Commit 775802c0 authored by Christoph Hellwig's avatar Christoph Hellwig

fs: remove __vfs_read

Fold it into the two callers.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 6209dd91
...@@ -419,17 +419,6 @@ static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, lo ...@@ -419,17 +419,6 @@ static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, lo
return ret; return ret;
} }
ssize_t __vfs_read(struct file *file, char __user *buf, size_t count,
loff_t *pos)
{
if (file->f_op->read)
return file->f_op->read(file, buf, count, pos);
else if (file->f_op->read_iter)
return new_sync_read(file, buf, count, pos);
else
return -EINVAL;
}
ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos) ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
{ {
mm_segment_t old_fs = get_fs(); mm_segment_t old_fs = get_fs();
...@@ -443,7 +432,12 @@ ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos) ...@@ -443,7 +432,12 @@ ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
if (count > MAX_RW_COUNT) if (count > MAX_RW_COUNT)
count = MAX_RW_COUNT; count = MAX_RW_COUNT;
set_fs(KERNEL_DS); set_fs(KERNEL_DS);
ret = __vfs_read(file, (void __user *)buf, count, pos); if (file->f_op->read)
ret = file->f_op->read(file, (void __user *)buf, count, pos);
else if (file->f_op->read_iter)
ret = new_sync_read(file, (void __user *)buf, count, pos);
else
ret = -EINVAL;
set_fs(old_fs); set_fs(old_fs);
if (ret > 0) { if (ret > 0) {
fsnotify_access(file); fsnotify_access(file);
...@@ -476,17 +470,22 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) ...@@ -476,17 +470,22 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
return -EFAULT; return -EFAULT;
ret = rw_verify_area(READ, file, pos, count); ret = rw_verify_area(READ, file, pos, count);
if (!ret) { if (ret)
if (count > MAX_RW_COUNT) return ret;
count = MAX_RW_COUNT; if (count > MAX_RW_COUNT)
ret = __vfs_read(file, buf, count, pos); count = MAX_RW_COUNT;
if (ret > 0) {
fsnotify_access(file);
add_rchar(current, ret);
}
inc_syscr(current);
}
if (file->f_op->read)
ret = file->f_op->read(file, buf, count, pos);
else if (file->f_op->read_iter)
ret = new_sync_read(file, buf, count, pos);
else
ret = -EINVAL;
if (ret > 0) {
fsnotify_access(file);
add_rchar(current, ret);
}
inc_syscr(current);
return ret; return ret;
} }
......
...@@ -1917,7 +1917,6 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector, ...@@ -1917,7 +1917,6 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
struct iovec *fast_pointer, struct iovec *fast_pointer,
struct iovec **ret_pointer); struct iovec **ret_pointer);
extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *); extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *); extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t vfs_readv(struct file *, const struct iovec __user *, extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment