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files: Print error if fcntl failed

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Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov
2012-05-05 19:20:00 +04:00
committed by Pavel Emelyanov
parent 112b2fe524
commit 7b7e86c9ca
1 changed files with 13 additions and 6 deletions
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19
files.c
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@@ -451,15 +451,22 @@ int open_reg_by_id(u32 id)
#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME)
int set_fd_flags(int fd, int flags)
{
int old;
int ret;
old = fcntl(fd, F_GETFL, 0);
if (old < 0)
return old;
ret = fcntl(fd, F_GETFL, 0);
if (ret < 0)
goto err;
flags = (SETFL_MASK & flags) | (old & ~SETFL_MASK);
flags = (SETFL_MASK & flags) | (ret & ~SETFL_MASK);
return fcntl(fd, F_SETFL, flags);
ret = fcntl(fd, F_SETFL, flags);
if (ret < 0)
goto err;
return 0;
err:
pr_perror("fcntl call on fd %d (flags %x) failed", fd, flags);
return -1;
}
static void transport_name_gen(struct sockaddr_un *addr, int *len,