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fs/procfs: Remove the unnecessary critical section

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Xiang Xiao 2018-11-29 12:51:34 -06:00 committed by Gregory Nutt
parent 4e8b3ebb8a
commit 1e0e1ae856
2 changed files with 0 additions and 29 deletions
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7
fs/procfs/fs_procfs.c
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@ -553,7 +553,6 @@ static int procfs_opendir(FAR struct inode *mountpt, FAR const char *relpath,
FAR struct procfs_level0_s *level0;
FAR struct procfs_dir_priv_s *dirpriv;
FAR void *priv = NULL;
irqstate_t flags;
finfo("relpath: \"%s\"\n", relpath ? relpath : "NULL");
DEBUGASSERT(mountpt && relpath && dir && !dir->u.procfs);
@ -587,9 +586,7 @@ static int procfs_opendir(FAR struct inode *mountpt, FAR const char *relpath,
*/
#ifndef CONFIG_FS_PROCFS_EXCLUDE_PROCESS
flags = enter_critical_section();
sched_foreach(procfs_enum, level0);
leave_critical_section(flags);
#else
level0->base.index = 0;
level0->base.nentries = 0;
@ -715,7 +712,6 @@ static int procfs_readdir(struct inode *mountpt, struct fs_dirent_s *dir)
FAR struct tcb_s *tcb;
FAR const char *name = NULL;
unsigned int index;
irqstate_t flags;
pid_t pid;
int ret = -ENOENT;
@ -839,10 +835,7 @@ static int procfs_readdir(struct inode *mountpt, struct fs_dirent_s *dir)
pid = level0->pid[index];
flags = enter_critical_section();
tcb = sched_gettcb(pid);
leave_critical_section(flags);
if (!tcb)
{
ferr("ERROR: PID %d is no longer valid\n", (int)pid);

22
fs/procfs/fs_procfsproc.c
View File

@ -1268,7 +1268,6 @@ static int proc_open(FAR struct file *filep, FAR const char *relpath,
FAR const struct proc_node_s *node;
FAR struct tcb_s *tcb;
FAR char *ptr;
irqstate_t flags;
unsigned long tmp;
pid_t pid;
@ -1326,10 +1325,7 @@ static int proc_open(FAR struct file *filep, FAR const char *relpath,
pid = (pid_t)tmp;
flags = enter_critical_section();
tcb = sched_gettcb(pid);
leave_critical_section(flags);
if (tcb == NULL)
{
ferr("ERROR: PID %d is no longer valid\n", (int)pid);
@ -1404,7 +1400,6 @@ static ssize_t proc_read(FAR struct file *filep, FAR char *buffer,
{
FAR struct proc_file_s *procfile;
FAR struct tcb_s *tcb;
irqstate_t flags;
ssize_t ret;
finfo("buffer=%p buflen=%d\n", buffer, (int)buflen);
@ -1416,13 +1411,10 @@ static ssize_t proc_read(FAR struct file *filep, FAR char *buffer,
/* Verify that the thread is still valid */
flags = enter_critical_section();
tcb = sched_gettcb(procfile->pid);
if (tcb == NULL)
{
ferr("ERROR: PID %d is not valid\n", (int)procfile->pid);
leave_critical_section(flags);
return -ENODEV;
}
@ -1471,8 +1463,6 @@ static ssize_t proc_read(FAR struct file *filep, FAR char *buffer,
break;
}
leave_critical_section(flags);
/* Update the file offset */
if (ret > 0)
@ -1535,7 +1525,6 @@ static int proc_opendir(FAR const char *relpath, FAR struct fs_dirent_s *dir)
FAR struct proc_dir_s *procdir;
FAR const struct proc_node_s *node;
FAR struct tcb_s *tcb;
irqstate_t flags;
unsigned long tmp;
FAR char *ptr;
pid_t pid;
@ -1586,10 +1575,7 @@ static int proc_opendir(FAR const char *relpath, FAR struct fs_dirent_s *dir)
pid = (pid_t)tmp;
flags = enter_critical_section();
tcb = sched_gettcb(pid);
leave_critical_section(flags);
if (tcb == NULL)
{
ferr("ERROR: PID %d is not valid\n", (int)pid);
@ -1690,7 +1676,6 @@ static int proc_readdir(struct fs_dirent_s *dir)
FAR const struct proc_node_s *node = NULL;
FAR struct tcb_s *tcb;
unsigned int index;
irqstate_t flags;
pid_t pid;
int ret;
@ -1718,10 +1703,7 @@ static int proc_readdir(struct fs_dirent_s *dir)
pid = procdir->pid;
flags = enter_critical_section();
tcb = sched_gettcb(pid);
leave_critical_section(flags);
if (tcb == NULL)
{
ferr("ERROR: PID %d is no longer valid\n", (int)pid);
@ -1794,7 +1776,6 @@ static int proc_stat(const char *relpath, struct stat *buf)
FAR struct tcb_s *tcb;
unsigned long tmp;
FAR char *ptr;
irqstate_t flags;
pid_t pid;
/* Two path forms are accepted:
@ -1837,10 +1818,7 @@ static int proc_stat(const char *relpath, struct stat *buf)
pid = (pid_t)tmp;
flags = enter_critical_section();
tcb = sched_gettcb(pid);
leave_critical_section(flags);
if (tcb == NULL)
{
ferr("ERROR: PID %d is no longer valid\n", (int)pid);