> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Jyotiswarup
> Raiturkar
> Sent: Tuesday, February 04, 2014 3:33 AM
> To: dev at dpdk.org
> Cc: Jyotiswarup Raiturkar
> Subject: [dpdk-dev] couple of minor compilation errors in DPDK 1.6
> (/lib/librte_eal/linuxapp/eal/eal_ivshmem.c)
>
> Hi
>
> I downloaded DPDK 1.6 from the Intel website and ran into couple of
> compilation errors with /lib/librte_eal/linuxapp/eal/eal_ivshmem.c.
> The following changes seem to fix it. Have other people seen these?
>
> Thanks
> Jyoti
>
>
> @@ -472,7 +472,7 @@
> rte_snprintf(path, sizeof(path), IVSHMEM_CONFIG_PATH,
> internal_config.hugefile_prefix);
>
> - fd = open(path, O_CREAT | O_RDWR);
> + fd = open(path, O_CREAT | O_RDWR, S_IRWXU | S_IRWXG | S_IRWXO );
>
> if (fd < 0) {
> RTE_LOG(ERR, EAL, "Could not open %s: %s\n", path, strerror(errno));
> @@ -
> 486,7 +486,8 @@
> return -1;
> }
>
> - ftruncate(fd, sizeof(struct ivshmem_shared_config));
> + if (ftruncate(fd, sizeof(struct ivshmem_shared_config))) {
> + close(fd); return -1;
> + }
>
> ivshmem_config = mmap(NULL, sizeof(struct ivshmem_shared_config),
> PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
Hi
I don't think assigning 0777 to a newly created file is a good idea, I would
prefer 0666. Other than that, there is also another place where a call to
close() should be added, so the correct patch would be:
@@ -443,7 +443,7 @@ create_shared_config(void)
rte_snprintf(path, sizeof(path), IVSHMEM_CONFIG_PATH,
internal_config.hugefile_prefix);
- fd = open(path, O_CREAT | O_RDWR);
+ fd = open(path, O_CREAT | O_RDWR, 0666);
if (fd < 0) {
RTE_LOG(ERR, EAL, "Could not open %s: %s\n", path,
strerror(errno)); @@ -462,14 +462,17 @@ create_shared_config(void)
ivshmem_config = mmap(NULL, sizeof(struct ivshmem_shared_config),
PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
- if (ivshmem_config == MAP_FAILED)
+ if (ivshmem_config == MAP_FAILED) {
+ close(fd);
return -1;
+ }
memset(ivshmem_config, 0, sizeof(struct ivshmem_shared_config));
/* change the exclusive lock we got earlier to a shared lock */
if (flock(fd, LOCK_SH | LOCK_NB) == -1) {
RTE_LOG(ERR, EAL, "Locking %s failed: %s \n", path,
strerror(errno));
+ close(fd);
return -1;
}
Best regards,
Anatoly Burakov
DPDK SW Engineer
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