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Kernel: Misc tweaks

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This commit is contained in:
Sergey Bugaev 2020-01-20 15:18:54 +03:00 • committed by Andreas Kling
parent 9bc6157998
commit d5426fcc88
1 changed files with 4 additions and 9 deletions
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13
Kernel/Process.cpp
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@ -1722,8 +1722,6 @@ int Process::sys$access(const char* user_path, size_t path_length, int mode)
int Process::sys$fcntl(int fd, int cmd, u32 arg) int Process::sys$fcntl(int fd, int cmd, u32 arg)
{ {
REQUIRE_PROMISE(stdio); REQUIRE_PROMISE(stdio);
(void)cmd;
(void)arg;
#ifdef DEBUG_IO #ifdef DEBUG_IO
dbgprintf("sys$fcntl: fd=%d, cmd=%d, arg=%u\n", fd, cmd, arg); dbgprintf("sys$fcntl: fd=%d, cmd=%d, arg=%u\n", fd, cmd, arg);
#endif #endif
@ -1981,14 +1979,11 @@ int Process::sys$open(const Syscall::SC_open_params* user_params)
int Process::alloc_fd(int first_candidate_fd) int Process::alloc_fd(int first_candidate_fd)
{ {
int fd = -EMFILE;
for (int i = first_candidate_fd; i < (int)m_max_open_file_descriptors; ++i) { for (int i = first_candidate_fd; i < (int)m_max_open_file_descriptors; ++i) {
if (!m_fds[i]) { if (!m_fds[i])
fd = i; return i;
break;
}
} }
return fd; return -EMFILE;
} }
int Process::sys$pipe(int pipefd[2], int flags) int Process::sys$pipe(int pipefd[2], int flags)
@ -2497,7 +2492,7 @@ int Process::sys$dup(int old_fd)
auto description = file_description(old_fd); auto description = file_description(old_fd);
if (!description) if (!description)
return -EBADF; return -EBADF;
int new_fd = alloc_fd(0); int new_fd = alloc_fd();
if (new_fd < 0) if (new_fd < 0)
return new_fd; return new_fd;
m_fds[new_fd].set(*description); m_fds[new_fd].set(*description);