_QUERY_FREEABLE_MB, -1, 0, 0, 0);
- if (rc < 0) {
- LOGEV(ERROR, rc, "Can not get tmem freeable memory");
- GC_FREE;
- return ERROR_FAIL;
+ r = xc_tmem_control(ctx->xch, -1, XEN_SYSCTL_TMEM_OP_QUERY_FREEABLE_MB,
+ -1, 0, 0, 0);
+ if (r < 0) {
+ LOGE(ERROR, "Can not get tmem freeable memory");
+ rc = ERROR_FAIL;
+ goto out;
}
+ rc = 0;
+out:
GC_FREE;
return rc;
}
--
1.9.1
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next prev parent reply other threads:[~2016-05-09 11:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 11:30 [PATCH v4 00/10] xl: improve coding style and return more failure on Paulina Szubarczyk
2016-05-09 11:30 ` [PATCH v4 1/7] xl_cmdimpl - Add return codes for pci-detach, pci-attach, pci-asssignable-add, and pci-assignable-remove Paulina Szubarczyk
2016-06-09 14:44 ` Wei Liu
2016-06-09 14:53 ` Paulina Szubarczyk
2016-06-09 15:50 ` Wei Liu
2016-05-09 11:30 ` [PATCH v4 2/7] xl: improve main_tmem_* return codes Paulina Szubarczyk
2016-05-09 11:30 ` [PATCH v4 3/7] xl_cmdimpl: improve return codes for cd-insert commands Paulina Szubarczyk
2016-05-09 13:02 ` Wei Liu
2016-05-09 11:30 ` [PATCH v4 4/7] libxl: Fix libxl_set_memory_target return value Paulina Szubarczyk
2016-05-09 13:02 ` Wei Liu
2016-05-09 11:30 ` [PATCH v4 5/7] libxl: improve return codes for some pci related functions Paulina Szubarczyk
2016-05-09 13:02 ` Wei Liu
2016-05-09 11:30 ` [PATCH v4 6/7] libxl: style cleanups in libxl_device_pci_assignable_list() Paulina Szubarczyk
2016-05-09 13:02 ` Wei Liu
2016-05-09 11:30 ` Paulina Szubarczyk [this message]
2016-05-09 13:02 ` [PATCH v4 7/7] libxl: libxl_tmem functions improving coding style Wei Liu
2016-05-09 13:06 ` [PATCH v4 00/10] xl: improve coding style and return more failure on Wei Liu
2016-05-09 13:25 ` Paulina Szubarczyk
2016-05-09 13:31 ` Wei Liu
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