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nommu: use __vfs_read() 

... instead of open-coding the call of ->read()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-03-31 12:35:13 -04:00
parent d0f88f8d5d
commit 6e242a1cee
1 changed files with 2 additions and 2 deletions
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4
mm/nommu.c
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@ -1016,7 +1016,7 @@ static int validate_mmap_request(struct file *file,
* device */
if (!file->f_op->get_unmapped_area)
capabilities &= ~NOMMU_MAP_DIRECT;
if (!file->f_op->read)
if (!(file->f_mode & FMODE_CAN_READ))
capabilities &= ~NOMMU_MAP_COPY;
/* The file shall have been opened with read permission. */
@ -1240,7 +1240,7 @@ static int do_mmap_private(struct vm_area_struct *vma,
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = vma->vm_file->f_op->read(vma->vm_file, base, len, &fpos);
ret = __vfs_read(vma->vm_file, base, len, &fpos);
set_fs(old_fs);
if (ret < 0)