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[PATCH] sem2mutex: fs/seq_file.c

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Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-03-23 03:00:37 -08:00 committed by Linus Torvalds
parent 7cf34c761d
commit 0ac1759abc
2 changed files with 7 additions and 7 deletions
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10
fs/seq_file.c
View file

@ -37,7 +37,7 @@ int seq_open(struct file *file, struct seq_operations *op)
file->private_data = p;
}
memset(p, 0, sizeof(*p));
sema_init(&p->sem, 1);
mutex_init(&p->lock);
p->op = op;
/*
@ -71,7 +71,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
void *p;
int err = 0;
down(&m->sem);
mutex_lock(&m->lock);
/*
* seq_file->op->..m_start/m_stop/m_next may do special actions
* or optimisations based on the file->f_version, so we want to
@ -164,7 +164,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
else
*ppos += copied;
file->f_version = m->version;
up(&m->sem);
mutex_unlock(&m->lock);
return copied;
Enomem:
err = -ENOMEM;
@ -237,7 +237,7 @@ loff_t seq_lseek(struct file *file, loff_t offset, int origin)
struct seq_file *m = (struct seq_file *)file->private_data;
long long retval = -EINVAL;
down(&m->sem);
mutex_lock(&m->lock);
m->version = file->f_version;
switch (origin) {
case 1:
@ -260,7 +260,7 @@ loff_t seq_lseek(struct file *file, loff_t offset, int origin)
}
}
}
up(&m->sem);
mutex_unlock(&m->lock);
file->f_version = m->version;
return retval;
}

4
include/linux/seq_file.h
View file

@ -4,7 +4,7 @@
#include <linux/types.h>
#include <linux/string.h>
#include <asm/semaphore.h>
#include <linux/mutex.h>
struct seq_operations;
struct file;
@ -19,7 +19,7 @@ struct seq_file {
size_t count;
loff_t index;
loff_t version;
struct semaphore sem;
struct mutex lock;
struct seq_operations *op;
void *private;
};