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switch simple cases of fget_light to fdget

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-08-28 12:52:22 -04:00
parent a5b470ba06
commit 2903ff019b
44 changed files with 631 additions and 761 deletions
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kernel/sys.c
+8 -8
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@@ -1788,15 +1788,15 @@ SYSCALL_DEFINE1(umask, int, mask)
#ifdef CONFIG_CHECKPOINT_RESTORE
static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
{
struct file *exe_file;
struct fd exe;
struct dentry *dentry;
int err, fput_needed;
int err;
exe_file = fget_light(fd, &fput_needed);
if (!exe_file)
exe = fdget(fd);
if (!exe.file)
return -EBADF;
dentry = exe_file->f_path.dentry;
dentry = exe.file->f_path.dentry;
/*
* Because the original mm->exe_file points to executable file, make
@@ -1805,7 +1805,7 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
*/
err = -EACCES;
if (!S_ISREG(dentry->d_inode->i_mode) ||
exe_file->f_path.mnt->mnt_flags & MNT_NOEXEC)
exe.file->f_path.mnt->mnt_flags & MNT_NOEXEC)
goto exit;
err = inode_permission(dentry->d_inode, MAY_EXEC);
@@ -1839,12 +1839,12 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
goto exit_unlock;
err = 0;
set_mm_exe_file(mm, exe_file); /* this grabs a reference to exe_file */
set_mm_exe_file(mm, exe.file); /* this grabs a reference to exe.file */
exit_unlock:
up_write(&mm->mmap_sem);
exit:
fput_light(exe_file, fput_needed);
fdput(exe);
return err;
}