Release 4.7 fs/seq_file.c
/*
* linux/fs/seq_file.c
*
* helper functions for making synthetic files from sequences of records.
* initial implementation -- AV, Oct 2001.
*/
#include <linux/fs.h>
#include <linux/export.h>
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/cred.h>
#include <linux/mm.h>
#include <linux/printk.h>
#include <linux/string_helpers.h>
#include <asm/uaccess.h>
#include <asm/page.h>
static void seq_set_overflow(struct seq_file *m)
{
m->count = m->size;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
kamezawa hiroyuki | kamezawa hiroyuki | 19 | 100.00% | 1 | 100.00% |
| Total | 19 | 100.00% | 1 | 100.00% |
static void *seq_buf_alloc(unsigned long size)
{
void *buf;
gfp_t gfp = GFP_KERNEL;
/*
* For high order allocations, use __GFP_NORETRY to avoid oom-killing -
* it's better to fall back to vmalloc() than to kill things. For small
* allocations, just use GFP_KERNEL which will oom kill, thus no need
* for vmalloc fallback.
*/
if (size > PAGE_SIZE)
gfp |= __GFP_NORETRY | __GFP_NOWARN;
buf = kmalloc(size, gfp);
if (!buf && size > PAGE_SIZE)
buf = vmalloc(size);
return buf;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
heiko carstens | heiko carstens | 42 | 68.85% | 1 | 50.00% |
greg thelen | greg thelen | 19 | 31.15% | 1 | 50.00% |
| Total | 61 | 100.00% | 2 | 100.00% |
/**
* seq_open - initialize sequential file
* @file: file we initialize
* @op: method table describing the sequence
*
* seq_open() sets @file, associating it with a sequence described
* by @op. @op->start() sets the iterator up and returns the first
* element of sequence. @op->stop() shuts it down. @op->next()
* returns the next element of sequence. @op->show() prints element
* into the buffer. In case of error ->start() and ->next() return
* ERR_PTR(error). In the end of sequence they return %NULL. ->show()
* returns 0 in case of success and negative number in case of error.
* Returning SEQ_SKIP means "discard this element and move on".
* Note: seq_open() will allocate a struct seq_file and store its
* pointer in @file->private_data. This pointer should not be modified.
*/
int seq_open(struct file *file, const struct seq_operations *op)
{
struct seq_file *p;
WARN_ON(file->private_data);
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
file->private_data = p;
mutex_init(&p->lock);
p->op = op;
// No refcounting: the lifetime of 'p' is constrained
// to the lifetime of the file.
p->file = file;
/*
* Wrappers around seq_open(e.g. swaps_open) need to be
* aware of this. If they set f_version themselves, they
* should call seq_open first and then set f_version.
*/
file->f_version = 0;
/*
* seq_files support lseek() and pread(). They do not implement
* write() at all, but we clear FMODE_PWRITE here for historical
* reasons.
*
* If a client of seq_files a) implements file.write() and b) wishes to
* support pwrite() then that client will need to implement its own
* file.open() which calls seq_open() and then sets FMODE_PWRITE.
*/
file->f_mode &= ~FMODE_PWRITE;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
linus torvalds | linus torvalds | 62 | 64.58% | 3 | 30.00% |
al viro | al viro | 12 | 12.50% | 1 | 10.00% |
prasanna meda | prasanna meda | 7 | 7.29% | 1 | 10.00% |
eric w. biederman | eric w. biederman | 6 | 6.25% | 2 | 20.00% |
yann droneaud | yann droneaud | 6 | 6.25% | 1 | 10.00% |
ingo molnar | ingo molnar | 2 | 2.08% | 1 | 10.00% |
helge deller | helge deller | 1 | 1.04% | 1 | 10.00% |
| Total | 96 | 100.00% | 10 | 100.00% |
EXPORT_SYMBOL(seq_open);
static int traverse(struct seq_file *m, loff_t offset)
{
loff_t pos = 0, index;
int error = 0;
void *p;
m->version = 0;
index = 0;
m->count = m->from = 0;
if (!offset) {
m->index = index;
return 0;
}
if (!m->buf) {
m->buf = seq_buf_alloc(m->size = PAGE_SIZE);
if (!m->buf)
return -ENOMEM;
}
p = m->op->start(m, &index);
while (p) {
error = PTR_ERR(p);
if (IS_ERR(p))
break;
error = m->op->show(m, p);
if (error < 0)
break;
if (unlikely(error)) {
error = 0;
m->count = 0;
}
if (seq_has_overflowed(m))
goto Eoverflow;
if (pos + m->count > offset) {
m->from = offset - pos;
m->count -= m->from;
m->index = index;
break;
}
pos += m->count;
m->count = 0;
if (pos == offset) {
index++;
m->index = index;
break;
}
p = m->op->next(m, p, &index);
}
m->op->stop(m, p);
m->index = index;
return error;
Eoverflow:
m->op->stop(m, p);
kvfree(m->buf);
m->count = 0;
m->buf = seq_buf_alloc(m->size <<= 1);
return !m->buf ? -ENOMEM : -EAGAIN;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
eric w. biederman | eric w. biederman | 135 | 40.30% | 1 | 9.09% |
linus torvalds | linus torvalds | 126 | 37.61% | 1 | 9.09% |
al viro | al viro | 52 | 15.52% | 4 | 36.36% |
prasanna meda | prasanna meda | 10 | 2.99% | 1 | 9.09% |
alexey dobriyan | alexey dobriyan | 6 | 1.79% | 1 | 9.09% |
heiko carstens | heiko carstens | 3 | 0.90% | 1 | 9.09% |
kamezawa hiroyuki | kamezawa hiroyuki | 2 | 0.60% | 1 | 9.09% |
joe perches | joe perches | 1 | 0.30% | 1 | 9.09% |
| Total | 335 | 100.00% | 11 | 100.00% |
/**
* seq_read - ->read() method for sequential files.
* @file: the file to read from
* @buf: the buffer to read to
* @size: the maximum number of bytes to read
* @ppos: the current position in the file
*
* Ready-made ->f_op->read()
*/
ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
{
struct seq_file *m = file->private_data;
size_t copied = 0;
loff_t pos;
size_t n;
void *p;
int err = 0;
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
* pass the file->f_version to those methods.
*
* seq_file->version is just copy of f_version, and seq_file
* methods can treat it simply as file version.
* It is copied in first and copied out after all operations.
* It is convenient to have it as part of structure to avoid the
* need of passing another argument to all the seq_file methods.
*/
m->version = file->f_version;
/* Don't assume *ppos is where we left it */
if (unlikely(*ppos != m->read_pos)) {
while ((err = traverse(m, *ppos)) == -EAGAIN)
;
if (err) {
/* With prejudice... */
m->read_pos = 0;
m->version = 0;
m->index = 0;
m->count = 0;
goto Done;
} else {
m->read_pos = *ppos;
}
}
/* grab buffer if we didn't have one */
if (!m->buf) {
m->buf = seq_buf_alloc(m->size = PAGE_SIZE);
if (!m->buf)
goto Enomem;
}
/* if not empty - flush it first */
if (m->count) {
n = min(m->count, size);
err = copy_to_user(buf, m->buf + m->from, n);
if (err)
goto Efault;
m->count -= n;
m->from += n;
size -= n;
buf += n;
copied += n;
if (!m->count)
m->index++;
if (!size)
goto Done;
}
/* we need at least one record in buffer */
pos = m->index;
p = m->op->start(m, &pos);
while (1) {
err = PTR_ERR(p);
if (!p || IS_ERR(p))
break;
err = m->op->show(m, p);
if (err < 0)
break;
if (unlikely(err))
m->count = 0;
if (unlikely(!m->count)) {
p = m->op->next(m, p, &pos);
m->index = pos;
continue;
}
if (m->count < m->size)
goto Fill;
m->op->stop(m, p);
kvfree(m->buf);
m->count = 0;
m->buf = seq_buf_alloc(m->size <<= 1);
if (!m->buf)
goto Enomem;
m->version = 0;
pos = m->index;
p = m->op->start(m, &pos);
}
m->op->stop(m, p);
m->count = 0;
goto Done;
Fill:
/* they want more? let's try to get some more */
while (m->count < size) {
size_t offs = m->count;
loff_t next = pos;
p = m->op->next(m, p, &next);
if (!p || IS_ERR(p)) {
err = PTR_ERR(p);
break;
}
err = m->op->show(m, p);
if (seq_has_overflowed(m) || err) {
m->count = offs;
if (likely(err <= 0))
break;
}
pos = next;
}
m->op->stop(m, p);
n = min(m->count, size);
err = copy_to_user(buf, m->buf, n);
if (err)
goto Efault;
copied += n;
m->count -= n;
if (m->count)
m->from = n;
else
pos++;
m->index = pos;
Done:
if (!copied)
copied = err;
else {
*ppos += copied;
m->read_pos += copied;
}
file->f_version = m->version;
mutex_unlock(&m->lock);
return copied;
Enomem:
err = -ENOMEM;
goto Done;
Efault:
err = -EFAULT;
goto Done;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
eric w. biederman | eric w. biederman | 461 | 63.32% | 2 | 15.38% |
linus torvalds | linus torvalds | 212 | 29.12% | 2 | 15.38% |
earl chew | earl chew | 16 | 2.20% | 1 | 7.69% |
al viro | al viro | 15 | 2.06% | 2 | 15.38% |
alexey dobriyan | alexey dobriyan | 10 | 1.37% | 1 | 7.69% |
prasanna meda | prasanna meda | 5 | 0.69% | 1 | 7.69% |
heiko carstens | heiko carstens | 3 | 0.41% | 1 | 7.69% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 3 | 0.41% | 1 | 7.69% |
kamezawa hiroyuki | kamezawa hiroyuki | 2 | 0.27% | 1 | 7.69% |
joe perches | joe perches | 1 | 0.14% | 1 | 7.69% |
| Total | 728 | 100.00% | 13 | 100.00% |
EXPORT_SYMBOL(seq_read);
/**
* seq_lseek - ->llseek() method for sequential files.
* @file: the file in question
* @offset: new position
* @whence: 0 for absolute, 1 for relative position
*
* Ready-made ->f_op->llseek()
*/
loff_t seq_lseek(struct file *file, loff_t offset, int whence)
{
struct seq_file *m = file->private_data;
loff_t retval = -EINVAL;
mutex_lock(&m->lock);
m->version = file->f_version;
switch (whence) {
case SEEK_CUR:
offset += file->f_pos;
case SEEK_SET:
if (offset < 0)
break;
retval = offset;
if (offset != m->read_pos) {
while ((retval = traverse(m, offset)) == -EAGAIN)
;
if (retval) {
/* with extreme prejudice... */
file->f_pos = 0;
m->read_pos = 0;
m->version = 0;
m->index = 0;
m->count = 0;
} else {
m->read_pos = offset;
retval = file->f_pos = offset;
}
} else {
file->f_pos = offset;
}
}
file->f_version = m->version;
mutex_unlock(&m->lock);
return retval;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
linus torvalds | linus torvalds | 124 | 67.03% | 2 | 18.18% |
prasanna meda | prasanna meda | 22 | 11.89% | 1 | 9.09% |
eric w. biederman | eric w. biederman | 14 | 7.57% | 1 | 9.09% |
gu zheng | gu zheng | 9 | 4.86% | 1 | 9.09% |
alexey dobriyan | alexey dobriyan | 8 | 4.32% | 1 | 9.09% |
ingo molnar | ingo molnar | 2 | 1.08% | 1 | 9.09% |
cyrill gorcunov | cyrill gorcunov | 2 | 1.08% | 1 | 9.09% |
andrew morton | andrew morton | 2 | 1.08% | 1 | 9.09% |
david sterba | david sterba | 1 | 0.54% | 1 | 9.09% |
randy dunlap | randy dunlap | 1 | 0.54% | 1 | 9.09% |
| Total | 185 | 100.00% | 11 | 100.00% |
EXPORT_SYMBOL(seq_lseek);
/**
* seq_release - free the structures associated with sequential file.
* @file: file in question
* @inode: its inode
*
* Frees the structures associated with sequential file; can be used
* as ->f_op->release() if you don't have private data to destroy.
*/
int seq_release(struct inode *inode, struct file *file)
{
struct seq_file *m = file->private_data;
kvfree(m->buf);
kfree(m);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
linus torvalds | linus torvalds | 38 | 97.44% | 1 | 50.00% |
heiko carstens | heiko carstens | 1 | 2.56% | 1 | 50.00% |
| Total | 39 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(seq_release);
/**
* seq_escape - print string into buffer, escaping some characters
* @m: target buffer
* @s: string
* @esc: set of characters that need escaping
*
* Puts string into buffer, replacing each occurrence of character from
* @esc with usual octal escape.
* Use seq_has_overflowed() to check for errors.
*/
void seq_escape(struct seq_file *m, const char *s, const char *esc)
{
char *buf;
size_t size = seq_get_buf(m, &buf);
int ret;
ret = string_escape_str(s, buf, size, ESCAPE_OCTAL, esc);
seq_commit(m, ret < size ? ret : -1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
linus torvalds | linus torvalds | 34 | 50.75% | 1 | 25.00% |
andy shevchenko | andy shevchenko | 31 | 46.27% | 1 | 25.00% |
kamezawa hiroyuki | kamezawa hiroyuki | 1 | 1.49% | 1 | 25.00% |
joe perches | joe perches | 1 | 1.49% | 1 | 25.00% |
| Total | 67 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(seq_escape);
void seq_vprintf(struct seq_file *m, const char *f, va_list args)
{
int len;
if (m->count < m->size) {
len = vsnprintf(m->buf + m->count, m->size - m->count, f, args);
if (m->count + len < m->size) {
m->count += len;
return;
}
}
seq_set_overflow(m);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
linus torvalds | linus torvalds | 76 | 90.48% | 1 | 25.00% |
steven whitehouse | steven whitehouse | 3 | 3.57% | 1 | 25.00% |
kamezawa hiroyuki | kamezawa hiroyuki | 3 | 3.57% | 1 | 25.00% |
joe perches | joe perches | 2 | 2.38% | 1 | 25.00% |
| Total | 84 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(seq_vprintf);
void seq_printf(struct seq_file *m, const char *f, ...)
{
va_list args;
va_start(args, f);
seq_vprintf(m, f, args);
va_end(args);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
steven whitehouse | steven whitehouse | 40 | 97.56% | 1 | 50.00% |
joe perches | joe perches | 1 | 2.44% | 1 | 50.00% |
| Total | 41 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(seq_printf);
/**
* mangle_path - mangle and copy path to buffer beginning
* @s: buffer start
* @p: beginning of path in above buffer
* @esc: set of characters that need escaping
*
* Copy the path from @p to @s, replacing each occurrence of character from
* @esc with usual octal escape.
* Returns pointer past last written character in @s, or NULL in case of
* failure.
*/
char *mangle_path(char *s, const char *p, const char *esc)
{
while (s <= p) {
char c = *p++;
if (!c) {
return s;
} else if (!strchr(esc, c)) {
*s++ = c;
} else if (s + 4 > p) {
break;
} else {
*s++ = '\\';
*s++ = '0' + ((c & 0300) >> 6);
*s++ = '0' + ((c & 070) >> 3);
*s++ = '0' + (c & 07);
}
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 121 | 91.67% | 2 | 66.67% |
ram pai | ram pai | 11 | 8.33% | 1 | 33.33% |
| Total | 132 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(mangle_path);
/**
* seq_path - seq_file interface to print a pathname
* @m: the seq_file handle
* @path: the struct path to print
* @esc: set of characters to escape in the output
*
* return the absolute path of 'path', as represented by the
* dentry / mnt pair in the path parameter.
*/
int seq_path(struct seq_file *m, const struct path *path, const char *esc)
{
char *buf;
size_t size = seq_get_buf(m, &buf);
int res = -1;
if (size) {
char *p = d_path(path, buf, size);
if (!IS_ERR(p)) {
char *end = mangle_path(buf, p, esc);
if (end)
res = end - buf;
}
}
seq_commit(m, res);
return res;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
ram pai | ram pai | 60 | 57.69% | 1 | 25.00% |
miklos szeredi | miklos szeredi | 36 | 34.62% | 1 | 25.00% |
al viro | al viro | 8 | 7.69% | 2 | 50.00% |
| Total | 104 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(seq_path);
/**
* seq_file_path - seq_file interface to print a pathname of a file
* @m: the seq_file handle
* @file: the struct file to print
* @esc: set of characters to escape in the output
*
* return the absolute path to the file.
*/
int seq_file_path(struct seq_file *m, struct file *file, const char *esc)
{
return seq_path(m, &file->f_path, esc);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 33 | 100.00% | 1 | 100.00% |
| Total | 33 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(seq_file_path);
/*
* Same as seq_path, but relative to supplied root.
*/
int seq_path_root(struct seq_file *m, const struct path *path,
const struct path *root, const char *esc)
{
char *buf;
size_t size = seq_get_buf(m, &buf);
int res = -ENAMETOOLONG;
if (size) {
char *p;
p = __d_path(path, root, buf, size);
if (!p)
return SEQ_SKIP;
res = PTR_ERR(p);
if (!IS_ERR(p)) {
char *end = mangle_path(buf, p, esc);
if (end)
res = end - buf;
else
res = -ENAMETOOLONG;
}
}
seq_commit(m, res);
return res < 0 && res != -ENAMETOOLONG ? res : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 126 | 86.30% | 2 | 40.00% |
al viro | al viro | 16 | 10.96% | 2 | 40.00% |
tetsuo handa | tetsuo handa | 4 | 2.74% | 1 | 20.00% |
| Total | 146 | 100.00% | 5 | 100.00% |
/*
* returns the path of the 'dentry' from the root of its filesystem.
*/
int seq_dentry(struct seq_file *m, struct dentry *dentry, const char *esc)
{
char *buf;
size_t size = seq_get_buf(m, &buf);
int res = -1;
if (size) {
char *p = dentry_path(dentry, buf, size);
if (!IS_ERR(p)) {
char *end = mangle_path(buf, p, esc);
if (end)
res = end - buf;
}
}
seq_commit(m, res);
return res;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
ram pai | ram pai | 66 | 64.08% | 1 | 33.33% |
miklos szeredi | miklos szeredi | 36 | 34.95% | 1 | 33.33% |
al viro | al viro | 1 | 0.97% | 1 | 33.33% |
| Total | 103 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(seq_dentry);
static void *single_start(struct seq_file *p, loff_t *pos)
{
return NULL + (*pos == 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static void *single_next(struct seq_file *p, void *v, loff_t *pos)
{
++*pos;
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
static void single_stop(struct seq_file *p, void *v)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 14 | 100.00% | 1 | 100.00% |
| Total | 14 | 100.00% | 1 | 100.00% |
int single_open(struct file *file, int (*show)(struct seq_file *, void *),
void *data)
{
struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
int res = -ENOMEM;
if (op) {
op->start = single_start;
op->next = single_next;
op->stop = single_stop;
op->show = show;
res = seq_open(file, op);
if (!res)
((struct seq_file *)file->private_data)->private = data;
else
kfree(op);
}
return res;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 118 | 100.00% | 1 | 100.00% |
| Total | 118 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(single_open);
int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
void *data, size_t size)
{
char *buf = seq_buf_alloc(size);
int ret;
if (!buf)
return -ENOMEM;
ret = single_open(file, show, data);
if (ret) {
kvfree(buf);
return ret;
}
((struct seq_file *)file->private_data)->buf = buf;
((struct seq_file *)file->private_data)->size = size;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 108 | 98.18% | 1 | 50.00% |
heiko carstens | heiko carstens | 2 | 1.82% | 1 | 50.00% |
| Total | 110 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(single_open_size);
int single_release(struct inode *inode, struct file *file)
{
const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
int res = seq_release(inode, file);
kfree(op);
return res;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
al viro | al viro | 51 | 98.08% | 1 | 50.00% |
helge deller | helge deller | 1 | 1.92% | 1 | 50.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(single_release);
int seq_release_private(struct inode *inode, struct file *file)
{
struct seq_file *seq = file->private_data;
kfree(seq->private);
seq->private = NULL;
return seq_release(inode, file);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
steven whitehouse | steven whitehouse | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(seq_release_private);
void *__seq_open_private(struct file *f, const struct seq_operations *ops,
int psize)
{
int rc;
void *private;
struct seq_file *seq;
private = kzalloc(psize, GFP_KERNEL);
if (private == NULL)
goto out;
rc = seq_open(f, ops);
if (rc < 0)
goto out_free;
seq = f->private_data;
seq->private = private;
return private;
out_free:
kfree(private);
out:
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pavel emelianov | pavel emelianov | 95 | 100.00% | 1 | 100.00% |
| Total | 95 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(__seq_open_private);
int seq_open_private(struct file *filp, const struct seq_operations *ops,
int psize)
{
return __seq_open_private(filp, ops, psize) ? 0 : -ENOMEM;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pavel emelianov | pavel emelianov | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(seq_open_private);
void seq_putc(struct seq_file *m, char c)
{
if (m->count >= m->size)
return;
m->buf[m->count++] = c;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
andrew morton | andrew morton | 33 | 91.67% | 1 | 50.00% |
joe perches | joe perches | 3 | 8.33% | 1 | 50.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(seq_putc);
void seq_puts(struct seq_file *m, const char *s)
{
int len = strlen(s);
if (m->count + len >= m->size) {
seq_set_overflow(m);
return;
}
memcpy(m->buf + m->count, s, len);
m->count += len;
}
Contributors